STARMET CORP
S-1/A, 1998-05-22
ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS
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<PAGE>
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 22, 1998
    
 
   
                                                      REGISTRATION NO. 333-49629
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
   
                                AMENDMENT NO. 1
                                       TO
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
    
                            ------------------------
 
                              STARMET CORPORATION
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                                       <C>                                       <C>
             MASSACHUSETTS                                  3350                                   04-2506761
    (STATE OR OTHER JURISDICTION OF             (PRIMARY STANDARD INDUSTRIAL                    (I.R.S. EMPLOYER
     INCORPORATION OR ORGANIZATION)             CLASSIFICATION CODE NUMBERS)                 IDENTIFICATION NUMBER)
</TABLE>
 
                            ------------------------
 
                 2229 MAIN STREET, CONCORD, MASSACHUSETTS 01742
                                 (978) 369-5410
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)
                            ------------------------
 
                           ROBERT E. QUINN, PRESIDENT
                              STARMET CORPORATION
                                2229 MAIN STREET
                          CONCORD, MASSACHUSETTS 01742
                                 (978) 369-5410
(Name and address, including zip code and telephone number, including area code,
                             of agent for service)
                            ------------------------
 
Copies to:
 
<TABLE>
<S>                                         <C>
         THOMAS A. WOOTERS, ESQ.                     JAMES C. SCOVILLE, ESQ.
          GREGORY L. WHITE, ESQ.                       Debevoise & Plimpton
           Peabody & Arnold LLP                          875 Third Avenue
              50 Rowes Wharf                         New York, New York 10022
       Boston, Massachusetts 02110
</TABLE>
 
                            ------------------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As promptly
as practicable after this Registration Statement becomes effective. If any of
the securities being registered on this Form are to be offered on a delayed or
continuous basis pursuant to Rule 415 under the Securities Act of 1933 (the
"Securities Act"), check the following box. / /
 
    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. / /
 
    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /
 
    If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. / /
 
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
check the following box. / /
                            ------------------------
 
   
                        CALCULATION OF REGISTRATION FEE
    
 
   
<TABLE>
<CAPTION>
                                 TITLE OF EACH
                              CLASS OF SECURITIES                                 PROPOSED MAXIMUM AGGREGATE       AMOUNT OF
                                TO BE REGISTERED                                     OFFERING PRICE (1)(2)      REGISTRATION FEE
<S>                                                                               <C>                          <C>
Common Stock, $0.10 par value per share                                                  $ 100,912,500            $ 29,770 (3)
</TABLE>
    
 
   
(1) Includes up to 750,000 shares previously issued to Selling Stockholders, and
    detailed as provided in the Registration Statement, and includes 450,000
    shares of Common Stock which the Underwriters have the option to purchase
    from the Company to cover over-allotments, if any.
    
(2) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457(o) under the Securities Act.
   
(3) $23,600 of this registration fee has previously been paid.
    
                         ------------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON
SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A), MAY
DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE SECURITIES
IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
                             SUBJECT TO COMPLETION
   
                               DATED MAY 22, 1998
    
 
PROSPECTUS
 
   
                                3,000,000 SHARES
    
 
                              [STARMET NAME/LOGO]
 
                                  COMMON STOCK
                                ----------------
 
   
    Of the 3,000,000 shares of common stock, $0.10 par value per share (the
"Common Stock"), offered hereby, 2,250,000 shares are being offered by Starmet
Corporation, a Massachusetts corporation (the "Company" or "Starmet"), and
750,000 shares are being offered by certain stockholders of the Company (the
"Selling Stockholders"). The Company will not receive any of the proceeds from
the sale of shares by the Selling Stockholders. See "Principal and Selling
Stockholders."
    
 
   
    The Common Stock is quoted on the Nasdaq National Market under the symbol
"STMT." On May 21, 1998, the last reported sale price of the Common Stock was
$29.25 per share. See "Price Range of Common Stock."
    
                            ------------------------
 
    SEE "RISK FACTORS" BEGINNING ON PAGE 9 FOR CERTAIN INFORMATION THAT SHOULD
BE CONSIDERED BY PROSPECTIVE PURCHASERS OF THE COMMON STOCK OFFERED HEREBY.
                            ------------------------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
  AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
    ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY          REPRESENTATION TO
                      THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                                             UNDERWRITING                            PROCEEDS TO
                                            PRICE           DISCOUNTS AND        PROCEEDS TO           SELLING
                                          TO PUBLIC        COMMISSIONS (1)       COMPANY (2)         STOCKHOLDERS
<S>                                   <C>                 <C>                 <C>                 <C>
Per Share...........................          $                   $                   $                   $
Total (3)...........................          $                   $                   $                   $
</TABLE>
 
(1) The Company and the Selling Stockholders have agreed to indemnify the
    Underwriters against certain liabilities, including liabilities under the
    Securities Act of 1933, as amended. See "Underwriting."
 
(2) Before deducting expenses payable by the Company estimated at $       .
 
   
(3) The Company has granted the Underwriters a 30-day option to purchase up to
    an additional 450,000 shares of Common Stock on the same terms and
    conditions set forth above solely to cover over-allotments, if any. If the
    Underwriters exercise this option in full, the total Price to Public,
    Underwriting Discounts and Commissions, and Proceeds to Company will be
    $         , $         and       , respectively. See "Underwriting."
    
 
                            ------------------------
 
    The shares of Common Stock are offered subject to prior sale, when, as and
if delivered to and accepted by the Underwriters and subject to certain other
conditions. The Underwriters reserve the right to withdraw, cancel or modify
such offer and to reject orders in whole or in part. It is expected that
delivery of the shares of Common Stock will be made on or about       , 1998, at
the offices of Bear, Stearns & Co. Inc., 245 Park Avenue, New York, New York
10167.
 
                            ------------------------
BEAR, STEARNS & CO. INC.                                             FURMAN SELZ
 
                THE DATE OF THIS PROSPECTUS IS            , 1998
<PAGE>
[Appear in a circle (listed clockwise from top center):]
 
[Picture of disk drive components representing the market for Beralcast disk
drive armsets.]
 
[Picture of Comanche helicopter in flight representing military applications of
the Company's products.]
 
[Picture of a satellite representing the aerospace applications of the Company's
products.]
 
[Picture of Beralcast heat sink castings for electronic applications.]
 
[Picture of UF(6) gas by-products cylinder being brought in for recycling
representing the Company's recycling technologies.]
 
[Picture of U.S. Army's M1-A2 Main Battle Tank representing the Company's
depleted uranium penetrator business.]
 
[Picture of complex Beralcast casting.]
 
[Picture of golfer swinging a golf club representing the market for Beralcast
golf clubs.]
 
[Appears in Center of page:]
 
[Starmet logo]
 
    CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK,
INCLUDING OVER-ALLOTMENT, STABILIZING AND SHORT COVERING TRANSACTIONS AND THE
IMPOSITION OF PENALTY BIDS. SEE "UNDERWRITING."
 
    CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ALSO ENGAGE IN PASSIVE
MARKET MAKING TRANSACTIONS IN THE COMMON STOCK ON THE NASDAQ NATIONAL MARKET IN
ACCORDANCE WITH RULE 103 OF REGULATION M. SEE "UNDERWRITING."
 
                                       2
<PAGE>
[Appears on upper left:]
RIGID DISK DRIVE ASSEMBLY
[Picture of disk drive assembly and components. There are two arrows pointing to
the picture.]
 
[Appears on upper right:]
MACHINED BERALCAST - Registered Trademark - ARMSET
[Picture of finished Beralcast disk drive armset. There is an arrow pointing to
the left.]
 
[Appears on middle right:]
BERALCAST - Registered Trademark - ARMSET CASTINGS
[Picture of pre-finished Beralcast disk drive armsets. There is an arrow
pointing to the left.]
 
[Appears on lower left:]
HIP JOINT REPLACEMENT
[Picture of artificial hip joint replacement. There is an arrow pointing to the
picture.]
 
[Appears on lower center:]
BIO-COMPATIBLE METAL POWDERS FOR POROUS COATINGS
[Picture of porous metal powders. There is an arrow pointing up and to the
left.]
 
[Appears on lower right:]
PROTOTYPE BERALCAST - Registered Trademark - GOLF PRODUCTS
[Picture of various Beralcast golf club heads.]
<PAGE>
[Appears on upper left:]
BERALCAST - Registered Trademark - OPTICAL PLATFORM
[Picture of Beralcast optical platform. There is an arrow that points to the
right.]
 
[Appears on upper right:]
U.S. ARMY RAH-66 COMANCHE
[Picture of Comanche helicopter in flight. There is an arrow pointing to the
picture.]
 
[Appears on middle left:]
SATELLITE BUS STRUCTURE
[Picture of partially assembled satellite. There is an arrow pointing to the
right.]
 
[Appears on lower left:]
SEAMLESS BERYLLIUM TUBING
[Picture of beryllium tubing. There is an arrow pointing to the right.]
 
[Appears on lower right:]
[Picture of satellite. There are two arrows pointing to the picture.]
COMMUNICATION SATELLITE
<PAGE>
                               PROSPECTUS SUMMARY
 
    THE FOLLOWING SUMMARY INFORMATION IS QUALIFIED IN ITS ENTIRETY BY, AND
SHOULD BE READ IN CONJUNCTION WITH, THE MORE DETAILED INFORMATION AND FINANCIAL
DATA INCLUDING THE COMPANY'S CONSOLIDATED FINANCIAL STATEMENTS AND NOTES THERETO
(THE "CONSOLIDATED FINANCIAL STATEMENTS") APPEARING ELSEWHERE IN THIS
PROSPECTUS. FOR PURPOSES OF THIS PROSPECTUS, UNLESS OTHERWISE INDICATED OR THE
CONTEXT OTHERWISE REQUIRES, REFERENCES TO "STARMET" AND THE "COMPANY" REFER TO
STARMET CORPORATION AND ITS SUBSIDIARIES. REFERENCES HEREIN TO A "FISCAL YEAR"
REFER TO THE COMPANY'S FISCAL YEAR WHICH ENDS ON SEPTEMBER 30 (E.G., FISCAL 1997
MEANS THE COMPANY'S FISCAL YEAR ENDED SEPTEMBER 30, 1997).
BERALCAST-REGISTERED TRADEMARK-, REP-REGISTERED TRADEMARK- AND
PREP-REGISTERED TRADEMARK- ARE TRADEMARKS OF THE COMPANY. THIS PROSPECTUS ALSO
CONTAINS TRADEMARKS AND TRADE NAMES OF PERSONS OTHER THAN THE COMPANY WHICH ARE
THE PROPERTY OF THEIR RESPECTIVE OWNERS. EXCEPT AS OTHERWISE INDICATED, ALL
INFORMATION IN THIS PROSPECTUS ASSUMES THAT THE UNDERWRITERS' OVER-ALLOTMENT
OPTION IS NOT EXERCISED. SEE "UNDERWRITING."
 
                                  THE COMPANY
 
    Starmet is an innovator in the design, development and processing of
specialty metals, a precision manufacturer of technologically sophisticated
metal components and products, and a leader in certain advanced materials
conversion and recycling technologies. A central aspect of the Company's
strategy is to continue to capitalize on its metallurgical, materials science
and manufacturing expertise, developed primarily for military applications, in
order to introduce new products for what the Company believes are high-growth
opportunities in large commercial markets.
 
    In its specialty metals business, Starmet produces a wide range of products
and components from advanced metals and alloys. Key among these materials is
Beralcast, the Company's family of beryllium aluminum alloys, which is being
commercially introduced for use in certain advanced applications. Based upon
initial responses by the Company's customers and testing by independent
laboratories, the Company believes that Beralcast is a cutting edge material
with advanced properties which is ideally suited for certain demanding
commercial and aerospace applications. Among its superior performance
characteristics are its light weight, dimensional stability, stiffness,
vibration damping qualities and workability. In its advanced recycling
technologies and uranium services businesses, Starmet is a fully integrated
processor of depleted uranium ("DU"), converting uranium hexafluoride ("UF(6)")
to uranium tetrafluoride ("UF(4)") and DU metal which it manufactures into DU
products such as feedstock used in the manufacture of nuclear reactor fuel by a
third party, radiation shielding, anti-armor tank penetrator munitions and
billets for conversion into tank armor.
 
   
    Starmet focuses its research and business development efforts on markets it
has identified as offering significant opportunities for growth, including
computer data storage, military and commercial aerospace and premium golf
products, among others. For example, the Company has produced prototype and pre-
production quantities of high-end disk drive arm sets, precision devices used in
rigid computer disk drives, for evaluation by certain leading disk drive
manufacturers in their high-speed, high-capacity disk drives. Among its
customers in this market, Quinta Corporation, a subsidiary of Seagate
Technologies, Inc., has informed the Company that is has selected Beralcast disk
drive arm sets for use in its high-end disk drives utilizing Quinta's next
generation laser-optical technology and that it anticipates purchasing
production levels of Beralcast disk drive arm sets. Beralcast's low density,
high stiffness to weight ratio and enhanced vibration damping qualities when
compared to competing materials results in significantly increased data storage
capacity and reduced data access time in high-end disk drives equipped with
Beralcast disk drive arm sets, according to certain customers of the Company.
For military applications, the Company has received contracts from Lockheed
Martin Corporation ("Lockheed Martin") for 58 separate Beralcast components to
be used in its most advanced electro-optical and target acquisition systems that
will be fitted on the RAH-66 Comanche ("Comanche"), the U.S. Army's next
generation advanced reconnaissance and attack helicopter. According to the U.S.
Army, Beralcast is the only known material capable of meeting critical Comanche
requirements without significant costly redesigns. In addition, U.S. and other
military forces have identified opportunities for the use of Beralcast
components for other advanced
    
 
                                       3
<PAGE>
military programs, such as the F-22 advanced tactical fighter, the updated
Patriot missile, LANTIRN (a low altitude navigation and targeting system) and
the French Rafael advanced fighter aircraft. The Company has delivered prototype
parts pursuant to contracts for these applications and is awaiting follow-on
funding for the next phases of development. The Company believes that further
significant opportunities exist for the use of Beralcast products and components
beyond these currently identified applications in commercial and military
markets.
 
   
    The Company is expanding its manufacturing capacity and plans to invest a
substantial portion of the proceeds of the offering in order to meet anticipated
demand for Beralcast materials. One of the goals of the Company's planned
capital expenditure program is to further reduce product costs, which the
Company believes is essential to the commercialization of Beralcast. Since the
introduction of its Beralcast alloys, the Company has realized significant
reductions in manufacturing costs primarily as a result of its Comanche
development work and anticipates that its manufacturing expansion program and
ongoing experience with Beralcast will result in continued cost reductions. The
Company expects that Beralcast's advantageous characteristics, including its
light weight, dimensional stability and workability, will generally offset the
higher costs of Beralcast products as compared to certain materials currently
employed in markets in which the Company intends to compete. In addition, the
Company is committed to maintaining its high quality manufacturing standards.
The Company was recently certified under ISO 9002 at its Concord, Massachusetts
facility and is the first small business and one of only fourteen companies
nationwide to qualify for the U.S. Army's highest quality manufacturing
certification. Furthermore, the Company holds regulatory facilities licenses for
the processing of low-level radioactive materials, which management believes
represent a competitive advantage and a significant barrier to entry to
potential new competitors. The Company believes that it operates the only
licensed U.S. production facility capable of offering a broad spectrum of
processing, conversion, recycling, manufacturing and shielding services for DU
and other low-level radioactive materials.
    
 
   
    Since its origins as a metallurgical laboratory affiliated with the
Massachusetts Institute of Technology ("MIT") in 1942, the Company has developed
a strong platform in the research and development of various materials science
technologies. Throughout its history, the Company has maintained close
relationships with MIT and several of the principal research laboratories
affiliated with the United States government, namely the Los Alamos National
Laboratories, the Lawrence Livermore National Laboratories, and the Sandia
National Laboratories. Each of these research laboratories has been or is a
party to cooperative research and development agreements with Starmet to jointly
develop and improve various materials science technologies and to share such
research. The Company has funded certain research programs led by MIT staff
members and shared laboratory facilities with MIT. In addition, Dr. Kenneth
Smith, a Professor of Chemical Engineering and former Associate Provost of MIT,
has served on the Company's Board of Directors since 1985. The Company believes
that these relationships, its patented and proprietary technology, internal and
customer funded research and development efforts and its sole supplier or
provider status in some instances position Starmet at the forefront of the
development and commercialization of various materials science technologies,
including casting, the manufacture of powdered metals, the development of
various specialized alloys and advanced materials recycling. Over the course of
its history, the Company has undergone several transitions in response to
fundamental changes in its markets and to take advantage of new business
opportunities. From its focus on high-volume commercial production of specialty
metal powders during the 1970s and the precision manufacture of DU penetrators
used in anti-armor munitions during the 1980s and 1990s, to the recent
introduction of Beralcast, the Company has a history of developing and bringing
to market products that are extensions of its strong foundation in materials
science, such as spherical powders for use in early Xerox machines, bi-metal
components for the Apollo space program and Beralcast components for the United
States military's F-22 fighter and Comanche helicopter.
    
 
                                       4
<PAGE>
SPECIALTY METAL PRODUCTS
 
   
    Starmet develops and manufactures a wide range of advanced metal products
and components for commercial and aerospace applications. These products are
manufactured from various metals and alloys, including the Company's Beralcast
alloys, pure beryllium, titanium, steel and zirconium. Beralcast is an
investment-castable family of beryllium aluminum alloys designed for use in
secondary structural and electronic applications. The Company believes that it
is the technological leader in the development and production of beryllium
aluminum alloys. The Company's patented Beralcast alloys are more than 3 times
stiffer than aluminum with 22 percent less weight and can be precision cast to
simple and complex configurations. For many applications, product requirements
demand lightweight, dimensionally stable, high stiffness and workable materials
such as Beralcast. In such applications, certain customers have reported
achieving up to 50% weight savings using Beralcast in place of aluminum. Certain
disk drive manufacturers for which the Company has produced prototype and
pre-production quantities of disk drive arm sets have advised the Company that
Beralcast provides distinct performance advantages compared with competing
materials for high-end disk drives. The Company believes that there is
significant potential to penetrate the market for high-end disk drives.
Shipments of rigid disk drives are expected to grow from an estimated 126
million units in 1997 to 201 million units in 2000 according to Disk/Trend, Inc.
The Company estimates that high-end disk drives represent between 5% and 10% of
this market. The Company also believes that Beralcast's light weight,
dimensional stability, workability and other performance characteristics make it
an ideal material for a number of other commercial applications including
commercial satellite components and premium golf club heads and shafts. In
addition to Beralcast products and components, the Company manufactures
high-quality spherical metal powders which are used in porous adhesion coatings
on medical prostheses and in other products. Management believes the Company's
metal powders offer performance advantages over competing powders in these
markets since they are cleaner, more uniformly spherical and have a higher
percentage of particles within a desired size range from a given amount of raw
material.
    
 
ADVANCED RECYCLING TECHNOLOGIES AND URANIUM SERVICES
 
    Starmet develops and provides a variety of products and services based upon
its longstanding metallurgical, radiological and chemical know-how, including,
in particular, its expertise in processing and converting UF(6) and its
derivative UF(4) into materials and products that can be utilized in a variety
of specialized applications. Starmet owns and operates the only production
facility in North America capable of converting natural UF(6) and depleted UF(6)
into UF(4). Depleted UF(6) is a low-level radioactive by-product of the
enrichment of uranium. From UF(4), the Company produces DU and natural uranium
("NU") metal which it manufactures into various uranium metal products. The
Company's uranium metal products include DU penetrators used as anti-armor
munitions, DU billets for conversion into tank armor, NU and DU feedstock
supplied to the United States Enrichment Corporation's ("USEC") Atomic Vapor
Laser Isotope Separation ("AVLIS") program for laser-based enrichment into
nuclear reactor fuel, and industrial and medical shielding devices. Starmet also
owns and operates the only FAA-approved facility in the United States licensed
to repair DU counterweights, which are used in various wide-body commercial and
military aircraft and which are periodically required to be refurbished. Within
its shielding technology business, the Company has received exclusive commercial
production rights to a patented shielding product known as DUCRETE shielding,
which uses a uranium oxide aggregate mixed with concrete to form an enhanced
radiation shielding product. The Company is exploring with the Department of
Energy ("DoE") and several commercial customers specific applications for the
use of DUCRETE shielding, including as containment vessels for spent fuel and
other high-level radioactive waste products. In addition, the Company has the
capability to recycle radioactively contaminated steel into storage boxes for
containment of various radioactive wastes. Due to anticipated reduced U.S.
government procurement plans, the Company expects that no revenues will be
derived from DU penetrator operations after the second quarter of fiscal 1999.
 
                                       5
<PAGE>
                                    STRATEGY
 
    The Company's strategy is to grow revenues and profits by exploiting its
materials expertise to manufacture products for currently identified markets and
develop new applications for its technologies. Specific components of the
Company's strategy include:
 
    APPLY TECHNOLOGICAL EXPERTISE TO COMMERCIAL APPLICATIONS.  The Company
intends to continue to capitalize on its metallurgical, materials science and
manufacturing expertise, developed primarily for military applications, in order
to introduce new products for what the Company believes are high-growth
opportunities in large commercial markets. In these efforts, the Company will
apply its skills in materials development, investment casting difficult alloys,
manipulating and forming complex components, and manufacturing, processing and
recycling certain advanced materials. An example is the development of the
Company's Beralcast technology which the Company is applying to various
applications in commercial and aerospace markets.
 
    DEVELOP NEW PRODUCTS AND MARKETS THROUGH CONTINUED RESEARCH AND
DEVELOPMENT.  The Company intends to continue to focus its own and customer
funded research and development efforts on technological innovation designed to
yield sophisticated, high-performance commercial products, materials and
services. The Company intends to pursue this strategy by maintaining a strong
internal research and development team, continuing its longstanding research
relationships with major government research centers and working closely with
customers. The primary goal of the Company's research and development efforts is
to accelerate commercialization of its materials science technologies by
addressing customer identified applications with significant market potential.
 
    INCREASE MANUFACTURING CAPACITY AND REDUCE MANUFACTURING COSTS.  The Company
intends to leverage its manufacturing expertise by shifting from prototype to
full-scale production in order to meet anticipated customer demands. A
substantial portion of the proceeds of the offering will be used to purchase
additional manufacturing equipment, including new furnaces and automated
production equipment, principally for the Company's Beralcast products. Among
the goals of the Company's planned capital expenditure program are to increase
manufacturing capacity, improve manufacturing efficiencies, enhance product
quality and further reduce manufacturing costs.
 
    MAINTAIN FOCUS ON CUSTOMER SATISFACTION.  The Company seeks to continue
providing the highest possible level of customer service and customer
satisfaction. For example, the Company engages in concurrent engineering with
its customers to create value-added, customized products that provide solutions
to specific technical issues. The Company seeks to implement design-to-cost
programs with its customers to lower overall product costs. In addition, the
Company has technical field offices at certain customer sites so that the
Company can cooperate in design optimization and provide technical and sales
support. The Company at its Concord facility is the first small business and one
of only fourteen companies nationwide to qualify for the U.S. Army's highest
quality manufacturing certification, and this facility is also ISO 9002
certified. The Company intends to continue its commitment to high-quality
manufacturing.
 
   
    PURSUE SELECTED COOPERATIVE RELATIONSHIPS.  In order to penetrate new
markets and accelerate its expansion, the Company intends to pursue selected
teaming arrangements, licenses, joint ventures and other cooperative business
relationships. This strategy is designed to leverage the Company's technological
expertise by increasing production capacity for the Company's products without
the Company having to fund all related capital expenditures. This strategy is
further designed to allow Starmet to take advantage of the existing distribution
channels of its current or potential partners. As part of this strategy and to
facilitate such cooperative relationships, in October 1997 the Company completed
an internal reorganization to organize the Company's subsidiaries along
functional business lines. A recent example of this co-development strategy is
Trio Star, LLC ("Trio Star"), a business venture formed by the Company with R-
Cubed Composites, Inc. (a subsidiary of Perstorp AB) and Advanced Product Labs,
to jointly market, develop and supply structural components to the commercial
satellite and aerospace markets.
    
 
                                       6
<PAGE>
                                  THE OFFERING
 
   
<TABLE>
<S>                                                  <C>
Common Stock offered by the Company................        2,250,000
                                                              shares
Common Stock offered by the Selling Stockholders...   750,000 shares
Total Common Stock offered hereby (1)..............        3,000,000
                                                              shares
Common Stock to be outstanding after the offering
(1)(2).............................................        7,040,674
                                                              shares
</TABLE>
    
 
<TABLE>
<S>                                                  <C>
Use of Proceeds....................................  The Company intends to use the net
                                                     proceeds of the offering to fund
                                                     capital expenditures on fixed assets
                                                     and equipment to increase manufacturing
                                                     capacity, to repay all borrowings
                                                     outstanding under the Company's
                                                     Existing Credit Facility (as defined
                                                     herein), to repay certain indebtedness
                                                     owed to certain stockholders and for
                                                     working capital and general corporate
                                                     purposes. The Company will not receive
                                                     any of the proceeds from the sale of
                                                     shares of Common Stock offered by the
                                                     Selling Stockholders. See "Use of
                                                     Proceeds" and "Principal and Selling
                                                     Stockholders."
 
Nasdaq National Market symbol......................  STMT
</TABLE>
 
- ------------------------
 
(1) Assumes that the Underwriters' over-allotment option is not exercised.
 
   
(2) Based on shares of Common Stock outstanding as of May 21, 1998. Does not
    include (i) an aggregate of 721,420 shares of Common Stock reserved for
    issuance upon the exercise of outstanding options or that may be granted
    under the Company's stock option plans (of which, options to purchase
    594,920 shares were outstanding as of May 21, 1998), (ii) 126,044 shares of
    Common Stock reserved for issuance upon conversion of outstanding and
    immediately convertible subordinated debentures and (iii) 182,790 shares of
    Common Stock reserved for issuance upon exercise of outstanding and
    immediately exercisable warrants (not giving effect to anti-dilution
    provisions in the First Warrant (as defined herein) held by the Company's
    principal bank lender that will be triggered as a result of the offering).
    See "Management's Discussion and Analysis of Financial Condition and Results
    of Operations -- Liquidity and Capital Resources" and "Shares Eligible for
    Future Sale."
    
 
                                  RISK FACTORS
 
    See "Risk Factors" beginning on page 9 for a discussion of certain risks
that should be considered in connection with an investment in the Common Stock
offered hereby.
 
                                       7
<PAGE>
                             SUMMARY FINANCIAL DATA
 
              (DOLLARS IN THOUSANDS EXCEPT PER SHARE INFORMATION)
 
   
    The summary statement of operations and other data set forth below for each
of the years ended September 30, 1995, 1996 and 1997 have been derived from the
Company's Consolidated Financial Statements included elsewhere herein and should
be read in conjunction with such financial statements. The summary statement of
operations and other data set forth below for each of the years ended September
30, 1993 and 1994 have been derived from audited financial statements of the
Company that are not included herein. The summary statement of operations and
other data for the six month periods ended March 31, 1997 and 1998 and the
summary balance sheet data as of March 31, 1998 have been derived from the
unaudited financial statements of the Company included elsewhere herein and, in
the opinion of management, include all adjustments, consisting only of normal
recurring adjustments, necessary for a fair presentation of the results of
operations and financial position of the Company for the periods and at the date
presented. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations."
    
   
<TABLE>
<CAPTION>
                                                                                                                     SIX
                                                                                                                   MONTHS
                                                                                                                    ENDED
                                                                     FISCAL YEAR ENDING SEPTEMBER 30,             MARCH 31,
                                                           -----------------------------------------------------  ---------
                                                             1993       1994       1995       1996       1997       1997
                                                           ---------  ---------  ---------  ---------  ---------  ---------
<S>                                                        <C>        <C>        <C>        <C>        <C>        <C>
                                                                                                                  (UNAUDITED)
STATEMENT OF OPERATIONS DATA:
  Net sales and contract revenues........................  $  17,019  $  19,004  $  18,784  $  28,694  $  28,062    $12,613
  Operating income (loss)................................    (10,496)   (10,954)    (1,924)    (2,560)     1,811        739
  Interest expense, net..................................        953        550        350        387        296        119
  Net income (loss) (1)(2)...............................     (6,207)   (10,196)       510     (3,037)     1,482        618
  Basic net income (loss) per share (3)(4)...............      (1.35)     (2.22)      0.11      (0.64)      0.31       0.13
  Basic weighted average shares outstanding (3)(4).......      4,590      4,600      4,701      4,779      4,783      4,782
  Diluted net income (loss) per share (3)(4).............      (1.35)     (2.22)      0.11      (0.64)      0.30       0.13
  Diluted weighted average shares outstanding (3)(4).....      4,590      4,600      4,706      4,779      4,959      4,928
 
OTHER DATA:
  Research & development expense.........................      1,031        575        439        876      1,309        699
  Customer funded research and development (5)...........        503        792        557      1,812        793        111
  Capital expenditures...................................      1,265        709        777      1,449      1,788        785
  Pro forma diluted net income (loss) per share before
    extraordinary item (3)(4)(6).........................                                                   0.32
  Pro forma diluted weighted average shares outstanding
    (3)(4)(6)............................................                                                  5,262
 
<CAPTION>
 
                                                             1998
                                                           ---------
<S>                                                        <C>
 
STATEMENT OF OPERATIONS DATA:
  Net sales and contract revenues........................  $  18,769
  Operating income (loss)................................       (799)
  Interest expense, net..................................        489
  Net income (loss) (1)(2)...............................     (1,288)
  Basic net income (loss) per share (3)(4)...............      (0.27)
  Basic weighted average shares outstanding (3)(4).......      4,787
  Diluted net income (loss) per share (3)(4).............      (0.27)
  Diluted weighted average shares outstanding (3)(4).....      4,787
OTHER DATA:
  Research & development expense.........................        567
  Customer funded research and development (5)...........        291
  Capital expenditures...................................      2,349
  Pro forma diluted net income (loss) per share before
    extraordinary item (3)(4)(6).........................      (0.16)
  Pro forma diluted weighted average shares outstanding
    (3)(4)(6)............................................      5,111
</TABLE>
    
   
<TABLE>
<CAPTION>
                                                                                                              AS OF
                                                                                                            MARCH 31,
                                                                      AS OF SEPTEMBER 30,                     1998
                                                     -----------------------------------------------------  ---------
                                                       1993       1994       1995       1996       1997
                                                     ---------  ---------  ---------  ---------  ---------   ACTUAL
                                                                                                            ---------
                                                                                                            (UNAUDITED)
<S>                                                  <C>        <C>        <C>        <C>        <C>        <C>
BALANCE SHEET DATA:
  Working capital..................................  $  24,532  $  17,477  $  15,866  $   9,249  $  10,743  $   7,928
  Total assets.....................................     57,223     40,542     40,886     35,118     34,704     38,540
  Total liabilities................................     20,852     14,290     13,641     10,748      8,608     13,382
  Stockholders' equity.............................     36,371     26,252     27,245     24,370     26,096     25,158
 
<CAPTION>
 
                                                     AS ADJUSTED (6)
                                                     ---------------
 
<S>                                                  <C>
BALANCE SHEET DATA:
  Working capital..................................     $  67,444
  Total assets.....................................        92,348
  Total liabilities................................         6,508
  Stockholders' equity.............................        85,840
</TABLE>
    
 
- ------------------------------
 
   
(1) Net loss for fiscal 1993 has been reduced by income of $1,100 related to the
    cumulative effect of a change in accounting principle.
    
 
   
(2) Net income for fiscal 1995 includes an extraordinary gain of $585 on the
    extinguishment of debt, net of taxes of $10.
    
 
   
(3) Adjusted to reflect the two-for-one stock dividend issued on April 7, 1997.
    
 
   
(4) Effective December 15, 1997, the Company adopted Statement of Financial
    Accounting Standards ("SFAS") No. 128, EARNINGS PER SHARE. Basic net income
    (loss) per share was computed by dividing net income (loss) by the weighted
    average shares outstanding. Diluted net income per share was computed by
    dividing net income (loss) by the weighted average number of shares and
    dilutive potential shares outstanding during the relevant period. In loss
    periods, dilutive potential shares are excluded as they would be
    anti-dilutive.
    
 
   
(5) Such amounts are included in net sales and contract revenues.
    
 
   
(6) Adjusted to give effect to the sale of 2,250,000 shares of Common Stock by
    the Company at an assumed price of $29.25 per share after deducting
    underwriting discounts and estimated expenses of $1,200 and the application
    of the estimated net proceeds therefrom. Pro forma data do not include an
    extraordinary loss of $725 ($.14 per share) associated with early
    extinguishment of indebtedness expected to occur upon the closing of the
    offering. Balance sheet data are also adjusted to reflect (a) an
    extraordinary loss of $725 associated with early extinguishment of
    indebtedness, (b) the anticipated payment by the Company of a fee of
    approximately $235 under the Facility Restructuring Agreement (as defined
    herein) to eliminate certain anti-dilution provisions of warrants held by
    its principal bank lender and (c) the assumed conversion of approximately
    $1,400 in principal amount of outstanding and immediately convertible
    subordinated debentures held by certain stockholders. See "Use of Proceeds"
    and "Management's Discussion and Analysis of Financial Condition and Results
    of Operations--Liquidity and Capital Resources."
    
 
                                       8
<PAGE>
                                  RISK FACTORS
 
    THE COMMON STOCK OFFERED HEREBY INVOLVES A HIGH DEGREE OF RISK. IN ADDITION
TO THE OTHER INFORMATION CONTAINED IN THIS PROSPECTUS, THE FOLLOWING RISK
FACTORS SHOULD BE CONSIDERED CAREFULLY IN EVALUATING THE COMPANY AND ITS
BUSINESS BEFORE PURCHASING SHARES OF COMMON STOCK OFFERED HEREBY. CERTAIN
STATEMENTS IN THIS PROSPECTUS CONTAIN FORWARD-LOOKING STATEMENTS CONCERNING THE
COMPANY'S OPERATIONS, ECONOMIC PERFORMANCE AND FINANCIAL CONDITION. SEE
"MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS--SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS."
 
HISTORY OF LOSSES; RISK OF FUTURE LOSSES
 
   
    The Company has experienced significant financial difficulties and liquidity
problems in recent years due primarily to the sharp decline in sales of DU
penetrators and a lack of orders for certain other DU products. As a result, the
Company has had to seek financing from stockholders, waivers of non-compliance
with certain covenants in its debt instruments (including waivers under the
Existing Credit Facility in February and May of 1998) and additional borrowings
under the Existing Credit Facility. Historically, a substantial portion of the
Company's revenues have been derived from the sale of products for defense
munitions and tank armor programs; however, revenues from these applications
have declined sharply in recent years due primarily to the general decline in
defense spending. In fiscal 1997, the Company derived 37% of its revenues from
the sale of products for defense munitions and tank armor. The Company expects
that no revenues will be derived from sales of penetrator defense munitions
after the second quarter of fiscal 1999, and only limited revenue will be
derived from sales of billets for conversion into tank armor thereafter. The
Company incurred operating losses in four of its last five fiscal years and
during the first six months of fiscal 1998. In addition, the Company's
accountants, in their report to the Board of Directors and stockholders of the
Company for fiscal 1995, stated that there was substantial doubt at that time
about the Company's ability to continue as a going concern. Although the Company
was profitable in fiscal 1997, reserve reversals and other non-recurring income
items accounted for the profitability. Excluding these items, the Company would
have reported a net loss in fiscal 1997. There can be no assurance that the
Company will not continue to incur losses for the remainder of fiscal 1998 or in
subsequent fiscal periods.
    
 
    The Company expects to expend substantial resources on commercial growth
opportunities, in many cases before it can be certain of market acceptance of
its current and planned products and services. The Company's ability to realize
the objectives of its business strategy and to achieve its plans for commercial
growth and profitability are subject to a number of business, industry, economic
and other factors, many of which are beyond the control of the Company, such as
the Company's ability to successfully market its products and services,
particularly in new applications for its materials and technologies, the
Company's ability to manage planned expansion and large-scale commercial
production of new products, customer demand, competition in the industries which
the Company serves and general economic conditions. The failure of the Company
to realize the objectives of its business strategy, in particular, the
full-scale commercialization of Beralcast disk drive arm sets, would have a
material adverse effect on the Company's business, financial condition and
results of operations. Ongoing losses would hinder the Company's ability to
respond effectively to market conditions, to make capital expenditures and to
take advantage of business opportunities, the failure to perform any of which
could have a material adverse effect on the Company's business, financial
condition and results of operations. See "Management's Discussion and Analysis
of Financial Condition and Results of Operations."
 
PENDING BERALCAST PATENT LITIGATION; PATENTS AND OTHER INTELLECTUAL PROPERTY
 
    On December 9, 1997, Brush Wellman, Inc. ("Brush Wellman") filed a patent
infringement suit against the Company in the United States District Court for
the District of Massachusetts (the "Massachusetts District Court") alleging that
the Company is infringing on a process patent (the "Brush Wellman Patent")
awarded to Brush Wellman for the investment casting of beryllium aluminum
alloys. Brush
 
                                       9
<PAGE>
Wellman is seeking an injunction against the Company's alleged patent
infringement, monetary damages (including treble damages) and attorney fees. On
March 28, 1998 the U.S. Patent and Trademark Office (the "PTO") granted the
Company's request (filed January 22, 1998) for re-examination (the "Request") of
the Brush Wellman Patent. In the Request, the Company contended, among other
things, that there was sufficient "prior art" in the field of investment
castings and castings of beryllium aluminum alloys such that the Brush Wellman
Patent should not have been issued. In granting the Request, the patent examiner
agreed that the Company's cited examples of prior art raised substantial new
issues of patentability which were not decided in the prior examination which
led to granting the Brush Wellman Patent. The PTO will undertake a process of
re-examination of the validity of the Brush Wellman Patent that, the Company
anticipates, could last for an extended period. There can be no assurance that
the PTO will find the Brush Wellman Patent to be invalid. On January 27, 1998,
the Company filed in the Massachusetts District Court a motion to stay the court
case pending the outcome of the re-examination proceeding. If the Massachusetts
District Court were to grant the motion to stay, the court case would not
proceed until the conclusion of the PTO's re-examination of the Brush Wellman
Patent. Although the Company believes that its motion to stay has merit, no
assurance can be given that the Massachusetts District Court will grant the
motion.
 
   
    Even though the Company has been advised by its patent counsel, Iandiorio &
Teska, that Brush Wellman's claims are without merit because the Brush Wellman
Patent is invalid as a matter of law due to "prior art" and due to the Company's
sales of investment cast beryllium aluminum products more than one year prior to
the Brush Wellman Patent application, no assurance can be given as to the
ultimate outcome of the lawsuit. Even if the lawsuit were not to proceed to
trial, the litigation could result in substantial costs to the Company, and an
unfavorable settlement of the lawsuit could place the Company at a competitive
disadvantage. An adverse judgment or settlement could subject the Company to
significant liabilities and expenses (E.G., reasonable royalties, lost profits,
attorneys' fees and trebling of damages for willfulness). An adverse outcome
also could cause the Company to incur substantial costs in redesigning the
investment casting process for its Beralcast products and components. Moreover,
there can be no assurance that redesign alternatives would be available to the
Company, and if available, that any redesign alternative would not place the
Company at a competitive disadvantage. The Company could be required to license
the disputed patent rights from Brush Wellman or to cease using the patented
technology. Any such license, if required, may not be available on terms
acceptable or favorable to the Company, or at all. Any of these results could
have a material adverse effect on the Company's business, financial condition
and results of operations. Even in the event of a successful outcome, the
Company may incur significant legal expenses in its defense.
    
 
    The Company's success depends in substantial part on its proprietary
technology, in particular, Beralcast, the Company's family of beryllium aluminum
alloys. Although the Company protects and intends to continue to protect its
intellectual property rights through patents, copyrights, trade secrets, license
agreements and other measures, there can be no assurance that the Company will
be able to protect its technology adequately or that competitors will not be
able to develop similar technology independently. In addition, the laws of
certain foreign countries in which the Company's products may be licensed do not
protect the Company's products and intellectual property rights to the same
extent as the laws of the United States. If the Company were unable to maintain
the proprietary nature of its intellectual property with respect to its
significant current or proposed products, the Company's business, financial
condition and results of operation could be materially adversely affected. There
can be no assurance that the Company will be able to obtain patent protection
for products or processes discovered using the Company's technologies.
Furthermore, there can be no assurance that any patents issued to the Company
will not be challenged, invalidated, narrowed or circumvented, or that the
rights granted thereunder will provide significant proprietary protection or
competitive advantages to the Company. Although the Company believes that its
products, patents and other proprietary rights do not infringe upon the
proprietary rights of third parties, as discussed above, the Company has been
sued by Brush Wellman with respect to the process of investment casting of
beryllium aluminum alloys, and there can be no assurance that other third
parties will not assert other infringement claims against the Company.
 
                                       10
<PAGE>
RISKS RELATED TO MANAGEMENT OF PLANNED GROWTH
 
    The Company's anticipated growth could place a significant strain on its
management, operations, financial and other resources. The Company's ability to
manage its growth will require it to continue to invest in its operational,
financial and management information systems, procedures and controls and to
attract, retain, motivate and effectively manage its employees. The Company
intends to use a substantial portion of the proceeds of the offering to expand
its Beralcast manufacturing capacity. The Company may experience design and
start-up difficulties, such as cost overruns, manufacturing and operational
difficulties and significant delays. Moreover, there can be no assurance that
the Company will realize the goals of the planned capital expenditure program,
such as reductions in product costs and enhanced product quality. If the Company
is successful in achieving its growth plans, such growth is likely to place a
significant burden on the Company's operating and financial systems, resulting
in increased responsibility for senior management and other personnel within the
Company. There can be no assurance that the Company's existing management or any
new members of management will be able to augment or improve existing systems
and controls or implement new systems and controls in response to anticipated
future growth. The Company's failure to manage its growth could have a material
adverse effect on the Company's business, financial condition and results of
operation.
 
    The Company may from time to time pursue selected teaming arrangements,
licenses, joint ventures and other cooperative relationships to increase its
production capacity or to complement or expand its existing businesses. Any of
these relationships may result in potentially dilutive issuances of equity
securities, the incurrence of additional debt, reductions of existing cash
balances, and charges to operations, any of which could have a material adverse
effect on the Company's business, results of operation and financial condition.
Selected teaming arrangements, licenses, joint ventures and other cooperative
relationships involve a number of risks that could adversely affect the
Company's operating results including the diversion of management's attention,
the entry into markets in which the Company has little or no direct prior
experience and the disruption of the Company's business. No assurance can be
given that any such relationship will not materially and adversely affect the
Company or that any such relationship will enhance the Company's business.
 
COMPETITION
 
    The Company faces significant competition from established companies in
certain of its product lines. In addition, the Company's Beralcast alloys and
other products face competition from alternative or competing materials,
products and technologies, some of which are better established than those of
the Company. Many of the Company's current and potential competitors have
significantly greater financial, technical, marketing, purchasing and other
resources than the Company, and, as a result, may be able to respond more
quickly to new or emerging technologies or standards and to changes in customer
requirements, devote greater resources to the development, promotion and sale of
products, or deliver competitive products at lower prices. Current and potential
competitors have established or may establish cooperative relationships among
themselves or with third parties to increase the ability of their products to
address the needs of the Company's prospective customers. Accordingly, it is
possible that new competitors or alliances among competitors may emerge and
rapidly acquire significant market share. Increased competition is likely to
result in price reductions, reduced operating margins and loss of market share,
any of which could have a material adverse effect on the Company's business,
results of operation and financial condition. Although the Company believes that
it has certain technological and other advantages over its competitors,
realizing and maintaining these advantages will require continued investment in
manufacturing capacity, research and development, sales and marketing, and
customer service and support. There can be no assurance that the Company will
have sufficient resources to continue to make such investments or that the
Company will be successful in maintaining such advantages. The Company believes
that its ability to compete successfully depends on a number of factors both
within and outside of its control, including price, product quality, success in
developing and introducing new products, and general market and
 
                                       11
<PAGE>
economic conditions. There can be no assurance that the Company will be able to
compete as to these or other factors or that competitive pressures faced by the
Company will not materially adversely affect its business, results of operation
and financial condition. See "Business--Competition."
 
FUTURE CAPITAL NEEDS; UNCERTAINTY OF ADDITIONAL FINANCING
 
    Expansion of the Company's operations, including anticipated growth in its
Beralcast business, the planned increase in manufacturing capacity and the
continued financing of research and development, will require the Company to
make significant expenditures. In particular, due to planned new product and
process introductions, principally to support anticipated large volume Beralcast
production, the Company anticipates spending up to approximately $90 million
over the next four years, subject to various factors, to increase the capacity
at the Company's facilities. Of this amount, the Company expects to spend
approximately $60 million on the expansion of its Beralcast business. The
Company intends to fund such capital expenditures with the proceeds of the
offering and cash expected to be generated from operations. If additional funds
in excess of the proceeds of the offering and the amount of cash available from
operations are required to permit future expansion, the Company may be required
to seek additional financing, including the issuance of additional debt and
equity securities, or curtail its expansion activities. There can be no
assurance that such funds will be sufficient to support the Company's business
strategy or that if additional financing is required it will be available in
amounts and on terms satisfactory to the Company, if at all. See "Use of
Proceeds," "Management's Discussion and Analysis of Financial Condition and
Results of Operations--Liquidity and Capital Resources" and
"Business--Manufacturing and Operations."
 
RISKS RELATED TO NEW PRODUCT INTRODUCTIONS, RAPID TECHNOLOGICAL CHANGE AND
  INDUSTRY CONDITIONS
 
    The success of new product introductions is dependent on several factors,
including timely completion and introduction of new products, quality of new
products, market acceptance and timeliness of market acceptance, production
efficiency, costs, competition, the availability of substitute products and
customer service. Although the Company attempts to determine the specific needs
of new markets, there can be no assurance that the identified markets will in
fact materialize or that the Company's products designed for these markets will
achieve any significant degree of market acceptance or that any such acceptance
will be sustained for any significant period. In particular, the Company's
Beralcast materials, which are central to its strategy, are generally more
expensive than other materials currently employed in the markets in which the
Company intends to compete. There can be no assurance that the performance
characteristics of Beralcast alloys will outweigh the greater expense of
Beralcast compared to competing materials. The Company's Beralcast products and
components currently are in the development stage and have not been brought to
market, and there can be no assurance that significant commercial business will
develop as anticipated by the Company or that these products will gain
acceptance in commercial markets. While the Company believes that there are
additional commercial applications for its Beralcast alloys, there can be no
assurances that any of its products or services will be successful or produce
revenue for the Company. Failure of new products to achieve or sustain market
acceptance could have a material adverse effect on the Company's business,
results of operation and financial condition. New product introductions will
also require substantial expenditures, and there can be no assurance that
constraints on the Company's financial resources will not adversely affect its
ability to develop and market new products. In addition, the anticipated
commercial markets for the Company's principal new products are characterized by
rapid technological change, changing customer needs, frequent new product
introduction, evolving industry standards and short product lifecycles. Failure
to successfully keep pace with technological developments could have a material
adverse affect on the Company's business, results of operation and financial
condition.
 
    The Company plans to focus its efforts on sales of its specialty metal
products to the commercial markets and military aerospace industries. The
Company currently is developing, among other things,
 
                                       12
<PAGE>
prototypes and pre-production quantities of disk drive arm sets, prototype parts
for military and commercial aerospace applications and prototypes of premium
golf club products. The market for computer storage devices historically has
grown rapidly but at varying rates, and there can be no assurance that this
market will continue to grow at historical rates. The markets for aerospace
products and sporting goods have fluctuated historically. There can be no
assurance that factors relative to general economic conditions or particular
industries will not materially adversely affect orders for the Company's
products. While certain disk drive manufacturers have provided estimates of
future demand, industry practice generally is to place only short-term orders,
accompanied by projections of demand for future operations. Accordingly, the
Company expects to commit to the cost of expanding its production capacity
without firm orders for products. Failure of markets for the Company's products
to develop, cancellation of orders or deferrals of scheduled delivery dates all
could materially adversely affect the Company's business, results of operation
and financial condition.
 
AVAILABILITY AND COST OF BERYLLIUM AND OTHER RAW MATERIALS
 
    Raw materials used by the Company include a number of metals and minerals
used to produce the alloys included in its products and castings, including
beryllium, titanium, aluminum, nickel, cobalt, chromium and molybdenum, among
others. Prices of these materials can be volatile due to a number of factors
beyond the control of the Company, including domestic and international economic
conditions and competition. This volatility could significantly effect the
availability and prices of raw materials used by the Company. There can be no
assurance that the Company will be able to pass price fluctuations through to
customers, and price moves may adversely affect sales, operating margins and net
income. Depending upon certain market conditions, the Company may engage in
forward purchases of some of these materials. However, the Company ordinarily
does not attempt to hedge the price risk of its raw materials and has no
long-term, fixed price contracts or arrangements for the raw materials it
purchases. Commercial deposits of certain metals, such as beryllium, cobalt,
nickel, titanium, chromium and molybdenum, that are required for the alloys used
in the Company's precision castings and specialty metal powders, are found in
only a few parts of the world. The availability and prices of these metals may
be influenced by private or governmental cartels, changes in world politics,
unstable governments in exporting nations and inflation. In particular, the
Company currently purchases beryllium, a metal which is used to form its
Beralcast alloys, principally from a producer-supplier located in Kazakhstan and
from multiple distributors located in Estonia, Kazakhstan, Sweden, the United
States, China and Russia. The Company also purchases scrap beryllium from
domestic and foreign distributors. The only three producers of beryllium
worldwide are located in Kazakhstan, the United States and China. For
competitive reasons, the Company does not procure significant quantities of
beryllium raw materials from Brush Wellman, the sole U.S. producer of beryllium,
which is the Company's principal competitor for beryllium aluminum products and
the plaintiff in the pending patent lawsuit. The Company believes that a
sufficient supply of beryllium remains available for its current demand.
However, if its Beralcast products receive broad commercial acceptance, the
Company's demand for beryllium will increase. The cost of beryllium could
increase as a result of the Company's increased demand, and supplies of
beryllium could also be affected. Although the Company has not experienced
shortages of raw materials in the past, there can be no assurance that such
shortages will not occur in the future. Any substantial increase in raw material
prices or a continued interruption in supply of raw materials, in particular of
beryllium from the Company's producer-supplier located in Kazakhstan, could have
a material adverse effect on the Company's business, results of operation and
financial condition. See "Business--Sources of Raw Materials."
 
ENVIRONMENTAL, HEALTH AND REGULATORY MATTERS
 
    The Company is subject to comprehensive and changing federal, state, local
and international laws, regulations and ordinances (together, "Environmental
Laws") that (i) govern activities or operations that may have adverse
environmental effects, such as discharges to air and water, as well as handling
and disposal practices for solid and hazardous wastes, and (ii) impose liability
for the costs of cleaning up, and
 
                                       13
<PAGE>
certain damages resulting from, sites of past spills, disposals or other
releases of hazardous substances and materials, including liability under the
Comprehensive Environmental Response, Compensation and Liability Act of 1980
("CERCLA," the federal "Superfund" statute), and similar state statutes for the
investigation and remediation of environmental contamination at properties owned
and/or operated by it and at off-site locations where it has arranged for the
disposal of hazardous substances. Furthermore, depleted uranium, a material
regularly processed by the Company, is a low-level radioactive material and the
Company is subject to governmental licensing and regulation.
 
    If it is determined that the Company is not in compliance with current
Environmental Laws, the Company could be subject to fines and penalties. The
amount of any such fines and penalties could be material. In addition, the
Company uses depleted uranium, beryllium and other hazardous substances, and as
is the case with manufacturers in general, if a release of hazardous substances
occurs on or from the Company's properties or from an off-site disposal
facility, the Company may be held liable and may be required to pay the cost of
remedying the condition. The amount of any such liability could be material.
 
    The Company has made, and expects to continue to make, expenditures to
comply with current and future Environmental Laws. The Company anticipates that
it could incur additional capital and operating costs in the future to comply
with existing Environmental Laws and new requirements arising from new or
amended statutes and regulations. In addition, because the applicable regulatory
agencies have not yet promulgated final standards for some existing
environmental programs, the Company cannot at this time reasonably estimate the
cost for compliance with these additional requirements. The amount of any such
compliance costs could be material. The Company cannot predict the impact that
future regulations will impose upon the Company's business.
 
   
    The Company is required to maintain certain licenses to possess and process
depleted uranium materials at its facilities in Concord and South Carolina,
respectively. Under applicable licensing regulations pertaining to
decommissioning and disposal of certain hazardous materials ("D&D") at licensed
sites, the Company has submitted to the relevant regulatory agencies for each of
its facilities a Decommissioning Funding Plan ("DFP") to provide for possible
future decommissioning of its facilities. The Company is also required to
provide financial assurance for such decommissioning pursuant to applicable
regulations. The Company has satisfied these requirements through a combination
of letters of credit and certain assurances from the U.S. government, subject to
government funding appropriations. Although it believes that the U.S. government
will fund all eventual D&D costs, the Company has not requested, and has not
received, any specific written assurance that the U.S. government will accept
responsibility for the D&D costs at the Company's South Carolina facility. In
the event that U.S. government funding of D&D at any site is unavailable for any
reason, the Company could be required to pay for such D&D costs, which could
have a material adverse effect on the Company's business, result of operations
and financial condition. See Note 11 to Consolidated Financial Statements.
    
 
   
    The Company is currently remediating the holding basin site at its Concord
facility and may incur costs in excess of its fixed price contract with the
United States Army for remediation of the holding basin. The Company was
notified by Zhagrus Environmental, Inc., a subcontractor performing the
remediation work, that Zhagrus will incur additional costs in connection with
the disposal of the material from the holding basin and has requested that the
Company pay it to the extent of any such additional costs. The amount of any
additional costs could be material. In the event that the Company became liable
to Zhagrus for any material amount which is not authorized to be paid by the
U.S. Army, such liability could have a material adverse effect on the Company's
business, results of operations and financial condition. See
"Business--Environmental, Safety and Regulatory Matters" and "Business--Concord
Site Remediation and Decommissioning Planning Requirements."
    
 
    DU and beryllium, materials regularly processed by the Company, have
characteristics considered to be health or safety hazards by various federal,
state and local regulatory agencies. The processing of these
 
                                       14
<PAGE>
materials requires a high level of safety consciousness, personnel monitoring
devices and special equipment. DU in a finely divided state, such as grinding
dust or machine turnings, is combustible at room temperature and requires
special handling for safe operations and disposal of process wastes. Airborne
beryllium in respirable form, such as powder, dusts or mists generated in some
manufacturing processes can represent a hazard to the lungs in certain
susceptible individuals. Processing this material requires use of extensive
ventilation and dust collecting systems. All of these operations are performed
under strict environmental and health safety controls consistent with the
Occupational Safety and Health Administration ("OSHA") and the Environmental
Protection Agency ("EPA") regulations for pure beryllium. There can be no
assurance that the Company will be able to control all health and safety
problems. The Company may be held liable and may be required to pay the costs of
remedying any such problems. The amount of any such liability and costs could be
material. See "Business--Environmental, Safety and Regulatory Matters."
 
DEPENDENCE ON SALES TO PUBLIC SECTOR AND GOVERNMENT CONTRACTORS
 
    The Company derives, and plans to continue to derive, substantial revenues
from public sector customers or contractors for such customers, including the
United States military. There are significant risks inherent in sales to such
customers which may cause material fluctuations in the Company's operating
results. For each contract with a public sector customer, the Company typically
is subject to a protracted procurement process which includes sealed competitive
bids, systems demonstrations and the integration of Company and third-party
products. The process also can include political influences, award protests
initiated by unsuccessful bidders and changes in budgets or appropriations which
are beyond the Company's control. Contracts of public sector customers typically
are subject to procurement policies which may be onerous and may include profit
limitations and rights on the part of the government to terminate for
convenience. Sales to the United States Department of Defense (the "DOD") are
subject to a number of significant uncertainties, including timing and
availability of funding, unforeseen changes in the timing and quantity of
government orders and the competitive nature of government contracting
generally. Furthermore, the DOD has been reducing total expenditures, and there
can be no assurance that funding will not be reduced in the future. A
significant loss of sales to the U.S. government or contractors for the U.S.
government could have a material adverse effect on the Company's business,
results of operation and financial condition.
 
    The Company is directly and indirectly subject to various rules, regulations
and orders applicable to government contractors. Violation of applicable
government rules and regulations could result in civil liability, in
cancellation or suspension of existing contracts or in ineligibility for future
contracts or subcontracts funded in whole or in part with federal funds.
Similarly, changes in the regulations or other requirements relating to parts
manufactured by the Company could materially adversely affect the Company.
 
CONCENTRATION OF CUSTOMERS
 
   
    A substantial portion of the Company's business currently is conducted with
a relatively small number of large customers. The Company's ten largest
customers accounted for approximately 78% and 83% of the Company's net sales in
the fiscal years ended September 30, 1997 and September 30, 1996, respectively,
and three of which individually accounted for greater than 10% of the Company's
consolidated revenues in fiscal 1997 and 1996. While the Company's planned
expansion into new commercial markets may result in a substantial portion of its
revenues being derived from new customers, the dominance of a few companies in
certain of these targeted markets is likely to continue to result in a
substantial portion of the Company's revenues being derived from a small number
of significant customers. The loss of one of its key customers or any
significant portion of orders from any such customers could have a material
adverse effect on the Company's business, results of operation and financial
condition. In addition, the Company also could be materially adversely affected
by any substantial work stoppage or interruption of production at any of its
    
 
                                       15
<PAGE>
   
major customers or if one or more of its key customers were to reduce or cease
conducting operations. See "Business--Significant Customers" and Note 1 to
Consolidated Financial Statements.
    
 
UNCERTAINTIES RELATING TO USEC AND UF(6) CONVERSION
 
    USEC, a government-owned global energy company created by the U.S. Congress
in 1992 to operate the DoE's uranium enrichment program, is the only customer
for the Company's AVLIS feedstock material. USEC is in the process of
privatizing, and the Company is unable to predict the impact of the
privatization process and resulting change of ownership on the Company's
business. There can be no assurance that USEC, or any successor to USEC as a
result of privatization or otherwise, will not abandon the AVLIS program or
reduce resources directed to the program or that the Company will continue to
receive contracts from USEC. In addition, USEC's privatization process may delay
the awarding of contracts to the Company. There can be no assurance that USEC,
or any successor to as a result of privatization or otherwise, will provide the
Company with business which is sufficient to sustain the profitability of the
Company's South Carolina facility. Failure of the Company to be awarded such
contracts could have a material adverse effect on the Company's business,
results of operation and financial condition. Furthermore, following
privatization, USEC will own all the new depleted UF(6) produced by its
enrichment plants and will not be allowed to store depleted UF(6) as has been
done by DoE, thereby necessitating that USEC develop a method for disposing of
depleted UF(6). The Company also intends to pursue opportunities with DoE for
the conversion of its depleted UF(6) stockpile. Although the Company owns and
operates the only production facility in North America capable of converting
natural UF(6) and depleted UF(6) into UF(4), there can be no assurance that USEC
or DoE will award contracts to the Company for the conversion of depleted UF(6).
See "Business--Industries and Markets--AVLIS and UF(6) Conversion."
 
DEPENDENCE ON KEY PERSONNEL
 
    The Company's performance depends to a significant extent upon a number of
senior management and technical personnel. The loss of the services of one or
more key employees could have a material adverse effect on the Company. The
Company does not maintain key person life insurance on any of its employees. The
Company's future financial results will depend in large part on its ability to
continue to attract and retain highly skilled, technical, managerial and
marketing personnel and the ability of its officers and key employees to manage
growth successfully, to implement appropriate management information systems and
controls, and to continue successful development of new products and services
and enhancements to existing products and services. Competition for such
personnel is intense and there can be no assurance that the Company will
continue to be successful in attracting and retaining the personnel required to
successfully develop new and enhanced products.
 
RISK OF BUSINESS INTERRUPTION
 
    The Company's specialty metal products (including Beralcast) business is
concentrated at its Concord facility and its advanced recycling technologies and
uranium services business is concentrated at its South Carolina facility. Any
prolonged disruption at any of the Company's production facilities due to
equipment failure, destruction of or material damage to such facility, labor
difficulties, or other reasons, could have a material adverse effect on the
Company's business, results of operations and financial condition. Although the
Company maintains property and business interruption insurance to protect
against any such disruptions (other than for labor-related disruptions), there
can be no assurance that the proceeds from such insurance would be adequate to
compensate the Company for losses, including the loss of customers, incurred
during the period of any such disruption or thereafter.
 
                                       16
<PAGE>
YEAR 2000 COMPLIANCE
 
   
    The Company has implemented a Year 2000 compliance program designed to
ensure that the Company's computer systems and applications will function
properly beyond 1999. The Company believes that adequate resources have been
allocated for this purpose and expects the Company's Year 2000 date conversion
programs to be completed on a timely basis. The Company does not expect to incur
significant expenditures to address this issue. However, there can be no
assurance that the Company will identify all Year 2000 problems in its computer
and other systems in advance of their occurrence or that the Company will be
able to successfully remedy any problems that are discovered. The expenses of
the Company's efforts to address such problems, or the expenses or liabilities
to which the Company may become subject as a result of such problems, could have
a material adverse effect on the Company's business, results of operations and
financial condition. In addition, the revenue stream and financial stability of
existing customers may be adversely impacted by Year 2000 problems, which could
cause fluctuations in the Company's revenues and operating profitability. In
addition, if any of the Company's significant customers or suppliers do not
successfully and timely achieve Year 2000 compliance, the Company's business
could be materially affected.
    
 
FLUCTUATION OF STOCK PRICE; ABSENCE OF ACTIVE TRADING
 
    In recent periods there has been relatively little trading in the Company's
Common Stock and the market price per share of the Company's Common Stock has
fluctuated significantly. Although both the number of shares of the Common Stock
outstanding in the public float and the number of the Company's stockholders are
expected to increase significantly following the offering, there can be no
assurance that a more active trading market for the Common Stock will develop or
be sustained following the offering. Factors such as quarterly variations in the
Company's result of operations, changes in the Company's industry and market
conditions generally, the presence of a limited number of market makers for the
Company's Common Stock, the lack of availability of institutional market
research concerning the Company, and the limited and sporadic trading volume of
the Company's Common Stock have caused and may continue to cause the market
price of the Company's Common Stock to fluctuate significantly. In addition,
future announcements concerning the Company or its competitors, including
quarterly results, innovations, new product introductions, government
regulations or proceedings, or litigation may cause the market price of the
Common Stock to fluctuate significantly. Furthermore, the stock markets have
experienced extreme price and volume fluctuations during certain periods. These
broad market fluctuations and other factors may adversely affect the market
price of the Company's Common Stock for reasons unrelated to the Company's
operating performance. Accordingly, the price at which shares are offered hereby
should not be considered an indication of any price at which the Common Stock
may trade in the future.
 
EFFECTS OF MASSACHUSETTS CONTROL SHARE ACQUISITION ACT
 
    The Company is subject to Chapter 110D of the Massachusetts General Laws
which governs "control share acquisitions," which are certain acquisitions of
beneficial ownership of shares which raise the voting power of the acquiring
person (which can be a group of persons or entities sharing beneficial
ownership) above any one of three thresholds: one-fifth, one-third or one-half
of the total voting power. Each time one of these thresholds is crossed, all
shares acquired by the person making the control share acquisition within the
period beginning 90 days before and ending 90 days after such threshold is
crossed ("Affected Shares") obtain voting rights only (i) upon authorization by
a majority of the stockholders other than the holder of the Affected Shares,
officers of the Company and directors of the Company who also are employees of
the Company or (ii) when disposed of in non-control share acquisitions. Chapter
110D may have the effect of delaying or preventing a change of control of the
Company at a premium price. In addition, because the number of shares of Common
Stock currently entitled to vote is substantially less than the total number of
outstanding shares of Common Stock, holders of shares of Common Stock purchased
in transactions which
 
                                       17
<PAGE>
are not control share acquisitions, and which occur at a time when there are
Affected Shares outstanding, will obtain voting rights which are
disproportionate to the number of shares held as a percentage of all outstanding
shares (including Affected Shares), which may facilitate the acquisition of
shareholdings which may permit the exercise of a controlling influence on the
management or policies of the Company. See "-- Substantial Influence of
Principal Stockholders" and "Description of Capital Stock."
 
SUBSTANTIAL INFLUENCE OF PRINCIPAL STOCKHOLDERS
 
   
    The Company believes that certain control share acquisitions have occurred
and that members of the group which effected such control share acquisitions,
namely Wiaf Investors Co., Charles Alpert, Joseph Alpert, Melvin B. Chrein,
Meryl J. Chrein and Marshall J. Chrein (collectively, the "Investor Group"), as
of May 21, 1998 were the beneficial owners of 2,495,537 shares of Common Stock
(assuming full conversion of debentures and exercise of all warrants held by
certain members of the Investor Group), or approximately 50% of the Company's
outstanding shares of Common Stock. Of these shares, 1,759,255 are Affected
Shares (and thus not entitled to vote). The remaining 736,282 shares (assuming
full conversion of debentures and exercise of all warrants held by certain
members of the Investor Group) represent approximately 23% of the shares
entitled to vote. Directors and executive officers of the Company beneficially
own in the aggregate 1,012,918 shares of Common Stock (assuming full conversion
of debentures and exercise of all currently exercisable options and warrants
held by certain directors and executive officers), or approximately 31% of the
shares entitled to vote. The shares to be sold in the offering by members of the
Investor Group who are Selling Stockholders will become voting shares upon the
closing of the offering. Following the closing of the offering, the Investor
Group will beneficially own in the aggregate 2,045,537 shares of Common Stock
(assuming full conversion of debentures and exercise of all warrants held by
certain members of the Investor Group), or approximately 28% of the shares of
Common Stock (assuming no exercise of the Underwriters' over-allotment option).
Of the shares to be beneficially owned by the Investor Group, not more than
646,282 shares (assuming full conversion of convertible debentures and exercise
of all warrants held by certain members of the Investor Group) will be entitled
to vote, or approximately 11% of the shares entitled to vote (assuming no
exercise of the Underwriters' over-allotment option). Following the closing of
the offering, directors and executive officers of the Company, in the aggregate,
will beneficially own 717,918 of the outstanding shares of Common Stock
(assuming full conversion of debentures and exercise of all currently
exercisable options and warrants held by certain directors and executive
officers), or approximately 12% of the shares entitled to vote (assuming no
exercise of the Underwriters' over-allotment option). As a result, the Investor
Group and/or the Company's directors and executive officers could have
substantial influence on matters requiring approval of stockholders of the
Company, including the election of directors or the approval of significant
corporate matters. This concentration of ownership by existing stockholders may
also have the effect of delaying or preventing a change of control of the
Company. See "Principal and Selling Stockholders."
    
 
SHARES AVAILABLE FOR FUTURE SALE
 
   
    Upon the completion of the offering, the Company will have 7,040,674 shares
of Common Stock outstanding (7,490,674 if the Underwriters' over-allotment
option is exercised in full). Of these shares, approximately 4,607,948 shares
(including the 3,000,000 shares to be sold in the offering, assuming no exercise
of the Underwriters' over-allotment option) will be freely tradeable, without
restriction or further registration under the Securities Act of 1933, as amended
(the "Securities Act"), except for shares purchased by "affiliates" of the
Company, as that term is defined in Rule 144 under the Securities Act, or
persons who have been affiliates within the preceding three months. The
remaining outstanding shares are owned by existing stockholders and are
currently deemed "restricted securities" under Rule 144. In connection with the
offering, the Company, and certain stockholders, including directors and
officers of the Company, holding in the aggregate 2,763,455 shares of Common
Stock (includes currently exercisable options and warrants and shares issuable
upon conversion of outstanding convertible debentures) after
    
 
                                       18
<PAGE>
   
giving effect to the offering, are expected to enter into lock-up agreements
providing that for a period of 180 days from the date of this Prospectus, the
Company and each such stockholder will not, directly or indirectly, without the
prior written consent of Bear, Stearns & Co. Inc., issue, sell, offer or agree
to sell, grant any option to purchase or otherwise transfer or dispose of any
Common Stock or any securities substantially similar to the Common Stock. In
addition, as of May 21, 1998, 721,420 shares of Common Stock have been reserved
for issuance upon the exercise of stock options outstanding or which may be
granted under the Company's stock option plans. Furthermore, the Company has
reserved 126,044 shares of Common Stock for issuance upon conversion of the
Company's convertible subordinated debentures and 182,790 shares (205,923 shares
after the completion of offering, giving effect to anti-dilution provisions in
the First Warrant held by the Company's principal bank lender and assuming no
exercise of the Underwriters' over-allotment option) of Common Stock for
issuance upon exercise of outstanding and immediately exercisable warrants, all
of which will be deemed "restricted securities" under Rule 144 upon issuance. It
is possible that some or all of these shares issued or which could be issued
could be available for future sales. Sales of substantial amounts of shares of
Common Stock in the public market, or the perception that such sales may occur,
could adversely affect the market price of the Common Stock. See "Use of
Proceeds," "Shares Eligible for Future Sale" and "Underwriting."
    
 
ABSENCE OF DIVIDENDS
 
    The Company has not recently declared or paid cash dividends on its Common
Stock and intends to retain all available funds for use in the operation and
expansion of its business. The Company therefore does not anticipate that any
cash dividends will be declared or paid in the foreseeable future. Any future
decisions as to the payment of dividends will be at the discretion of the
Company's Board of Directors, subject to applicable law and any restrictions
contained in any bank loan or other debt agreements to which the Company may be
subject from time to time. See "Dividend Policy."
 
                                       19
<PAGE>
                                  THE COMPANY
 
    The Company originated in 1942 at MIT as the metallurgical component of the
Manhattan Project. In the late 1940s, the Company separated from MIT while
remaining located on campus and operated as an independent business corporation
known as Nuclear Metals, Inc. Work commenced during this period with zirconium
and its alloys led to the development of a process, subsequently patented by the
Company, for the production of metal powders. In 1958, the Company was acquired
by Arthur D. Little, and was moved to its present headquarters in Concord,
Massachusetts. After a period of operation as a division of Textron, the
business of the Company was acquired by Whittaker Corporation and, in 1972, was
sold by Whittaker Corporation to a newly-organized company led by George
Matthews and Wilson Tuffin, who continue to serve the Company as Chairman and
Vice-Chairman of its Board of Directors, respectively.
 
   
    In the 1970s and 1980s, a substantial portion of the Company's business
involved the supply of metal powders to Xerox Corporation for use in
photocopiers. During this period, the Company also developed expertise in the
production of beryllium alloys, including powder metallurgy and investment
casting, which eventually led to the development of the Company's family of
Beralcast alloys and techniques for investment casting beryllium alloy products.
In the late 1970s, the Company experienced a sharp decline in the sale of
powders to Xerox due to technological and market changes which largely obviated
the need for the Company's powders for these applications. As a result, the
Company shifted its focus to military applications for its metallurgical
expertise and began producing DU penetrators and billets for conversion into
tank armor, successfully moving into the defense contracting business. In the
late 1980s and the 1990s, the decline in U.S. defense spending resulted in
sharply reduced revenues from the sale of the Company's defense-related DU
products. The expectation that U.S. defense spending will continue at or below
current levels has also resulted in the writedown of the Company's equipment and
inventory related to its DU penetrators and tank armor businesses. See Note 5 to
Consolidated Financial Statements.
    
 
    On October 1, 1997, the Company changed its name from "Nuclear Metals, Inc."
to "Starmet Corporation" and reorganized itself into a parent corporation with
the following five principal wholly-owned subsidiaries: Starmet NMI Corporation;
Starmet Powders, LLC; Starmet Commercial Castings, LLC; Starmet Aerocast, LLC;
and Starmet CMI Corporation (formerly known as Carolina Metals Inc.). This
reorganization was designed to allow management of the Company's operating
subsidiaries to assume substantial responsibility for day-to-day operations, new
business development, marketing and ultimately profitability. The Company's
management believes that the reorganization will result in concentration of
technical and human resources along functional business lines, which will allow
the Company, through its operating subsidiaries, to develop specialized
operational and marketing expertise, and to pursue selected teaming
arrangements, licenses, joint ventures and other cooperative relationships. On
October 1, 1997, the Company changed its Nasdaq National Market trading symbol
to "STMT."
 
    The Company's principal executive offices are located at 2229 Main Street,
Concord, Massachusetts 01742, and the Company's telephone number is (978)
369-5410.
 
                                       20
<PAGE>
                                USE OF PROCEEDS
 
   
    The net proceeds to the Company from the sale of the 2,250,000 shares of
Common Stock offered by the Company are estimated to be approximately
$60,006,000, based on an assumed offering price of $29.25 per share, and after
deduction of underwriting discounts and commissions and estimated offering
expenses payable by the Company. The Company will not receive any proceeds from
the sale of shares by the Selling Stockholders.
    
 
   
    The Company has embarked upon a multi-year capital expenditure program under
which it plans to invest a substantial portion of the net proceeds of the
offering to expand its commercial Beralcast manufacturing capabilities through
fixed asset additions including the purchase of production equipment and
facility upgrades. The Company anticipates spending up to approximately $90
million over the next four years, subject to various factors, to increase the
capacity at the Company's facilities. Of this amount, the Company expects to
spend approximately $60 million on the expansion of its Beralcast business. The
Company intends to fund such capital expenditures with the proceeds of the
offering, the Proposed Credit Facility and cash expected to be generated from
operations. Under current plans, the Company intends to make capital
expenditures of approximately $30 million of the net proceeds of the offering
during the eighteen months following the closing of the offering. See
"Business--Manufacturing and Operations."
    
 
   
    The Company intends to use a portion of the net proceeds of the offering to
repay all amounts outstanding under the Existing Credit Facility. As of May 14,
1998, borrowings of approximately $5.1 million were outstanding under the
Existing Credit Facility (excluding approximately $3.6 million in letters of
credit outstanding thereunder). Borrowings under the Existing Credit Facililty
bear interest, payable monthly in arrears, at a rate equal to the lender's prime
rate plus one-half percent. Under the terms of the Existing Credit Facility,
$1.5 million is due July 1, 1998, $1.5 million is due October 1, 1998 and the
balance is due February 28, 1999.
    
 
   
    The Company has outstanding in the aggregate $2,250,500 in principal amount
under debt instruments to certain of its principal stockholders, consisting of
the following: $500,500 in principal amount of its 10% Convertible Subordinated
Debentures due December 10, 1998, which are convertible at any time into Common
Stock at $5.945 per share; $350,000 in principal amount of its 10% Subordinated
Debentures due December 10, 1998, with three-year warrants to purchase 42,000
shares of Common Stock at an exercise price of $7.50 per share; $500,000 in
principal amount of its 10% Subordinated Debentures due December 10, 2000, with
three-year warrants to purchase 60,000 shares of Common Stock at an exercise
price of $17.875 per share; and $900,000 in principal amount of its 10%
Convertible Subordinated Debentures due December 31, 1999, the principal amount
of which is convertible at any time into Common Stock at $21.50 per share. The
Company intends to use approximately $850,000 of the offering proceeds to repay
all of the 10% Subordinated Debentures. The Company intends to offer to repay
all of the 10% Convertible Subordinated Debentures but expects that the holders
thereof will convert such debentures into shares of Common Stock instead of
accepting repayment. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations -- Liquidity and Capital Resources."
    
 
   
    The amounts and timing of actual capital and other expenditures will depend
upon numerous factors, including the timing and size of orders, the progress of
the Company's research and development programs, product marketing strategies,
cooperative business relationships, the competitive environment and the timing
of implementation of the Company's capital expansion plans. The Company intends
to utilize the remainder of the net proceeds of the offering for general
corporate purposes, including working capital requirements, additional capital
expenditures and in support of its general business expansion efforts. Pending
these uses, the net proceeds from the offering will be invested in short-term,
investment grade securities.
    
 
                                       21
<PAGE>
                                DIVIDEND POLICY
 
   
    The Company anticipates that, for the foreseeable future, all earnings will
be retained to support operations and finance expansion. The Company has not
paid cash dividends in recent years, and does not intend to pay cash dividends
on the Common Stock for the foreseeable future. The Company's ability to pay
cash dividends is limited by its dependence upon the receipt of cash from its
subsidiaries to make such dividend payments. The Company's Existing Credit
Facility contains financial covenants and other restrictions that prohibit or
restrict the payment of dividends and intercompany loans among Starmet and its
subsidiaries and by the Company to its stockholders. Upon completion of the
offering, the Company expects to enter into the Proposed Credit Facility (as
defined herein) which it anticipates will not so prohibit or restrict dividends.
See "Risk Factors--Absence of Dividends" and "Management's Discussion and
Analysis of Financial Condition and Results of Operations--Liquidity and Capital
Resources."
    
 
                          PRICE RANGE OF COMMON STOCK
 
   
    The Company's Common Stock is traded on the Nasdaq National Market under the
symbol STMT. As reported by the Nasdaq National Market, the high and low bid
prices for the two years ended September 30, 1996 and 1997, the first two
quarters of fiscal 1998 and the third quarter of fiscal 1998 (through May 21,
1998) are reflected in the following table. This information reflects
inter-dealer prices, without retail mark-up, mark-down or commissions and may
not represent actual transactions.
    
 
   
<TABLE>
<CAPTION>
                                                                                                   HIGH        LOW
                                                                                                 ---------  ---------
<S>                                                                                              <C>        <C>
Fiscal 1996:
  1st Quarter..................................................................................  $    7.00  $    5.25
  2nd Quarter..................................................................................      10.50       5.50
  3rd Quarter..................................................................................       9.25       6.75
  4th Quarter..................................................................................       9.38       6.00
Fiscal 1997:
  1st Quarter..................................................................................      10.75       7.25
  2nd Quarter..................................................................................      17.63       9.00
  3rd Quarter..................................................................................      18.50      14.00
  4th Quarter..................................................................................      19.00      14.50
Fiscal 1998:
  1st Quarter..................................................................................      31.00      14.25
  2nd Quarter..................................................................................      36.00      21.50
  3rd Quarter (through May 21, 1998)...........................................................      38.00      29.00
</TABLE>
    
 
    The stock prices listed above for fiscal 1996 and the first three quarters
of fiscal 1997 have been adjusted to reflect the Company's two-for-one stock
dividend paid on April 7, 1997.
 
   
    On May 21, 1998 the last reported sale price for the Company's Common Stock
on the Nasdaq National Market was $29.25 per share. As of May 21, 1998, there
were approximately 300 holders of record of the Company's Common Stock. The
Company believes the actual number of beneficial owners of the Company's Common
Stock is greater because a large number of shares are held in custodial or
nominee accounts.
    
 
                                       22
<PAGE>
                                 CAPITALIZATION
 
                             (DOLLARS IN THOUSANDS)
 
   
    The following table sets forth the capitalization of the Company as of March
31, 1998 and as adjusted to reflect the sale of 2,250,000 shares of Common Stock
offered by the Company hereby, at an assumed public offering price of $29.25 per
share and after deducting estimated underwriting discounts and commissions and
estimated offering expenses payable by the Company, the application of the net
proceeds therefrom and the further adjustments described below. See "Use of
Proceeds." This table should be read in conjunction with the Consolidated
Financial Statements included elsewhere in this Prospectus.
    
 
   
<TABLE>
<CAPTION>
                                                                                          AS OF MARCH 31, 1998
                                                                                        -------------------------
                                                                                         ACTUAL    AS ADJUSTED(1)
                                                                                        ---------  --------------
<S>                                                                                     <C>        <C>
Short-term borrowings:
    Bank credit facility, net of unamortized discount of $255.........................  $   4,859    $   --
    Current portion of notes payable to stockholders and other long-term debt.........      1,029           179
                                                                                        ---------  --------------
        Total short-term borrowings...................................................      5,888           179
                                                                                        ---------  --------------
                                                                                        ---------  --------------
Long-term debt:
    Notes payable to stockholders, net of unamortized discount of $235................  $   1,165    $   --
    Other long-term obligations.......................................................        336           336
                                                                                        ---------  --------------
        Total long-term debt..........................................................      1,501           336
                                                                                        ---------  --------------
Stockholders' equity:
Common Stock, $0.10 par value, 15,000,000 shares authorized, 4,790,274 shares issued
  and outstanding (7,166,318 shares outstanding as adjusted)(1)(2)....................        479           717
    Additional paid-in capital........................................................     14,055        75,224
    Warrants issued...................................................................        687           687
    Retained earnings.................................................................      9,937         9,212
                                                                                        ---------  --------------
        Total stockholders' equity....................................................     25,158        85,840
                                                                                        ---------  --------------
        Total capitalization..........................................................  $  26,659        86,176
                                                                                        ---------  --------------
                                                                                        ---------  --------------
</TABLE>
    
 
- ------------------------
 
   
(1) Adjusted to reflect (i) the sale by the Company of Common Stock in the
    offering, (ii) the application of the proceeds therefrom, (iii) an
    extraordinary loss of $725 associated with early extinguishment of
    indebtedness, (iv) the anticipated payment by the Company of a fee of
    approximately $235 under the Facility Restructuring Agreement to eliminate
    certain anti-dilution provisions of warrants held by the Company's principal
    bank lender and (v) the assumed conversion of approximately $1,400 in
    principal amount of outstanding and immediately convertible subordinated
    debentures held by certain stockholders. See "Use of Proceeds" and
    "Management's Discussion and Analysis of Financial Conditions and Results of
    Operations--Liquidity and Capital Resources."
    
 
   
(2) Based on shares of Common Stock outstanding as of March 31, 1998. Does not
    include (i) an aggregate of 721,420 shares of Common Stock reserved for
    issuance upon the exercise of outstanding options or that may be granted
    under the Company's stock option plans (of which, options to purchase
    594,920 shares were outstanding as of March 31, 1998) and (ii) 182,790 of
    Common Stock reserved for issuance upon exercise of outstanding and
    immediately exercisable warrants (not giving effect to anti-dilution
    provisions in the First Warrant held by the Company's principal bank lender
    that will be triggered as a result of the offering). See "Management's
    Discussion and Analysis of Financial Conditions and Results of
    Operations--Liquidity and Capital Resources" and "Shares Eligible for Future
    Sale."
    
 
                                       23
<PAGE>
                            SELECTED FINANCIAL DATA
 
              (DOLLARS IN THOUSANDS EXCEPT PER SHARE INFORMATION)
 
   
    The selected statement of operations and other data set forth below for each
of the years ended September 30, 1995, 1996 and 1997 have been derived from the
Company's Consolidated Financial Statements included elsewhere herein and should
be read in conjunction with such financial statements. The selected statement of
operations and other data set forth below for each of the years ended September
30, 1993 and 1994 have been derived from audited financial statements of the
Company that are not included herein. The selected statement of operations and
other data for the six month periods ended March 31, 1997 and 1998 and the
selected balance sheet data as of March 31, 1998 have been derived from the
unaudited financial statements of the Company included elsewhere herein and, in
the opinion of management, include all adjustments, consisting only of normal
recurring adjustments, necessary for a fair presentation of the results of
operations and financial position of the Company for the period and at the date
presented. The selected statement of operations and other data set forth below
should be read in conjunction with the Consolidated Financial Statements and
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations" included elsewhere herein. The results of the Company's operations
for the six months ended March 31, 1998 are not necessarily indicative of
results to be expected for any future period or fiscal 1998.
    
 
   
<TABLE>
<CAPTION>
                                                                                                              SIX MONTHS
                                                            FISCAL YEAR ENDING SEPTEMBER 30,               ENDED MARCH 31,
                                                  -----------------------------------------------------  --------------------
                                                    1993       1994       1995       1996       1997       1997       1998
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                                                                             (UNAUDITED)
<S>                                               <C>        <C>        <C>        <C>        <C>        <C>        <C>
STATEMENT OF OPERATIONS DATA:
  Net sales and contract revenues...............  $  17,019  $  19,004  $  18,784  $  28,694  $  28,062  $  12,613  $  18,769
  Cost of sales.................................     19,861     21,590     15,452     25,053     19,136      7,902     14,526
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Gross profit..................................     (2,842)    (2,586)     3,332      3,641      8,926      4,711      4,243
  Selling, general & administration.............      6,623      4,209      4,817      5,325      5,448      3,273      4,475
  Research and development                            1,031        575        439        876      1,309        699        567
  Loss on fixed asset writedown.................         --      3,584         --         --        358         --         --
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Operating income (loss).......................    (10,496)   (10,954)    (1,924)    (2,560)     1,811        739       (799)
  Interest and other income (expense), net              396        120        232        (89)        (2)        11         --
  Interest expense, net.........................        953        550        350        387        296        119        489
  Income (loss) before taxes & extraordinary
    item........................................    (11,053)   (11,384)    (2,042)    (3,036)     1,513        631     (1,288)
  Income tax provision (benefit)................     (3,746)    (1,188)    (1,967)         1         31         13         --
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Net income (loss) (1)(2)......................  $  (6,207) $ (10,196) $     510  $  (3,037) $   1,482  $     618  $  (1,288)
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
                                                  ---------  ---------  ---------  ---------  ---------  ---------  ---------
  Basic net income (loss) per share (3)(4)......  $   (1.35) $   (2.22) $    0.11  $   (0.64) $    0.31  $    0.13  $   (0.27)
  Basic weighted average shares outstanding
    (3)(4)......................................      4,590      4,600      4,701      4,779      4,783      4,782      4,787
  Diluted net income (loss) per share (3)(4)....  $   (1.35) $   (2.22) $    0.11  $   (0.64) $    0.30  $    0.13  $   (0.27)
  Diluted weighted average shares outstanding
    (3)(4)......................................      4,590      4,600      4,706      4,779      4,959      4,928      4,787
OTHER DATA:
  Research & development expense................      1,031        575        439        876      1,309        699        567
  Customer funded research and development
    (5).........................................        503        792        557      1,812        793        111        291
  Capital expenditures..........................      1,265        709        777      1,449      1,788        785      2,349
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                                                            AS OF
                                                            AS OF SEPTEMBER 30,                         MARCH 31, 1998
                                           -----------------------------------------------------  --------------------------
                                             1993       1994       1995       1996       1997      ACTUAL    AS ADJUSTED (6)
                                           ---------  ---------  ---------  ---------  ---------  ---------  ---------------
                                                                                                         (UNAUDITED)
<S>                                        <C>        <C>        <C>        <C>        <C>        <C>        <C>
BALANCE SHEET DATA:
  Working capital........................  $  24,532  $  17,477  $  16,866  $   9,249  $  10,743  $   7,928     $  67,444
  Total assets...........................     57,223     40,542     40,886     35,118     34,704     38,540        92,348
  Total liabilities......................     20,852     14,290     13,641     10,748      8,608     13,382         6,508
  Stockholders' equity...................     36,371     26,252     27,245     24,370     26,096     25,158        85,840
</TABLE>
    
 
- ------------------------
   
(1) Net loss for fiscal 1993 has been reduced by income of $1,100 related to the
    cumulative effect of a change in accounting principle.
    
   
(2) Net income for fiscal 1995 includes an extraordinary gain of $585 on the
    extinguishment of debt, net of taxes of $10.
    
   
(3) Adjusted to reflect the two-for-one stock dividend issued on April 7, 1997.
    
   
(4) Effective December 15, 1997, the Company adopted Statement of Financial
    Accounting Standards ("SFAS") No. 128, EARNINGS PER SHARE. Basic net income
    (loss) per share was computed by dividing net income (loss) by the weighted
    average shares outstanding. Diluted net income per share was computed by
    dividing net income (loss) by the weighted average number of shares and
    dilutive potential shares outstanding during the relevant period. In loss
    periods, dilutive potential shares are excluded as they would be
    anti-dilutive.
    
   
(5) Such amounts are included in net sales and contract revenues.
    
   
(6) Adjusted to give effect to (i) the sale of 2,250,000 shares of Common Stock
    by the Company at an assumed price of $29.25 per share after deducting
    underwriting discounts and estimated expenses of $1,200 and the application
    of the estimated net proceeds therefrom, (ii) an extraordinary loss of $725
    associated with early extinguishment of indebtedness, (iii) the anticipated
    payment by the Company of a fee of approximately $235 under the Facility
    Restructuring Agreement to eliminate certain anti-dilution provisions of
    warrants held by its principal bank lender and (iv) the assumed conversion
    of approximately $1,400 in principal amount of outstanding and immediately
    convertible subordinated debentures held by certain stockholders. See "Use
    of Proceeds" and "Managements' Discussion and Analysis of Financial
    Condition and Results of Operations--Liquidity and Capital Resources."
    
 
                                       24
<PAGE>
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
    THE FOLLOWING DISCUSSION AND ANALYSIS OF THE COMPANY'S FINANCIAL CONDITION
AND RESULTS OF OPERATIONS SHOULD BE READ IN CONJUNCTION WITH "SELECTED FINANCIAL
DATA" AND THE CONSOLIDATED FINANCIAL STATEMENTS INCLUDED ELSEWHERE IN THIS
PROSPECTUS.
 
GENERAL
 
    The following discussion and analysis of the Company's financial condition
and results of operations is based on the three business segments in which the
Company currently reports its results, namely Specialty Metal Products, Depleted
Uranium Penetrators and Uranium Services and Recycle. The Specialty Metal
Products segment consists of the manufacture of the Company's Beralcast alloys,
specialty metal powders, billets for tank armor, and industrial and medical
shielding products. The Depleted Uranium Penetrators segment consists of the
manufacture of DU penetrators for military munitions applications. The Uranium
Services and Recycle segment consists of the manufacture of DU and NU metal for
use as uranium feedstock supplied to USEC's AVLIS program, conversion of UF(6)
to UF(4), recycling of various low-level radioactive metals, DUCRETE shielding
capabilities and repair of counterweights for commercial and military aircraft.
 
    In the late 1980s and the 1990s, the decline in U.S. defense spending
resulted in sharply reduced revenues from the sale of the Company's
defense-related depleted uranium products, including DU penetrators and billets
for conversion into tank armor. The Company expects that no revenue will be
derived from sales of DU penetrators after the second quarter of fiscal 1999 and
that only limited revenue will be derived from sales of billets for conversion
into tank armor thereafter. As revenues from defense-related DU products decline
overall and as a percentage of revenues, the Company may provide information on
two business segments in future periods. In order to facilitate an understanding
of the Company's business as currently anticipated to be conducted in future
periods, the discussion of the Company's business elsewhere in this Prospectus
combines the Company's Uranium Services and Recycle and Depleted Uranium
Penetrators segments under the designation Advanced Recycling Technologies and
Uranium Services. See "--Segment Information."
 
    A central aspect of the Company's strategy is to concentrate its efforts and
resources on commercial applications for its technology. In particular, the
Company intends to focus on the commercialization of its family of Beralcast
alloys. To date, the Company's Beralcast business has received most of its
orders and funding from military aerospace applications. In particular, the
Company has received contracts from Lockheed Martin for Beralcast components to
be used in its Electro Optic Sensor System ("EOSS"), the night vision and target
acquisition system on the Comanche helicopter, which is scheduled for full-scale
production commencing in 2003. The Company is applying its Beralcast technology
to develop, among other things, disk drive arm sets for high-end disk drives as
well as for satellite components, premium golf products and other products.
These products currently are in the development and, for certain customers, the
pre-production stages. The Company believes that as a result of the general
practice of manufacturers in the disk drive industry and other targeted
commercial industries of placing only short-term orders, the Company could
experience substantial fluctuations in revenues and earnings from quarter to
quarter. The Company is also developing additional commercial applications for
its Beralcast alloys. See "Risk Factors--Risks Related to New Product
Introductions, Rapid Technological Change and Industry Conditions."
 
    In the third quarter of fiscal 1996, the Company reduced its workforce at
its South Carolina facility due to the completion of a contract for a foreign
customer and lack of anticipated new orders. During most of fiscal 1996, the
Company operated this facility at approximately 40% of capacity on a one-shift
basis. In the fourth quarter of fiscal 1996, the Company took a $2,100,000
reserve for estimated fiscal 1997 losses associated with then current production
contracts, which reserve was fully utilized during fiscal 1997.
 
                                       25
<PAGE>
   
Losses at the facility continued through the first quarter of fiscal 1998 due to
underutilization. At the same time, the Company increased its workforce in
preparation for the receipt of an AVLIS production contract. USEC recently
exercised production options under its existing AVLIS contract with the Company,
and the Company anticipates receiving additional contractual work from USEC in
the summer of 1998. The Company's operations in South Carolina are currently
substantially dependent on orders from USEC and are expected to remain so.
Failure of the Company to be awarded such contracts could have a material
adverse effect on the Company's business, results of operations and financial
condition. See "Risk Factors--Uncertainties Relating to USEC and UF(6)
Conversion."
    
 
   
    Due primarily to the sharp decline in sales of DU penetrators and lack of
orders in its uranium services and recycle business, the Company incurred losses
in three of its last four previous fiscal years and in the first six months of
fiscal 1998. The Company's accountants, in their report to the Board of
Directors and stockholders of the Company on the Company's financial statements
for fiscal 1995, stated that there was substantial doubt at that time about the
Company's ability to continue as a going concern. Although the Company was
profitable in fiscal 1997, reserve reductions and other non-recurring income
items accounted for the profitability. Excluding these items, the Company would
have reported a net loss in fiscal 1997. See "Risk Factors--History of Losses;
Risk of Future Losses" and "--Results of Operations." As a result, the Company
has experienced significant financial difficulties and liquidity problems in
recent years and has had to seek financing from stockholders, waivers of
non-compliance with certain covenants in its debt instruments (including waivers
under the Existing Credit Facility in February and May of 1998), additional
borrowings under the Existing Credit Facility, and additional equipment
financing from another bank for capital expenditures required at its South
Carolina facility. See "--Liquidity and Capital Resources."
    
 
    In connection with additional borrowings under the Existing Credit Facility
in December 1997, the Company issued the Second Warrant (as defined herein) to
its principal bank lender, which has been recorded as a discount to the related
debt at fair value. The fair value attributable to the Second Warrant, $327,000,
will be amortized as interest expense for the period January 1, 1998 through
October 1, 1998. On April 1, 1998, the Company and the lender entered into the
Facility Restructuring Agreement under which the Company received an option to
pay a fee of $235,313 to eliminate certain anti-dilution provisions of the
lender's warrants upon the closing of the offering. See "--Liquidity and Capital
Resources."
 
                                       26
<PAGE>
SEGMENT INFORMATION
 
    The following table sets forth certain information regarding the revenue,
operating profit (loss) and identifiable assets attributable to the three
business segments in which the Company currently operates.
 
   
<TABLE>
<CAPTION>
                                                                       YEAR ENDED               SIX MONTHS ENDED
                                                                      DECEMBER 30,                 MARCH 31,
                                                             -------------------------------  --------------------
                                                               1995       1996       1997       1997       1998
                                                             ---------  ---------  ---------  ---------  ---------
                                                                     (IN THOUSANDS)               (UNAUDITED)
<S>                                                          <C>        <C>        <C>        <C>        <C>
Net sales and contract revenues:
  Specialty Metal Products.................................  $  12,102  $  13,730  $  13,170  $   5,553  $   6,478
  Depleted Uranium Penetrators.............................      1,713      8,775      9,927      5,379      8,864
  Uranium Services & Recycle...............................      4,969      6,189      4,965      1,681      3,427
 
Operating profit (loss):
  Specialty Metal Products.................................       (341)     1,432     (2,085)    (1,639)      (244)
  Depleted Uranium Penetrators.............................       (237)      (942)      (415)       202     (1,467)
  Uranium Services & Recycle...............................       (996)    (2,700)     4,661      2,176        912
 
Identifiable assets:
  Specialty Metal Products.................................      5,140      6,195      6,155      5,735      7,339
  Depleted Uranium Penetrators.............................     12,158      8,441      7,965     10,995      9,503
  Uranium Services & Recycle...............................     16,609     13,749     14,849     11,271     14,679
</TABLE>
    
 
    The following table sets forth segment information based on segmentation of
the Company's business into two segments, namely Specialty Metal Products and
Advanced Recycling Technologies and Uranium Services. See "--General."
 
   
<TABLE>
<CAPTION>
                                                                       YEAR ENDED               SIX MONTHS ENDED
                                                                      SEPTEMBER 30,                MARCH 31,
                                                             -------------------------------  --------------------
                                                               1995       1996       1997       1997       1998
                                                             ---------  ---------  ---------  ---------  ---------
<S>                                                          <C>        <C>        <C>        <C>        <C>
                                                                                (IN THOUSANDS)
Net sales and contract revenues:
  Specialty Metal Products (1).............................  $   9,184  $  11,744  $   9,884  $   4,523  $   5,237
  Advanced Recycling Technologies and Uranium Services
    (2)....................................................      9,600     16,950     18,178      8,090     13,532
Operating profit (loss):
  Specialty Metal Products.................................       (169)     1,415     (2,379)    (1,505)      (250)
  Advanced Recycling Technologies and Uranium Services.....     (1,405)    (3,625)     4,540      2,244       (549)
Identifiable assets:
  Specialty Metal Products.................................      4,097      5,565      5,315      4,897      6,577
  Advanced Recycling Technologies and Uranium Services.....     29,810     22,820     23,654     23,104     24,944
</TABLE>
    
 
- ------------------------
 
(1) Specialty Metal Products excludes the production of DU billets for
    conversion into tank armor and DU industrial and medical shielding products.
 
(2) Advanced Recycling Technologies and Uranium Services includes the Company's
    current Depleted Uranium Penetrators and Uranium Services & Recycle
    segments, plus production of DU tank armor billets and shielding products.
 
                                       27
<PAGE>
RESULTS OF OPERATIONS
 
   
    The following table sets forth certain items in the consolidated statements
of income as a percentage of net sales and contract revenues for the fiscal
years 1995, 1996 and 1997 and the six months ended March 31, 1998.
    
 
   
<TABLE>
<CAPTION>
                                                                        YEAR ENDED               SIX MONTHS ENDED
                                                                       SEPTEMBER 30,                MARCH 31,
                                                              -------------------------------  --------------------
                                                                1995       1996       1997       1997       1998
                                                              ---------  ---------  ---------  ---------  ---------
                                                                                                   (UNAUDITED)
<S>                                                           <C>        <C>        <C>        <C>        <C>
Net sales and contract revenues.............................        100%       100%       100%       100%       100%
Costs and expenses:
  Cost of sales.............................................         82         87         68         63         77
  Selling, general and administrative expenses..............         26         19         19         26         24
  Research and development expenses.........................          2          3          5          5          3
  Loss on write-off of fixed asset..........................         --         --          1         --         --
Operating income (loss).....................................        (10)        (9)         6          6         (4)
Interest and other income (expense), net....................          1         --         --         --         --
Interest expense............................................          2          1          1          1          3
Income (loss) before income taxes and extraordinary item....        (11)       (11)         5          5         (7)
Provision (benefit) for income taxes........................        (10)        --         --         --         --
Income (loss) before extraordinary item.....................         --        (11)         5          5         (7)
Net income (loss)...........................................          3        (11)         5          5         (7)
</TABLE>
    
 
   
SIX MONTHS ENDED MARCH 31, 1998 COMPARED WITH SIX MONTHS ENDED MARCH 31, 1997
    
 
   
    Net sales increased by $6,156,000 or 49% to $18,769,000 in the first six
months of fiscal 1998 compared to the first six months of fiscal 1997. Sales in
the Uranium Services and Recycle industry segment increased by $1,746,000 or
104%. Sales in the specialty Metal Products segment increased by $925,000 or
17%. Sales in the Depleted Uranium Penetrator segment increased by $3,485,000 or
65%.
    
 
   
    The sales increase in the Uranium Services and Recycle segment was due
primarily to AVLIS feedstock production orders which were completed in the
second quarter of fiscal 1998. To be prepared for anticipated AVLIS production,
the workforce at Starmet CMI Corporation was increased significantly during the
first six months of fiscal 1998. The sales increase in the Specialty Metal
Products segment was due primarily to increased production volume of Beralcast
products and medical powders. The sales increase in the Depleted Uranium
Penetrator segment was due to a $3,806,000 increase in revenue recognized on the
remediation of the holding basin at the Company's Concord facility pursuant to a
U.S. Army contract, which revenue generates nominal gross margin. That increase
was partially offset by a $321,000 decrease in sales of Depleted Uranium
penetrators and blanks. Due to anticipated reduced U.S. government procurement
plans, the Company expects that no revenues will be derived from the Depleted
Uranium penetrator operations after the second quarter of fiscal 1999.
    
 
   
    Gross profit in the first six months of fiscal 1998 decreased by $468,000 to
$4,243,000 or 10% from $4,711,000 in the first six months of fiscal 1997. Within
the Specialty Metal Products segment, gross profit increased by $1,386,000,
including a gross profit increase on Beralcast products of $1,031,000 from
$(1,379,000) in the first six months of fiscal 1997 to $(348,000) in the first
six months of fiscal 1998, principally due to increased sales volumes and the
absence in the second quarter of fiscal 1998 of certain Beralcast production
start-up costs incurred in the second quarter of fiscal 1997. Also contributing
to the gross profit increase within this segment were gross profit increases in
commercial DU and powder products, partially offset by a gross profit decrease
associated with other Specialty Metal Products sales. Gross profit within the
Uranium Services and Recycle segment in the first six months of fiscal 1998
decreased by $878,000 over the comparable period of fiscal 1997. This decrease
was largely attributable to
    
 
                                       28
<PAGE>
   
the absence in the first six months of fiscal 1998 of a reserve reduction for
waste disposal of $670,000 and a $740,000 reduction in an inventory reserve
related to the Company's South Carolina facility which occurred in the
comparable period of fiscal 1997. The first six months of fiscal 1998 also
included a $982,000 decrease in gross profit within the Depleted Uranium
Penetrator segment due primarily to reduced volumes of penetrators and blanks
partially offset by increased sales of other products within this segment. As a
percentage of sales, gross profit was 22% for the first six months of fiscal
1998 compared to 37% for the first six months of fiscal 1997.
    
 
   
    Selling, general and administrative expenses increased by $1,202,000 or 37%
in the first six months of fiscal 1998 compared to the first six months of
fiscal 1997. Of this increase, $719,000 related to an increase in sales and
administrative personnel at the Company's Concord, Massachusetts facility to
support its sales growth. The balance of the increase, approximately $483,000,
related to an increase in sales and administrative personnel at the Company's
South Carolina facility to support sales growth of the AVLIS feedstock program
and remediation contracts for customers. As a percentage of sales, these
expenses were 24% in the first six months of fiscal 1998 compared to 26% in the
first six months of fiscal 1997.
    
 
   
    Interest expense increased to $489,000 in the first six months of fiscal
1998 from $119,000 for the first six months of fiscal 1997. This increase was
primarily attributable to interest expense associated with increased borrowings
under the Company's line of credit and shareholder notes, as well as the
increase in the amortization of warrants issued in connection with an amendment
to the Company's line of credit and the issuance of certain shareholder notes.
    
 
   
    Income taxes during the first six months of fiscal 1998 and 1997 were at an
effective rate of 0% and 2%, respectively. The Company has unrecognized net
operating loss carryforwards resulting in a minimal effective tax rate.
    
 
FISCAL 1997 COMPARED WITH FISCAL 1996
 
    Net sales decreased by $632,000 or 2% to $28,062,000 in fiscal 1997 compared
to $28,694,000 in fiscal 1996. Sales in the Uranium Services and Recycle segment
decreased by $1,224,000 or 20%. Sales in the Specialty Metal Products segment
decreased by $560,000 or 4%. Sales in the Depleted Uranium Penetrator segment
increased by $1,152,000 or 13%.
 
    The sales decrease in the Uranium Services and Recycle segment was primarily
due to lack of volume in depleted uranium products due to completion of a
production contract for a foreign customer in fiscal 1996. This decrease was
partially offset by increases in AVLIS feedstock production for USEC. The sales
decrease in the Specialty Metal Products industry segment was a result of
decreased volumes of beryllium products due to a delay in expected orders,
partially offset by an increase in commercial depleted uranium products. The
sales increase in the Depleted Uranium Penetrator segment was the result of
higher production volume of penetrators for a foreign customer as a result of an
order which was expected to receive government funding in fiscal 1996 but which
was not funded until fiscal 1997 and the revenue recognized pursuant to the
Company's contract with the United States Army to remediate the holding basin at
the Company's Concord facility.
 
   
    Gross profit increased by $5,285,000 to $8,926,000 or 32% of sales in fiscal
1997 compared to $3,641,000 or 13% of sales in fiscal 1996. This increase in
gross profit was primarily due to reduction of certain accruals in fiscal 1997
for waste burial costs of $1,750,000 and a reduction of inventory reserves of
$1,000,000. The revised contract price for waste burial costs was approximately
$1,750,000 lower than what was previously estimated and accrued. During 1997,
the Company used approximately $2,144,000 worth of inventory in AVLIS feedstock
production for USEC. As a result of this reduction in inventory, the Company
decreased the inventory reserves by $1,000,000. In addition, gross profit for
fiscal 1996 was reduced by an accrual of a $2,100,000 reserve for anticipated
fiscal 1997 operating losses associated with production contracts in the Uranium
Services and Recycle segment. As of September 30, 1997, the accrual had been
fully utilized.
    
 
                                       29
<PAGE>
    Selling, general and administrative expenses increased by $123,000 or 2% to
$5,448,000 in fiscal 1997 compared to fiscal 1996. This increase was primarily
due to additional employees required to support the forecasted growth in
business. As a percentage of sales, these expenses remained at 19% in fiscal
1997 compared to fiscal 1996.
 
    Company-sponsored research and development expenses increased by 49% or
$433,000 to $1,309,000 for fiscal 1997. As a percentage of sales, these expenses
were 5% compared to 3% in fiscal 1996.
 
    Interest and other income decreased to ($2,000) in fiscal 1997 as compared
to ($89,000) in fiscal 1996. This decrease was mainly due to the absence in
fiscal 1997 of a restructuring fee associated with amendments to the Company's
credit facility during the third quarter of fiscal 1996.
 
    Interest expense decreased by $91,000 to $296,000 in fiscal 1997 as compared
to fiscal 1996. This decrease was primarily the result of higher interest rates
and fees associated with outstanding debt during fiscal 1996.
 
    Income taxes provided during 1997 and 1996 were at effective rates of 2% and
0%, respectively. The 1997 effective rate of 2% differs from the statutory rate
of 34% due to a reduction in the valuation allowance associated with to the
benefit of net operating loss carryforwards.
 
FISCAL 1996 COMPARED WITH FISCAL 1995
 
    Net sales increased by $9,910,000 or 53% to $28,694,000 in fiscal 1996
compared to $18,784,000 in fiscal 1995. Sales in the Uranium Services and
Recycle segment increased by $1,220,000 or 25%. Sales in the Specialty Metal
Products segment increased by $1,628,000 or 13%. Sales in the Depleted Uranium
Penetrator segment increased by $7,062,000 or 412%.
 
    The sales increase in the Uranium Services and Recycle segment was primarily
due to increases in AVLIS feedstock production for USEC. The sales increase in
the Specialty Metal Products segment was a result of higher sales of beryllium
products and commercial depleted uranium. The sales increase in the Depleted
Uranium Penetrator segment was the result of higher sales of large caliber
penetrators.
 
    During the third quarter of fiscal 1996, the Company reduced its workforce
from 55 to 24 employees at its South Carolina facility due to the completion of
a multi-year contract for the manufacture of depleted uranium for a foreign
customer and the lack of anticipated new orders. The Company had expected to
obtain orders from USEC and the DoE in the second half of fiscal 1996. These
orders did not materialize and as a result this facility operated at
approximately 40% capacity on a one-shift basis through most of fiscal 1996. In
the fourth quarter of fiscal 1996, the Company established a $2,100,000 reserve
for estimated fiscal 1997 losses associated with then current production
contracts.
 
    Gross profit increased by $309,000 to $3,641,000 or 13% of sales in fiscal
1996 compared to $3,332,000 or 18% of sales in fiscal 1995. This increase in
gross profit was primarily due to increased sales volume during fiscal 1996. As
a percentage of sales, the decrease in gross profit was primarily due to the
establishment of a $2,100,000 reserve for estimated losses associated with CMI's
production contracts.
 
   
    Selling, general and administrative expenses increased by $508,000 to
$5,325,000 in fiscal 1996 compared to fiscal 1995. This increase was primarily
due to additional employees required to support the growth in business. As a
percentage of sales, these expenses decreased to 19% in fiscal 1996 compared to
26% in fiscal 1995, as a result of sales increasing at a higher rate than
expenses.
    
 
   
    Company-sponsored research and development expenses increased by 100% or
$439,000 to $876,000 in fiscal 1996 compared to fiscal 1995 due to increased
research and development costs related to the use of the Company's Beralcast
technology in certain military aerospace applications. As a percentage of sales,
these expenses were 3% in fiscal 1996 compared to 2% in fiscal 1995.
    
 
                                       30
<PAGE>
    Interest and other income decreased to $89,000 of expense in fiscal 1996
compared to $232,000 of income for fiscal 1995. This decrease was mainly from a
$150,000 restructuring fee associated with amendments to the Company's credit
facility during the third quarter of fiscal 1996 and a gain of $175,000
recognized during the second quarter of fiscal 1995 on the sale of an office
building.
 
    Interest expense increased by $37,000 to $387,000 in fiscal 1996 compared to
fiscal 1995. This increase was primarily the result of higher interest rates and
fees associated with outstanding debt during fiscal 1996.
 
    During fiscal 1995, the Company realized a $585,000 extraordinary gain net
of taxes of $10,000 on the early extinguishment of debt.
 
    Income taxes provided during 1996 were at an effective rate of 0%. The 1996
effective rate of 0% differed from the statutory rate of 34% due to a reduction
in the valuation allowance associated with to the benefit of net operating loss
carryforwards.
 
LIQUIDITY AND CAPITAL RESOURCES
 
   
    In recent fiscal years, the Company's primary sources of liquidity have been
borrowings under the Existing Credit Facility, borrowings from shareholders and,
to a limited extent, cash from operations. The Company has experienced
significant financial difficulties and liquidity problems in recent years due
primarily to the sharp decline in sales of DU penetrators and a lack of orders
for certain other DU products. As a result, the Company has had to seek
financing from stockholders, waivers of non-compliance with certain covenants in
its debt instruments (including waivers under the Existing Credit Facility in
February and May of 1998) and additional borrowings under the Existing Credit
Facility. Bank borrowings and borrowings from stockholders were effected to fund
working capital requirements, capital expenditures and a number of expenses
which were incurred in expectation of future business and revenues from the
Company's Beralcast business and its South Carolina facility.
    
 
    The Company's future liquidity needs are expected to arise primarily from
its capital expenditure program, which is designed primarily to increase
manufacturing capacity to support its Beralcast business. In order to obtain and
satisfy orders for large scale commercial production of its Beralcast products,
the Company plans to significantly increase capital expenditures to expand its
commercial Beralcast manufacturing capabilities through fixed asset additions
including furnaces, automated production equipment and facility upgrades. The
Company anticipates spending up to approximately $90 million over the next four
years, subject to various factors, to increase the capacity at the Company's
facilities. Of this amount, the Company expects to spend approximately $60
million on the expansion of its Beralcast business. The Company expects to fund
such capital expenditures with the proceeds of the offering and cash expected to
be generated from operations. See "Business--Manufacturing and Operations."
 
    Net cash provided (used) by operating activities in fiscal years 1997, 1996
and 1995 was ($921,000), $3,776,000 and ($278,000), respectively. Differences in
cash flows from operating activities over this three-year period were primarily
related to significant year-to-year changes in accounts receivable, inventories
and accounts payable. The Company used net cash of $1,788,000, $1,107,000 and
provided $36,000 in fiscal years 1997, 1996 and 1995, respectively, primarily to
fund investing activities largely related to capital expenditures made in
anticipation of future commercial business. Net cash flows from financing
activities for fiscal years 1997, 1996 and 1995 were $1,676,000, ($2,444,000)
and $105,000, respectively. Net cash provided for financing activities in fiscal
1997 was primarily the result of an increase in bank borrowings of approximately
$1,700,000 and $500,000 in borrowings from shareholders. Fiscal 1996 net cash
used by financing activities was primarily the result of reduction of bank debt
in accordance with credit terms. As a result of the foregoing, net cash
increased (decreased) in fiscal years 1997, 1996 and 1995 by $(1,033,000),
$225,000 and $(137,000), respectively.
 
                                       31
<PAGE>
   
    Net cash used by operating activities in the six months ended March 31, 1997
and 1998 was $508,000 and $1,785,000, respectively. Differences in cash flows
from operating activities were primarily related to significant changes in net
income, accounts receivable, inventories and accounts payable. The Company used
net cash of $773,000 and $2,349,000 for periods ended March 31, 1997 and 1998,
respectively, primarily to fund investing activities largely related to capital
expenditures made in anticipation of future commercial business. Net cash
provided by financing activities for the periods ended March 31, 1997 and 1998
was $428,000 and $4,186,000, respectively and resulted primarily from increases
in bank borrowings and borrowings from stockholders. As a result of the
foregoing, net cash decreased by $853,000 in the six month periods ended March
31, 1997 and increased by $52,000 in the six month period ended March 31, 1998.
    
 
   
    At March 31, 1998, the Company had working capital of $7,928,000, a decrease
of $2,815,000 since the end of fiscal 1997. At March 31, 1998, the Company's
accounts receivable and inventories increased by $2,197,000 and $45,000,
respectively, compared to September 30, 1997 levels. Cash (less restricted cash)
at March 31, 1998 was $247,000. Current indebtedness increased to $11,881,000
from $7,130,000 as a result of increased borrowings under the Existing Credit
Facility (as described below) and increased borrowings from shareholders. At
March 31, 1998, the Company had $5,113,000 outstanding under its bank line of
credit, with $887,000 available for borrowing thereunder (after subtraction of
$3,550,000 in letters of credit issued thereunder). At March 31, 1998, notes
payable to shareholders increased to $2,250,000 from $1,350,000 as at September
30, 1997, excluding the unamortized discount. At May 14, 1998, the Company had
$5,114,000 outstanding under its line of credit, $3,550,000 outstanding in
letters of credit and $886,000 available for borrowing thereunder.
    
 
   
    As of March 31, 1998, the Company was out of compliance with the capital
expenditure financial covenant under its credit agreement which prohibits the
Company from making capital expenditures above $2,000,000 annually. On May 15,
1998, the Company received a waiver for this event of non-compliance and of
non-compliance with the capital expenditure financial covenant for the remainder
of fiscal 1998. The Company also received a waiver of non-compliance in February
1998 with respect to its failure to meet a net income covenant in the first
quarter of fiscal 1998.
    
 
    On October 1, 1997, the Company and its principal bank lender, State Street
Bank & Trust Company, entered into an Amended and Restated Credit Agreement
providing for a credit facility (as amended, the "Existing Credit Facility") of
$6.6 million, including $3.6 million in letters of credit. Borrowings under the
Existing Credit Facility bear interest, payable monthly in arrears, at a rate
equal to the lender's prime rate plus one-half of one percent and the Company
pays a fee of one-half of one percent of the unused portion of the facility.
Borrowings are secured by a security interest in all of the Company's accounts,
inventory and general intangibles. The Company and its lender entered into the
First Amendment to Credit Agreement dated December 9, 1997 which provided for an
increase in the Existing Credit Facility to $8.0 million. On December 29, 1997,
the Company entered into the Second Amendment to the Credit Agreement which
provided for the following: (i) an increase in the total amount of credit
available to the Company from $8.0 million to $9.6 million consisting of a $6.0
million line of credit and $3.6 million letters of credit; (ii) a revised
amortization schedule whereby $1.5 million is due July 1, 1998, $1.5 million is
due October 1, 1998 and the balance, $3.0 million, is due on February 28, 1999;
and (iii) waiver of non-compliance by the Company with certain covenants in the
Existing Credit Facility and amendment of certain financial covenants. As a
result of the loss in the first quarter of fiscal 1998, the Company sought and
obtained a waiver of non-compliance with certain covenants in the Existing
Credit Facility. The Company intends to use a portion of the proceeds of the
offering to repay all amounts outstanding under the Existing Credit Facility.
 
   
    In September 1995, in connection with an increase of the Company's borrowing
capacity under the Existing Credit Facility as then in effect, the Company
issued to the lender a warrant (the "First Warrant") to purchase 55,790 shares
of Common Stock (as adjusted for a two-for-one stock dividend paid on April 7,
1997 and certain subsequent anti-dilution adjustments) at an exercise price of
$5.95, based on the market
    
 
                                       32
<PAGE>
price of the Common Stock at that time. The First Warrant has a ten-year
exercise period. In consideration of the Second Amendment to the Credit
Agreement, the Company issued to the lender a warrant (the "Second Warrant" and,
together with the First Warrant, the "Warrants") to purchase 25,000 shares of
Common Stock at an exercise price of $23.58, based on the market price of the
Common Stock at that time. The Second Warrant has a seven-year exercise period.
The Second Warrant has been valued at approximately $327,000, which amount will
be amortized as interest expense over the period ending October 1, 1998. Under
the original terms of each of the Warrants, the holder of the Warrants would be
entitled to receive, without further consideration, a number of shares of Common
Stock which would permit the holder to maintain its percentage ownership in the
Company, on a fully-diluted basis, upon any future issuances of Common Stock by
the Company.
 
   
    On April 1, 1998, the Company entered into an agreement (the "Facility
Restructuring Agreement") with its principal bank lender pursuant to which,
contingent upon the closing of the offering, the Company received an option to
make a payment of $235,313 to the lender whereupon no further adjustments for
issuances of Common Stock by the Company will be made under the First Warrant
(other than an adjustment related to the closing of the offering) and no
adjustments for issuances of Common Stock by the Company will be made under the
Second Warrant. After the completion of the offering, the number of shares
issuable upon exercise of the First Warrant will equal 78,923 shares (83,550
shares assuming the Underwriters' over-allotment option is exercised in full).
Upon the closing of the offering and the repayment of all amounts outstanding
under the Company's Existing Credit Facility and certain stockholder
subordinated indebtedness, the Company expects to record an extraordinary loss
on the early extinguishment of debt of $725,000 ($.14 per share), as a result of
writing off all unamortized deferred financing costs and discounts. See
"--General" and Notes 6 and 8 to the Consolidated Financial Statements.
    
 
   
    The Company has been notified by its principal bank lender that, effective
upon the closing of the offering, the lender proposes to extend to the Company a
$10,000,000 unsecured revolving credit facility maturing on February 28, 2000
(the "Proposed Credit Facility"). The Company expects that borrowings under the
Proposed Credit Facility will bear interest, payable monthly in arrears, at the
Company's option, at either a variable rate equal to the bank's prime rate or at
a rate equal to the London Inter-Bank Offered Rate ("LIBOR") plus a margin based
on quarterly net income. Borrowings under the Proposed Credit Facility will be
used for working capital and standby letters of credit and will be subject to
the satisfaction of certain financial covenants. The Proposed Credit Facility
terms provide that the Company will not pledge its assets to any third party.
    
 
   
    The Company's subsidiary, Starmet CMI Corporation, has a term loan
obligation in the amount of $370,000 to Palmetto Federal Savings and Loan
Association of South Carolina ("Palmetto"). As of March 31, 1998 the outstanding
balance on this term loan obligation was approximately $323,000. On March 20,
1998, Starmet CMI Corporation entered into a second loan with Palmetto and the
Lower Savannah Regional Development Corporation in the aggregate principal
amount of $995,000, which bears interest at a rate of 10% and matures in ten and
one-half years with a rate adjustment at the end of five and one-half years. As
of May 15, 1998, the Company had drawn $500,000 against the second loan. Both
the first and second loans are guaranteed by the Company and secured by
mortgages on CMI's South Carolina property. The second loan will be used to
expand CMI's manufacturing capabilities at its South Carolina facility.
    
 
    The Company has outstanding in the aggregate $2,250,500 in principal amount
under debt instruments issued to certain of its principal stockholders,
consisting of the following: $500,500 in principal amount of its 10% Convertible
Subordinated Debentures due December 10, 1998, which are convertible at any time
into Common Stock at $5.945 per share; $350,000 in principal amount of its 10%
Subordinated Debentures due December 10, 1998, with three-year warrants to
purchase 42,000 shares of Common Stock at an exercise price of $7.50 per share;
$500,000 in principal amount of its 10% Subordinated Debentures due December 10,
2000, with three-year warrants to purchase 60,000 shares of Common Stock at an
 
                                       33
<PAGE>
exercise price of $17.875 per share; and $900,000 in principal amount of its 10%
Convertible Subordinated Debentures due December 31, 1999, the principal amount
of which is convertible at any time into Common Stock at $21.50 per share. The
Company intends to use a portion of the proceeds of the offering to repay all of
the 10% Subordinated Debentures. The Company intends to offer to repay all of
the 10% Convertible Subordinated Debentures but expects that the holders thereof
will convert such debt into Common Stock instead of accepting repayment.
 
   
    The Company believes, based on assumptions concerning backlog fulfillment
and the expected timing of new orders, that the proceeds of the offering, cash
from operations, and borrowings which it expects to be available under the
Proposed Credit Facility will be sufficient to sustain operations for more than
12 months and to fund anticipated capital expenditures.
    
 
   
    The Company anticipates that, for the foreseeable future, all earnings will
be retained to support operations and finance expansion. The Company has not
paid cash dividends in recent years, and does not intend to pay cash dividends
on the Common Stock for the foreseeable future. The Company's ability to pay
cash dividends is limited by its dependence upon the receipt of cash from its
subsidiaries to make such dividend payments. The Company's Existing Credit
Facility contains financial covenants and other restrictions that prohibit or
restrict the payment of dividends and intercompany loans among Starmet and its
subsidiaries and by the Company to its stockholders. The Company expects that
the Proposed Credit Facility will not prohibit or restrict payment of dividends.
    
 
    The Company has not invested in derivative securities or any other financial
instrument that involves a high level of complexity or risk. Management expects
that, in the future, cash in excess of current requirements will be invested in
investment-grade, interest-bearing securities.
 
ENVIRONMENTAL, HEALTH AND SAFETY MATTERS
 
    The Company is subject to comprehensive and changing Environmental Laws that
(i) govern activities or operations that may have adverse environmental effects,
such as discharges to air and water, as well as handling and disposal practices
for solid and hazardous wastes, and (ii) impose liability for the costs of
cleaning up, and certain damages resulting from, sites of past spills, disposals
or other releases of hazardous substances and materials, including liability
under CERCLA, and similar state statutes for the investigation and remediation
of environmental contamination at properties owned and/or operated by it and at
off-site locations where it has arranged for the disposal of hazardous
substances. Furthermore, depleted uranium, a material regularly processed by the
Company, is a low-level radioactive material and the Company is subject to
governmental licensing and regulation.
 
    If it is determined that the Company is not in compliance with current
Environmental Laws, the Company could be subject to fines and penalties. The
amount of any such fines and penalties could be material. In addition, the
Company uses depleted uranium, beryllium and other hazardous substances, and as
is the case with manufacturers in general, if a release of hazardous substances
occurs on or from the Company's properties or from an off-site disposal
facility, the Company may be held liable and may be required to pay the costs of
remedying the condition. The amount of any such liability and costs could be
material. See "Risk Factors--Environmental, Health and Regulatory Matters"
"Business--Environmental, Safety and Regulatory Matters" and "Business--Concord
Site Remediation and Decommissioning Planning Requirements."
 
   
    The Company is required to maintain certain licenses issued by the
Massachusetts Department of Public Health ("DPH") and the South Carolina
Department of Health and Environmental Control ("DHEC") in order to possess and
process depleted uranium materials at its facilities in Concord and South
Carolina, respectively. Under applicable licensing regulations pertaining to
decommissioning and disposal of certain hazardous materials ("D&D") at licensed
sites, the Company submitted to the Nuclear Regulatory Commission ("NRC") (the
predecessor of DPH, in this regard) and the applicable state agencies a
Decommissioning Funding Plan ("DFP") to provide for possible future
decommissioning of its
    
 
                                       34
<PAGE>
   
facilities. The Concord facility DFP estimated cost is $11.7 million and the
South Carolina facility DFP estimate is $2.9 million. The Company is required to
provide financial assurance for such decommissioning pursuant to applicable
regulations. The Company has satisfied these requirements, and as a result, the
site licenses for both locations have been renewed.
    
 
   
    The estimated costs of the DFPs for the D&D at the Company's facilities have
not been and are not expected to be material to the Company's results of
operations or financial condition. Substantially all of the depleted uranium
materials to which the DFP requirements apply were processed by the Company for
the U.S. government. Based on the terms of certain contracts with the U.S.
government to process such depleted uranium materials, the U.S. government is
obligated, under applicable laws, to pay for its percentage of the eventual
costs of the D&D. The U.S. Army, in a Memorandum of Decision dated September 13,
1996 (the "Memorandum of Decision"), pursuant to Public Law 85-804, agreed that
it would fund the D&D costs related to the Company's Concord facility. The Army
has also provided written assurance to the NRC (subject to funding
appropriations) of its intention to provide funding for the D&D costs at the
Concord facility.
    
 
   
    The Company has not requested, and has not received, any specific written
assurance that the Army will accept responsibility for the D&D costs at the
Company's South Carolina facility. However, substantially all of the depleted
uranium materials to which the South Carolina facility DFP requirements apply
resulted directly from work under U.S. government contracts. Based on the
practice of the U.S. Army to fund historical and current D&D costs and the
advice of legal counsel, the Company believes that the U.S. Army is responsible
for substantially all of the remaining D&D costs. See Note 11 to Consolidated
Financial Statements.
    
 
LEGAL PROCEEDINGS
 
    On December 9, 1997, Brush Wellman filed a patent infringement suit against
the Company in the Massachusetts District Court alleging that the Company is
infringing on the Brush Wellman Patent for the process of investment casting of
beryllium aluminum alloys. Brush Wellman is seeking an injunction against the
Company's alleged patent infringement, monetary damages (including treble
damages) and attorney fees. On March 28, 1998, the PTO granted the Company's
request for re-examination (filed January 27, 1998). In the Request, the Company
contended, among other things, that there was sufficient "prior art" in the
field of investment castings and castings of beryllium aluminum alloys such that
the Brush Wellman Patent should not have been issued. In granting the Request,
the patent examiner agreed that the Company's cited examples of prior art raised
substantial new issues of patentability which were not decided in the prior
examination which led to granting the Brush Wellman Patent. The PTO will
undertake a process of re-examination of the validity of the Brush Wellman
patent that, the Company anticipates, could last for an extended period. There
can be no assurance that the PTO will find the Brush Wellman Patent to be
invalid. On January 27, 1998, the Company filed in the Massachusetts District
Court a motion to stay the court case pending the outcome of the re-examination
proceeding. If the Massachusetts District Court were to grant the motion to
stay, the court case would not proceed until the conclusion of the PTO's
re-examination of the Brush Wellman Patent. Although the Company believes that
its motion to stay has merit, no assurance can be given that the Massachusetts
District Court will grant the motion.
 
    Even though the Company has been advised by patent counsel that Brush
Wellman's claims are without merit because the Brush Wellman Patent is invalid
as a matter of law due to "prior art" and due to the Company's sales of
investment cast beryllium aluminum products more than one year prior to the
Brush Wellman Patent application, no assurance can be given as to the ultimate
outcome of the lawsuit. Even if the lawsuit were not to proceed to trial, the
litigation could result in substantial costs to the Company, and an unfavorable
settlement of the lawsuit could place the Company at a competitive disadvantage.
An adverse judgment or settlement could subject the Company to significant
liabilities and expenses (e.g., reasonable royalties, lost profits, attorneys'
fees or trebling of damages for willfulness). An adverse outcome also could
cause the Company to incur substantial costs in redesigning the investment
 
                                       35
<PAGE>
casting process for its Beralcast products and components. Moreover, there can
be no assurance that redesign alternatives would be available to the Company,
and if available, that any redesign alternative would not place the Company at a
competitive disadvantage. The Company could be required to license the disputed
patent rights from Brush Wellman or to cease using the patented technology. Any
such license, if required, may not be available on terms acceptable or favorable
to the Company, or at all. Any of these results could have a material adverse
effect on the Company's business, financial condition and results of operations.
Even in the event of a successful outcome, the Company may incur significant
legal expenses in its defense. See "Risk Factors--Pending Beralcast Patent
Litigation; Patents and Other Intellectual Property " and "Business--Legal
Proceedings."
 
IMPACT OF YEAR 2000 ISSUE
 
   
    The Company is in the process of updating its accounting and information
systems to ensure that its computer systems are Year 2000 compliant and to
improve the Company's overall manufacturing, planning and inventory related
systems. In fiscal 1997, the Company invested approximately $250,000 to ensure
that the Company is Year 2000 compliant and will continue to make investments in
its computer systems and applications to ensure that the Company is Year 2000
compliant. The Company believes that the Company's computer system is Year 2000
compliant. In addition, the Company maintains a Year 2000 expert on its staff.
The financial impact to the Company of its Year 2000 compliance programs has not
been and is not anticipated to be material to its financial position or results
of operations in any given year. While the Company does not believe it will
suffer any major effects from the Year 2000 issue, it is possible that such
effects could materially impact future financial results, or cause reported
financial information not to be necessarily indicative of future operating
results or future financial condition. In addition, if any of the Company's
significant customers or suppliers do not successfully and timely achieve year
2000 compliance, the Company's business could be materially affected. See "Risk
Factors--Year 2000 Compliance."
    
 
INFLATION
 
    Inflation has not had a material impact on the Company's cost of doing
business. Management attempts to protect the Company by adjusting prices where
market conditions permit and by reviewing and improving production processes
where possible. There can be no assurance that the Company's business will not
be affected by inflation.
 
NEW ACCOUNTING STANDARDS
 
    In June 1997, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards No. 131, "Disclosures about Segments
of an Enterprise and Related Information" ("SFAS 131"). SFAS 131 establishes
standards for public business enterprises to report information about operating
segments in annual financial statements and requires that those enterprises
report selected information about operating segments in interim financial
reports issued to shareholders. It also establishes standards for related
disclosures about products and services, geographic areas and major customers.
This statement supersedes FASB Statement No. 14, "Financial Reporting for
Segments of a Business Enterprise," but retains the requirement to report
information about major customers. SFAS 131 requires, among other items, that a
public business enterprise report a measure of segment profit or loss, certain
specific revenue and expense items, and segment assets, information about the
revenues derived from the enterprise's products or services, and major
customers. SFAS 131 also requires that the enterprise report descriptive
information about the way that the operating segments were determined and the
products and services provided by the operating segments. SFAS 131 is effective
for financial statements for periods beginning after December 15, 1997. In the
initial year of application, comparative information for earlier years is to be
restated. SFAS 131 need not be applied to interim financial statements in the
initial year of its
 
                                       36
<PAGE>
application, but comparative information for interim periods in the initial year
of application is to be reported in financial statements for interim periods in
the second year of application.
 
SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
    Certain statements in this Prospectus, including, without limitation, those
concerning (i) the Company's business and growth strategies, (ii) the Company's
new business and expansion plans, (iii) the effects on the Company of certain
legal proceedings and environmental matters, (iv) the effects on the Company of
changes in the businesses in which it operates or in economic conditions
generally, (v) the use of proceeds of the offering and (vi) the effect on the
Company of actions taken or not taken by its customers, suppliers and
competitors, contain certain forward-looking statements concerning the Company's
operations, economic performance and financial condition. Such forward-looking
statements involve known and unknown risks, uncertainties and other factors
which may cause the actual results, performance or achievements of the Company
to be materially different from any future results, performance or achievements
expressed or implied by such forward-looking statements. Factors that could
cause such differences include, but are not limited to, those discussed in "Risk
Factors," elsewhere herein. The words "believe," "expect," "anticipate,"
"intend" and "plan" and similar expressions identify forward-looking statements.
Readers are cautioned not to place undue reliance on these forward-looking
statements, which speak only as of the date the statement was made. See "Risk
Factors."
 
                                       37
<PAGE>
                                    BUSINESS
 
GENERAL
 
    Starmet is an innovator in the design, development and processing of
specialty metals, a precision manufacturer of technologically sophisticated
metal components and products, and a leader in certain advanced materials
conversion and recycling technologies. A central aspect of the Company's
strategy is to continue to capitalize on its metallurgical, materials science
and manufacturing expertise, developed primarily for military applications, in
order to introduce new products for what the Company believes are high-growth
opportunities in large commercial markets.
 
   
    In its specialty metals business, Starmet produces a wide range of products
and components from advanced metals and alloys. Key among these materials is
Beralcast, the Company's family of beryllium aluminum alloys, which is being
commercially introduced for use in certain advanced applications. Based upon
initial responses by the Company's customers and testing by independent
laboratories, the Company believes that Beralcast is a cutting edge material
with advanced properties which is ideally suited for certain demanding
commercial and aerospace applications. Among its superior performance
characteristics are its light weight, dimensional stability, stiffness,
vibration damping qualities and workability. In its advanced recycling
technologies and uranium services businesses, Starmet is a fully integrated
processor of DU, converting UF(6) to UF(4) and DU metal which it manufactures
into DU products such as feedstock used in the manufacture of nuclear reactor
fuel by USEC for its AVLIS program, radiation shielding, anti-armor tank
penetrator munitions and billets for conversion into tank armor. USEC is the
only customer for the Company's AVLIS feedstock material. See "Risk
Factors--Uncertainties Relating to USEC and UF(6) Conversion."
    
 
   
    Starmet focuses its research and business development efforts on markets it
has identified as offering significant opportunities for growth, including
computer data storage, military and commercial aerospace and premium golf
products, among others. For example, the Company has produced prototype and pre-
production quantities of high-end disk drive arm sets, precision devices used in
rigid computer disk drives, for evaluation by certain leading disk drive
manufacturers in their high-speed, high-capacity disk drives. Among its
customers in this market, Quinta Corporation, a subsidiary of Seagate
Technologies, Inc., has informed the Company that is has selected Beralcast disk
drive arm sets for use in its high-end disk drives utilizing Quinta's next
generation laser-optical technology and that it anticipates purchasing
production levels of Beralcast disk drive arm sets. Beralcast's low density,
high stiffness to weight ratio and enhanced vibration damping qualities when
compared to competing materials results in significantly increased data storage
capacity and reduced data access time in high-end disk drives equipped with
Beralcast disk drive arm sets, according to certain customers of the Company.
For military applications, the Company has received contracts from Lockheed
Martin for 58 separate Beralcast components to be used in its most advanced
electro-optical and target acquisition systems that will be fitted on the
Comanche, the U.S. Army's next generation advanced reconnaissance and attack
helicopter. According to the U.S. Army, Beralcast is the only known material
capable of meeting critical Comanche requirements without significant costly
redesigns. In addition, U.S. and other military forces have identified
opportunities for the use of Beralcast components for other advanced military
programs, such as the F-22 advanced tactical fighter, the updated Patriot
missile, LANTIRN (a low altitude navigation and targeting system) and the French
Rafael advanced fighter aircraft. The Company has delivered prototype parts
pursuant to contracts for these applications and is awaiting follow-on funding
for the next phases of development. The Company believes that further
significant opportunities exist for the use of Beralcast products and components
beyond these currently identified applications in commercial and military
markets.
    
 
    The Company is expanding its manufacturing capacity and plans to invest a
substantial portion of the proceeds of the offering in order to meet anticipated
demand for Beralcast materials. One of the goals of the Company's planned
capital expenditure program is to further reduce product costs, which the
Company believes is essential to the commercialization of Beralcast. Since the
introduction of its Beralcast
 
                                       38
<PAGE>
   
alloys, the Company has realized significant reductions in manufacturing costs
primarily as a result of its Comanche development work, and anticipates that its
manufacturing expansion program and its ongoing experience with Beralcast will
result in continued cost reductions. The Company expects that Beralcast's
advantageous characteristics, including its light weight, dimensional stability
and workability, will generally offset the higher costs of Beralcast products as
compared to certain materials currently employed in markets in which the Company
intends to compete. In addition, the Company is committed to maintaining its
high quality manufacturing standards. The Company was recently certified under
ISO 9002 at its Concord, Massachusetts facility and is the first small business
and one of only fourteen companies nationwide to qualify for the U.S. Army's
highest quality manufacturing certification. Furthermore, the Company holds
regulatory facilities licenses for the processing of low-level radioactive
materials, which management believes represent a competitive advantage and a
significant barrier to entry to potential new competitors. The Company believes
that it operates the only licensed U.S. production facility capable of offering
a broad spectrum of processing, conversion, recycling, manufacturing and
shielding services for DU and other low-level radioactive materials.
    
 
   
    Since its origins as a metallurgical laboratory affiliated with MIT in 1942,
the Company has developed a strong platform in the research and development of
various materials science technologies. Throughout its history, the Company has
maintained close relationships with MIT and several of the principal research
laboratories affiliated with the United States government, namely the Los Alamos
National Laboratories, the Lawrence Livermore National Laboratories, and the
Sandia National Laboratories. Each of these research laboratories has been or is
a party to cooperative research and development agreements with Starmet to
jointly develop and improve various materials science technologies and to share
such research. The Company has funded certain research programs led by MIT staff
members and shared laboratory facilities with MIT. In addition, Dr. Kenneth
Smith, a Professor of Chemical Engineering and former Associate Provost of MIT,
has served on the Company's Board of Directors since 1985. The Company believes
that these relationships, its patented and proprietary technology, internal and
customer funded research and development efforts and its sole supplier or
provider status in some instances position Starmet at the forefront of the
development and commercialization of various materials science technologies,
including casting, the manufacture of powdered metals, the development of
various specialized alloys and advanced materials recycling. Over the course of
its history, the Company has undergone several transitions in response to
fundamental changes in its markets and to take advantage of new business
opportunities. From its focus on high-volume commercial production of specialty
metal powders during the 1970s and the precision manufacture of DU penetrators
used in anti-armor munitions during the 1980s and 1990s, to the recent
introduction of Beralcast, the Company has a history of developing and bringing
to market products that are extensions of its strong foundation in materials
science, such as spherical powders for use in early Xerox machines, bi-metal
components for the Apollo space program and Beralcast components for the United
States military's F-22 fighter and Comanche helicopter.
    
 
INDUSTRIES AND MARKETS
 
BERALCAST
 
    The Company's Beralcast products and components were initially developed for
the military aerospace industry. To date, the Company has supplied prototype
products and subassemblies made of Beralcast for several high-performance weapon
systems including Comanche. Comanche is the U.S. Army's next generation advanced
reconnaissance and attack helicopter. The U.S. government has appropriated $300
million for the Comanche helicopter program for fiscal 1998 and full-scale
production is anticipated in 2003.
 
    In addition to use in military aerospace applications, the Company believes
opportunities exist for Beralcast alloys in a number of commercial applications,
such as computer disk drive arm sets. According to Disk/Trend, Inc., an industry
source, sales of rigid disk drives are expected to grow from $34 billion in 1997
to over $75 billion in 2000. Approximately 105 million rigid disk drives were
shipped in 1996, and
 
                                       39
<PAGE>
   
shipments of rigid disk drives are expected to grow from an estimated 126
million units in 1997 to 201 million units in 2000, according to Disk/Trend,
Inc. Within the computer disk drive market, the Company has identified high-end
computer disk drives as the target for its Beralcast products, a market which
the Company believes represents between 5% and 10% of the total rigid disk drive
market. Disk drive manufacturers have historically increased storage capacity of
their disk drives at a very rapid rate and anticipate that their next generation
disk drives will double current storage capacity. According to International
Business Machines Corporation ("IBM"), disk drive storage density has grown by
60% annually since 1991, while semiconductor density grew 47% to 50% each year.
The four largest disk drive manufacturers, Quantum Corporation, Seagate
Technology, Inc. (including its subsidiary Quinta Corporation), Western Digital
Corporation and IBM, represent approximately 76% of the rigid disk drive market.
Based upon input from certain disk drive manufacturers, Starmet believes that
its Beralcast disk drive arm sets will be an instrumental part of enabling
high-end disk drive manufacturers to develop and introduce new generations of
disk drives.
    
 
    The Company is also seeking to apply its technology and expertise in the
satellite and commercial aerospace industries. Trio Star was formed to develop
structural components using Beralcast and other lightweight materials for
commercial satellite and aerospace applications by combining the engineering and
manufacturing talents of its partners. For these applications, customers seek
components and subassemblies that are fabricated using a combination of
lightweight metals and non-metallic composites. With the anticipated significant
growth in low-Earth-orbit satellite applications, major aerospace corporations
are focusing their internal manufacturing resources on the assembly of major
component subsystems and outsourcing the manufacturing of the individual
components and subassemblies. Teledesic LLC ("Teledesic"), in conjunction with
its manufacturing partner, The Boeing Company ("Boeing"), has begun the
development of a network of 300 low-Earth-orbit satellites to provide global,
broadband, high-speed data and video communications worldwide. Trio Star has
submitted a proposal to the Boeing/Teledesic team to manufacture certain
structural components for these satellites. If the contract is awarded to Trio
Star, pre-production would be expected to commence in 1999, with full-scale
production expected in 2000. Trio Star also expects to bid on subassemblies for
other commercial satellite programs.
 
    The Company believes that Beralcast's light weight, stiffness and design
flexibility as compared to titanium and other competing materials also make it
an ideal material for premium golf club heads and shafts. Beralcast club heads
offer the potential of having a larger "sweet spot" and better mass
distribution, thereby increasing performance, and the Company is exploring
opportunities to introduce Beralcast alloys into extruded seamless tubing for
premium golf shaft applications requiring increased stiffness.
 
AVLIS AND UF(6) CONVERSION
 
    The Company supplies DU and NU feedstock to USEC's AVLIS program for
laser-enrichment into nuclear reactor fuel. USEC is a government-owned global
energy company created by the U.S. Congress in 1992 to operate the DoE uranium
enrichment program. Uranium enrichment is an essential step in transforming NU
into nuclear fuel, which is used by nuclear power plants to produce electric
power. Two technologies are currently used to enrich uranium for commercial
nuclear power plants, gaseous diffusion and gas centrifuge. USEC currently uses
gaseous diffusion as its primary method for enriching uranium and is investing
in AVLIS, a next-generation, laser-based enrichment process. USEC expects that
AVLIS will replace the current gaseous diffusion process beginning in 2005. The
principal advantage of AVLIS over the current gaseous diffusion process is that
it consumes significantly less electric power. Based upon engineering studies
and demonstrated systems performance, USEC expects that a fully deployed AVLIS
facility will use only about five percent of the electric power currently used
by gaseous diffusion plants. According to USEC, electric power represents about
60 percent of the cost of operating gaseous diffusion plants.
 
    Current methods for enrichment of uranium for use as a nuclear fuel generate
depleted UF(6). USEC's predecessors, including DoE, have been enriching uranium
for defense and commercial nuclear fuel
 
                                       40
<PAGE>
purposes since the 1940s. Over the years, DoE has stockpiled over 1 billion
pounds of depleted UF(6) in steel cylinders at three uranium enrichment sites.
Since USEC continues to enrich uranium for commercial nuclear power customers in
the United States and abroad, approximately 2,500 cylinders are added to this
inventory each year.
 
    The Company believes that the large stockpile of depleted UF(6) cylinders
will have to be reprocessed and will not be allowed to continue to be stored.
DoE is currently considering several alternatives for the long-term management
of depleted UF(6). Of these alternatives, DoE's preferred solution is to convert
its depleted UF(6) inventory into DU oxide and/or DU metal. DoE has estimated
the cost for such disposition in the $3 billion range. USEC is in the process of
privatizing, and following its privatization, USEC will no longer be permitted
to store depleted UF(6) produced as a result of its uranium enrichment process
as DoE has done. Rather, USEC will be required to dispose of it or use it.
 
    Starmet believes that USEC's privatization and the aging DoE depleted UF(6)
stockpile will create opportunities for the Company's processing and conversion
technology. Starmet has developed an expertise in processing and converting
UF(6) and its derivative UF(4) into several uranium metal and uranium oxide
products and owns and operates the only production facility in North America
capable of this process. The Company believes its ability to convert UF(6) and
UF(4) into useful products, such as AVLIS feedstock and DUCRETE shielding, will
permit useful recycling of depleted UF(6). Conversion of depleted UF(6) can
generate fluorine or fluorine compounds such as hydrogen fluoride which have
economic uses, thus rendering the conversion process more economically
attractive. The Company has filed applications for three patents on new
processes which it believes can be advantageously employed in the conversion of
UF(6) into performance fluorine products and a variety of other products.
According to DoE, conversion of depleted UF(6) would begin as early as
practicable and could begin as soon as 2005. The Company believes that its new
processing and conversion technology could accelerate the DoE's conversion
program due to the increased economic benefits which could result from the
production of performance fluorine products.
 
STRATEGY
 
    The Company's strategy is to grow revenues and profits by exploiting its
materials expertise to manufacture products for currently identified markets and
develop new applications for its technologies. Specific components of the
Company's strategy include:
 
    APPLY TECHNOLOGICAL EXPERTISE TO COMMERCIAL APPLICATIONS.  The Company
intends to continue to capitalize on its metallurgical, materials science and
manufacturing expertise, developed primarily for military applications, in order
to introduce new products for what the Company believes are high-growth
opportunities in large commercial markets. In these efforts, the Company will
apply its skills in materials development, investment casting difficult alloys,
manipulating and forming complex components, and manufacturing, processing and
recycling certain advanced materials. An example is the development of the
Company's Beralcast technology which the Company is applying to various
applications in commercial and aerospace markets.
 
    DEVELOP NEW PRODUCTS AND MARKETS THROUGH CONTINUED RESEARCH AND
DEVELOPMENT.  The Company intends to continue to focus its own and customer
funded research and development efforts on technological innovation designed to
yield sophisticated, high-performance commercial products, materials and
services. The Company intends to pursue this strategy by maintaining a strong
internal research and development team, continuing its longstanding research
relationships with major government research centers and working closely with
customers. The primary goal of the Company's research and development efforts is
to accelerate commercialization of its materials science technologies by
addressing customer identified applications with significant market potential.
 
    INCREASE MANUFACTURING CAPACITY AND REDUCE MANUFACTURING COSTS.  The Company
intends to leverage its manufacturing expertise by shifting from prototype to
full-scale production in order to meet anticipated
 
                                       41
<PAGE>
customer demands. A substantial portion of the proceeds of the offering will be
used to purchase additional manufacturing equipment, including new furnaces and
automated production equipment, principally for the Company's Beralcast
products. Among the goals of the Company's planned capital expenditure program
are to increase manufacturing capacity, improve manufacturing efficiencies,
enhance product quality and further reduce manufacturing costs.
 
    MAINTAIN FOCUS ON CUSTOMER SATISFACTION.  The Company seeks to continue
providing the highest possible level of customer service and customer
satisfaction. For example, the Company engages in concurrent engineering with
its customers to create value-added, customized products that provide solutions
to specific technical issues. The Company seeks to implement design-to-cost
programs with its customers to lower overall product costs. In addition, the
Company has technical field offices at certain customer sites so that the
Company can cooperate in design optimization and provide technical and sales
support. The Company at its Concord facility is the first small business and one
of only fourteen companies nationwide to qualify for the U.S. Army's highest
quality manufacturing certification, and this facility is also ISO 9002
certified. The Company intends to continue its commitment to high-quality
manufacturing.
 
   
    PURSUE SELECTED COOPERATIVE RELATIONSHIPS.  In order to penetrate new
markets and accelerate its expansion, the Company intends to pursue selected
teaming arrangements, licenses, joint ventures and other cooperative business
relationships. This strategy is designed to leverage the Company's technological
expertise by increasing production capacity for the Company's products without
the Company having to fund all related capital expenditures. This strategy is
further designed to allow Starmet to take advantage of the existing distribution
channels of its current or potential partners. As part of this strategy and to
facilitate such cooperative relationships, in October 1997 the Company completed
an internal reorganization to organize the Company's subsidiaries along
functional business lines. A recent example of this co-development strategy is
Trio Star, a business venture formed by the Company with R-Cubed Composites,
Inc. (a subsidiary of Perstorp AB) and Advanced Product Labs, to jointly market,
develop and supply structural components to the commercial satellite and
aerospace markets.
    
 
CHARACTERISTICS OF BERALCAST
 
    The first beryllium aluminum material commercially produced (called
"Lockalloy") was developed in the 1960s by Lockheed Corporation and NASA as a
replacement for magnesium alloys in certain advanced aircraft structures.
Starmet participated in the early development of Lockalloy as a subcontractor to
Lockheed Corporation. Lockalloy was a light weight material with the equivalent
stiffness of steel. However, Lockalloy was made from pre-alloyed powder, and was
available only in wrought product forms (i.e., extrusions and sheet). Because of
the complex processing and low yield inherent in the production of Lockalloy,
the cost was high, even for a beryllium-based material. The cost and
difficulties in producing the alloy limited it to special applications, and in
the late 1970s Lockalloy was withdrawn from commercial production.
 
    Many of today's advanced systems for aerospace applications require
materials with high stiffness and low weight that maintain dimensional
stability. Traditional materials possessing the desired properties, like pure
beryllium, are often difficult and expensive to fabricate. Common lightweight
metal and composite investment castable materials such as aluminum, titanium,
magnesium and aluminum silicon carbide composite alloys do not offer the
stiffness and light weight which these applications require. Ceramics and
ceramic-matrix composites are mostly restricted to specialized applications due
to low ductility and machining difficulties. Beryllium and beryllium alloys
produced through powder metallurgy meet the criteria of being lightweight and
stiff but are inherently expensive and limited to configurations that can be
machined or hot pressed.
 
    In an effort to eliminate the primary limitations of the powder metallurgy
technology while retaining the benefits of the beryllium aluminum material,
Starmet developed a family of castable beryllium aluminum alloys suited for
production using a proprietary investment casting process. These new alloys,
 
                                       42
<PAGE>
named Beralcast, yield a fine grain homogenous microstructure with attractive
mechanical, physical and thermal properties, which permit economical precision
machining. Beralcast incorporates the best attributes of its component materials
and eliminates many individual shortcomings. Beralcast combines the high
stiffness and low density characteristics of beryllium with the excellent
processing capabilities of aluminum. Certain customers have reported that
Beralcast's combination of properties have provided a weight savings of up to
50% in designs requiring high levels of stiffness by, in addition to straight
density advantages, reducing casting section thickness requirements. Beralcast
can be precision cast to comparable specifications of aluminum. In contrast,
pure beryllium is not investment castable. Due to its homogenous fine grain
microstructure, Beralcast can be fabricated using conventional processes, such
as welding, joining, rolling, extrusion, machining, straightening, finishing and
heat treatment. Until recently, such materials have been available only in a
pre-alloyed powder metal wrought form. In aerospace applications, this
limitation has typically resulted in "buy to fly" ratios of up to 20 to 1, where
the majority of the material used for the part ends up as low value machined
scrap, most of which is not economic to recycle.
 
    Beralcast is a metal matrix composite material. The Company's patented
Beralcast alloys contain approximately 65 weight percent beryllium, 31 weight
percent aluminum and the balance minor alloying additions, including silver,
cobalt, germanium and silicon. These Beralcast compositions, developed for
specific properties and applications, are as follows:
 
        BERALCAST 363: General, high-strength composition used primarily for
    precision cast structural applications.
 
        BERALCAST 191: Moderate strength composition used primarily for cast
    electronic and thermal packaging applications.
 
        BERALCAST 310: Composition used for cast and wrought products. Used
    primarily for select directional high-strength applications.
 
    The Company's patented Beralcast alloys have numerous advantages over other
competing materials and particularly over its primary elemental component
materials, aluminum and beryllium. Utilizing the synergistic effects of an
alloyed metal matrix of the two primary components, Beralcast materials offer a
combination of improvements as shown below, based on analyses by certain
customers and independent testing laboratories.
 
<TABLE>
<CAPTION>
          ADVANTAGES OVER ALUMINUM                     ADVANTAGES OVER BERYLLIUM
- --------------------------------------------  --------------------------------------------
<S>                                           <C>
- - 22% lower density with essentially          - Castable for complex and precise net shape
  equivalent strength of cast aluminum          configurations
- - 3 times higher modulus (stiffness)          - 25% of the raw material input cost
- - 6 to 10 times better in damping             - 3 times greater ductility than hot pressed
  coefficient for stability and jitter          beryllium
  reduction depending upon the resonant
  frequency
- - 2 to 4 times more dimensionally stable      - Reduced scrap generation, machining and
                                                environmental process concerns
- - 30% lower coefficient of thermal expansion  - Weldable for defect repair and structural
                                                joining
</TABLE>
 
    In addition, the Company is producing other proprietary Beralcast alloys
that are extensions of the Company's current Beralcast technologies. The Company
is currently offering these and its patented Beralcast alloys to its customers.
 
                                       43
<PAGE>
    As shown in the table below, Beralcast has a high stiffness to weight ratio
("specific stiffness"), making it an ideal structural material for certain
applications compared to conventional and certain other advanced materials such
as aluminum silicon carbide composites and aluminum boron carbide composites (or
Boralyn-Registered Trademark-).
 
EDGAR REPRESENTATION OF DATA POINTS USED IN PRINTED GRAPHIC
 
<TABLE>
<CAPTION>
  SPECIFIC STIFFNESS - SELECTED MATERIALS
<S>                                           <C>
(Ratio of stiffness to weight in 10(8)
inches)
Conventional Materials
Magnesium (AZ91)                                   0.98
Steel (4131Cr-Mo)                                  1.00
Titanium (6AL-4V)                                  1.01
Aluminum (6061)                                    1.04
Advanced Materials
AlSiC (F3S.ZOs)                                    1.43
Boralyn(Registered Trademark) (A1B4C) (H-15)       1.46
Beralcast(Registered Trademark) (363)              3.83
</TABLE>
 
[Diagram comparing specific stiffness of selected materials to Beralcast
- -Registered Trademark-.]
 
                                       44
<PAGE>
PRODUCTS AND SERVICES
 
SPECIALTY METAL PRODUCTS
 
    Starmet develops and manufactures a range of advanced metal products and
components for commercial and aerospace applications. These products are
manufactured from various metals and alloys, including the Company's Beralcast
beryllium aluminum alloys, pure beryllium, titanium, steel and zirconium.
Beralcast is an investment-castable beryllium aluminum alloy designed for
secondary structural and electronic applications. The Company believes that it
is the technological leader in the development and production of beryllium
aluminum alloys. The Company also manufactures high-quality spherical metal
powders for niche markets which are used in porous adhesion coatings on medical
prostheses and in other products.
 
    DISK DRIVES.  Using Beralcast alloys, disk drive designers have reduced the
thickness of individual arm sets in the disk stack and placed additional disks
within the same volume. This arm set thickness reduction enables manufacturers
to achieve increased storage capacity while maintaining current disk drive
dimensional standards. In addition, the higher vibration damping properties of
Beralcast, which certain customers have determined to be 6 to 10 times greater
than aluminum, significantly increase data retrieval speeds compared to
conventional materials by facilitating higher disk rotational speeds and
reducing arm vibration. Furthermore, Beralcast has lower thermal expansion and
is more dimensionally stable than aluminum, which is critical in certain next
generation disk drive systems which are being developed to incorporate
laser-optical technology. Based in part upon input from customers concerning
performance and component requirements for doubling data storage capacity in
future disk drive applications, the Company believes Beralcast will be a
critical aspect of achieving these goals. The Company has produced prototype and
pre-production Beralcast disk drive arm sets for evaluation by several of the
leading disk drive manufacturers. Among its customers in this market, Quinta
Corporation, a subsidiary of Seagate Technologies, Inc., has informed the
Company that it has selected Beralcast disk drive arm sets for use in its
high-end disk drives utilizing Quinta's next generation laser-optical
technology, known as Optically Assisted Winchester Technology, and that it
anticipates purchasing production levels of Beralcast disk drive arm sets.
Leading disk drive manufacturers have funded research, development, prototype
work and production tooling to support initial production plans. Certain
customers have indicated, subject to various factors, that typical
full-production requirements for their high-end disk drives may eventually
require between 30,000 and 60,000 Beralcast arm sets per week.
 
    MILITARY AEROSPACE.  Beralcast components have been specified for use on
such high performance defense applications as the Comanche. In addition, the
Company has manufactured prototype parts for the F-22, LANTIRN, the PAC-3, the
French Rafael and a number of other advanced design programs. As compared to
various competing materials, including other beryllium aluminum alloys, the
Company has been advised by customers that the Company's Beralcast products
uniquely meet performance requirements for certain demanding applications where
stiffness, vibration damping, lightweight, workability and material uniformity
are critical, including the Comanche program. The Company has developed defense
applications for Beralcast primarily through its work with Lockheed Martin over
the past seven years. The Company has received contracts from Lockheed Martin
for 58 separate Beralcast components to be used in EOSS, the night vision and
target acquisition system on the Comanche helicopter. The EOSS consists of the
night vision, target acquisition, and accessory equipment giving Comanche its
advanced night vision capabilities. The qualities of Beralcast make it optimal
for use in this type of aerospace application because of its light weight,
stiffness and vibration damping characteristics, which are required by the very
sensitive operations of this night vision and laser acquisition system. The U.S.
Army has stated that if it were required to design the EOSS without the benefits
of Beralcast, it would increase costs of the Comanche project by approximately
$300 million.
 
    In addition to its work on Comanche, Starmet was recently advised by
Lockheed Martin that it has received funding to upgrade the night vision system
of the Apache helicopter with its EOSS. The U.S.
 
                                       45
<PAGE>
Army has approved funding a development program, which is managed by the
Sikorsky Aircraft Corp., to investigate building the Comanche main gear
transmission housing with Beralcast. The Company has been advised that Beralcast
is being considered by two aerospace engine manufacturers for applications in
hydraulic and fuel system components for next generation high performance
military engines. Although Starmet expects to provide Beralcast components to
support these programs, it has not received related contracts.
 
    SATELLITES AND COMMERCIAL AEROSPACE.  Since the early 1960s, the Company has
produced bi-metallic transition joints and seamless beryllium tubes for
satellite applications. In addition to continuing to produce these products, the
Company recently formed Trio Star, a joint venture with R-Cubed Composites Inc.
(a subsidiary of Perstorp AB) and Advanced Product Laboratories, to develop
structural components using Beralcast and other lightweight materials for
commercial satellite and aerospace applications. The Company holds an
approximate 44% interest in Trio Star. Trio Star's target launch customer is
Teledesic, which, together with Boeing, is developing a system of 300
low-Earth-orbit satellites to provide global, broadband, high-speed data and
video communications worldwide. The program requirements call for the launch of
satellites over a 3-year period beginning in the year 2000. If Trio Star is
successful in obtaining orders from the Boeing/Teledesic team, revenue is
anticipated to be recognized beginning in 1999. Trio Star is also marketing its
capabilities to other commercial aerospace companies. Applications include
Beralcast structural components and extruded heat pipes for heat dissipation
requirements.
 
    GOLF PRODUCTS.  The Company is pursuing the premium golf products market
where it plans to market Beralcast as a high-end golf products material.
Beralcast is 50% lighter than, and twice as stiff as, titanium and can be
investment cast to a thinner wall thickness than titanium. With these qualities,
engineers can design a lighter club head, permitting additional perimeter
weighting which achieves a larger "sweet spot." The Company has delivered
prototype Beralcast golf club heads to a leading golf club manufacturer that has
completed initial testing and has concluded that the club heads meet performance
requirements. The customer is now in the process of design optimization. The
Company believes that if this design optimization is successful, production of
these golf clubs could commence by 2001. Starmet is also exploring with a
leading golf shaft manufacturer the introduction of extruded Beralcast alloys
for seamless tubing in premium golf club shafts.
 
    POWDERS.  The Company manufactures certain metal powders for niche markets
through its proprietary processes called the Rotating Electrode Process ("REP")
and the Plasma Rotating Electrode Process ("PREP"), which produce spherical
metal particles within a relatively controllable size range, including steel,
titanium alloy and several nickel and cobalt-based alloys generally known in the
industry as specialty powders. Metal powders can be used effectively in a
variety of applications where exacting sizes, shapes and cleanliness are
important. For example, clean cobalt, chrome and titanium powders, made through
PREP, are used in medical implants to effectively bond prosthetic devices to
bone and tissue, and uniform steel powders made through PREP are used in
photocopiers, sophisticated rapid prototyping applications, and magnetic paint
for children's' books, wallpaper, and toys. Management believes the Company's
metal powders offer performance advantages in these markets over competing
powders since they are cleaner, more uniformly spherical and have a higher
percentage of particles within a desired size range from a given amount of raw
material.
 
ADVANCED RECYCLING TECHNOLOGIES AND URANIUM SERVICES
 
    Starmet develops and provides a variety of products and services based upon
its longstanding metallurgical, radiological and chemical know-how, including,
in particular, its expertise in processing and converting UF(6) and its
derivative UF(4) into materials and products that can be utilized in a variety
of specialized applications. Starmet owns and operates the only production
facility in North America capable of converting natural UF(6) and depleted UF(6)
into UF(4). Depleted UF(6) is a low-level radioactive by-product
 
                                       46
<PAGE>
   
of the enrichment of uranium. From UF(4), the Company produces DU and NU metal
which it manufactures into various uranium metal products. The Company's uranium
metal products include DU penetrators used as anti-armor munitions, DU billets
for conversion into tank armor, NU and DU feedstock supplied to USEC's AVLIS
program for laser-based enrichment into nuclear reactor fuel, and industrial and
medical shielding devices. See "Risk Factors--Uncertainties Relating to USEC and
UF(6) Conversion." Starmet also owns and operates the only FAA-approved facility
in the United States licensed to repair DU counterweights, which are used in
various wide-body commercial and military aircraft and which are periodically
required to be refurbished. Within its shielding technology business, the
Company has received exclusive commercial production rights to a patented
shielding product known as DUCRETE shielding, which uses a uranium oxide
aggregate mixed with concrete to form a radiation shielding product. The Company
is exploring with DoE and several commercial customers specific applications for
the use of DUCRETE shielding, including as containment vessels for spent fuel
and other high-level radioactive wastes. In addition, the Company has the
capability to recycle radioactively contaminated steel into storage boxes for
containment of various radioactive wastes and other products.
    
 
    The following diagram depicts the processing of uranium supplied by DoE and
USEC into various products offered by the Company.
 
                                   [DIAGRAM]
 
[Diagram showing conversion of UF(6) into UF(4) and UF(4) into DU Metal products
(ALVIS Feedstock, Penetrators and Tank Armor, Industrial and Medical Shielding
and Aircraft Counterweights) and DU Oxide products (DU Aggregate, DUCRETE
Shielding and Performance Fluorine and Other Chemicals - underdevelopment).]
 
                                       47
<PAGE>
    PENETRATORS AND TANK ARMOR.  DU is a dense, heavy metal that is 67% heavier
than lead. Because of its density and workability, DU is an effective material
for anti-armor munitions, or penetrators, and is used in numerous United States
government and foreign government weapons systems. The U.S. government has
funded and owns a portion of the manufacturing machinery and equipment used by
the Company for producing penetrators. The Company continues to produce
penetrators under a production contract with production scheduled through the
second quarter of fiscal 1999. The Company plans to consolidate its DU
operations at its South Carolina facility. Due to anticipated reduced U.S.
government procurement plans, the Company expects that no revenues will be
derived from DU penetrator operations in after the second quarter of fiscal
1999. The Company will continue, however, under a multi-year contract with
Lockheed Martin Idaho Technologies Corporation ("LMITCO"), to produce DU billets
in support of the Army's tank armor program, which contract is expected to run
through 2001.
 
    AVLIS FEEDSTOCK.  The Company supplies DU and NU alloy material to USEC for
use as AVLIS feedstock. AVLIS, a laser based enrichment process, is expected to
replace the current gaseous diffusion process for producing enriched fuel used
in nuclear reactors, according to USEC. USEC expects full-scale AVLIS production
to commence by 2005. The Company is currently supplying AVLIS feedstock to USEC
under an existing contract and anticipates receiving additional contractual work
from USEC in the summer of 1998. The Company is currently the primary supplier
to USEC of AVLIS feedstock; however, other companies are expected to compete for
future business. See "--Industries and Markets."
 
    COUNTERWEIGHTS.  Starmet operates the only FAA-approved facility in the
United States licensed to repair DU aircraft counterweights. Aircraft
counterweights are used in wide body commercial and certain miliary aircraft,
such as the Boeing 747, DC-10 and L-1011, and are periodically required to be
refurbished. The Company refurbishes DU counterweights for many international
and domestic carriers flying wide body aircraft, and has begun work on certain
military aircraft as well. The Company also has the capability to produce
replacement counterweights.
 
    UF(6) CONVERSION.  Starmet owns and operates the only production facility in
North America capable of converting natural UF(6) and depleted UF(6) into UF(4).
DoE has stockpiled over 1 billion pounds of UF(6) which Starmet believes must
eventually be dispositioned. Additionally, USEC will be generating new depleted
UF(6) following its privatization which it will be required to dispose of or
use. The Company also has patents pending on a new process to recover and
convert the fluorine and related products from UF(4) which is the by-product of
the UF(6) conversion step. The Company believes that such fluorine processing
has the potential to produce a valuable by-product that can be readily sold in
the open market. To date, the Company has not received contracts for UF(6)
conversion from DoE or USEC, other than UF(6) conversion related to production
of AVLIS feedstock for USEC. See "--Industries and Markets."
 
    DUCRETE SHIELDING.  The Company has received exclusive commercial production
rights to a patented shielding product known as DUCRETE shielding, which was
developed by the DoE's Idaho National Engineering Laboratory. DUCRETE uses a
uranium oxide aggregate mixed with concrete to form a stable and economical
shielding for spent fuel and other high-level radioactive waste products.
According to DoE studies, DUCRETE shielding has been shown to have two and
one-half times the shielding capabilities of commercial grade concrete. DUCRETE
shielding containers could serve as shielding for above ground storage of spent
fuel and high-level wastes, providing an economical means of disposing of
stockpiled depleted UF(6), the raw material for the DU oxide aggregate in
DUCRETE shielding. A variety of shielding barriers and structures have been
identified as potential applications for use of DUCRETE shielding. The Company
installed pilot facilities during 1997 to convert DU oxide into high density
DUCRETE shielding aggregate. The Company is actively pursuing a contract with
the DoE for conversion of uranium oxide into DU aggregate for DUCRETE shielding
production. To date, the Company has not received contracts for DUCRETE
shielding products.
 
    RECYCLING AND RECOVERY.  The Company has demonstrated the technical
feasibility of recycling radioactively contaminated steel into storage boxes for
containment of various radioactive wastes at DoE sites.
 
                                       48
<PAGE>
DoE facilities have millions of tons of radioactively contaminated steel in the
form of structural components and various types of processing equipment. In
addition to the DoE facilities, it is estimated that several million tons of
low-level contaminated steel will be generated as a result of decommissioning
the more than 100 currently operating commercial nuclear power plants over the
next 30 years. The Company is exploring with the DoE funding of a potential
contract to develop full-scale reprocessing of contaminated steel.
 
SOURCES OF RAW MATERIALS
 
    Raw materials used by the Company include a number of metals and minerals
used to produce the alloys included in its products and castings, including
beryllium, titanium, aluminum, nickel, cobalt, chromium and molybdenum, among
others. The Company currently purchases beryllium, a metal which is used to form
its Beralcast alloys, principally from a producer-supplier located in Kazakhstan
and from multiple distributors located in Estonia, Kazakhstan, Sweden, the
United States, China and Russia. The Company also purchases scrap beryllium from
domestic and foreign distributors. The only three producers of beryllium
worldwide are located in Kazakhstan, the United States and China. For
competitive reasons, the Company does not procure significant quantities of
beryllium raw materials from Brush Wellman, the sole U.S. producer of beryllium,
which is the Company's principal competitor for beryllium aluminum products and
the plaintiff in the pending Brush Wellman patent lawsuit. The Company believes
that a sufficient supply of beryllium remains available for its current demand.
However, if its Beralcast products receive broad commercial acceptance, the
Company's demand for beryllium will increase. The cost of beryllium could
increase as a result of the Company's increased demand, and supplies of
beryllium could also be affected. Prices of raw materials used by the Company
can be volatile, which could significantly effect their availability and price.
The Company has no long-term, fixed price contracts or arrangements for the raw
materials it purchases. Commercial deposits of certain metals, such as
beryllium, cobalt, nickel, titanium, chromium and molybdenum, that are required
for the alloys used in the Company's precision castings and specialty metal
powders, are found in only a few parts of the world. See "Risk Factors--
Availability and Cost of Beryllium and Other Raw Materials."
 
    The principal raw material for the Company's steel powders is cold-rolled
steel bars, which are readily available. Other metal powders are manufactured to
customer specifications, and the metals for these powders are generally
available for purchase in job lots from specialty metal suppliers.
 
    UF(6), the raw material for DU products, is currently available in abundant
supply from DoE's inventory and from USEC's ongoing operations.
 
RESEARCH AND DEVELOPMENT ACTIVITIES
 
    The Company intends to continue to focus its own and customer funded
research and development efforts on technological innovation designed to yield
sophisticated, high-performance commercial products, materials and services. The
Company intends to pursue this strategy by maintaining a strong internal
research and development team, continuing its longstanding research
relationships with major government research centers and working closely with
customers. The primary goal of the Company's research and development efforts is
to accelerate commercialization of its materials science technology by
addressing customer identified applications with significant market potential.
 
    The Company is involved in research covering a variety of product areas for
applications of Beralcast castings, metal powders, and uranium processing
technologies. Research and development activities in the Company's specialty
metals products business are focused on Beralcast technology. New development
efforts include new casting processes and technologies, extrusion and rolling of
wrought materials, alternate alloy compositions to meet specialized
applications, processes to convert beryllium ore to metal economically, advanced
beryllium and beryllium aluminum recycling technologies, and casting simulation
and solidification modeling to improve product quality and reduce product
development lead times. The
 
                                       49
<PAGE>
focus of research and development activities in the Company's advanced recycling
technologies and uranium services businesses is on advanced casting technologies
for AVLIS feed material, the development of fluorine recovery from UF(6)
conversion, the manufacture of DUCRETE as a means of incorporating depleted
uranium oxide aggregate in a cement matrix to make shielded concrete structures
and recycling processes for radioactively contaminated steel scrap.
 
    The Company participates in certain cooperative research and development
activities through arrangements with selected customers and government agencies
where there is potential for utilizing proprietary technology or specialized
resources not directly available to the Company. Such research and development
activities are funded both by the Company and through customer sponsored
programs. During the past fiscal year, funded research and development has been
sponsored by the DOD, DoE, and various aerospace and commercial customers. This
includes research and development of the use of Beralcast products for the
Comanche program, disk drive applications and other applications. The Company
employs a staff of six Ph.D. technologists with backgrounds in chemistry,
mechanical and metallurgical engineering to conduct research and new product
development. The cost for Company-sponsored research and development activities
was $1,309,000 in fiscal 1997, $876,000 in fiscal 1996, and $439,000 in fiscal
1995. Total revenues from customer-funded research and development were $793,000
in fiscal 1997, $1,812,000 in fiscal 1996 and $557,000 in fiscal 1995.
 
MANUFACTURING AND OPERATIONS
 
    Beralcast is produced using a proprietary investment casting technology. The
alloys are vacuum-induction melted and cast into pre-heated ceramic shells.
Vacuum melting is not required but is preferred because it prevents oxidation
and also serves to de-gas the melt. A typical casting cycle begins with
preparation of the elemental charge materials and alloy additions. The charge is
loaded into the crucible, the furnace chamber is evacuated and power is applied
to melt the charge. The charge is heated and stirred to ensure complete melting
and homogenization. A separate preheated mold chamber is evacuated for the
investment shells. Once the optimal temperatures for the cast alloy and mold
have been achieved, the melting chamber and mold chamber interlocks are opened
and the metal is poured into the ceramic mold. Following the metal pouring, the
chambers are isolated and the mold is control cooled to optimize the alloy
microstructure. Residual material inside the crucible is reheated and poured
into additional ceramic molds once the metal and mold temperatures have been
achieved. Once the casting has cooled sufficiently, the ceramic mold is removed
and the casting is cut from the gating and feed network. The residual gating and
feed materials are recycled back into the casting process. The casting is
subsequently finished by grinding, deburring, straightening, welding and
sandblasting for final inspection. Following inspection, the castings are
delivered to machining facilities for finish machining into the final
configuration.
 
    The investment molds used in the process are produced from a formulation
developed specifically for Beralcast. These molds are fabricated using either
conventional wax patterns or rapid prototype patterns. Pursuant to a teaming
agreement between Starmet and Nu-Cast Inc., a producer of thin-walled,
lightweight aluminum castings, the molds are fabricated in accordance with
Starmet's specifications at Nu-Cast Inc. using a dedicated mold fabrication line
which was installed to support the manufacture of Beralcast investment molds. To
support the future growth of Beralcast, the Company intends to establish ceramic
mold manufacturing capabilities at its Concord facility.
 
    The majority of the Company's activities are conducted at a Company-owned
site in Concord, Massachusetts which comprises approximately 46 acres and
includes a 180,000 square feet building used for manufacturing activities,
offices and warehousing. Beralcast investment castings are currently produced at
the Company's Concord, Massachusetts facility. The Company's current facilities
in Concord, Massachusetts may not be adequate depending upon the demand for
Beralcast products, and possible alternatives sites for additional production
facilities are being explored. The Company plans to consolidate its DU
operations at its South Carolina facility.
 
                                       50
<PAGE>
    The Company owns and operates a facility in Barnwell, South Carolina located
on over 300 acres of land which includes a 109,000 square foot facility housing
two manufacturing units (one unit provides the capability of converting UF(6) to
UF(4) and a second unit houses a reduction process to convert UF(4) to metallic
depleted uranium), a 70,000 square foot facility adjacent to the manufacturing
facility to provide recovery and recycle of DU and other materials, and a
full-scale analytical laboratory.
 
    Due to planned new product and process introductions, principally to support
anticipated large volume Beralcast production, the Company anticipates spending
up to approximately $90 million over the next four years, subject to various
factors, to increase the capacity at the Company's facilities. Specifically, the
Company has embarked upon a multi-year capital expenditure program, under which
it plans to invest approximately $60 million in five phases to expand its
commercial Beralcast manufacturing capabilities to meet anticipated customer
demand through fixed asset additions, including production equipment, such as
casting furnaces, shell lines, wax mold lines, de-waxing lines and finishing
lines, and facility upgrades. The Company intends to fund such capital
expenditures with the proceeds of the offering and cash expected to be generated
from operations. Depending upon the demand for Beralcast products, this program
may be accelerated, delayed or otherwise adjusted. See "Risk Factors--Future
Capital Needs; Uncertainty of Additional Financing" and "Management's Discussion
and Analysis of Financial Condition and Results of Operation--Liquidity and
Capital Resources."
 
    The Company at its Concord facility is the first small business and one of
only fourteen companies nationwide to qualify for the U.S. Army's highest
quality manufacturing certification, and this facility is ISO 9002 certified.
The Company intends to continue its commitment to high quality manufacturing.
 
SALES AND MARKETING
 
    The Company relies on a variety of marketing strategies, including
advertising and direct sales. Technical papers given at industry symposia,
presented by Starmet and in conjunction with customers, are also used as
marketing vehicles for the Company's advanced metal products and services. In
addition, the Company has developed concurrent engineering procedures between
customers, suppliers and Starmet. The benefit of concurrent engineering is to
provide customers cost-effective solutions to product designs which mitigate
technical and scheduling risks. Furthermore, understanding the importance of
design-to-cost principles especially those of a major aerospace firm such as
Lockheed Martin, is essential to supporting the Company's Beralcast customers.
The Company expects concentrated efforts on cost reduction in the form of
concurrent engineering, low cost beryllium metal production, facility expansion,
and other efforts, to enhance its competitive position.
 
    Sales of Beralcast products at present are made directly to manufacturers of
assemblies and systems. In addition, the Company markets its products through a
multi-step process consisting of initial discussions of the products,
highlighting the advantages of beryllium aluminum, an engineering and marketing
evaluation by the prospective customer of sample material and demonstration
products, appropriate agreements allowing the customer to use and market
Beralcast in the relevant application and market and, finally, a production
program where appropriate expenditures are made on tooling, equipment and
quality control necessary to fulfill market requirements. The Company intends to
continue to sell primarily to OEM customers, with distribution from the
Company's manufacturing site to customer facilities.
 
    The Company's sales and marketing organization consists of sales offices in
Concord, Massachusetts, San Jose, California, Washington, DC, Oak Ridge,
Tennessee, Idaho Falls, Idaho, Aiken, South Carolina, Barnwell, South Carolina
and sales representatives in Europe and Japan. The Company's marketing
activities also include the use of applications engineering support
professionals to assist in the development of products for specific customers
and markets, evaluations by institutions that specialize in technology and/or
markets of this type, development of appropriate sales materials such as
specification sheets and corporate brochures, and promotion through appearances
at selected trade shows and selective advertising in journals and the trade
press.
 
                                       51
<PAGE>
    In order to penetrate new markets and accelerate its expansion, the Company
intends to pursue selected teaming arrangements, licenses, joint ventures and
other cooperative relationships. This strategy is designed to leverage the
Company's technological expertise by increasing production capacity for the
Company's products without the Company having to fund all related capital
expenditures and to leverage the existing distribution channels of partners.
 
PATENTS, TRADEMARKS AND LICENSES
 
    The Company's future success depends in substantial part on its proprietary
technology, in particular, Beralcast, the Company's family of beryllium aluminum
alloys. It seeks to protect its interests and competitive position through a
combination of patent protection, confidentiality agreements with key employees,
and restricted access to certain of the Company's critical information.
 
    The Company pursues a diligent patent application program in the United
States and abroad. The Company's holds three U.S. patents on the alloy
compositions for Beralcast materials, which provide patent rights through the
year 2012 and certain Beralcast process details are trade secrets.
 
    The Company holds a U.S. patent relating to developments in REP production
equipment for metal powders, which provide patent rights through the year 2001.
The Company has also filed and effected this patent in certain European
countries, Canada, Israel and Japan.
 
    In addition, the Company has also filed applications for three patents on
new processes which it believes can be advantageously employed in the processing
and conversion of UF(6) into a variety of products, including performance
fluorine chemicals.
 
    The Company has received exclusive commercial production rights to a
patented shielding product known as DUCRETE shielding, which uses a uranium
oxide aggregate mixed with concrete to form a stable radiation shielding
product. DUCRETE shielding was developed and patented by DoE's Idaho National
Engineering Laboratory.
 
    The Company believes that its current and anticipated businesses do not
infringe on any patent owned by others; however, the Company has been sued by
Brush Wellman for alleged infringement of Brush Wellman's investment casting
process patent. There can also be no assurance that the Company's products will
not infringe upon the patent rights of others or that it will not be forced to
expend substantial funds to defend against infringement claims of, or to obtain
licenses from, third parties. See "Risk Factors-- Pending Beralcast Patent
Litigation; Patents and Other Intellectual Property."
 
COMPETITION
 
    The Company faces significant competition from established companies in
certain of its product lines. In addition, the Company's Beralcast alloys and
other products and services face competition from alternative or competing
materials, products, services and technologies. Many of the Company's current
and potential competitors have significantly greater financial, technical,
marketing, purchasing and other resources than the Company, and, as a result,
may be able to respond more quickly to new or emerging technologies or standards
and to changes in customer requirements, or may be able to devote greater
resources to the development, promotion and sale of products, or to deliver
competitive products at lower prices. Increased competition is likely to result
in price reductions, reduced operating margins and loss of market share, any of
which could have a material adverse effect on the Company's business, results of
operation and financial condition. Although the Company believes that it has
certain technological and other advantages over its competitors, realizing and
maintaining these advantages will require continued investment in research and
development, sales and marketing, and customer service and support. There can be
no assurance that the Company will have sufficient resources to continue to make
such investments or that the Company will be successful in maintaining such
advantages. The Company believes that its ability to compete successfully
depends on a number of factors both within and outside of its control
 
                                       52
<PAGE>
including price, product quality, success in developing or otherwise introducing
new products, and general market and economic conditions. See "Risk
Factors--Competition."
 
    The Company competes with Brush Wellman in the production of beryllium
products, specifically beryllium aluminum alloys. Historically, Brush Wellman,
the current sole U.S. producer of beryllium metal, was the dominant supplier of
beryllium and beryllium alloys. With the development of Starmet's Beralcast
alloys, the Company has become the leading producer of investment cast beryllium
aluminum alloys in direct competition with Brush Wellman. The Company and
several of its customers believe that the Company's Beralcast products offer
mechanical and other benefits superior to Brush Wellman's materials. Brush
Wellman has attempted to enter into cross-licensing arrangements with the
Company related to the Company's patented Beralcast alloys, but the Company has
not licensed any of its Beralcast patents to Brush Wellman or any other
companies. See "--Legal Proceedings."
 
    Beralcast investment castings compete directly with aluminum, magnesium,
titanium, aluminum silicon carbide and aluminum boron carbide castings. Use of
Beralcast depends largely on the customer's weight, stiffness, and vibration
damping needs, in combination with a willingness to pay a premium for the
materials' performance benefits.
 
    Key competitive factors in the metal powders market are price and the
ability to meet exact dimensional, metallurgical and other specifications. The
steel powder marketed by the Company for photocopy applications competes with
less expensive powders produced by larger manufacturers.
 
    The Company has historically competed with Aerojet Ordnance, a division of
GenCorp Inc., as one of two domestic DU penetrator manufacturers. Since the
requirements for DU penetrator munitions have declined, the Company believes
that Aerojet Ordnance will attempt to compete with Starmet in the production of
AVLIS feedstock. Although the Company has been the primary supplier of AVLIS
feedstock to USEC, it expects other companies to compete for future USEC
business.
 
SIGNIFICANT CUSTOMERS
 
    A substantial portion of the Company's business is currently conducted with
a relatively small number of large customers. The Company's ten largest
customers accounted for approximately 78% and 83% of the Company's sales in the
fiscal years 1997 and 1996, respectively. While the Company's planned expansion
into new commercial markets may result in a substantial portion of its revenues
being derived from new customers, the dominance of a few companies in certain of
these targeted markets is likely to continue to result in a substantial portion
of the Company's revenues being derived from a small number of significant
customers. The loss of one of its key customers or any significant portion of
orders from any such customers could have a material adverse affect on the
Company's business, results of operation and financial condition. See "Risk
Factors--Concentration of Customers," "Risk Factors--Uncertainties Relating to
USEC" and "Management's Discussion and Analysis of Financial Condition and
Results of Operations--Overview."
 
    Royal Ordnance, a U.K. defense contractor, is a significant customer of the
Company's DU penetrator business. In fiscal 1997, sales to Royal Ordnance
accounted for 19% of sales. The Company currently is under contract to
manufacture penetrator blanks for Royal Ordnance with a completion date of
December 1998. USEC is the only customer of the Company's AVLIS feedstock
material. In fiscal 1997, sales to USEC accounted for 14% of sales. Primex
Technologies is also a significant customer of the Company's DU penetrator
business. In fiscal 1997, sales to Primex Technologies accounted for 12% of
sales. The Company currently is under contract to provide Primex Technologies
with 120mm penetrators for the U.S. Army's ABRAMS Tank program through the
second quarter of fiscal 1999. Lockheed Martin is a significant customer of the
Company's specialty metal products business. In fiscal 1997, sales to Lockheed
Martin accounted for 7% of sales. The Company currently is under several
contracts with Lockheed Martin to provide Beralcast hardware for the Comanche
helicopter program.
 
                                       53
<PAGE>
BACKLOG
 
   
    The following table sets forth certain information with respect to the
Company's backlog at September 30, 1995, 1996 and 1997, and at March 31, 1997
and March 31, 1998 including the portions thereof represented by orders from the
Company's principal customers, Lockheed Martin, LMITCO, Primex Technologies and
USEC. The backlog for the Company is affected by the timing of orders from these
customers. The Company believes all orders in backlog are firm. The following
information is based on the Company's anticipated future business segments.
    
   
<TABLE>
<CAPTION>
                                                                    AT SEPTEMBER 30,              AT MARCH 31,
                                                             -------------------------------  --------------------
<S>                                                          <C>        <C>        <C>        <C>        <C>
                                                               1995       1996       1997       1997       1998
                                                             ---------  ---------  ---------  ---------  ---------
 
<CAPTION>
                                                                                (IN THOUSANDS)
<S>                                                          <C>        <C>        <C>        <C>        <C>
Specialty Metal Products...................................  $   9,749  $  10,532  $   8,098  $   9,256  $   6,747
Advanced Recycling Technologies and Uranium Services.......     20,960     12,712     19,556     17,845     13,682
                                                             ---------  ---------  ---------  ---------  ---------
  Total....................................................     30,709     23,244     27,654     27,101     20,429
                                                             ---------  ---------  ---------  ---------  ---------
                                                             ---------  ---------  ---------  ---------  ---------
</TABLE>
    
 
ENVIRONMENTAL, SAFETY AND REGULATORY MATTERS
 
    Two of the materials regularly processed by the Company, depleted uranium
and beryllium, have characteristics considered to be health or safety hazards by
various federal, state and local regulatory agencies. The processing of these
materials requires a high level of safety consciousness, personnel monitoring
devices and special equipment. Depleted uranium is a low-level radioactive
material, and the Company is subject to government licensing and regulation.
Depleted uranium in the finely divided state, such as grinding dust or machine
turnings, is combustible at room temperature and requires special handling for
safe operations and disposal of process wastes. Airborne beryllium in respirable
form, such as powder, dusts or mists generated in some manufacturing processes
can represent a hazard to the lungs in certain, susceptible individuals.
Processing this material requires use of extensive ventilation and dust
collecting systems. All of these operations are performed under strict
environmental and health safety controls consistent with OSHA and EPA
regulations for pure beryllium. Management believes that the experience gained
in its many years of working with these metals has resulted in capabilities for
dealing effectively with the health and safety concerns associated with these
materials.
 
    The Company is subject to Environmental Laws that (i) govern activities or
operations that may have adverse environmental effects, such as discharges to
air and water, as well as handling and disposal practices for solid and
hazardous wastes, and (ii) impose liability for the costs of cleaning up, and
certain damages resulting from, sites of past spills, disposals or other
releases of hazardous substances and materials, including liability under CERCLA
and similar state statutes for the investigation and remediation of
environmental contamination at properties owned and/or operated by it and at
off-site locations where it has arranged for the disposal of hazardous
substances. In 1997, the Company's licenses at its Concord and South Carolina
facilities were renewed for a period of five years.
 
    If it is determined that the Company is not in compliance with current
Environmental Laws, the Company could be subject to fines and penalties. The
amount of any such fines and penalties could be material. In addition, the
Company uses depleted uranium, beryllium and other hazardous substances, and as
is the case with manufacturers in general, if a release of hazardous substances
occurs on or from the Company's properties or from an off-site disposal
facility, the Company may be held liable and may be required to pay the cost of
remedying the condition. The amount of any such liability could be material.
 
    The Company's facilities have made, and will continue to make, expenditures
to comply with current and future Environmental Laws. The Company anticipates
that it could incur additional capital and operating costs in the future to
comply with existing Environmental Laws and new requirements arising from new or
amended statutes and regulations. In addition, because the applicable regulatory
agencies
 
                                       54
<PAGE>
have not yet promulgated final standards for some existing environmental
programs, the Company cannot at this time reasonably estimate the cost for
compliance with these additional requirements. The amount of any such compliance
costs could be material. The Company cannot predict the impact that future
regulations will impose upon the Company's business.
 
    In the process of manufacturing depleted uranium products, the Company
generates low-level radioactive waste materials that must be disposed of at
sites licensed by federal, state, and local governments. The operation of these
disposal sites is at the discretion of these regulatory entities, which may at
times result in temporary closures and limited access. For this reason, the
Company does not rely upon any one disposal site for its waste, but, rather,
seeks to use all sites available on the basis of user rates and contract terms.
The Company has benefitted recently from a resurgence of competition in the
waste disposal industry where rates are again being driven by market forces. New
disposal sites and options are becoming available to the Company while at the
same time the Company has made significant progress in developing and
instituting technical alternatives to the generation and disposal of its waste.
The Company intends to continue the development of technologies and processes
aimed at the reduction and elimination of waste materials associated with its
manufacturing processes.
 
    For a number of years, ending in 1985, the Company deposited spent acid and
associated depleted uranium waste and other residual materials by neutralizing
them with lime and discharging the neutralized mixture to a holding basin on its
premises in Concord. In 1986, the holding basin was covered with Hypalon, an
impervious material used to prevent rain and surface run-off water from leaching
through the holding basin. The Company now uses a proprietary "closed loop"
process that it developed to discontinue such discharges. The Company believes
that both practices were and are in compliance with all applicable regulations.
The Company is now near completion of the process of removing and disposing of
material in the holding basin. For a discussion of the status of remediation of
the holding basin at the Company's Concord facility, see "--Concord Site
Remediation and Decommissioning Planning Requirements."
 
   
    Over the next eighteen months, the Company expects to spend approximately $3
million for environmental control facilities, including air filtration systems
and dust and particle collection systems.
    
 
CONCORD SITE REMEDIATION AND DECOMMISSIONING PLANNING REQUIREMENTS
 
   
    The Company is required to maintain certain licenses issued by DPH and DHEC
in order to possess and process depleted uranium materials at its facilities in
Concord and South Carolina, respectively. Under applicable licensing regulations
pertaining to D&D at licensed sites, the Company submitted to NRC (the
predecessor of DPH, in this regard) and the applicable state agencies a DFP to
provide for possible future decommissioning of its facilities. The Concord
facility DFP estimated cost is $11.7 million and the South Carolina facility DFP
estimate is $2.9 million. The Company is required to provide financial assurance
for such decommissioning pursuant to applicable regulations. The Company has
satisfied these requirements, and as a result, the site licenses for both
locations have been renewed.
    
 
    Substantially all of the depleted uranium materials to which the DFP
requirements apply were processed by the Company for the United States
government. Based on the terms of certain contracts that the Company entered
into with the United States government to process such depleted uranium
materials, the Company believes that such materials continue to be owned by the
United States government and that the United States government is obligated,
under applicable law, to pay for its percentage of eventual D&D. The Company's
DFP's reflect its position that it is obligated to provide financial assurance
only with respect to the portion of the materials which are attributable to the
Company's commercial production for parties other than the United States
government and that this obligation has been satisfied by a letter of credit to
each geographic location's regulatory agency.
 
   
    The United States Army, in the Memorandum of Decision, pursuant to Public
Law 85-804, agreed that it would fund remediation of the Company's Concord
holding basin site as well as D&D related to that facility, based in part on the
Army's determination that the Company's activities are essential to the
    
 
                                       55
<PAGE>
   
national defense. Subject to funding appropriations, the Army has provided
written assurances of its intention to provide funding for D&D costs at the
Concord facility under future contracts or under an existing contract in the
event that no future contracts are awarded. D&D costs for the Company's South
Carolina facility are covered by the existing letter of credit. The Company has
no assurance that the Army will accept responsibility for the share of the
estimated cost of D&D at its South Carolina facility which directly resulted
from production work under U.S. government contracts on government supplied
materials. However, management believes that the Army is responsible for its
estimated share of D&D.
    
 
   
    The United States Army has issued to the Company a fixed price contract for
remediation of the holding basin and the Company entered into a fixed price
subcontract with Zhagrus Environmental, Inc. ("Zhagrus") to perform this
remediation. The Company's contract with Zhagrus is fixed price based on a
specified volume of waste to be removed from the basin and delivered to a
disposal site. If the volume of the material removed exceeds the specified
level, then the Company is obligated to pay an additional fee per cubic yard of
excess material removed. Based on currently available information, management
believes that the costs to complete remediaton of the holding basin may exceed
the fixed price contract with the United States Army. On May 11, 1998, the
Company was notified by Zhagrus that Zhagrus will incur additional costs in
connection with the disposal of the material from the holding basin as a result
of the need for additional work which must be performed to treat the holding
basin material in order for it to meet conditions for burial imposed by
applicable regulations. Zhagrus has requested that the Company pay it to the
extent of any additional costs which may be incurred by it as a result of such
additional services which may be rendered. The Company has requested that
Zhagrus provide it with further information in order to permit the Company to
determine whether it has any liability to Zhagrus under the subcontract and to
calculate the amount, if any, that the Company may be required to pay to Zhagrus
under the subcontract. The Company intends to request a contract price
modification for allowance of any such additional costs under its contract with
the U.S. Army, although there can be no assurance of the timing and amount, if
any, of any recovery of such costs from the U.S. Army. The Company has notified
Zhagrus of its proposed course of action without admitting that the Company has
any liability for the amount of any such additional costs which may be incurred
by Zhagrus under the subcontract. The Company has not yet been provided with
sufficient information concerning the nature and extent of any additional work
which may be required to allow proper burial of the materials. Accordingly, the
Company is unable to determine whether it is obligated to Zhagrus under the
terms of its subcontract or the potential amount involved. The amount of any
additional costs could be material. While the Company believes that any
additional remediation costs, if not directly reimbursed pursuant to a contract
price modification, would be allowable and recoverable costs through the
Company's overhead structure on government contracts, in the event that the
Company became liable to Zhagrus for any material amount which is not authorized
to be paid by the U.S. Army, such liability could have a material adverse effect
on the Company's business, results of operations and financial condition.
    
 
LEGAL PROCEEDINGS
 
    On December 9, 1997, Brush Wellman filed a patent infringement suit against
the Company in the Massachusetts District Court alleging that the Company is
infringing on the Brush Wellman Patent for the process of investment casting of
beryllium aluminum alloys. Brush Wellman is seeking an injunction against the
Company's alleged patent infringement, monetary damages (including treble
damages) and attorney fees. On March 28, 1998, the PTO granted the Company's
request for re-examination (filed January 22, 1998). In the Request, the Company
contended, among other things, that there was sufficient "prior art" in the
field of investment castings and castings of beryllium aluminum alloys such that
the Brush Wellman Patent should not have been issued. In granting the Request,
the patent examiner agreed that the Company's cited examples of prior art raised
substantial new issues of patentability which were not decided in the prior
examination which led to granting the Brush Wellman Patent. The PTO will
undertake a process of re-examination of the validity of the Brush Wellman
patent that, the Company anticipates, could last for an extended period. There
can be no assurance that the PTO will find the Brush Wellman
 
                                       56
<PAGE>
Patent to be invalid. On January 27, 1998, the Company filed in the
Massachusetts District Court a motion to stay the court case pending the outcome
of the re-examination proceeding. If the Massachusetts District Court were to
grant the motion to stay, the court case would not proceed until the conclusion
of the PTO's re-examination of the Brush Wellman Patent. Although the Company
believes that its motion to stay has merit, no assurance can be given that the
Massachusetts District Court will grant the motion.
 
   
    Even though the Company has been advised by its patent counsel, Iandiorio &
Teska, that Brush Wellman's claims are without merit because the Brush Wellman
Patent is invalid as a matter of law due to "prior art" and due to the Company's
sales of investment cast beryllium aluminum products more than one year prior to
the Brush Wellman Patent application, no assurance can be given as to the
ultimate outcome of the lawsuit. Even if the lawsuit were not to proceed to
trial, the litigation could result in substantial costs to the Company, and an
unfavorable settlement of the lawsuit could place the Company at a competitive
disadvantage. An adverse judgment or settlement could subject the Company to
significant liabilities and expenses (e.g., reasonable royalties, lost profits,
attorneys' fees or trebling of damages for willfulness). An adverse outcome also
could cause the Company to incur substantial costs in redesigning the investment
casting process for its Beralcast products and components. Moreover, there can
be no assurance that redesign alternatives would be available to the Company,
and if available, that any redesign alternative would not place the Company at a
competitive disadvantage. The Company could be required to license the disputed
patent rights from Brush Wellman or to cease using the patented technology. Any
such license, if required, may not be available on terms acceptable or favorable
to the Company, or at all. Any of these results could have a material adverse
effect on the Company's business, financial condition and results of operations.
Even in the event of a successful outcome, the Company may incur significant
legal expenses in its defense. See "Risk Factors--Pending Beralcast Patent
Litigation; Patents and Other Intellectual Property " and "Business--Legal
Proceedings."
    
 
    The Company is named as a Potentially Responsible Party ("PRP") in regard to
the Maxey Flats, Kentucky, Superfund Site. This site was used until 1977 as a
licensed and approved low level radioactive waste disposal site. A committee of
PRP's, including the Company, has submitted a remedial investigation and
feasibility study report to the Environmental Protection Agency. The agreement
signed by the settling parties in July 1995 outlines the responsibilities of all
PRPs and states that the PRPs will undertake the initial remedial phase ("IRP")
of the site remediation at an estimated cost of $60 million. Based upon the
percentage of responsibility allocated to the Company, its liability at this
site is expected to be approximately $80,000 over 10 years.
 
EMPLOYEES
 
   
    As of May 20, 1998, the Company employed 271 employees. Of these employees,
136 were involved in manufacturing, 36 in health and safety, 34 in engineering,
32 in administration, 17 in finance and 16 in sales. No employees are covered by
any collective bargaining agreements. The Company believes that its
relationships with its employees are good.
    
 
                                       57
<PAGE>
                                   MANAGEMENT
 
DIRECTORS AND EXECUTIVE OFFICERS
 
   
    The directors and executive officers of the Company as of May 21, 1998 are
as follows:
    
 
<TABLE>
<CAPTION>
NAME                                                      AGE                     POSITION WITH COMPANY
- ----------------------------------------------------     -----     ----------------------------------------------------
<S>                                                   <C>          <C>
Robert E. Quinn (1).................................          44   President, Chief Executive Officer, Treasurer and
                                                                     Director
George J. Matthews (1)..............................          68   Chairman of the Board of Directors
Wilson B. Tuffin (1)................................          66   Vice Chairman of the Board of Directors
Kenneth A. Smith (2)................................          61   Director
Frank H. Brenton (2)................................          72   Director
William J. Shea (2).................................          50   Director
Kevin R. Raftery....................................          39   President, Starmet Commercial Castings, LLC and
                                                                     Starmet Aerocast, LLC
Douglas F. Grotheer.................................          39   President, Starmet CMI Corporation
William T. Nachtrab.................................          44   Vice President, Engineering & Technology
James M. Spiezio....................................          50   Vice President, Finance & Administration
James H. Scarboro...................................          58   Vice President, Marketing
Frank J. Vumbaco....................................          44   Vice President, Health/Safety & Corporate
                                                                     Communications
Bruce E. Zukauskas..................................          47   Vice President, Operations
</TABLE>
 
- ------------------------
 
(1) Member of Stock Option Committee
 
(2) Member of Audit Committee.
 
    The term of office for each director and executive officer of the Company is
the earlier of one year or until a successor is chosen and qualified. The
executive officers are elected by the directors at their first meeting following
the annual meeting of stockholders. There are no family relationships among the
directors and executive officers.
 
    ROBERT E. QUINN was elected President of the Company on November 30, 1994
and Chief Executive Officer and Treasurer on January 20, 1998. Prior to November
30, 1994, he held the position of Vice President, Sales with the Company for six
years. Mr. Quinn is also a director of the Company. Upon graduation from
college, Mr. Quinn joined the Company as a sales administrator. At age 34, he
became the youngest Vice President in the Company's history. Mr. Quinn is a
graduate of Tufts University and has a Masters of Business Administration from
Babson College. Mr. Quinn is a member of the Massachusetts High Technology
Council, National Defense Industrial Association, Tufts University Alumni
Admissions and sits on the Board of Governors of the Concord Museum.
 
    GEORGE J. MATTHEWS has been Chairman of the Board of Directors since 1972,
when he and his partner, Mr. Wilson B. Tuffin, purchased the Company from
Whittaker Corporation. From November 1994 to January 1998, Mr. Matthews held the
positions of Chief Executive Officer and Treasurer of the Company. Mr. Matthews
currently is Chairman of the Board of Trustees of Northeastern University,
Chairman of the Gorbachev Institute of North America, and Chairman, Globalview
Associates Limited. He is a graduate of Northeastern University's DDA Management
Program majoring in Electrical Engineering. He received his M.S. in Business
Administration at Suffolk University. Mr. Matthews has received honorary degrees
from Ricker College and Northeastern University. He is also the recipient of
several educational, civic and philanthropic honors and awards.
 
    WILSON B. TUFFIN has been Vice Chairman of the Board of Directors since
November 1994. From 1972 when he and his partner, Mr. Matthews, purchased the
Company from Whittaker Corporation, to
 
                                       58
<PAGE>
November 1994, Mr. Tuffin held the positions of President, Chief Executive
Officer and Treasurer of the Company. Mr. Tuffin is an alumnus of the Tufts
University School of Engineering.
 
    KENNETH A. SMITH was elected a member of the Company's Board of Directors in
1985. Dr. Smith has been an Edwin R. Gilliland Professor of Chemical Engineering
at Massachusetts Institute of Technology since 1989 and was the Associate
Provost at MIT from 1980 to 1991. Dr. Smith has done extensive consulting for
major international petroleum and chemical companies and other companies
including E.I. DuPont de Nemours & Co., Inc., Air Products and Chemicals, Inc.,
Qatar General Petroleum Corporation, Arthur D. Little, Inc., Cabot Corporation,
and Stone and Webster Engineering Corp. Dr. Smith received his S.B., S.M., and
ScD. in Chemical Engineering from MIT. He has written over 100 articles in
journals on fluid mechanics, heat and mass transfer, polymer characterization,
desalination, liquified natural gas and biomedical engineering.
 
    FRANK H. BRENTON was elected a member of the Company's Board of Directors in
1986. Mr. Brenton is also a principal of Frank H. Brenton Associates, a business
consulting firm. From 1984 to 1986, Mr. Brenton was Chairman of the board of
directors of Marshall's Incorporated, an off-price retailer and division of
Melville, Inc. He also served as Vice President of Melville Corporation during
that period. Mr. Brenton served as CFO of Mammoth Mart from 1962 to 1975.
 
   
    WILLIAM J. SHEA was elected a member of the Company's Board of Directors in
February 1998. From 1992 to 1997, Mr. Shea served as Vice-Chairman, Chief
Financial Officer and Treasurer of BankBoston, NA. Prior to joining BankBoston,
NA in 1992, Mr. Shea spent 19 years with Coopers & Lybrand, where he was a
Senior Partner and a member of the Firm Council, the partnership's governing
body. Mr. Shea is currently the Chief Executive Officer and a director of View
Tech, Inc., Chairman of the board of directors of Centennial Technologies, Inc.
and serves on the board of directors of Miros, Inc. Mr. Shea received his B.A.
and M.A. in Economics from Northeastern University.
    
 
    KEVIN R. RAFTERY became President of Starmet Commercial Castings, LLC and
Starmet Aerocast, LLC (both subsidiaries of the Company) in October 1997. Prior
to that he was the Manager of the Company's Beralcast business unit. Mr. Raftery
joined the Company in 1976 as a technician working for several project
engineers. He quickly advanced into project engineering becoming the lead
project engineer for several demanding aerospace programs. Mr. Raftery was
promoted to Program Manager in 1994 and Business Unit Manager in 1996. Mr.
Raftery is a recognized expert in casting, extrusion, heat treating, coating,
welding and joining technologies for aerospace specialty metals. During his
twenty year tenure with the Company, Mr. Raftery has authored and co-authored
several technical publications and is a co-inventor of two Beralcast patents.
Mr. Raftery received his B.S. in Mechanical Engineering Technology from the
University of Massachusetts.
 
    DOUGLAS F. GROTHEER became President of Starmet CMI Corporation (a
subsidiary of the Company) in 1997. Prior to this promotion, Mr. Grotheer was
Vice President of Engineering, Programs and Quality for the Company since 1994.
Mr. Grotheer joined the Company as a project engineer directly after graduating
from college in 1980. He was promoted to Manager of Ordnance Programs. Mr.
Grotheer is a recognized expert in uranium metallurgy and processing, as well as
ISO 9002 Quality Systems. Mr. Grotheer received his degree in Materials
Engineering from Rensselaer Polytechnic Institute.
 
    WILLIAM T. NACHTRAB, PH.D. has held the position of Vice President,
Engineering and Technology with the Company since 1997 and Vice President of
Technology since 1994. Dr. Nachtrab is the Company's senior technologist. Dr.
Nachtrab, who joined the Company in 1988, is the author and co-author of
numerous technical and scientific publications and an inventor of four of the
Company's patents. He is a recognized expert in beryllium, titanium, alloy
steels, uranium metallurgy and extrusion and powder metal processing. Before
joining the Company, Dr. Nachtrab was a Senior Member of the Technical Staff of
the GE/RCA Corporation. Prior to that he was a Division Research Engineer for
Lukens Steel Company, a Research Engineer for Lehigh University, and a
Metallurgist for LTV Steel Company. Dr. Nachtrab has a Ph.D. in Metallurgical
and Materials Engineering from Lehigh University.
 
                                       59
<PAGE>
    JAMES M. SPIEZIO has been Vice President, Finance and Administration since
October 1993. Prior to October 1993, he held the position of Corporate
Controller and prior to April 1989, he served as Manager of Business Planning
and Financial Analysis for four years. Before joining the Company, Mr. Spiezio
held positions of increasing responsibility in finance at Pratt & Whitney
Company, United Technologies Inc., and the General Electric Company. Mr. Spiezio
also held the position of President of Starmet CMI Corporation from October 1993
to July 1997. Mr. Spiezio is a graduate of Indiana University School of
Business.
 
    JAMES H. SCARBORO became Vice President in December 1997 and is responsible
for government relations and strategic business development for the Company. Mr.
Scarboro has been with the Company for over five years. Mr. Scarboro was
Assistant Program Manager for the U.S. Army's Tank Main Armament Systems and
Program Manager for the Abrams Tank. Mr. Scarboro is a graduate of Rawlins
College, Ball State University, the U.S. Army Command and General Staff College
and the DOD Systems Management College and retired from the U.S. Army with the
rank of Lieutenant Colonel.
 
    FRANK J. VUMBACO has held the position of Vice President, Health/Safety and
Corporate Communications with the Company since November 1995. Prior to November
1995, he held the position of Vice President, Health/Safety since November 1993.
Prior to November 1993, he was Manager of Health/Safety for over five years.
Before joining the Company in 1980, Mr. Vumbaco served as the Manager of Health,
Safety & Security for National Lead Industries, Albany, NY. He is a director of
the New England Consortium of Radioactive Material Users (NELRAD) and a member
of the Massachusetts Nuclear Incident Advisory Team. Mr. Vumbaco is a graduate
of Siena College and has a Masters in Applied Business Management from Lesley
College.
 
    BRUCE E. ZUKAUSKAS has held the position of Vice President, Operations since
October 1994. Prior to October 1994, he was Quality Manager for over five years.
Before joining the Company, Mr. Zukauskas served as Operations Engineer for
Babcock and Wilcox Tubular Products Group. Mr. Zukauskas is a graduate of the
U.S. Military Academy at West Point and the U.S. Army Command and General Staff
College and received his Masters in Industrial Engineering from the University
of Pittsburgh. Mr. Zukauskas is a Colonel in the U.S. Army, Reserves.
 
DIRECTOR COMPENSATION
 
    Each outside director of the Company receives an annual fee of $15,000 and
is eligible to receive options under the Company's 1995 Directors Option Plan
(the "1995 Directors Plan"). Messrs. Brenton and Smith, the Company's two
non-employee directors during fiscal 1997, were each granted options to purchase
3,000 shares of Common Stock at an exercise price of $15.56 per share in fiscal
1997. During the second fiscal quarter of fiscal 1998, the Company granted to
each of Messrs. Matthews, Tuffin, Smith, Brenton and Shea options to purchase
7,500 shares of Common Stock at an exercise price of $23.67 per share, based on
the market price of the Common Stock at that time. At the same time, the Company
also granted Mr. Quinn (in his capacity as President of the Company) an
incentive stock option to purchase 15,000 shares of Common Stock at the same
exercise price under the Company's 1998 Stock Option Plan.
 
    The Company has entered into a management agreement with Matthews Associates
Limited, a Massachusetts corporation ("MAL"), of which George J. Matthews,
Director and Chairman of the Board of Directors of the Company, is sole owner.
The management agreement is described in the section titled "Employment
Agreements with Certain Officers."
 
    The Company entered into an employment and consulting agreement with Mr.
Tuffin in November 1994, which shall continue in force until February 1999.
Pursuant to such agreement, Mr. Tuffin receives annual compensation of $105,000
for his services as a consultant to the Company. Mr. Tuffin's duties include his
service as a director and Vice Chairman of the Board of Directors of the
Company. During the term of the agreement and for a period of two years after
its expiration, Mr. Tuffin may not compete directly or indirectly with the
Company within the continental United States.
 
                                       60
<PAGE>
COMMITTEES OF THE BOARD OF DIRECTORS
 
    The Board of Directors has an Audit Committee which is reconstituted at the
first meeting of the Board following the annual meeting of stockholders. The
Audit Committee, which met two times during fiscal 1997, meets with the
Company's independent auditors and principal financial personnel to review the
scope and results of the annual audit and the Company's financial reports. The
Audit Committee also reviews the scope of audit and non-audit services performed
by the independent public accountants, and reviews the adequacy and
effectiveness of internal accounting controls. The present members of the Audit
Committee are Messrs. Brenton, Smith and Shea.
 
    The Board of Directors has a Stock Option Committee which was formed during
fiscal 1997. The Stock Option Committee, which met once during fiscal 1997,
recommends to the Board of Directors for its approval the terms, amounts and
recipients of stock options under the Company's stock option plans. The present
members of the Stock Option Committee are Messrs. Matthews, Tuffin and Quinn.
 
    The Board of Directors does not have standing committees on compensation or
nominations.
 
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
    During fiscal 1997, the Board of Directors of the Company was responsible
for establishing executive compensation (other than stock option compensation).
Messrs. Quinn and Matthews participated in deliberations of the Company's Board
of Directors concerning executive officer compensation. Neither participated in
setting his own compensation. No executive officer of the Company served as a
director or member of a compensation committee, or its equivalent, of another
entity, one of whose executive officers served as a director of the Company.
 
                                       61
<PAGE>
EXECUTIVE COMPENSATION
 
    The following table and notes present the compensation provided by the
Company during the last three fiscal years for its Chief Executive Officer and
for the four most highly compensated executive officers of the Company, other
than the Chief Executive Officer, whose total compensation exceeded $100,000 for
fiscal 1997 (collectively, the "Named Executive Officers"):
<TABLE>
<CAPTION>
                                                                                                   LONG TERM COMPENSATION
                                                                                           ---------------------------------------
                                                            ANNUAL COMPENSATION                      AWARDS
                                                  ---------------------------------------  --------------------------    PAYOUTS
                                                                                OTHER      RESTRICTED    SECURITIES    -----------
                                                                               ANNUAL         STOCK      UNDERLYING       LTIP
             NAME AND                                                          COMPEN-      AWARD(S)      OPTIONS/       PAYOUTS
        PRINCIPAL POSITION             YEAR(1)    SALARY ($)    BONUS($)    SATION($)(2)        $        SARS (#)(3)        $
        ------------------           -----------  -----------  -----------  -------------  -----------  -------------  -----------
<S>                                  <C>          <C>          <C>          <C>            <C>          <C>            <C>
George J. Matthews.................        1997      350,000       --            --            --            --            --
  Chairman of Board of Directors,          1996      350,000       --            --            --            --            --
  CEO and Treasurer (4) (5)                1995      350,000       --            --            --            20,000        --
Robert E. Quinn....................        1997      200,000       15,000        --            --            25,000        --
  President (5)(6)                         1996      173,769       --            --            --            20,000        --
                                           1995      151,673          200        35,000        --            60,000        --
James M. Spiezio...................        1997      131,616       13,250        --            --             8,000        --
  Vice President, Finance &                1996      121,058       --            --            --            10,000        --
  Administration                           1995      113,270       10,930        --            --            12,000        --
William T. Nachtrab................        1997      131,616        9,050        --            --             8,000        --
  Vice President, Engineering and          1996      114,849       --            --            --            --            --
  Technology                               1995      108,703       10,830        --            --            12,000        --
Douglas F. Grotheer................        1997      121,934        6,700        --            --             5,000        --
  President, Starmet CMI                   1996      100,252       --            --            --            --            --
  Corporation                              1995       95,002       10,830        --            --             5,000        --
 
<CAPTION>
 
                                         ALL
                                        OTHER
             NAME AND                  COMPEN-
        PRINCIPAL POSITION            SATION($)
        ------------------           -----------
<S>                                  <C>
George J. Matthews.................      --
  Chairman of Board of Directors,        --
  CEO and Treasurer (4) (5)              --
Robert E. Quinn....................      --
  President (5)(6)                       --
                                         --
James M. Spiezio...................      --
  Vice President, Finance &              --
  Administration                         --
William T. Nachtrab................      --
  Vice President, Engineering and        --
  Technology                             --
Douglas F. Grotheer................      --
  President, Starmet CMI                 --
  Corporation                            --
</TABLE>
 
- ------------------------
 
(1) The Company's fiscal year ends on September 30 of each year.
 
(2) Excludes perquisites in amounts less than the threshold level required for
    reporting.
 
(3) Options have been adjusted to reflect Company's two-for-one stock dividend
    paid on April 7, 1997.
 
   
(4) Mr. Matthews is a consultant to the Company pursuant to a management
    agreement between Matthews Associates Limited and the Company. His
    compensation (as reflected in the above table) for fiscal 1997 was
    determined pursuant to such management agreement. All compensation under the
    agreement is paid by the Company to Matthews Associates Limited. See
    "Employment Agreements with Certain Officers."
    
 
(5) On January 20, 1998, Mr. Matthews resigned as Chief Executive Officer and
    Treasurer of the Company and the Company elected Mr. Quinn as Chief
    Executive Officer and Treasurer.
 
   
(6) Mr. Quinn's compensation for fiscal 1997 was determined pursuant to his
    employment agreement. See "Employment Agreements with Certain Officers."
    
 
EMPLOYMENT AGREEMENTS WITH CERTAIN OFFICERS
 
    EMPLOYMENT AGREEMENT WITH MR. QUINN
 
    In October 1997, the Company entered into an amended employment agreement
with Mr. Quinn. Pursuant to the agreement, Mr. Quinn will receive initial
compensation at the annual rate of $200,000, subject to such annual increases
and bonuses as the Board of Directors may from time to time determine. The
agreement shall continue in force until February 28, 2002, unless terminated by
either party in accordance with its terms, and is subject to annual renewals as
described in the agreement. During the term of the agreement and for a period of
two years after its expiration, or after the termination of Mr. Quinn's
employment with the Company, whichever occurs later, Mr. Quinn may not compete
directly or indirectly with the Company within the continental United States.
The Company shall require any successor to a majority of the Company's business
activities to assume its obligations under this agreement.
 
                                       62
<PAGE>
    EMPLOYMENT AGREEMENTS WITH MESSRS. SPIEZIO, NACHTRAB, GROTHEER AND RAFTERY
 
    In October 1997, the Company entered into employment agreements with Messrs.
Spiezio, Nachtrab, Grotheer and Raftery (each an "Executive"). Under the terms
of their respective agreements, Messrs. Spiezio, Nachtrab, Grotheer and Raftery
are entitled to an annual base salary of $142,000, $136,000, $135,000, and
$100,000, respectively, subject to such annual increases and bonuses as the
Board of Directors may from time to time determine. Each of the agreements shall
continue in force for an initial period of three years, unless such agreement is
terminated by the Company or the Executive in accordance with its terms.
Annually, the Board of Directors, in its discretion, may extend the term of each
agreement for an additional year. During the term of each agreement and for a
period of eighteen months after any termination of employment, each Executive
may neither compete directly or indirectly with the Company within the
continental United States nor solicit any of the Company's customers or
employees. Each of the agreements may be terminated by the Company prior to a
change in control (as defined in the agreements) and upon twelve months written
notice.
 
    MANAGEMENT AGREEMENT WITH MATTHEWS ASSOCIATES LIMITED
 
    The Company has entered into a management agreement with Matthews Associates
Limited, a Massachusetts corporation ("MAL"), of which George J. Matthews,
Director and Chairman of the Board of Directors of the Company, is sole owner.
The agreement provides MAL with a minimum compensation of $350,000 per annum for
services performed under the agreement, including financial management advice,
representation of the Company before government regulatory bodies, Mr. Matthews'
service on the Board and such other duties as assigned by the Board of
Directors. The agreement expires on February 28, 2002, subject to annual
renewals as described in the agreement. In the event of termination of MAL by
the Company, the Company is obligated to pay to MAL all of the amounts due under
the agreement for the remaining term.
 
PENSION PLAN
 
    The following table sets forth the aggregate annual benefit payable upon
retirement at normal retirement age for each level of remuneration specified at
the listed years of service.
 
<TABLE>
<CAPTION>
                                                                            YEARS OF SERVICE
                    ANNUAL REMUNERATION                       --------------------------------------------
                    PRIOR TO RETIREMENT                          15         20         25      30 OR MORE
- ------------------------------------------------------------  ---------  ---------  ---------  -----------
<S>                                                           <C>        <C>        <C>        <C>
up to $100,000..............................................     23,520     31,360     39,220      47,040
100,001--150,000............................................     38,520     51,360     64,200      77,040
150,001--200,000............................................     53,520     71,360     89,200     107,040
200,001--300,000............................................     83,520    111,360    139,200     167,040
300,001--400,000............................................    113,520    151,360    189,200     227,040
400,000--500,000............................................    143,520    191,360    239,200     287,040
</TABLE>
 
    The Company has a defined benefit plan (the "Pension Plan") designed to
provide retirement benefits for employees and ancillary benefits to their
beneficiaries, joint annuitants and spouses. All employees of the Company become
participants in the Pension Plan after attaining the later of age 21 or one year
of service with the Company. The Pension Plan provides retirement benefits based
on years of service and compensation. An employee's benefits under the Pension
Plan generally become fully vested after five years of service. At normal
retirement (the later of age 65 and five years of Pension Plan participation),
participants are entitled to a monthly benefit for the remainder of their life
in an amount equal to one-twelfth of the sum of their "Annual Credits" for their
last 30 years or lesser period of employment with the Company and its
predecessors. An employee's "Annual Credit" is 1.25% of the portion of his
annual compensation that is subject to Social Security tax and two percent (2%)
of the balance of his annual compensation. Participants with five years of
service are entitled to retirement at age 55, but the monthly
 
                                       63
<PAGE>
benefit payable under the Pension Plan is reduced by 0.5% for each month that
early retirement precedes normal retirement but not to less than $100 per month
if the Participant has ten or more years of service. The surviving spouse of a
retiree under the Plan is entitled to receive benefits equal to one-half the
amount the retiree had been receiving. Alternative benefit payments that are
equivalent to the benefit described above are also available to participants.
Benefits payable under the plan are not reduced by Social Security payments to
the retiree. Amounts shown assume benefits commence at age 65. Benefit amounts
shown are straight-life annuities. The executive officers named in the Summary
Compensation Table have the following years of credited service for pension plan
purposes: Robert E. Quinn-21 years; James M. Spiezio-11 years; William T.
Nachtrab-7 years; and Douglas F. Grotheer-17 years. Mr. Matthews does not
participate in the Pension Plan.
 
OPTION GRANTS IN LAST FISCAL YEAR
 
    The following table sets forth certain information regarding options granted
during fiscal 1997 by the Company to the Named Executive Officers:
 
<TABLE>
<CAPTION>
                                                                        INDIVIDUAL GRANTS
                                         --------------------------------------------------------------------------------
                                                         PERCENT                                  POTENTIAL REALIZABLE
                                                        OF TOTAL                                    VALUE AT ASSUMED
                                          NUMBER OF      OPTIONS                                  ANNUAL RATES OF STOCK
                                         SECURITIES    GRANTED TO                                PRICE APPRECIATION FOR
                                         UNDERLYING   EMPLOYEES IN   EXERCISE OR                     OPTION TERM(3)
                                           OPTIONS       FISCAL      BASE PRICE    EXPIRATION   -------------------------
NAME                                     GRANTED (#)    YEAR (1)     ($/SHARE)(2)     DATE          5%($)        10%($)
- ---------------------------------------  -----------  -------------  -----------  ------------  -------------  ----------
<S>                                      <C>          <C>            <C>          <C>           <C>            <C>
George J. Matthews.....................      --            --            --            --            --            --
 
Robert E. Quinn........................   15,000(4)                   $  15.563       8/5/2007   $   146,812   $  372,051
                                          10,000(5)         20.8%         7.38      11/19/2006        46,412      117,618
 
James M. Spiezio.......................    4,000(4)                      15.563       8/5/2007        39,150       99,214
                                           4,000(5)          6.7%         7.38      11/19/2006        18,565       47,047
 
William T. Nachtrab....................    4,000(4)                      15.563       8/5/2007        39,150       99,214
                                           4,000(5)          6.7%         7.38      11/19/2006        18,565       47,047
 
Douglas F. Grotheer....................    3,000(4)                      15.563       8/5/2007        29,362       74,410
                                           2,000(5)          4.2%         7.38      11/19/2006         9,282       23,524
</TABLE>
 
- ------------------------
 
(1) Percentage is total percentage of all options granted to employee in fiscal
    1997.
 
(2) The exercise price per share was based on the market price of the underlying
    Common Stock on the date of grant. The exercise price reflects the
    two-for-one stock dividend paid on April 7, 1997.
 
(3) Amounts represent hypothetical gains that could be achieved for the
    respective options if exercised at the end of the option term. These gains
    are based upon assumed rates of share price appreciation set by the
    Securities and Exchange Commission of five percent and ten percent
    compounded annually from the date the respective options were granted to
    their expiration date. The gains shown are net of the option exercise price,
    but do not include deductions for taxes of the options exercise price or
    other expenses associated with the exercise. Actual gains, if any, are
    dependent on the performance of the Common Stock and the date on which the
    option is exercised. There can be no assurance that the amounts reflected
    will be achieved.
 
(4) These options will vest in three equal annual installments on August 5,
    1998, 1999 and 2000.
 
(5) These options will vest in three equal annual installments on November 19,
    1997, 1998 and 1999. The number of shares has been adjusted to reflect the
    Company's two-for-one stock dividend paid on April 7, 1997.
 
                                       64
<PAGE>
AGGREGATED OPTIONS EXERCISED IN LAST FISCAL YEAR AND FISCAL YEAR-END OPTION
  VALUES
 
    The following table sets forth certain information concerning options
exercised during fiscal 1997 by the Named Executive Officers, as well as the
aggregate value of unexercised options held by such executive officers on
September 30, 1997. The Company has no outstanding stock appreciation rights,
either freestanding or in tandem with options.
<TABLE>
<CAPTION>
                                                                                                            VALUE OF
                                                                                                           UNEXERCISED
                                                                                                           IN-THE-MONEY
                                                                                  NUMBER OF SECURITIES        OPTIONS
                                                                                 UNDERLYING UNEXERCISED        AT
                                                SHARES                           OPTIONS AT FY-END (#)      FY-END(2)
                                              ACQUIRED ON          VALUE       --------------------------  -----------
NAME                                           EXERCISE         REALIZED(1)    EXERCISABLE  UNEXERCISABLE  EXERCISABLE
- -----------------------------------------  -----------------  ---------------  -----------  -------------  -----------
<S>                                        <C>                <C>              <C>          <C>            <C>
George J. Matthews.......................              0         $       0         13,334         6,666     $ 148,274
Robert E. Quinn..........................              0                 0         46,667        58,333       509,003
James M. Spiezio.........................              0                 0         16,333        18,667       193,679
William T. Nachtrab......................              0                 0         13,000        12,000       157,449
Douglas F. Grotheer......................              0                 0          8,334         6,666        83,324
 
<CAPTION>
 
NAME                                       UNEXERCISABLE
- -----------------------------------------  -------------
<S>                                        <C>
George J. Matthews.......................   $    74,126
Robert E. Quinn..........................       487,202
James M. Spiezio.........................       162,599
William T. Nachtrab......................        90,129
Douglas F. Grotheer......................        43,327
</TABLE>
 
- ------------------------
 
(1) Value realized equals fair market value on the date of exercise, less the
    exercise price, times the number of shares acquired, without deducting taxes
    or commissions paid by employee.
 
(2) Value of unexercised options equals fair market value of the shares
    underlying in-the-money options on September 30, 1997 (closing price of
    Common Stock on September 30, 1997 was $17.25 per share), less the exercise
    price, times the number of options outstanding. All such options were "in
    the money" as of September 30, 1997.
 
STOCK OPTION PLANS
 
    1998 STOCK PLAN
 
    On February 20, 1998, the Board of Directors adopted the Company's 1998
Stock Plan (the "1998 Stock Plan") and the 1998 Stock Plan was approved by the
Company's stockholders at a meeting on March 18, 1998. The Company has reserved
300,000 shares of Common Stock for issuance under the 1998 Stock Plan to
employees, officers, directors and consultants of the Company. The Board of
Directors believes that the use of long-term stock incentives is the most
effective tool to motivate and retain key management, other employees,
non-employee directors and consultants of the Company and to provide such
persons with an additional incentive to promote the long-term interests and
financial success of the Company. The purpose of the 1998 Stock Plan is to
benefit the Company through the retention and motivation of its employees by
offering such individuals an opportunity to become owners of the Common Stock of
the Company with an additional incentive to advance the best interests of the
Company by increasing their proprietary interest in the success of the Company.
Accordingly, on March 18, 1998 the Company granted options to purchase 200,000
shares of Common Stock at an exercise price of $23.67 per share, based on the
market price of the Common Stock at that time, under the 1998 Stock Plan, of
which 65,000 were granted to certain Company officers. The remaining options to
purchase were distributed to all of the full-time employees of the Company.
 
    The 1998 Stock Plan provides for the granting of incentive stock options
("ISOs") which are intended to meet the requirements of Section 422 of the
Internal Revenue Code of 1986, as amended (the "Code"), the granting of
non-qualified stock options ("Non-Qualified Options") which do not meet the
requirements of Section 422 of the Code, opportunities to make direct purchases
of the Company's Common Stock ("Purchase Rights") and the making of awards of
the Company's Common Stock ("Awards"). If any unexercised option granted
pursuant to the 1998 Stock Plan lapses or terminates for any reason, the shares
of Common Stock covered thereby are again available for subsequent option grants
under the 1998 Stock Plan.
 
                                       65
<PAGE>
    The 1998 Stock Plan will be administered by the Board of Directors. The
Board of Directors may delegate any or all of its powers under the 1998 Stock
Plan to a committee appointed by the Board of Directors. Subject to the terms of
the 1998 Stock Plan, the Board of Directors determines the recipients to whom
options will be granted, the number of shares to be covered by such options and
the terms of such options.
 
    The Board of Directors may, at its discretion, select any eligible person to
participate in the 1998 Stock Plan. Non-Qualified Options and Purchase Rights
may be granted, and Awards may be made, to any director, officer, employee or
consultant of the Company. Only employees of the Company are eligible to receive
ISOs. The number of options granted to any eligible person is within the
discretion of the Board of Directors, subject to certain conditions concerning
ISOs.
 
   
    The aggregate fair market value (determined at the time of grant) of shares
issuable pursuant to ISOs which first become exercisable in any calendar year by
an employee may not exceed $100,000. ISOs may not be granted at less than the
fair market value of the Common Stock on the date of grant or 110% of fair
market value in the case of ISOs granted to any optionee holding 10% or more of
the total combined voting power of all classes of stock of the Company. On May
21, 1998, the last reported sale price for the Company's Common Stock on the
Nasdaq National Market was $29.25 per share. In addition, no ISO is exercisable
after 10 years from the date on which it is granted, and in the case of ISOs
granted to an employee holding 10% or more of the total combined voting power of
all classes of stock of the Company, the term shall not exceed 5 years from the
date of grant.
    
 
    Options issued under the 1998 Stock Plan are exercisable only by the
optionee during the life of the optionee and, generally, are not transferable,
except by will or the laws of descent and distribution or as determined by the
Board of Directors. The Board of Directors shall determine the period of time
during which an optionee may exercise an option following the termination of
employment or service to the Company subject to certain restrictions set forth
below with respect to ISOs. ISOs are generally only exercisable while an
optionee is employed by the Company, except that the Board of Directors may
determine to permit exercise within up to three months after termination of
employment to the extent such option has vested at the time of such termination.
If an optionee dies while employed by the Company or within three months of the
termination of his or her employment by the Company, such optionee's ISOs may be
exercised up to twelve months after his or her death. If an optionee is
permanently disabled during his or her employment by the Company, such
optionee's options may be exercised up to one year following termination of his
or her employment due to such disability.
 
    The exercise price of options granted under the 1998 Stock Plan is
determined by the Board of Directors on the date of grant, subject to the
limitation that the exercise price may not be less than par value. However,
there are certain pricing restrictions for ISOs as set forth above. The exercise
price of options granted under the 1998 Stock Plan must be paid in full upon
exercise in cash, by delivery of shares of Common Stock already owned by the
optionee, through the delivery of an assignment to the Company of a sufficient
amount of the proceeds from the sale of the Common Stock acquired upon exercise
of the option, by any other means the Board of Directors deems acceptable, or a
combination thereof.
 
    The Board of Directors may terminate, modify or amend the 1998 Stock Plan
except that no amendment or modification for which stockholder approval is
required under Section 422 of the Code is permissible without the approval of
the stockholders of the Company. With respect to ISOs, the 1998 Stock Plan shall
terminate on the earlier of (i) February 19, 2008 or (ii) the date on which all
shares available for issuance under the 1998 Stock Plan have been issued
pursuant to the exercise or cancellation of options granted under the 1998 Stock
Plan.
 
    1995 DIRECTORS OPTION PLAN
 
    Non-management members of the Board of Directors of the Company and its
subsidiaries participate in the Company's 1995 Directors Plan, which was adopted
to promote the interests of the Company and its
 
                                       66
<PAGE>
stockholders in strengthening the Company's ability to attract and retain
experienced and knowledgeable non-management directors by enhancing their
incentive to work on behalf of the Company and its stockholders and to encourage
them to acquire an increased proprietary interest in the Company.
 
    The Company has reserved 70,000 shares of Common Stock for issuance under
the 1995 Directors Plan to the Company's non-management directors. All options
granted under the 1995 Directors Plan shall be Non-Qualified Options and have an
exercise price equal to the closing price of the Company's Common Stock on the
day prior to the date of option grant. The 1995 Directors Plan shall expire on
November 20, 2000.
 
    The Company has granted options to purchase 43,500 shares of Common Stock
under the 1995 Directors Plan.
 
    1990 EMPLOYEE, NON-QUALIFIED AND DIRECTORS OPTION PLANS
 
    The Company has a 1990 amended and restated employee stock option plan for
the granting of ISOs to employees, a 1990 amended non-qualified option plan for
the granting of Non-Qualified Options to certain key employees and a 1990
directors plan for the granting of Non-Qualified Options to the Company's
directors. No additional options will be granted under these plans; however,
351,420 options are outstanding under these plans, of which 195,061 are
currently exercisable.
 
LIMITATION OF LIABILITY AND INDEMNIFICATION MATTERS
 
    Section 67 of Chapter 156B of the Massachusetts General Laws ("Section 67")
provides that a corporation may indemnify its directors and officers to the
extent specified in or authorized by (i) the articles of organization, (ii) a
by-law adopted by the stockholders, or (iii) a vote adopted by the holders of a
majority of the shares of stock entitled to vote on the election of directors.
In all instances, the extent to which a corporation provides indemnification to
its directors and officers under Section 67 is optional. Article 6 of the
Company's Amended and Restated Articles of Organization provides that the
Company shall indemnify directors and officers of the Company against
liabilities and expenses arising out of legal proceedings brought against them
by reason of their status as directors and officers or by reason of their
agreeing to serve, at the request of the Company, as a director or officer with
another organization. Under this provision, a director or officer of the Company
shall be indemnified by the Company for all costs and expenses (including
attorneys' fees), judgments, liabilities, and amounts paid in settlement of such
proceedings, even if he is not successful on the merits, if he acted in good
faith in the reasonable belief that his or her action was in the best interests
of the Company. The Board of Directors may authorize advancing litigation
expenses to a director or officer at his request upon receipt of an undertaking
by any such director or officer to repay such expenses if it is ultimately
determined that he is not entitled to indemnification for such expenses.
 
    Article 6 of the Company's Articles of Organization eliminates the personal
liability of the Company's directors to the Company or its stockholders for
monetary damages for breach of a director's fiduciary duty, except to the extent
Chapter 156B of the Massachusetts General Laws prohibits the elimination or
limitation of such liability.
 
                                       67
<PAGE>
                              CERTAIN TRANSACTIONS
 
    In January 1996, the Company sold $500,500 of its 10% Convertible
Subordinated Debentures due on June 10, 1997 to Wiaf Investors Co. ($334,000),
Melvin Chrein ($83,500), and Kathleen Matthews ($83,000). Such debentures are
convertible into shares of Common Stock at an exercise price of $5.945 per
share. Wiaf Investors Co. and Mr. Chrein have filed Schedules 13DA identifying
themselves as part of an investor group which holds more than five percent of
the Company's outstanding Common Stock and Mrs. Matthews is the wife of George
Matthews, a director of the Company. In September 1996, the Company, Wiaf
Investors Co., Mr. Chrein, and Mrs. Matthews amended the above debentures and
extended the due date to December 10, 1998
 
    In September 1996, the Company sold $350,000 of its 10% Subordinated
Debentures due on December 10, 1998 and issued warrants to purchase 42,000
shares of Common Stock to Melvin Chrein ($100,000 and 12,000 shares), Marshall
Chrein ($25,000 and 3,000 shares), and Charles Alpert ($225,000 and 27,000
shares). Melvin Chrein, Marshall Chrein and Charles Alpert have filed Schedules
13DA identifying themselves as part of an investor group which holds more than
five percent of the Company's outstanding Common Stock.
 
    In December 1997, the Company sold $900,000 of its 10% Convertible
Subordinated Debentures due on December 31, 1999 to Wiaf Investors Co.
($500,000), Melvin Chrein ($150,000), Marshall Chrein ($50,000), George Matthews
($50,000) and $150,000 to an individual not affiliated with the Company. Such
debentures are convertible into shares of Common Stock at an exercise price of
$21.50 per share. Wiaf Investors Co., Melvin Chrein and Marshall Chrein have
filed Schedules 13DA identifying themselves as part of an investor group which
holds more than five percent of the Company's outstanding Common Stock and Mr.
Matthews is currently a director of the Company.
 
    The Company has entered into a management agreement with Mr. Matthews, and
employment agreements with Messrs. Quinn, Spiezio, Nachtrab, Grotheer and
Raftery, as described in "Employment Agreements with Certain Officers" and an
employment and consulting agreement with Mr. Tuffin, as described in "Director
Compensation."
 
                                       68
<PAGE>
                       PRINCIPAL AND SELLING STOCKHOLDERS
 
   
    The following table sets forth as of May 21, 1998, certain information with
respect to the beneficial ownership of the Common Stock by (i) each person known
by the Company to be a beneficial owner of more than five percent of the Common
Stock, (ii) each director of the Company, (iii) each Named Executive Officer,
(iv) all directors and executive officers of the Company as a group, and (v)
each Selling Stockholder. In accordance with Rule 13d-3 under the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), a person is deemed to be
the beneficial owner, for purposes of this table, of any shares of Common Stock
of the Company if he or she has or shares voting power or investment power with
respect to such security or has the right to acquire beneficial ownership at any
time within 60 days of May 21, 1998. As used herein "voting power" is the power
to vote or direct the voting of shares, and "investment power" is the power to
dispose of or direct the disposition of shares. Except as otherwise noted, each
party included in the table has sole voting and investment power with respect to
the shares beneficially owned.
    
 
    BENEFICIAL OWNERSHIP PERCENTAGES SET FORTH IN THE FOLLOWING TABLE DO NOT
REFLECT ACTUAL VOTING POWER RESULTING FROM THE APPLICATION OF THE MASSACHUSETTS
CONTROL SHARE ACQUISITION ACT. SEE "RISK FACTORS-- EFFECTS OF MASSACHUSETTS
CONTROL SHARE ACQUISITION ACT," "RISK FACTORS--SUBSTANTIAL INFLUENCE OF
PRINCIPAL STOCKHOLDERS" AND "DESCRIPTION OF CAPITAL STOCK--MASSACHUSETTS
CORPORATE LAW."
 
   
<TABLE>
<CAPTION>
                                                                     PERCENT                      SHARES        PERCENT
                                                                  BENEFICIALLY      NUMBER OF   BENEFICIALLY BENEFICIALLY
                                            AMOUNT AND NATURE      OWNED PRIOR       SHARES     OWNED AFTER   OWNED AFTER
NAME AND ADDRESS                              OF BENEFICIAL          TO THE           BEING         THE           THE
OF BENEFICIAL OWNER                             OWNERSHIP          OFFERING(1)       OFFERED     OFFERING    OFFERING(1)(2)
- -----------------------------------------  -------------------  -----------------  -----------  -----------  -------------
<S>                                        <C>                  <C>                <C>          <C>          <C>
Charles Alpert(1)(3)(4)..................      2,495,537               50.56%        450,000    2,045,537         28.47%
Joseph Alpert
Wiaf Investors Co.
  466 Arbuckle Avenue
  Lawrence, NY 11516
 
and
 
Melvin B. Chrein, M.D.
Meryl J. Chrein
Marshall J. Chrein
  21 Copper Beech Lane
  Lawrence, NY 11559
 
George J. Matthews(5)....................        416,754                8.65%        145,000      271,754          3.84%
  Chairman of the Board of Directors,
  Director & Consultant
  c/o Matthews Associates Limited
  100 Corporate Place
  Peabody, MA 01960
 
Wilson B. Tuffin(6)......................        401,982                8.38%        150,000      251,982          3.58%
  Vice Chairman and Director
  23 Arlington Street
  Acton, MA 01720
 
Dimensional Fund Advisors, Inc.(7).......        335,500                7.00%          --         335,500          4.77%
  1299 Ocean Avenue
  11th Floor
  Santa Monica, CA 90401
 
Robert E. Quinn(8).......................         85,479                1.76%          --          85,479          1.20%
  President, CEO and Treasurer
 
James M. Spiezio(9)......................         23,665                *              --          23,665          *
  Vice President, Finance and
  Administration
 
Eleanor Donelan..........................         19,788                *              5,000       14,788          *
  27 Beverly Road
  Arlington, MA 02174
</TABLE>
    
 
                                       69
<PAGE>
   
<TABLE>
<CAPTION>
                                                                     PERCENT                      SHARES        PERCENT
                                                                  BENEFICIALLY      NUMBER OF   BENEFICIALLY BENEFICIALLY
                                            AMOUNT AND NATURE      OWNED PRIOR       SHARES     OWNED AFTER   OWNED AFTER
NAME AND ADDRESS                              OF BENEFICIAL          TO THE           BEING         THE           THE
OF BENEFICIAL OWNER                             OWNERSHIP          OFFERING(1)       OFFERED     OFFERING    OFFERING(1)(2)
- -----------------------------------------  -------------------  -----------------  -----------  -----------  -------------
<S>                                        <C>                  <C>                <C>          <C>          <C>
William T. Nachtrab(10)..................         16,999                *              --          16,999          *
  Vice President, Engineering &
  Technology
 
Kenneth A. Smith, Director(11)...........         14,000                *              --          14,000          *
 
Frank H. Brenton, Director(11)...........         14,000                *              --          14,000          *
 
Douglas F. Grotheer(12)..................         11,075                *              --          11,075          *
  President of Starmet CMI Corporation
 
William J. Shea, Director................          --                  --              --           --            --
 
All directors and executive officers (13       1,012,918               20.35%        295,000      717,918          9.93%
persons) as a group(13)..................
</TABLE>
    
 
- ------------------------
 
   
(1) Does not reflect the effect on voting rights of the Massachusetts Control
    Share Acquisition Act. The Company is subject to Chapter 110D of the
    Massachusetts General Laws which governs "control share acquisitions," which
    are acquisitions of beneficial ownership of shares which would raise the
    voting power of the acquiring person above any one of three thresholds:
    one-fifth, one-third or one-half of the total voting power. All shares
    acquired by the person making the control share acquisition within 90 days
    before or after any such threshold is crossed obtain voting rights only upon
    the authorization from a majority of the stockholders other than the person
    acquiring such shares, officers of the Company and those directors of the
    Company who also are employees. Based on certain filings made with the
    Securities and Exchange Commission, the Company believes that certain
    control share acquisitions have occurred and that the members of the group
    which effected such control share acquisitions, namely Wiaf Investors Co.,
    Charles Alpert, Joseph Alpert, Melvin B. Chrein, Meryl J. Chrein and
    Marshall J. Chrein (collectively, the "Investor Group") are the holders of
    1,759,255 shares (the "Affected Shares") which were acquired in control
    share acquisitions (within the meaning of Chapter 110D) and accordingly will
    have no voting rights unless or until such voting rights are authorized as
    described in "Description of Capital Stock." Upon the closing of the
    offering, the Investor Group will beneficially own in the aggregate
    2,045,537 shares of Common Stock (assuming full conversion of convertible
    debentures and including shares issuable upon exercise of all warrants held
    by certain members of the Investor Group), or approximately 28.47% of the
    shares of Common Stock (assuming no exercise of the Underwriters'
    over-allotment option). Of the shares to be beneficially owned by the
    Investor Group, not more than 646,282 (assuming full conversion of
    convertible debentures and including shares issuable upon exercise of all
    warrants held by certain members of the Investor Group) will be entitled to
    vote, or approximately 11.17% of the total outstanding shares entitled to
    vote (assuming no exercise of the Underwriters' over-allotment option).
    
 
(2) Assumes that the Underwriters' over-allotment option is not exercised.
 
(3) Derived from Schedules 13DA, dated March 28, 1997, Forms 5 and stockholder
    questionnaires submitted to the Company. The six persons named are described
    as a group in such Schedules 13DA. The persons named reported ownership of
    the following shares: Wiaf Investors Co. 1,756,756; Melvin B. Chrein
    202,300; Meryl J. Chrein 245,500; Charles Alpert 50,000; Joseph Alpert
    50,000; and Marshall J. Chrein 46,200. Each person reported sole voting and
    dispositive power with respect to the shares owned by such person. Also
    includes 21,021, 79,435 and 2,325 shares which Melvin B. Chrein, Wiaf
    Investors Co. and Marshall Chrein, respectively, have the right to acquire
    upon conversion of outstanding 10% Convertible Subordinated Debentures and
    27,000, 12,000 and 3,000 shares which Charles Alpert or nominee, Melvin B.
    Chrein and Marshall J. Chrein, respectively, have the right to acquire under
    outstanding warrants.
 
(4) 300,000 shares will be sold by Wiaf Investors Co. and Melvin B. Chrein and
    Meryl J. Chrein will each sell 75,000 shares.
 
(5) Includes (i) 13,334 shares which may be purchased upon the exercise of
    currently exercisable options, (ii) 2,325 shares which may be acquired upon
    the conversion of an outstanding 10% Convertible Subordinated Debenture,
    (ii) 13,961 shares which Mr. Matthews' wife has the right to acquire upon
    the conversion of an outstanding 10% Convertible Subordinated Debenture, and
    (iii) 1,980 shares owned by Mr. Matthews' wife. Mr. Matthews disclaims
    beneficial ownership of the debenture and shares held by Mrs. Matthews.
 
(6) Includes 6,666 shares which may be purchased upon the exercise of currently
    exercisable options.
 
(7) The officers of Dimensional Fund Advisors, Inc. also serve as officers of
    DFA Investment Dimensions Group, Inc. (the "Fund") and The DFA Investment
    Trust Company (the "Trust"), each an open-end management investment company
    registered under the Investment Company Act of 1940. In their capacity as
    officers of the Fund and the Trust, these persons vote 126,100 shares which
    are owned by the Fund and 13,000 shares which are owned by the Trust.
 
(8) Includes 63,333 shares which may be purchased upon the exercise of currently
    exercisable options.
 
(9) Includes 21,665 shares which may be purchased upon the exercise of currently
    exercisable options.
 
(10) Includes 14,999 shares which may be purchased upon the exercise of
    currently exercisable options.
 
(11) Includes 8,000 shares which may be purchased upon the exercise of currently
    exercisable options.
 
(12) Includes 9,001 shares which may be purchased upon the exercise of currently
    exercisable options.
 
(13) See notes (5), (6), (8), (9), (10), (11) and (12) above. Also includes an
    additional 24,664 shares which may be purchased upon the exercise of
    currently exercisable options.
 
                                       70
<PAGE>
                          DESCRIPTION OF CAPITAL STOCK
 
    The following summary of certain provisions of the Company's Articles of
Organization, as amended, its By-laws, as amended, and certain provisions of
Massachusetts law pertaining to the Company's capital stock does not purport to
be complete and the summary of each such document is qualified in its entirety
by reference to the full text of such documents, which are included as exhibits
to the Registration Statement of which this Prospectus is a part. For
information as to how such documents may be obtained, see "Available
Information."
 
   
    The authorized capital stock of the Company consists of 15,000,000 shares of
Common Stock, $0.10 par value (the "Common Stock"). As of May 21, 1998 there
were issued and outstanding 4,790,674 shares of Common Stock, held of record by
approximately 300 stockholders, options to purchase 594,920 shares of Common
Stock and warrants to purchase 182,790 shares of Common Stock (205,923 shares
upon the completion of the offering, after taking into account anti-dilution
provisions in the First Warrant held by the Company's principal bank lender, and
assuming no exercise of the Underwriters' over-allotment option). Additionally,
126,044 shares are issuable upon the conversion of outstanding convertible
subordinated debentures.
    
 
COMMON STOCK
 
    Subject to applicable laws, holders of Common Stock are entitled to one vote
for each share held on all matters submitted to a vote of stockholders and will
not have cumulative voting rights. Accordingly, holders of a majority of the
shares of Common Stock entitled to vote in any election of directors may elect
all of the directors standing for election. Holders of Common Stock are entitled
to receive ratably such dividends, if any, as may be declared by the Board of
Directors out of funds legally available therefor. Holders of the Common Stock
have no preemptive, subscription, redemption or conversion rights. The
outstanding shares of Common Stock are, and the shares offered by the Company in
the offering made by this Prospectus will be, when issued and paid for, fully
paid and nonassessable.
 
MASSACHUSETTS CORPORATE LAW
 
    The Company is subject to Chapter 110D of the Massachusetts General Laws
which governs "control share acquisitions," which are certain acquisitions of
beneficial ownership of shares which raise the voting power of the acquiring
person (which can be a group of persons or entities sharing beneficial
ownership) above any one of three thresholds: one-fifth, one-third or one-half
of the total voting power. Each time one of these thresholds is crossed, all
shares acquired by the person making the control share acquisition within the
period beginning 90 days before and ending 90 days after such threshold is
crossed ("Affected Shares") obtain voting rights only (i) upon authorization by
a majority of the stockholders other than the holder of the Affected Shares,
officers of the Company and directors of the Company who also are employees of
the Company or (ii) when disposed of in non-control share acquisitions. The
Company's stockholders, at a duly-constituted meeting, may, by amendment to the
By-Laws or the Articles of Organization, provide that the provisions of Chapter
110D shall not apply to future control share acquisitions of the Company.
Management currently has no plans to propose such an amendment. Chapter 110D may
have the effect of delaying or preventing a change of control of the Company at
a premium price. In addition, because the number of shares of Common Stock
entitled to vote is substantially less than the total number of outstanding
shares of Common Stock, holders of shares of Common Stock purchased in
transactions which are not control share acquisitions, and which occur at a time
when there are Affected Shares outstanding, will obtain voting rights which are
disproportionate to the number of shares held as a percentage of all outstanding
shares (including Affected Shares), which may facilitate the acquisition of
shareholdings which may permit the exercise of a controlling influence on the
management or policies of the Company.
 
    Pursuant to Section 7 of Chapter 110D, if the question of voting rights for
Affected Shares is, at some later date, presented to the Company's stockholders
for their consideration, and voting rights are
 
                                       71
<PAGE>
authorized for the Affected Shares and it is determined that the person making
the control share acquisition has acquired beneficial ownership of shares which,
when added to all other shares of the Company beneficially owned by such person,
entitles such person to vote, or direct voting of, shares of the Company having
a majority or more of all voting power in the election of directors, each
stockholder of record of the Company, other than the person making such control
share acquisition, who does not vote in favor of authorizing voting rights for
the shares acquired in such control share acquisition may demand payment for his
stock in an appraisal in accordance with the provisions of Section 86 to 98,
inclusive, of Chapter 156B of the Massachusetts General Laws. Such appraisal
rights would only become operative in the event that the members of the Investor
Group were to demand that the stockholders consider authorization of voting
rights for the Affected Shares and such authorization were granted. The Investor
Group has not requested that the stockholders of the Company consider
authorization of such voting rights. See "Risk Factors--Effects of Massachusetts
Control Share Acquisition Act."
 
    Massachusetts General Laws Chapter 156B, Section 50A generally requires that
publicly-held Massachusetts corporations have a classified board of directors
consisting of three classes as nearly equal in size as possible, unless the
corporation elects to opt out of the statute's coverage. The Company has elected
to opt out of the statute's coverage.
 
TRANSFER AGENT AND REGISTRAR
 
    The transfer agent and registrar for the Common Stock is Boston EquiServe
LP.
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
   
    Upon completion of the offering, the Company will have 7,040,674 shares of
Common Stock outstanding, (7,490,674 shares if the Underwriters' over-allotment
option is exercised in full), assuming no exercise of the Company's outstanding
options and warrants and no conversion of the Company's convertible debentures.
Of these shares, approximately 1,607,948 currently outstanding shares and the
3,000,000 shares sold in this offering will be freely tradable, without
restriction or further registration under the Securities Act, except for shares
purchased by "affiliates" of the Company, as that term is defined in Rule 144
under the Securities Act, or persons who have been affiliates within the
preceding three months.
    
 
   
    The remaining 2,432,726 outstanding shares of Common Stock are owned by
existing stockholders and are currently deemed "restricted securities" under
Rule 144 and are currently eligible for sale under Rule 144, subject to
restrictions on the timing, manner and volume of such shares.
    
 
   
    As of May 21, 1998, an aggregate of 721,420 shares of Common Stock have been
reserved for issuance upon exercise of options issued or issuable pursuant to
the Company's stock option plans for employees and directors. The Company has
reserved 126,044 shares of Common Stock for issuance upon conversion of the
Company's convertible subordinated debentures and 182,790 shares of Common Stock
for issuance upon exercise of outstanding and immediately exercisable warrants.
Upon completion of the offering and after giving effect of the offering to the
anti-dilution provisions in the First Warrant held by the Company's principal
bank lender, 205,923 shares of Common Stock (210,550 shares assuming exercise in
full of the Underwriters' over-allotment option) will be reserved for issuance
upon exercise of outstanding and immediately exercisable warrants.
    
 
    Pursuant to the agreement related to the issuance to the Company's principal
bank lender of certain warrants, the holder of such warrants is entitled to
certain piggyback registration rights in the event that the Company registers
its securities under the Securities Act for certain transactions (excluding this
offering). These rights are generally subject to certain conditions and
limitations, among them the right of the managing underwriters of an offering to
limit the number of shares included in such registration in certain
circumstances. The Company is obligated to pay all expenses of any such
registration and to indemnify such holder against certain liabilities, including
liabilities under the Securities Act.
 
                                       72
<PAGE>
   
    In connection with this offering, certain stockholders of the Company, who
will hold in the aggregate 2,763,455 shares of Common Stock (includes currently
exercisable options and warrants and shares issuable upon conversion of
outstanding convertible debentures) after giving effect to the offering, are
expected to enter into the lock-up agreements. See "--Lock-up Agreements."
    
 
    In general, under Rule 144 as currently in effect, a person (or persons
whose shares are aggregated), including persons deemed to be "affiliates" of the
Company, who has beneficially owned his or her shares for at least one year
since the later of the date of the acquisition of the securities from the
Company or from an affiliate is entitled to sell within any three-month period
that number of restricted securities that does not exceed the greater of (i) 1%
of the then outstanding shares of securities of the same class or (ii) the
average weekly trading volume of such securities during the four calendar weeks
immediately preceding such sale. Sales under Rule 144 are also subject to
certain requirements relating to the manner and notices of sale and the
availability of the public information concerning the Company. After two years
have elapsed since the later of the date the securities were acquired from the
Company or from an affiliate of the Company, such shares may be sold without
limitation by persons who are not affiliates of the Company and have not been
affiliates of the Company for at least three months prior to the sale under Rule
144(k).
 
   
    The Company has filed a registration statement on Form S-8 under the
Securities Act registering all 370,000 shares of Common Stock issuable under the
Company's 1995 Directors Plan and 1998 Stock Plan. Accordingly, such shares may
be immediately sold, except for shares held by affiliates or persons who have
been affiliates within the preceding three months, which are subject to the
restrictions on the timing, manner and volume of sales under Rule 144, and any
shares subject to the lock-up agreements described below.
    
 
    No prediction can be made as to the effect, if any, that market sales of
additional shares or the availability of such additional shares for sale will
have an impact on the market price of the Common Stock. Nevertheless, sales of
substantial amounts of Common Stock in the public market, or the perception that
such sales may occur, could have an adverse impact on the market price of the
Common Stock.
 
LOCK-UP AGREEMENTS
 
   
    Each of the Company, its directors and executive officers and the Selling
Stockholders are expected to agree that for a period of 180 days from the date
of this Prospectus, he or it will not, directly or indirectly, without the prior
written consent of Bear, Stearns & Co. Inc., issue, sell, offer or agree to
sell, grant any option to purchase, or otherwise transfer or dispose of any
Common Stock or any securities substantially similar to the Common Stock,
otherwise than in this offering.
    
 
                                       73
<PAGE>
                                  UNDERWRITING
 
    Subject to the terms and conditions of the Underwriting Agreement, the
underwriters named below (the "Underwriters"), through their representatives,
Bear, Stearns & Co. Inc. and Furman Selz LLC, have severally agreed to purchase
from the Company and the Selling Stockholders the number of shares of Common
Stock set forth opposite their respective names below:
 
   
<TABLE>
<CAPTION>
UNDERWRITER                                                                  NUMBER OF SHARES
- ---------------------------------------------------------------------------  -----------------
<S>                                                                          <C>
Bear, Stearns & Co. Inc....................................................
Furman Selz LLC............................................................
 
                                                                             -----------------
Total......................................................................       3,000,000
                                                                             -----------------
                                                                             -----------------
</TABLE>
    
 
    The Underwriting Agreement provides that the obligations of the Underwriters
are subject to certain conditions precedent and that, if any of the foregoing
shares of Common Stock are purchased by the Underwriters pursuant to the
Underwriting Agreement, all such shares must be so purchased. The Company and
the Selling Stockholders have agreed to indemnify the Underwriters against
certain liabilities, including liabilities under the Securities Act, or to
contribute to payments that the Underwriters may be required to make in respect
thereof.
 
    The Company and the Selling Stockholders have been advised that the
Underwriters propose initially to offer the shares of Common Stock to the public
at the public offering price set forth on the cover page of this Prospectus and
to certain selected dealers (who may include the Underwriters) at such public
offering price less a concession not to exceed       per share. The selected
dealers may reallow a concession to certain other dealers not to exceed
per share. After the offering to the public, the public offering price, the
concession to selected dealers and the reallowance to other dealers may be
changed by the Underwriters.
 
   
    The Company has granted the Underwriters an option, exercisable during the
30-day period after the date of this Prospectus, to purchase up to 450,000
additional shares of Common Stock at the public offering price, less the
underwriting discount, set forth on the cover page of this Prospectus, solely to
cover over-allotments, if any. To the extent that the Underwriters exercise such
option, each of the Underwriters will have a firm commitment, subject to certain
conditions, to purchase such additional shares in approximately the same
proportion as set forth in the above table.
    
 
    In order to facilitate the offering, certain persons participating in this
offering may engage in transactions that stabilize, maintain or otherwise affect
the price of the Common Stock during and after this offering. Specifically, the
Underwriters may over-allot or otherwise create a short position in the Common
Stock for their own account by selling more shares of Common Stock than have
been sold to them by the Company and the Selling Stockholders. The Underwriters
may elect to cover any such short position by purchasing shares of Common Stock
in the open market or by exercising the over-allotment option granted to the
Underwriters. In addition, such persons may stabilize or maintain the price of
the Common Stock by bidding for or purchasing shares of Common Stock in the open
market and may impose penalty bids, under which selling concessions allowed to
syndicate members or other broker-dealers participating in this offering are
reclaimed if shares of Common Stock previously distributed in this offering are
repurchased in connection with stabilization transactions or otherwise. The
effect of these transactions may be to stabilize or maintain the market price of
the Common Stock at a level above that which might otherwise prevail in the open
market. The imposition of a penalty bid may also affect the price of the Common
Stock to the extent that it discourages resales thereof. No representation is
made as to the
 
                                       74
<PAGE>
magnitude or effect of any such stabilization or other transactions. Such
transactions may be effected on the Nasdaq National Market or otherwise and, if
commenced, may be discontinued at any time.
 
    Certain persons participating in this offering may also engage in passive
market making transactions in the Common Stock on the Nasdaq National Market in
accordance with Rule 103 of Regulation M under the Exchange Act. Rule 103
permits, upon the satisfaction of certain conditions, underwriting and selling
group members participating in a distribution that are also registered Nasdaq
market makers in the security being distributed (or a related security) to
engage in limited passive market making transactions during the period when
Regulation M would otherwise prohibit such activity. In general, a passive
market maker may not bid for or purchase a security at a price that exceeds the
highest independent bid for those securities by a person that is not
participating in the distribution and must identify its passive market making
bids on Nasdaq electronic inter-dealer reporting system. In addition, the net
daily purchases made by a passive market maker generally may not exceed 30% of
such market maker's average daily trading volume in the security for the two
full consecutive calendar months (or any 60 consecutive days ending within 10
days) immediately preceding the date of filing of the Registration Statement of
which this Prospectus forms a part.
 
   
    Each of the Company, its directors and executive officers and the Selling
Stockholders has agreed that for a period of 180 days from the date of this
Prospectus, he or it will not, directly or indirectly, without the prior written
consent of Bear, Stearns & Co. Inc., issue, sell, offer or agree to sell, grant
any option to purchase or otherwise transfer or dispose of any shares of Common
Stock (or any securities convertible into, exercisable for or exchangeable for
shares of Common Stock).
    
 
                                 LEGAL MATTERS
 
   
    The validity of the shares of Common Stock offered hereby will be passed
upon for the Company and the Selling Stockholders by Peabody & Arnold LLP,
Boston, Massachusetts. Thomas A. Wooters, Esq., a Partner of Peabody & Arnold
LLP, is the Clerk of the Company. Mr. Wooters currently holds 8,200 shares of
the Company's Common Stock in an Individual Retirement Account. Mr. Wooters also
holds unvested options to purchase 3,000 shares of Common Stock at an exercise
price of $15.56 per share and 7,500 shares of Common Stock at an exercise price
of $23.67, in each case based on the market price of the Common Stock at the
time of the grant. Iandiorio & Teska is acting as the Company's counsel in
connection with legal matters relating to its patents. Debevoise & Plimpton is
acting as counsel for the Underwriters in connection with certain legal matters
relating to the sale of the shares of Common Stock offered hereby.
    
 
                                    EXPERTS
 
    The Consolidated Financial Statements and the financial statement schedule
included in this Prospectus and elsewhere in the Registration Statement of which
the Prospectus is a part, to the extent of and for the periods indicated in
their reports, have been audited by Arthur Andersen LLP, independent public
accountants, as indicated in their reports with respect thereto, and are
included herein in reliance upon the authority of said firm as experts in giving
said reports.
 
                             AVAILABLE INFORMATION
 
    The Company is subject to the informational reporting requirements of the
Exchange Act and in accordance therewith files reports, proxy statements and
other information with the Securities and Exchange Commission (the
"Commission"). Such reports, proxy statements and other information may be
inspected and copied at the public reference facilities maintained by the
Commission at Judiciary Plaza, 450 Fifth Street, N.W., Room 1024, Washington,
D.C. 20549, and at the public reference facilities of Commission's following
Regional Offices: Chicago Regional Office, Citicorp Center, 500 West Madison
Street, Suite 1400, Chicago, Illinois 60661-2511; and New York Regional Office,
7 World Trade Center,
 
                                       75
<PAGE>
Suite 1300, New York, New York 10048. Copies of such material can be obtained at
prescribed rates from the Public Reference Section of the Commission at 450
Fifth Street, N.W., Judiciary Plaza, Washington, D.C. 20549. Certain of such
reports, proxy statements and other information concerning the Company are also
available on the Commission's Web Site (http://www.sec.gov). In addition, this
material may also be inspected at the offices of The Nasdaq National Market at
1735 K Street, N.W., Washington, D.C. 20006, where copies may be obtained at
prescribed rates.
 
    The Company has filed with the Commission under the Securities Act a
Registration Statement on Form S-1 (the "Registration Statement") with respect
to the shares of Common Stock to be offered and sold hereby. This Prospectus is
included as a part of the Registration Statement, but does not contain all of
the information set forth in the Registration Statement, certain parts of which
are omitted in accordance with the rules and regulations of the Commission.
Statements contained in this Prospectus as to the contents of any contract or
other document referred to herein are not necessarily complete, and in each
instance reference is made to the copy of such contract or other document filed
as an exhibit or appendix to the Registration Statement, each such statement
being qualified in all respects by such reference. The Registration Statement in
full, including the exhibits and schedules thereto, may be inspected without
charge at the Commission's Public Reference Section, Room 1-24, located at 450
Fifth Street, N.W., Washington, D.C. 20549. Copies thereof may also be obtained
from the Commission upon payment of prescribed fees by writing to the Commission
at the above address.
 
                                       76
<PAGE>
                              STARMET CORPORATION
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<S>                                                                                     <C>
Report of Independent Public Accountants..............................................        F-2
Consolidated Balance Sheets...........................................................        F-3
Consolidated Statement of Operations..................................................        F-4
Consolidated Statement of Stockholders' Equity........................................        F-5
Consolidated Statement of Cash Flows..................................................        F-6
Notes to Consolidated Financial Statements............................................        F-7
</TABLE>
 
                                      F-1
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To the Board of Directors and Stockholders of Starmet Corporation:
 
    We have audited the accompanying consolidated balance sheets of Starmet
Corporation (formerly Nuclear Metals, Inc.) (a Massachusetts corporation) and
subsidiaries as of September 30, 1996 and 1997, and the related consolidated
statements of operations, stockholders' equity and cash flows for each of the
three years in the period ended September 30, 1997. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits.
 
    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
    In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Starmet
Corporation and subsidiaries as of September 30, 1996 and 1997, and the results
of their operations and their cash flows for each of the three years in the
period ended September 30, 1997, in conformity with generally accepted
accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
Boston, Massachusetts
November 14, 1997
(Except with respect to the matters
discussed in Notes 6 and 11 as to which the
date is December 29, 1997)
 
                                      F-2
<PAGE>
                              STARMET CORPORATION
 
                          CONSOLIDATED BALANCE SHEETS
   
<TABLE>
<CAPTION>
                                                                             SEPTEMBER 30,            MARCH 31,
                                                                      ----------------------------  -------------
<S>                                                                   <C>            <C>            <C>
                                                                          1996           1997           1998
                                                                      -------------  -------------  -------------
 
<CAPTION>
                                                                                                     (UNAUDITED)
<S>                                                                   <C>            <C>            <C>
                                                     ASSETS
Current assets:
    Cash and cash equivalents.......................................  $   1,051,000  $     195,000  $     247,000
    Restricted cash.................................................        250,000         73,000         73,000
    Accounts receivable, net of allowances for doubtful accounts of
      $821,000 and $421,000 as of September 30, 1996 and 1997,
      respectively and $421,000 as of March 31, 1998................      4,931,000      5,546,000      7,743,000
    Inventories.....................................................     12,025,000     11,440,000     11,485,000
    Other current assets............................................        376,000        619,000        261,000
                                                                      -------------  -------------  -------------
      Total current assets..........................................     18,633,000     17,873,000     19,809,000
                                                                      -------------  -------------  -------------
Property, plant and equipment:
    Land............................................................      2,178,000      2,124,000      2,124,000
    Buildings.......................................................     18,040,000     17,656,000     17,779,000
    Machinery, equipment, and fixtures..............................     26,179,000     18,472,000     19,380,000
    Construction-in-progress........................................        583,000        831,000      2,149,000
                                                                      -------------  -------------  -------------
      Total property, plant and equipment...........................     46,980,000     39,083,000     41,432,000
      Less: accumulated depreciation................................     31,834,000     24,036,000     24,860,000
                                                                      -------------  -------------  -------------
      Net property, plant, and equipment............................     15,146,000     15,047,000     16,572,000
Other assets........................................................      1,339,000      1,784,000      2,159,000
                                                                      -------------  -------------  -------------
                                                                      $  35,118,000  $  34,704,000  $  38,540,000
                                                                      -------------  -------------  -------------
                                                                      -------------  -------------  -------------
 
                                      LIABILITIES AND STOCKHOLDERS' EQUITY
 
  Current liabilities:
    Current portion of long-term obligations and notes payable to
      stockholders..................................................  $     510,000  $   1,885,000  $   5,888,000
    Accounts payable................................................      2,143,000      3,123,000      3,648,000
    Accrued payroll and related costs...............................      1,170,000      1,215,000      1,154,000
    Other accrued expenses..........................................      5,561,000        907,000      1,191,000
                                                                      -------------  -------------  -------------
      Total current liabilities.....................................      9,384,000      7,130,000     11,881,000
                                                                      -------------  -------------  -------------
  Long-term obligations.............................................        644,000        430,000        336,000
                                                                      -------------  -------------  -------------
  Notes payable to stockholders.....................................        720,000      1,048,000      1,165,000
                                                                      -------------  -------------  -------------
Commitments and contingencies (Note 11)
 
  Stockholders' equity:
    Common stock, par value $0.10; authorized--15,000,000 shares;
      issued and outstanding as of September 30, 1996 and 1997 and
      March 31, 1998; 4,781,928, 4,784,244 and 4,790,274,
      respectively..................................................        478,000        478,000        479,000
    Additional paid-in capital......................................     14,019,000     14,033,000     14,055,000
    Warrants issued.................................................        130,000        360,000        687,000
    Retained earnings...............................................      9,743,000     11,225,000      9,937,000
                                                                      -------------  -------------  -------------
      Total stockholders' equity....................................     24,370,000     26,096,000     25,158,000
                                                                      -------------  -------------  -------------
                                                                      $  35,118,000  $  34,704,000  $  38,540,000
                                                                      -------------  -------------  -------------
                                                                      -------------  -------------  -------------
</TABLE>
    
 
  The accompanying notes are an integral part of these consolidated financial
                                  statements.
 
                                      F-3
<PAGE>
                              STARMET CORPORATION
 
                      CONSOLIDATED STATEMENT OF OPERATIONS
 
   
<TABLE>
<CAPTION>
                                                 YEARS ENDED SEPTEMBER 30,            SIX MONTHS ENDED MARCH 31,
                                        -------------------------------------------  ----------------------------
                                            1995           1996           1997           1997           1998
                                        -------------  -------------  -------------  -------------  -------------
<S>                                     <C>            <C>            <C>            <C>            <C>
                                                                                             (UNAUDITED)
Net sales and contract revenues.......  $  18,784,000  $  28,694,000  $  28,062,000  $  12,613,000  $  18,769,000
Cost of sales.........................     15,452,000     25,053,000     19,136,000      7,902,000     14,526,000
Selling, general, and administrative
  expenses............................      4,817,000      5,325,000      5,448,000      3,273,000      4,475,000
Research and development expenses.....        439,000        876,000      1,309,000        699,000        567,000
Loss on write-off of fixed assets.....             --             --        358,000             --             --
                                        -------------  -------------  -------------  -------------  -------------
                                           20,708,000     31,253,000     26,251,000     11,874,000     19,568,000
                                        -------------  -------------  -------------  -------------  -------------
Operating income (loss)...............     (1,924,000)    (2,560,000)     1,811,000        739,000       (799,000)
Interest and other income (expense),
  net.................................        232,000        (89,000)        (2,000)        11,000             --
Interest expense......................       (350,000)      (387,000)      (296,000)      (119,000)      (489,000)
                                        -------------  -------------  -------------  -------------  -------------
Income (loss) before income taxes and
  extraordinary item..................     (2,042,000)    (3,036,000)     1,513,000        631,000     (1,288,000)
Provision (benefit) for income
  taxes...............................     (1,967,000)         1,000         31,000         13,000             --
                                        -------------  -------------  -------------  -------------  -------------
Income (loss) before extraordinary
  item................................        (75,000)    (3,037,000)     1,482,000        618,000     (1,288,000)
Extraordinary gain on extinguishment
  of debt net of taxes of $10,000.....        585,000             --             --             --             --
                                        -------------  -------------  -------------  -------------  -------------
Net income (loss).....................  $     510,000  $  (3,037,000) $   1,482,000  $     618,000  $  (1,288,000)
                                        -------------  -------------  -------------  -------------  -------------
                                        -------------  -------------  -------------  -------------  -------------
Per share information (1):
- --------------------------------------
Basic income (loss) before
  extraordinary item..................  $       (0.02) $       (0.64) $        0.31  $        0.13  $       (0.27)
Extraordinary gain on extinguishment
  of debt net of taxes of $10,000.....           0.12             --             --             --             --
                                        -------------  -------------  -------------  -------------  -------------
Basic net income (loss) per common
  share...............................  $        0.11  $       (0.64) $        0.31  $        0.13  $       (0.27)
                                        -------------  -------------  -------------  -------------  -------------
                                        -------------  -------------  -------------  -------------  -------------
Weighted average number of common
  shares outstanding..................      4,701,000      4,779,000      4,783,000      4,782,000      4,787,000
                                        -------------  -------------  -------------  -------------  -------------
                                        -------------  -------------  -------------  -------------  -------------
Diluted net income (loss) per common
  and dilutive potential common shares
  outstanding.........................  $        0.11  $       (0.64) $        0.30  $        0.13  $       (0.27)
Weighted average number of common and
  dilutive potential common shares
  outstanding.........................      4,706,000      4,779,000      4,959,000      4,928,000      4,787,000
                                        -------------  -------------  -------------  -------------  -------------
                                        -------------  -------------  -------------  -------------  -------------
</TABLE>
    
 
(1) Adjusted to reflect the two-for-one stock dividend issued on April 7, 1997.
 
  The accompanying notes are an integral part of these consolidated financial
                                  statements.
 
                                      F-4
<PAGE>
                              STARMET CORPORATION
 
                 CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
 
   
<TABLE>
<CAPTION>
                                                     COMMON STOCK
                                         -------------------------------------
<S>                                      <C>         <C>         <C>            <C>         <C>            <C>
                                                                  ADDITIONAL
                                           NUMBER       PAR         PAID-IN                   RETAINED
                                         OF SHARES     VALUE        CAPITAL      WARRANTS     EARNINGS         TOTAL
                                         ----------  ----------  -------------  ----------  -------------  -------------
Balance at September 30, 1994..........   4,614,928  $  460,000  $  13,522,000  $       --  $  12,270,000  $  26,252,000
                                         ----------  ----------  -------------  ----------  -------------  -------------
Stock options exercised................     161,000      18,000        465,000          --             --        483,000
Net income for year....................          --          --             --          --        510,000        510,000
                                         ----------  ----------  -------------  ----------  -------------  -------------
Balance at September 30, 1995..........   4,775,928  $  478,000  $  13,987,000  $       --  $  12,780,000  $  27,245,000
                                         ----------  ----------  -------------  ----------  -------------  -------------
Warrants issued........................          --          --             --     130,000             --        130,000
Stock options exercised................       6,000          --         32,000          --             --         32,000
Net loss for year......................          --          --             --          --     (3,037,000)    (3,037,000)
                                         ----------  ----------  -------------  ----------  -------------  -------------
Balance at September 30, 1996..........   4,781,928  $  478,000  $  14,019,000  $  130,000  $   9,743,000  $  24,370,000
                                         ----------  ----------  -------------  ----------  -------------  -------------
Warrants issued........................          --          --             --     230,000             --        230,000
Stock options exercised................       2,316          --         14,000          --             --         14,000
Net income for year....................          --          --             --          --      1,482,000      1,482,000
                                         ----------  ----------  -------------  ----------  -------------  -------------
Balance at September 30, 1997..........   4,784,244  $  478,000  $  14,033,000  $  360,000  $  11,225,000  $  26,096,000
                                         ----------  ----------  -------------  ----------  -------------  -------------
Warrants issued (unaudited)............          --          --             --     327,000             --        327,000
Stock options exercised (unaudited)....       6,030       1,000         22,000          --             --         23,000
Net loss for the six months ended March
  31, 1998 (unaudited).................          --          --             --          --     (1,288,000)    (1,288,000)
                                         ----------  ----------  -------------  ----------  -------------  -------------
Balance at March 31, 1998
  (unaudited)..........................   4,790,274     479,000     14,055,000     687,000      9,937,000     25,158,000
                                         ----------  ----------  -------------  ----------  -------------  -------------
                                         ----------  ----------  -------------  ----------  -------------  -------------
</TABLE>
    
 
  The accompanying notes are an integral part of these consolidated financial
                                  statements.
 
                                      F-5
<PAGE>
                              STARMET CORPORATION
                      CONSOLIDATED STATEMENT OF CASH FLOWS
 
   
<TABLE>
<CAPTION>
                                                                                                 SIX MONTHS ENDED
                                                            YEARS ENDED SEPTEMBER 30,               MARCH 31,
                                                      -------------------------------------  ------------------------
                                                         1995         1996         1997         1997         1998
                                                      -----------  -----------  -----------  -----------  -----------
<S>                                                   <C>          <C>          <C>          <C>          <C>
                                                                                                   (UNAUDITED)
Cash flows from operating activities:
  Net income (loss).................................  $   510,000  $(3,037,000) $ 1,482,000  $   618,000  $(1,288,000)
  Adjustments to reconcile net income to net cash
    provided (used) by operating activities:
    Depreciation and amortization...................    1,339,000    1,493,000    1,588,000      751,000      999,000
    Loss on write-off of fixed assets...............           --           --      358,000           --           --
    Changes in assets and liabilities, net:
      Decrease (increase) in accounts receivable....      725,000     (201,000)    (616,000)     511,000   (2,197,000)
      Decrease (increase) in inventories............   (2,982,000)   2,099,000      585,000      346,000      (45,000)
      (Decrease) increase in accounts payable and
        accrued expenses............................    1,387,000    3,358,000   (3,629,000)  (2,650,000)     762,000
      Decrease (increase) in other assets...........           --           --           --      (83,000)     (17,000)
    Gain on sale of building........................     (175,000)     (75,000)          --           --           --
    Changes in accrued and deferred taxes...........       (1,000)          --           --           --           --
    Changes in other long-term liabilities..........     (981,000)    (301,000)          --           --           --
    Other...........................................     (100,000)     440,000     (689,000)      (1,000)       1,000
                                                      -----------  -----------  -----------  -----------  -----------
      Net cash provided (used) by operating
        activities..................................     (278,000)   3,776,000     (921,000)    (508,000)  (1,785,000)
                                                      -----------  -----------  -----------  -----------  -----------
Cash flows from investing activities:
  Capital expenditures, net.........................     (777,000)  (1,449,000)  (1,788,000)    (785,000)  (2,349,000)
  Sales of marketable securities, net...............      326,000      170,000           --           --           --
  Proceeds from sale of property, plant &
    equipment.......................................      487,000      172,000           --       12,000           --
                                                      -----------  -----------  -----------  -----------  -----------
      Net cash (used) provided by investing
        activities..................................       36,000   (1,107,000)  (1,788,000)    (773,000)  (2,349,000)
                                                      -----------  -----------  -----------  -----------  -----------
Cash flows from financing activities:
  Principal payments under long-term obligations....           --           --     (545,000)  (1,994,000)  (9,934,000)
  Net proceeds from bank debt.......................     (378,000)  (3,326,000)   1,707,000    2,422,000   13,220,000
  Proceeds from notes payable to stockholders and
    warrants........................................           --      850,000      500,000           --      900,000
  Proceeds from stock issuance......................      483,000       32,000       14,000           --           --
                                                      -----------  -----------  -----------  -----------  -----------
      Net cash (used) provided by financing
        activities..................................      105,000   (2,444,000)   1,676,000      428,000    4,186,000
                                                      -----------  -----------  -----------  -----------  -----------
Net increase (decrease) in cash and cash
  equivalents.......................................     (137,000)     225,000   (1,033,000)    (853,000)      52,000
  Cash and cash equivalents at beginning of period..    1,213,000    1,076,000    1,301,000    1,051,000      195,000
                                                      -----------  -----------  -----------  -----------  -----------
  Cash and cash equivalents at end of period........  $ 1,076,000  $ 1,301,000  $   268,000  $   198,000  $   247,000
                                                      -----------  -----------  -----------  -----------  -----------
                                                      -----------  -----------  -----------  -----------  -----------
Supplemental disclosures of cash flow information:
  Cash paid (received) during the period for:
    Interest, net of amounts capitalized............  $   280,000  $   345,000  $   266,000  $    46,000  $   158,000
    Income taxes....................................  $   978,000  $    11,000  $    14,000  $        --  $        --
Non-cash investing & financing activities:
  Capital lease obligations.........................  $        --  $    75,000  $        --  $     6,000  $     7,000
</TABLE>
    
 
  The accompanying notes are an integral part of these consolidated financial
                                  statements.
 
                                      F-6
<PAGE>
                              STARMET CORPORATION
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1. OPERATIONS
 
   
    The Company (Starmet Corporation and its subsidiaries) is an innovator in
the design, development and processing of specialty metals, a precision
manufacturer of technologically sophisticated metal components and products, and
a leader in certain advanced materials conversion and recycling technologies.
Effective October 1, 1997 the Company changed its name from Nuclear Metals, Inc.
to Starmet Corporation. Export sales to foreign unaffiliated customers were 33%
of total net sales and contract revenues in fiscal 1995, 28% in fiscal 1996, 25%
in fiscal 1997 and 24% in the six months ended March 31, 1998. A significant
portion of the Company's sales revenue has been derived from major customers as
follows:
    
 
   
<TABLE>
<CAPTION>
                                                                YEARS ENDED
                                                               SEPTEMBER 30,
                                                   -------------------------------------
                                                      1995         1996         1997
                                                      -----        -----        -----           SIX MONTHS
                                                                                              ENDED MARCH 31,
                                                                                          -----------------------
                                                                                                   1998
                                                                                          -----------------------
                                                                                                (UNAUDITED)
<S>                                                <C>          <C>          <C>          <C>
Royal Ordnance...................................           0%          11%          19%                19%
United States Enrichment Corporation.............           0            5           14                  2
Primex Technologies..............................           8           20           12                 14
Lockheed Martin..................................          18           16            7                  6
Lockheed Idaho Falls.............................           9            4            5                  6
U.S. Army (holding basin)........................           0            0            3                 21
</TABLE>
    
 
2. SIGNIFICANT ACCOUNTING POLICIES
 
PRINCIPLES OF CONSOLIDATION
 
    The accompanying consolidated financial statements include the accounts of
Starmet Corporation and its wholly owned subsidiaries: Starmet Powders, LLC,
Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI
Corporation, Starmet CMI Corporation, Starmet Holdings Corporation and NMI
Foreign Sales Corporation. All material intercompany transactions and balances
have been eliminated in consolidation.
 
FISCAL YEARS
 
    References in these financial statements to 1997, 1996 and 1995 are for the
fiscal years ended September 30, 1997, September 30, 1996, and September 30,
1995, respectively. The accompanying financial statements and all share and per
share information have been restated to reflect the two-for-one stock dividend
issued on April 7, 1997.
 
INTERIM FINANCIAL STATEMENTS
 
   
    The financial information as of and for the six months ended March 31, 1998
and for the six months ended March 31, 1997 has been prepared by the Company
pursuant to the rules and regulations of the Securities and Exchange Commission
and is not subject to audit by independent public accountants. Certain
information and footnote disclosures normally included in financial statements
prepared in accordance with generally accepted accounting principles have been
condensed or omitted pursuant to such rules and regulations. The information
furnished reflects all adjustments, which, in the opinion of management, are
necessary for a fair statement of results for the interim periods. It should
also be noted
    
 
                                      F-7
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
2. SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
that results for the interim periods are not necessarily indicative of the
results expected for any other interim period or the full year.
 
REVENUE RECOGNITION
 
    Revenues are recorded when products are shipped, except for revenues on
long-term contracts, which are recorded on the percentage-of-completion method.
The percentage-of-completion method is used for research and development
contracts and for production contracts, which require significant amounts of
initial engineering and development costs. The percentage-of-completion is
determined by relating the actual number of contract units completed to date to
the total units to be completed under the respective contract or by relating
total costs incurred to total estimated cost at completion. When the estimated
total costs on a contract indicates a loss, the Company's policy is to record
the entire loss currently. Performance incentives and penalties incorporated in
certain government contracts are recognized when incentives are earned or
awarded or when penalties are incurred or assessed. Contract revenues include
fees resulting from facilitization contracts with the U.S. Army (contracts to
establish production capacity through the purchase and installation of equipment
to be owned by the U.S. Army). The consolidated balance sheets do not include
the cost of this U.S. Army-owned equipment.
 
CASH AND CASH EQUIVALENTS
 
   
    Cash and cash equivalents are recorded at cost, which approximates market
value. Cash equivalents include certificates of deposit with a maturity of three
months or less.
    
 
   
RESTRICTED CASH
    
 
   
    The Company is required to maintain a certain amount of cash at a bank as
collateral for a letter of credit issued by the bank on behalf of the Company.
As of September 30, 1997, $73,000 was held in an account with the bank pursuant
to the letter of credit agreement.
    
 
INVENTORIES
 
    Inventories are stated at the lower of cost (first-in, first-out) or market
and include materials, labor, and manufacturing and engineering overhead.
 
PROPERTY, PLANT, AND EQUIPMENT
 
    Property, plant, and equipment are recorded at the lower of cost or net
realizable value. For financial reporting purposes, the Company provides
depreciation on the straight-line method over the estimated useful lives of the
assets, which are as follows:
 
<TABLE>
<S>                                                              <C>
Buildings......................................................  20-30 years
Machinery, equipment, and fixtures.............................  3-10 years
</TABLE>
 
    Maintenance and repairs are charged to operations as incurred; renewals and
betterments are capitalized. When property, plant, and equipment are sold,
retired or disposed of, the asset cost and accumulated depreciation are removed
from the accounts, and the resulting gain or loss is included in operations.
 
                                      F-8
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
2. SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
   
    During fiscal 1997 the Company completed a review of its property, plant and
equipment and identified assets with a net book value of $358,000 that were no
longer being utilized. The Company recorded a charge to write off these assets.
    
 
   
    In fiscal 1997, the Company adopted the Financial Accounting Standards Board
("FASB") issued Statement of Financial Accounting Standards (SFAS) No. 121,
"Accounting for the Impairment of Long-Lived Assets and of Long-Lived Assets to
be Disposed of." This statement requires a review of impairment for long-lived
assets and certain identifiable intangibles to be held and used by an entity
whether events or changes in circumstances indicate that the carrying amount of
the assets may not be recoverable. An impairment loss is recognized if the sum
of the expected future cash flows to result from the use and eventual
disposition of the asset is less than the carrying amount of the asset. The
amount by which the carrying amount of the asset exceeds the fair value less
costs to sell, is an impairment loss. The effect of adopting this statement was
not material to the Company's financial position or results of operation.
    
 
    In the fourth quarter of fiscal 1996, the Company established a $2,100,000
reserve for estimated losses associated with Starmet CMI's production contracts.
The Company was obligated to complete these contracts, which were fixed price.
The contracts have been completed and the reserve has been fully utilized as of
September 30, 1997.
 
INCOME TAXES
 
    The Company accounts for income taxes in accordance with SFAS No. 109,
"Accounting for Income Taxes." Accordingly, the Company recognizes deferred
income taxes based on the expected future tax consequences of differences
between the financial statement basis and the tax basis of assets and
liabilities, calculated using enacted tax rates in effect for the year in which
the differences are expected to be reflected in the tax return. The Company
records a valuation allowance against any net deferred tax assets whose
realizability is uncertain.
 
    The deferred federal and state income taxes result primarily from using
accelerated depreciation on property, plant, and equipment for income tax
reporting purposes and from establishing reserves which are not currently
deductible for income tax purposes, respectively.
 
RESEARCH AND DEVELOPMENT COSTS
 
    Research and development costs are expensed as incurred. Research and
development incurred under customer contracts are expensed through cost of sales
in the period incurred.
 
   
    Customer funded research and development:
    
 
   
<TABLE>
<CAPTION>
                                                                             SIX MONTHS
                                      YEARS ENDED SEPTEMBER 30,           ENDED MARCH 31,
                                 ------------------------------------  ----------------------
                                    1995         1996         1997        1997        1998
                                 ----------  ------------  ----------  ----------  ----------
                                                                            (UNAUDITED)
<S>                              <C>         <C>           <C>         <C>         <C>
Revenue........................  $  557,000  $  1,812,000  $  793,000  $  111,000  $  291,000
Cost of sales..................     459,000     1,273,000     675,000      84,000     340,000
</TABLE>
    
 
                                      F-9
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
2. SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
INCOME PER SHARE OF COMMON STOCK
 
    The Company has adopted SFAS No. 128, Earnings per Share, effective December
15, 1997. SFAS No. 128 replaces primary earnings per share with "basic earnings
per common share." Basic earnings per common share is computed by dividing net
income by the weighted average number of shares of common stock outstanding
during the year. No dilution for any potentially dilutive securities is
included. In addition, SFAS No. 128 replaces fully diluted earnings per common
share with "diluted earnings per common share." Dilution for options and
warrants under SFAS No. 128 is computed using the average share price of the
Company's common stock for the period. In loss periods, potentially dilutive
securities are excluded as they would be anti-dilutive. All previously reported
amounts for EPS have been restated to conform with SFAS 128.
 
    Common share and common share dilutive potential disclosures are:
 
   
<TABLE>
<CAPTION>
                                                                                          SIX MONTHS ENDED
                                                       YEARS ENDED SEPTEMBER 30,             MARCH 31,
                                                   ----------------------------------  ----------------------
                                                      1995        1996        1997        1997        1998
                                                   ----------  ----------  ----------  ----------  ----------
<S>                                                <C>         <C>         <C>         <C>         <C>
                                                                                            (UNAUDITED)
Weighted average common shares outstanding.......   4,701,000   4,779,000   4,783,000   4,782,000   4,787,000
Dilutive potential common shares.................       5,000          --     176,000     146,000          --
                                                   ----------  ----------  ----------  ----------  ----------
Diluted common shares............................   4,706,000   4,779,000   4,959,000   4,928,000   4,787,000
                                                   ----------  ----------  ----------  ----------  ----------
                                                   ----------  ----------  ----------  ----------  ----------
Options and warrants excluded from diluted income
  per common share as their effect would be
  antidilutive...................................      90,000     303,000          --          --     778,000
                                                   ----------  ----------  ----------  ----------  ----------
                                                   ----------  ----------  ----------  ----------  ----------
</TABLE>
    
 
RECLASSIFICATIONS
 
    Certain amounts previously reported in the consolidated financial statements
have been reclassified to conform to the 1997 presentation.
 
USE OF ESTIMATES IN THE PREPARATION OF FINANCIAL STATEMENTS
 
    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
DISCLOSURES ABOUT THE FAIR VALUE OF FINANCIAL INSTRUMENTS
 
    The Company's financial instruments consist mainly of cash and cash
equivalents, restricted cash, accounts receivable, notes receivable from
officers, accounts payable and notes payable. The carrying amounts of the
Company's cash and equivalents, restricted cash accounts receivable, notes
receivable from officers and accounts payable approximate their fair value due
to the short-term nature of these instruments. The carrying value of the notes
payable also approximates the fair value, based on rates available to the
Company for debt with similar terms and remaining maturities.
 
                                      F-10
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
2. SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
   
LEGAL COSTS FOR LOSS CONTINGENCIES
    
 
   
    Legal costs are recorded in the period in which the legal services are
provided.
    
 
3. OTHER ACCRUED EXPENSES
 
    Accrued expenses consist of the following:
 
   
<TABLE>
<CAPTION>
                                                        AT SEPTEMBER 30,       AT MARCH 31,
                                                    ------------------------  ---------------
                                                        1996         1997          1998
                                                    ------------  ----------  ---------------
<S>                                                 <C>           <C>         <C>
                                                                                (UNAUDITED)
Waste burial cost.................................  $  2,884,000  $  404,000   $     677,000
Estimated loss on contracts.......................     2,100,000          --              --
Other.............................................       577,000     503,000         514,000
                                                    ------------  ----------  ---------------
                                                    $  5,561,000  $  907,000   $   1,191,000
                                                    ------------  ----------  ---------------
                                                    ------------  ----------  ---------------
</TABLE>
    
 
   
    During the fiscal year ended September 30, 1997, the Company reduced certain
accruals by $1,750,000 for waste burial costs which were deemed no longer
necessary.
    
 
4. ACCOUNTS RECEIVABLE
 
    The following is an analysis of accounts receivable (net of allowances for
doubtful accounts):
 
   
<TABLE>
<CAPTION>
                                                        AT SEPTEMBER 30,        AT MARCH 31,
                                                   --------------------------  ---------------
                                                       1996          1997           1998
                                                   ------------  ------------  ---------------
<S>                                                <C>           <C>           <C>
                                                                                 (UNAUDITED)
Accounts receivable..............................  $  3,479,000  $  5,460,000   $   6,680,000
Unbilled receivables and retainages due upon
  completion of contracts........................     1,452,000        86,000       1,063,000
                                                   ------------  ------------  ---------------
                                                   $  4,931,000  $  5,546,000   $   7,743,000
                                                   ------------  ------------  ---------------
                                                   ------------  ------------  ---------------
</TABLE>
    
 
5. INVENTORIES
 
    Inventories (net of reserves) were as follows:
 
   
<TABLE>
<CAPTION>
                                                      AT SEPTEMBER 30,         AT MARCH 31,
                                                ----------------------------  ---------------
                                                    1996           1997            1998
                                                -------------  -------------  ---------------
<S>                                             <C>            <C>            <C>
                                                                                (UNAUDITED)
Work-in-process...............................  $     805,000  $   2,511,000   $   2,288,000
Raw materials.................................     10,512,000      8,271,000       8,538,000
Spare parts...................................        708,000        658,000         659,000
                                                -------------  -------------  ---------------
                                                $  12,025,000  $  11,440,000   $  11,485,000
                                                -------------  -------------  ---------------
                                                -------------  -------------  ---------------
</TABLE>
    
 
    As of September 30, 1997, approximately $6.9 million of the Company's
inventory consisted of DU in various stages of production. This amount consisted
of $3.6 million value-added costs to government owned material which is used for
U.S. Military contracts and for $3.3 million material which the Company
 
                                      F-11
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
5. INVENTORIES (CONTINUED)
has acquired from other sources. During fiscal 1995, the U.S. Army notified the
Company that the Army would provide the DU for production for the most recent
penetrator contract. Management strongly believes that the Army is responsible
to compensate the Company for the value-added costs of this material and that at
a minimum the Army would allow the Company to use this material for non-U.S.
military contracts at no additional cost to the Company. Management is pursuing
several Department of Energy programs that would require more DU over the next
several years than the Company currently has on hand. Management believes that
the carrying cost of the inventory on hand will be fully realizable through
these possible programs or from its ongoing usage for U.S. and foreign military
procurements; however, it is uncertain how much of the inventory balance will be
utilized in fiscal 1998. During fiscal 1997, the Company reduced inventory
reserves by approximately $1,000,000 which were deemed no longer necessary.
 
6. LONG-TERM OBLIGATIONS AND NOTES PAYABLE
 
    Long-term obligations and notes payable of the Company are as follows:
 
   
<TABLE>
<CAPTION>
                                                                            AT SEPTEMBER 30,        AT MARCH 31,
                                                                       --------------------------  ---------------
                                                                           1996          1997           1998
                                                                       ------------  ------------  ---------------
<S>                                                                    <C>           <C>           <C>
                                                                                                     (UNAUDITED)
Term credit, interest rate of prime plus 0.5% due in monthly
  principal payments through 1996....................................  $    133,000  $         --   $          --
Line of credit, interest rate of prime plus 0.5% (9.0% at September
  30, 1997)..........................................................            --     1,706,000       5,113,000
Industrial development revenue notes, variable interest rates
  (5.6524% at September 30, 1997) due in quarterly principal payments
  through 2000.......................................................       492,000       180,000         140,000
Notes payable to stockholders interest only payments of 10% until
  maturity...........................................................       850,000     1,350,000       2,251,000
Note payable, monthly interest and principal payments through
  November 2000, interest rate of 10.25%.............................       457,000       370,000         323,000
Capital leases.......................................................        72,000        59,000          52,000
                                                                       ------------  ------------  ---------------
                                                                       $  2,004,000  $  3,665,000   $   7,879,000
Less unamortized discount on stockholder debentures and line of
  credit.............................................................       130,000       302,000         490,000
Less current portion of long-term obligations........................       510,000     1,885,000       5,888,000
                                                                       ------------  ------------  ---------------
Total long-term obligations and stockholder debentures...............  $  1,364,000  $  1,478,000   $   1,501,000
                                                                       ------------  ------------  ---------------
                                                                       ------------  ------------  ---------------
</TABLE>
    
 
                                      F-12
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
6. LONG-TERM OBLIGATIONS AND NOTES PAYABLE (CONTINUED)
 
CREDIT FACILITY
 
    On August 7, 1997, the Company and its principal bank lender, State Street
Bank & Trust Company, signed the Third Amendment to the credit agreement dated
March 31, 1995 (as amended, the "Credit Agreement"). The Third Amendment
increased the Company's credit facilities from $4.25 million to $6.55 million,
with a maturity date of February 28, 1998. The $6.55 million consists of $3.55
million of letters of credit and $3.0 million credit line for working capital.
Borrowings under the Credit Agreement bear interest at the prime rate plus 1/2
of 1%. The Company also pays a fee of 1/2 of 1% on the unused portion of the
credit facilities.
 
   
    As of September 30, 1997, the Company was not in compliance with certain
financial covenants contained in the Credit Agreement including minimum working
capital and maximum capital expenditures incurred for the year ended September
30, 1997, as defined.
    
 
   
    On October 1, 1997, the Company amended and restated the Credit Agreement
(the "Amended Credit Agreement") which amended and restated the Credit Agreement
dated March 31, 1995. The total amount of the credit available to the Company
remained at $6.55 million, and the Company and all its subsidiaries became
borrowers under the Amended Credit Agreement. The Amended Credit Agreement is
secured by an Amended and Restated Joint Security Agreement, whereby the Company
and its subsidiaries granted to the lender a first priority security interest in
all accounts, inventory and general intangibles. The Company is subject to
certain operating and financial covenants, including minimum tangible capital,
as defined and net income requirements in connection with the credit facility.
Also, the minimum working capital requirement in the Credit Agreement was
deleted.
    
 
    The Company has entered into a First Amendment to the Amended Credit
Agreement with its lender dated December 9, 1997, which provided for an increase
in the credit facility to $8.05 million.
 
   
    On December 29, 1997, the Company entered into a Second Amendment to the
Amended Credit Agreement which provides for the following: (i) the total amount
of credit available to the Company increased from $8.05 million to $9.55
million; (ii) the terms of repayment for the line of credit have been revised as
follows, $1.5 million is due July 1, 1998, $1.5 million is due October 1, 1998
and the balance, $3.0 million is due in February 1999; and (iii) the
non-compliance with the maximum capital expenditures for the year ended
September 30, 1997 was waived and certain financial covenants have been amended.
As of September 30, 1997 all amounts due under the Amended Credit Agreement were
classified in the accompanying balance sheet in accordance with the stated
maturity dates of the Amended Credit Agreement as Amended on December 29, 1997.
    
 
    In consideration of the Second Amendment to the Amended Credit Agreement the
Company has issued to the lender a warrant to purchase 25,000 shares of common
stock at the ten day average of fair market value as of December 29, 1997. The
Company also paid its lender $15,000 upon execution of the Second Amendment.
 
   
    As of September 30, 1997 and March 31, 1998, 1.7 million and $5.1 million
were outstanding under the Amended Credit Agreement, respectfully. The Company
had $3.55 million letters of credit outstanding at December 31, 1997.
    
 
   
    For the three months ended December 31, 1997, the Company recorded a loss
before interest and taxes in excess of the amount permitted under the Amended
Credit Agreement. On February 23, 1998, the
    
 
                                      F-13
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
6. LONG-TERM OBLIGATIONS AND NOTES PAYABLE (CONTINUED)
   
Company received a waiver from the lender for this event of non-compliance for
the three months ended December 31, 1997.
    
 
   
    As of March 31, 1998 the Company was out of compliance with one of its
financial covenants, pursuant to the Amended Credit Agreement, that limits the
amount of capital expenditures the Company may make during the year ending
September 30, 1998. On May 15, 1998, the Company received a waiver from the bank
for this event of non-compliance and of non-compliance with the capital
expenditure financial covenant for the remainder of fiscal 1998. As of March 31,
1998 all amounts due under the Amended Credit Agreement have been classified as
current in the accompanying balance sheet in accordance with the stated maturity
dates of the Agreement.
    
 
NOTES PAYABLE TO STOCKHOLDERS
 
    On January 10, 1996, the Company issued $500,500 in principal amount of its
10% Convertible Subordinated Debentures, the principal amount of which is
convertible at the option of the holder into shares of the Company's Common
Stock at the rate of $5.945 per share. The original maturity date of these
Debentures, June 10, 1997, has been extended by the holders pursuant to certain
letter agreements until December 10, 1998. These Debentures were issued to
persons who are significant stockholders of the Company or related to such
persons.
 
    On September 16, 1996 the Company issued an additional $350,000 in principal
amount pursuant to its 10% Subordinated Debentures due December 10, 1998 which
were issued to certain significant stockholders of the Company. In consideration
for the Debentures, the holders were issued three-year warrants to purchase an
aggregate of 42,000 shares of common stock at an exercise price of $7.50 per
share, subject to antidilution adjustments.
 
    On September 22, 1997 the Company issued an additional $500,000 in principal
amount pursuant to its 10% Subordinated Debentures due December 10, 2000 which
were issued to a stockholder of the Company. In consideration for the
Debentures, the holder was issued three-year warrants to purchase an aggregate
of 60,000 shares of common stock at an exercise price of $17.875 per share,
subject to antidilution adjustments.
 
    On December 23, 1997 the Company issued $850,000 in principal amount of its
10% Convertible Subordinated Notes due December 31, 1999 which were issued to
certain significant stockholders of the Company. The principal amount of the
notes are convertible at the option of the holder into shares of the Company's
Common Stock at the rate of $21.50 per share. Subsequent to December 31, 1997,
the Company issued an additional $50,000 in principal amount of these
Convertible Subordinated Notes on the same terms.
 
INDUSTRIAL REVENUE BONDS
 
    The Industrial Revenue Bonds (the "IRBs") outstanding consists of one note
issue. The interest rate on this note is 66.5% of the lenders bank's prime
interest rate. This note is secured by property, plant and equipment.
 
    The IRBs contain restrictive covenants including, among others, a
requirement to maintain minimum working capital, consolidated net worth and a
minimum current ratio. As of September 30, 1997, the
 
                                      F-14
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
6. LONG-TERM OBLIGATIONS AND NOTES PAYABLE (CONTINUED)
Company was not in compliance with certain of these financial covenants. The
Company has received a waiver from the trustee for these events of
non-compliance.
 
    Maturities of long-term obligations subsequent to September 30, 1997 are:
1998--$1,885,000, 1999-- $1,052,000; 2000--$655,000; thereafter $73,000.
 
7. INCOME TAXES
 
    The provision (benefit) for income taxes differs from the amount computed by
applying the statutory federal income tax rate due to the following:
 
<TABLE>
<CAPTION>
                                                                  1995       1996       1997
                                                                ---------  ---------  ---------
<S>                                                             <C>        <C>        <C>
Statutory rate................................................      (34.0)%     (34.0)%      34.0%
Increase (reduction) in taxes resulting from:
  State taxes, net of federal effect..........................       (6.0)      (6.0)       6.0
Valuation allowance...........................................       (2.0)      40.0      (38.0)
Tax reserves no longer required...............................      (48.0)        --         --
Other.........................................................       (6.0)        --         --
                                                                ---------  ---------  ---------
                                                                    (96.0)%        --%       2.0%
                                                                ---------  ---------  ---------
                                                                ---------  ---------  ---------
</TABLE>
 
    As of September 1997, the Company has a federal net operating loss
carryforward of approximately $11.1 million of which $3.2 million expires in
2009 and $1.8 million expires in 2010, $3.0 million expires in 2011, and $3.1
million in 2012. State net operating loss carry forwards of approximately $20.2
million, will expire between 1999 through 2009. These net operating loss
carryforwards are fully reserved by valuation allowances due to uncertainty
regarding their realizability.
 
    The components of the provision (benefit) for income taxes are as follows:
 
<TABLE>
<CAPTION>
                                                       1995           1996           1997
                                                   -------------  -------------  -------------
<S>                                                <C>            <C>            <C>
Current (benefit) provision:
  Federal........................................  $    (766,000) $    (363,000) $    (961,000)
  State..........................................       (135,000)      (112,000)      (299,000)
  Valuation allowance............................        901,000        475,000      1,260,000
                                                   -------------  -------------  -------------
    Total current (benefit) provision............  $          --  $          --  $          --
                                                   -------------  -------------  -------------
                                                   -------------  -------------  -------------
Deferred (benefit) provision:
  Federal........................................  $  (1,819,000) $    (592,000) $  (1,310,000)
  State..........................................       (148,000)      (183,000)      (451,000)
  Valuation allowance............................             --        776,000      1,792,000
                                                   -------------  -------------  -------------
    Total deferred (benefit) provision:..........     (1,967,000)         1,000         31,000
                                                   -------------  -------------  -------------
    Total (benefit) provision:...................  $  (1,967,000) $       1,000  $      31,000
                                                   -------------  -------------  -------------
                                                   -------------  -------------  -------------
</TABLE>
 
    During 1995, the Company received $978,000 of Federal income tax refunds. As
of September 30, 1994, the Company had established a full valuation allowance
for this amount. Accordingly, the Company reduced its valuation allowance by
$978,000 upon receipt of this amount.
 
                                      F-15
<PAGE>
                              STARMET CORPORATION
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
7. INCOME TAXES (CONTINUED)
    The Company has provided a full valuation allowance on the net deferred tax
assets as of September 30, 1997, and 1996. The Company's alternative minimum tax
credit has an unlimited life. The tax effects of significant items making up the
deferred tax liabilities and deferred tax assets, as of the end of the 1997 and
1996 fiscal years are as follows:
 
<TABLE>
<CAPTION>
                                                                        1996          1997
                                                                    ------------  ------------
<S>                                                                 <C>           <C>
Assets:
  Reserves not currently deductable for tax purpose...............  $  2,475,000  $  1,665,000
  Accrued employee health benefits................................        38,000        36,000
  Federal operating loss carryforward.............................     1,850,000     3,344,000
  State operating loss carryforwards and other assets.............     1,438,000     1,903,000
  Other...........................................................     1,867,000       460,000
  Valuation allowance.............................................    (4,653,000)   (4,082,000)
                                                                    ------------  ------------
    Total deferred tax assets.....................................     3,015,000     3,326,000
    Alternative minimum tax credit................................       407,000       407,000
                                                                    ------------  ------------
                                                                    $  3,422,000  $  3,733,000
                                                                    ------------  ------------
                                                                    ------------  ------------
Liabilities:
  Fixed asset basis difference....................................  $  2,549,000  $  2,422,000
  Employee benefits...............................................       715,000       813,000
  Other...........................................................       158,000       498,000
                                                                    ------------  ------------
                                                                    $  3,422,000  $  3,733,000
                                                                    ------------  ------------
                                                                    ------------  ------------
</TABLE>
 
                                      F-16
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
8. STOCK OPTIONS AND WARRANTS
 
STOCK OPTION PLANS
 
    As of September 30, 1997, a total of 342,680 shares of common stock have
been reserved for issuance upon exercise of options issued or issuable pursuant
to the Company's stock option plans for employees and directors. The exercise
price of options issued or issuable under such plans may not be less than 100%
of the fair market value of the shares purchasable on the date of grant of the
options. Information concerning options which have been granted under the plans
and the exercise prices thereof is set forth below. Those options with an
indicated exercise price of $3.32 expire in 2003, those with an exercise price
of $6.75, $7.00, or $8.00 expire in 2004, those with an exercise price of $6.13
expire in 2005, those with an exercise price of $7.38 expire in 2006, and those
with an exercise price of $15.56 expire in 2007, in each case on the anniversary
of the date of the grant.
 
<TABLE>
<CAPTION>
                                                                        1996                      1997
                                                1995          ------------------------  ------------------------
                                        --------------------                WEIGHTED                  WEIGHTED
                                                   RANGE OF                  AVERAGE                   AVERAGE
                                         NUMBER    EXERCISE     NUMBER      EXERCISE      NUMBER      EXERCISE
                                        OF SHARES   PRICES     OF SHARES      PRICE      OF SHARES      PRICE
                                        ---------  ---------  -----------  -----------  -----------  -----------
<S>                                     <C>        <C>        <C>          <C>          <C>          <C>
Options outstanding, beginning of
  year................................    197,800  $3.00-8.00     77,000    $    6.25      211,000    $    6.20
  Exercised...........................   (161,000)      3.00          --           --       (2,316)        6.13
  Granted.............................     50,600  6.75-7.00     136,000         6.13      128,000        11.53
  Canceled............................    (10,400) 3.00-3.25      (2,000)        3.32       (3,334)        6.88
                                        ---------  ---------  -----------       -----   -----------  -----------
Options outstanding, end of year......     77,000  3.32-8.00     211,000         6.20      333,350         8.24
                                        ---------  ---------  -----------       -----   -----------  -----------
                                        ---------             -----------               -----------
Options exercisable...................     25,719                100,444                   205,361
                                        ---------             -----------               -----------
                                        ---------             -----------               -----------
Options available for future grants...                                                       9,330
                                                                                        -----------
                                                                                        -----------
Weighted average fair value per share
  of options granted during the
  year................................             $      --                $    4.41                 $    8.18
</TABLE>
 
                                      F-17
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
8. STOCK OPTIONS AND WARRANTS (CONTINUED)
    The following summarizes certain data for options outstanding at September
30, 1997:
 
<TABLE>
<CAPTION>
                                                                                         WEIGHTED
                                                                           WEIGHTED       AVERAGE
                                                             RANGE OF       AVERAGE      REMAINING
                                               NUMBER        EXERCISE      EXERCISE     CONTRACTUAL
                                              OF SHARES       PRICES        PRICES         LIFE
                                             -----------  --------------  -----------  -------------
<S>                                          <C>          <C>             <C>          <C>
Options outstanding, end of year:..........      15,000   $         3.32   $    3.32          6.21
                                                243,350        6.13-7.00        6.60          8.02
                                                 10,000             8.00        8.00          6.79
                                                 65,000            15.56       15.56          9.85
                                             -----------  --------------  -----------        -----
                                                333,350                    $    8.24          8.26
                                             -----------                  -----------        -----
                                             -----------                  -----------        -----
Options exercisable:.......................      15,000   $         3.32   $    3.32
                                                158,651        6.13-7.00        6.60
                                                 10,000             8.00        8.00
                                                 21,710            15.56       15.56
                                             -----------  --------------  -----------
                                                205,361                    $    7.32
                                             -----------                  -----------
                                             -----------                  -----------
</TABLE>
 
    On February 20, 1998, the Board of Directors adopted the Company's 1998
Stock Plan (the "1998 Stock Plan") and the 1998 Stock Plan was approved by the
Company's stockholders at a meeting on March 18, 1998. The Company has reserved
300,000 shares of Common Stock for issuance under the 1998 Stock Plan to
employees, officers, directors and consultants of the Company.
 
    The 1998 Stock Plan provides for the granting of incentive stock options
which are intended to meet the requirements of Section 422 of the Internal
Revenue Code of 1986, as amended (the "Code"), the granting of non-qualified
stock options which do not meet the requirements of Section 422 of the Code,
opportunities to make direct purchases of the Company's Common Stock and the
making of awards of the Company's Common Stock. If any unexercised option
granted pursuant to the 1998 Stock Plan lapses or terminates for any reason, the
shares of Common Stock covered thereby are again available for subsequent option
grants under the 1998 Stock Plan.
 
    The Company has granted options to purchase 200,000 shares of Common Stock
at an exercise price of $23.67 per share, based on the market price of the
Common Stock at that time, under the 1998 Stock Plan, of which 65,000 were
granted to certain Company officers. The remaining options to purchase were
granted to all of the full-time employees of the Company.
 
   
    On November 20, 1995, the Board of Directors adopted the Company's 1995
Directors Plan (the "1995 Directors Plan") and the 1995 Directors Plan was
approved by the Company's stockholders at a meeting on May 1, 1996. The Company
has reserved 70,000 shares of Common Stock for issuance under the 1995 Directors
Plan to the Company's non-management directors.
    
 
   
    Options granted under the 1995 Directors Plan will be non-qualified options
which do not meet the requirements of Section 422 of the Code. If any
unexercised option granted pursuant to the 1995 Directors Plan lapses or
terminates for any reason, the shares of Common Stock covered thereby are again
available for subsequent option grants under the 1995 Directors Plan. The
Company has granted options to purchase 43,500 shares of Common Stock at varying
exercise prices based upon the market price of the Common Stock at the time of
grant.
    
 
                                      F-18
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
8. STOCK OPTIONS AND WARRANTS (CONTINUED)
   
    On December 21, 1981, the Board of Directors adopted the Company's Employee
Stock Plan (the "1981 Stock Plan"), which was approved by the Company's
stockholders at a meeting on February 3, 1982 and subsequently amended and
restated by the Board of Directors on August 1, 1990. The 1981 Stock Plan
provides for the granting of 255,800 shares of Common Stock to the Company's
employees, and such options are intended to be incentive stock options and meet
the requirements of Section 422 of the Code. On February 4, 1988, the Board of
Directors adopted, and amended on August 1, 1990, a Non-Qualified Stock Plan,
under which 190,000 shares of Common Stock were reserved for the granting of
non-qualified options to certain of the Company's key employees. Also, on August
1, 1990, the Company adopted a Directors Plan, under which 70,000 shares of
Common Stock were reserved for the granting of non-qualified options to the
Company's directors. No additional options will be granted under these plans;
however, 351,420 options are outstanding under these plans.
    
 
WARRANT AGREEMENTS
 
    In consideration of entering into a credit agreement with its principal bank
lender in September 1995, the Company issued the lender a warrant (the "First
Warrant") to purchase 50,000 shares (subject to adjustment pursuant to
anti-dilution provisions contained in the warrant) of the Company's Common Stock
for $5.95 per share, which was the approximate market value of the Company's
Common Stock at the date of the transaction. The First Warrant expires in 2005.
The holder of the First Warrant has the option to exercise a portion of the
warrant in a cashless transaction by surrendering the remaining portion of the
warrant as defined.
 
    In consideration of the purchase of its 10% Subordinated Notes due December
10, 1998, the Company issued the holders of the notes three-year warrants to
purchase 42,000 shares of Common Stock for $7.50 per share, which was the
approximate market value of the Company's Common Stock at the date of the
transactions. The holders of the warrants have the option to exercise a portion
of the warrant in a cashless transaction by surrendering the remaining portion
of the warrants.
 
    In consideration of the purchase of its 10% Subordinated Notes due December
10, 2000, the Company issued the holder of the Notes three-year warrants to
purchase 60,000 shares of Common Stock for $17.875 per share, which was the
approximate market value of the Company's Common Stock at the date of the
transactions.
 
    In consideration of the Second Amendment to the Amended Credit Agreement the
Company issued to the lender a warrant (the "Second Warrant") to purchase 25,000
shares (subject to adjustment pursuant to anti-dilution provisions of the
warrant) of Common Stock of the Company at an exercise price of $23.58 per
share, based on the average fair market value for the ten days ended December
29, 1997.
 
    On April 1, 1998, the Company entered into the Facility Restructuring
Agreement with its principal bank lender pursuant to which, contingent upon the
closing of a public offering, the Company received an option to make a payment
of $235,313 whereupon no further adjustments for issuances of Common Stock by
the Company will be made under the First Warrant following the closing of the
offering and no adjustments for issuances of Common Stock by the Company will be
made under the terms of the Second Warrant.
 
                                      F-19
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
8. STOCK OPTIONS AND WARRANTS (CONTINUED)
PRO FORMA STOCK-BASED COMPENSATION EXPENSE
 
    In October 1995, FASB issued SFAS No. 123, "Accounting for Stock-Based
Compensation," which sets forth a fair-value based method of recognizing
stock-based compensation expense. As permitted by SFAS No. 123, the Company has
elected to continue to apply APB No. 25 to account for its stock-based
compensation plans. Had compensation cost for awards in 1997 and 1996 under the
Company's stock-based compensation plans been determined based on fair value at
the grant dates consistent with the method set forth under SFAS No. 123, the
effect on the Company's net income and earnings per share would have been as
follows:
 
   
<TABLE>
<CAPTION>
                                                                          SEPTEMBER 30,
                                                                   ---------------------------
                                                                       1996           1997
                                                                   -------------  ------------
<S>                                                                <C>            <C>
Net income (loss):
  As reported....................................................  $  (3,037,000) $  1,482,000
  Pro forma......................................................     (3,100,000)    1,373,000
Diluted earnings per share:
  As reported....................................................  $       (0.64) $       0.30
  Pro forma......................................................          (0.65)         0.28
</TABLE>
    
 
    Because the method prescribed by SFAS No. 123 has not been applied to
options granted prior to October 1, 1995, the resulting pro forma compensation
expense may not be representative of the amount to be expensed in future years.
Pro forma compensation expense for options granted is reflected over the vesting
period; therefore future pro forma compensation expense may be greater as
additional options are granted.
 
    The fair value of each option granted was estimated on the grant date using
the Black-Scholes option pricing model with the following weighted average
assumptions: risk-free interest rates of 6.19% to 6.21% and 5.38% to 6.50% for
1997 and 1996, respectively, expected life of 10 years, expected volatility of
51% and 54% for 1997 and 1996, respectively.
 
9. PENSION PLAN
 
    The Company has a defined benefit pension plan designed to provide
retirement benefits to all employees. This plan provides pension benefits that
are based on the employee's salary and years of service. The Company's policy is
to fund the plan at a level within the range required by applicable regulations.
 
                                      F-20
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
9. PENSION PLAN (CONTINUED)
    The Company's net pension cost for 1995, 1996, and 1997 was $165,000,
$281,000, and $375,000, respectively. Net pension cost for the Company's defined
benefit plan included the following components:
 
<TABLE>
<CAPTION>
                                                       1995           1996           1997
                                                   -------------  -------------  -------------
<S>                                                <C>            <C>            <C>
Service cost (benefits earned during the
  period)........................................  $     155,000  $     183,000  $     308,000
Interest cost on projected benefit obligation....        954,000      1,022,000      1,056,000
Actual return on plan assets.....................       (985,000)      (932,000)    (1,570,000)
Net amortization and deferral....................         41,000          8,000        581,000
                                                   -------------  -------------  -------------
Net pension cost.................................  $     165,000  $     281,000  $     375,000
                                                   -------------  -------------  -------------
                                                   -------------  -------------  -------------
Assumptions used in determining the plan's funded
  status:
Discount rate....................................           8.0%           8.0%           8.0%
Expected rate of increase in compensation
  levels.........................................           5.5%           5.5%           5.5%
Expected long-term rate of return on assets......           8.5%           8.5%           8.5%
</TABLE>
 
    The following table sets forth the plan's funded status as of September 30,
1996 and September 30, 1997:
 
<TABLE>
<CAPTION>
                                                                     1996            1997
                                                                --------------  --------------
<S>                                                             <C>             <C>
Vested benefit obligation.....................................  $  (11,869,000) $  (12,421,000)
Accumulated benefit obligation................................     (11,884,000)    (12,456,000)
Projected benefit obligation..................................     (13,654,000)    (14,164,000)
Plan assets at fair value.....................................      12,517,000      14,418,000
Funded status.................................................      (1,137,000)        254,000
Unrecognized prior service costs..............................          98,000          89,000
Unrecognized net loss.........................................       2,392,000       1,698,000
                                                                --------------  --------------
Prepaid pension cost..........................................  $    1,353,000  $    2,041,000
                                                                --------------  --------------
                                                                --------------  --------------
</TABLE>
 
    Plan assets are invested under the provision of a trust agreement with a
bank in common trust funds.
 
10. POST RETIREMENT BENEFITS
 
    Effective the beginning of fiscal 1994 the Company adopted Statement of
Financial Accounting Standards No. 106 ("SFAS 106"), "Employers' Accounting for
Post Retirement Benefits Other Than Pensions." The statement requires companies
to accrue the cost of post retirement health care and life insurance benefits
within the employees' active service periods.
 
    The Company provides employees who retired from the Company prior to January
1, 1993, with at least ten years of service and under the age of 65, with Group
Health Insurance on a cost-sharing basis. Coverage for an employee's spouse or
dependents will also continue under this plan until the employee has reached age
65 at which time, the coverage ceases. In addition, the Company provides the
same employees who are at least 62 years of age with life insurance equal to
their ending annual salary up to a maximum of $50,000.
 
                                      F-21
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
10. POST RETIREMENT BENEFITS (CONTINUED)
    For employees who retire after January 1, 1993, the post-retirement benefits
do not include health insurance. In addition, the life insurance benefit, up to
a maximum of $50,000, is provided for one year after retirement.
 
    The accumulated benefit obligation of these benefits as of September 30,
1997, is approximately $767,000 ($5,000 for medical insurance and $762,000 for
life insurance). Plan assets of $401,000 in cash reserves are on hand with an
insurance company to partially cover the cost of the life insurance benefits.
The Company adopted the new standard prospectively as of October 1, 1993, and is
amortizing the transition obligation of $456,000, over three years for the
medical insurance benefits and fifteen years for the life insurance benefits.
 
    Post retirement benefit expense for fiscal 1995, 1996 and 1997 are as
follows:
 
<TABLE>
<CAPTION>
                                                               1995        1996        1997
                                                            ----------  ----------  ----------
<S>                                                         <C>         <C>         <C>
Service cost of benefits earned...........................  $    1,000  $    1,000  $    1,000
Interest cost on liability................................      57,000      58,000      59,000
Return on plan assets.....................................     (10,000)    (12,000)    (12,000)
Amortization of transition obligation.....................      48,000      24,000      24,000
                                                            ----------  ----------  ----------
Net postretirement benefit cost...........................  $   96,000  $   71,000  $   72,000
                                                            ----------  ----------  ----------
                                                            ----------  ----------  ----------
</TABLE>
 
    The following table sets forth the Benefit Plan's funded status as of
September 30, 1996 and September 30, 1997:
 
   
<TABLE>
<CAPTION>
                                                                         1996         1997
                                                                      -----------  -----------
<S>                                                                   <C>          <C>
Retirees and dependents.............................................  $  (742,000) $  (750,000)
Actives eligible to retire..........................................       (4,000)      (3,000)
                                                                      -----------  -----------
Fully eligible subtotal.............................................     (746,000)    (753,000)
Other active employees..............................................      (12,000)     (14,000)
                                                                      -----------  -----------
Accumulated post retirement benefit obligation......................     (758,000)    (767,000)
Plan asset at fair value............................................      401,000      401,000
                                                                      -----------  -----------
Funded status.......................................................     (357,000)    (366,000)
Transition obligation...............................................      266,000      267,000
                                                                      -----------  -----------
Accrued post retirement benefit cost................................  $   (91,000) $   (99,000)
                                                                      -----------  -----------
                                                                      -----------  -----------
</TABLE>
    
 
    The following actuarial assumptions were used:
 
<TABLE>
<CAPTION>
                                                          1995         1996         1997
                                                      ------------  -----------  -----------
<S>                                                   <C>           <C>          <C>
Salary increase.....................................      5.5%         5.5%         5.5%
Discount rate.......................................      7.0%         8.0%         8.0%
Return on assets....................................      3.0%         3.0%         3.0%
Medical inflation...................................     10.0%         4-9%         4-9%
</TABLE>
 
                                      F-22
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
11. COMMITMENTS AND CONTINGENCIES
 
WASTE DISPOSAL
 
    In the process of manufacturing depleted uranium products, the Company
generates low-level radioactive waste (LLRW) that must be disposed of at sites
licensed by federal, state, and local governments. At present, there is one
licensed commercial repository in the United States available for use by the
Company. For LLRW originating in Concord, no site currently exists and
provisions have been made to accommodate interim storage. State government has
the responsibility to implement the provisions of the federal Low-Level Waste
Policy Amendments Act and provide a state solution for Massachusetts companies
that generate this type of waste. Management is of the opinion that an extended
period of storage can be accommodated within existing buildings and in an
environmentally safe manner acceptable to all regulatory agencies until such
time as an acceptable site is identified.
 
CONCORD SITE REMEDIATION AND DECOMMISSIONING PLANNING REQUIREMENTS
 
   
    For a number of years, ending in 1985, the Company disposed of
manufacturing-related depleted uranium waste and the associated spent acid and
other residual materials by neutralizing with lime and discharging the
neutralized mixture to a holding basin on its premises in Concord,
Massachusetts. In 1986 the holding basin was covered with hypalon, an impervious
material used to prevent rain and surface run-off water from leaking through the
holding basin. (The Company now uses a proprietary "closed loop" process that it
developed to discontinue such discharges. The Company believes that both
practices were and are in compliance with all applicable regulations.)
Substantially all of these waste materials were the by-product of work performed
for the U.S. Army. On September 13, 1996, the Army Contract Adjustment Board
("ACAB") decided, among other things, that the costs to clean up the holding
basin materials would be funded by the Army and that the Army would be obligated
to provide transportation and disposal of the holding basin material pursuant to
a supplement to an existing contract with the Company. In a Supplemental
Memorandum of Decision dated March 5, 1997, ACAB decided to pay the Company to
transport and dispose of the holding basin material. Pursuant to ACAB's
decision, the Company contracted with the U.S. Army to remove and dispose of the
material from the holding basin and then subcontracted with Zhagrus
Environmental, Inc. ("Zhagrus") to perform such work under a contract dated May
8, 1997. Zhagrus arranged for disposal of the holding basin materials at a
disposal site operated by its parent corporation, Envirocare of Utah, Inc.
("Envirocare"). On May 11, 1998, the Company was notified by Zhagrus that
Zhagrus will incur additional costs in connection with the disposal of the
material from the holding basin as a result of the need for additional work
which must be performed by Envirocare to treat the holding basin material in
order for it to meet the conditions for burial imposed by regulations applicable
to Envirocare's license issued by the State of Utah. Zhagrus has requested that
the Company pay it to the extent of any additional costs which may be incurred
by Envirocare as a result of such additional services which may be rendered. The
Company has requested that Zhagrus provide it with further information in order
to permit the Company to determine whether it has any liability to Zhagrus under
the subcontract and to calculate the amount, if any, that the Company may be
required to pay to Zhagrus under the subcontract. The Company intends to request
a contract price modification for allowance of any such additional costs under
its contract with the U.S. Army, although there can be no assurance of the
timing and amount, if any, of any recovery of such costs from the U.S. Army. The
Company has notified Zhagrus of its proposed course of action without admitting
that the Company has any liability to Zhagrus or Envirocare for the amount of
any such additional costs which may be incurred by Zhagrus under the
subcontract. The Company has not yet been provided with sufficient information
concerning the nature and extent of any additional work which may be required to
allow proper burial by
    
 
                                      F-23
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
11. COMMITMENTS AND CONTINGENCIES (CONTINUED)
   
Envirocare. Accordingly, the Company is unable to determine whether it is
obligated to Zhagrus under the terms of its subcontract or the potential amount
involved. Accordingly, the amount of any additional costs could be material. In
the event that the Company became liable to Zhagrus for any material amount
which is not authorized to be paid by the U.S. Army, such liability could could
have a material adverse effect on the Company's business, results of operations
and financial condition.
    
 
    The Company is required to maintain certain licenses issued by the
Massachusetts Department of Public Health ("DPH") and the South Carolina
Department of Health and Environmental Control ("DHEC") in order to possess and
process depleted uranium materials at its facilities in Massachusetts and South
Carolina, respectively. Under applicable licensing regulations pertaining to
decommissioning and disposal of certain hazardous materials ("D&D") at licensed
sites, the Company submitted to the Nuclear Regulatory Commission ("NRC") and
the applicable state agencies a Decommissioning Funding Plan ("DFP") to provide
for possible future decommissioning of its facilities. The Concord Facility DFP
estimated cost is $11.7 million and the Barnwell Facility DFP estimates is $2.9
million. The Company is required to provide financial assurance for such
decommissioning pursuant to applicable regulations. The Company has satisfied
these requirements and as a result, the site licenses for both locations have
been renewed.
 
    Substantially all of the depleted uranium materials to which the DFP
requirements apply were processed by the Company for the United States
Government. Based on the terms of certain contracts that the Company entered
into with the United States Government to process such depleted uranium
materials, the Company believes that such materials continue to be owned by the
United States Government and that the United States Government is obligated,
under applicable law, to pay for its percentage of eventual D&D. The Company's
DFP reflect its position that it is obligated to provide financial assurance
only with respect to the portion of the materials which are attributable to the
Company's commercial production for parties other than the United States
Government and that this obligation has been satisfied by a letter of credit to
each geographic locations regulatory agency.
 
    The United States Army, in a memorandum of Decision dated September 13,
1996, determined pursuant to Public Law 85-804, that it should fund remediation
of the Concord holding basin site as well as D&D related to the Concord
facility, based in part on the Army's determination that the Company's
activities are essential to the national defense. This work is expected to
continue into the first half of fiscal 1998. The Company's contract with the
contractor is fixed price based on a specified volume of waste to be removed
from the basin and delivered to a burial site. If the volume of the material
removed exceeds the specified level then the Company is obligated to pay an
additional fee per cubic yard of excess material removed. At September 30, 1997,
based on current estimates, management believed that the amount of material to
be removed would not exceed the specified amount and that the fixed price
contract issued by the United States Army would be adequate to fully fund the
remediation of the basin. The Army has provided written assurances (subject to
funding appropriations) of its intention to provide funding for D&D costs at the
Concord facility in addition to the Basin under future contracts or, in the
event that no future contracts were awarded (which the Army has indicated is
unlikely in view of its current plans) under an existing contract. D&D costs for
the Company's CMI facility are adequately covered by the existing letter of
credit, which is currently in place to assure funding for potential D&D
obligations to date. The Company has no written assurance that the Army will
accept responsibility for the share of the estimated cost of D&D at its South
Carolina facility which directly resulted from production work under U.S.
government contracts on government supplied materials. However, based on the
advice of legal counsel, management believes that the Army is responsible for
its estimated share of D&D.
 
                                      F-24
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
11. COMMITMENTS AND CONTINGENCIES (CONTINUED)
    The Company is currently remediating the holding basin site at its Concord
facility and may incur costs in excess of its fixed price contract with the
United States Army for remediation of the holding basin. The Company's
management believes that any additional remediation costs would not be material
in part because the United States Army has agreed to recognize additional costs
to remediate the holding basin as allowable and recoverable costs through the
Company's overhead structure on government contracts.
 
LEGAL PROCEEDINGS
 
    On December 9, 1997, Brush Wellman, Inc. ("Brush Wellman") filed a patent
infringement suit against the Company in the United States District Court for
the District of Massachusetts (the "Massachusetts District Court") alleging that
the Company is infringing on a process patent (the "Brush Wellman Patent")
awarded to Brush Wellman for the investment casting of beryllium aluminum
alloys. Brush Wellman is seeking an injunction against the Company's alleged
patent infringement, monetary damages (including treble damages) and attorney
fees.
 
    On March 28, 1998 the U.S. Patent and Trademark Office (the "PTO") granted
the Company's request (filed January 22, 1998) for re-examination (the
"Request") of the Brush Wellman Patent. In the Request, the Company contended,
among other things, that there was sufficient "prior art" in the field of
investment castings and castings of beryllium aluminum alloys such that the
Brush Wellman Patent should not have been issued. In granting the Request, the
patent examiner agreed that the Company's cited examples of prior art raised
substantial new issues of patentability which were not decided in the prior
examination which led to granting the Brush Wellman Patent. The PTO will
undertake a process of re-examination of the validity of the Brush Wellman
Patent that, the Company anticipates, could last for an extended period. There
can be no assurance that the PTO will find the Brush Wellman Patent to be
invalid. On January 27, 1998, the Company filed in the Massachusetts District
Court a motion to stay the court case pending the outcome of the re-examination
proceeding. If the Massachusetts District Court were to grant the motion to
stay, the court case would not proceed until the conclusion of the PTO's re-
examination of the Brush Wellman Patent. Although the Company believes that its
motion to stay has merit, no assurance can be given that the Massachusetts
District Court will grant the motion.
 
    Even though the Company has been advised by patent counsel that Brush
Wellman's claims are without merit because the Brush Wellman Patent is invalid
as a matter of law due to "prior art" and due to the Company's sales of
investment cast beryllium aluminum products more than one year prior to the
Brush Wellman Patent application, no assurance can be given as to the ultimate
outcome of the lawsuit. Even if the lawsuit were not to proceed to trial, the
litigation could result in substantial costs to the Company, and an unfavorable
settlement of the lawsuit could place the Company at a competitive disadvantage.
An adverse judgment or settlement could subject the Company to significant
liabilities and expenses (E.G., reasonable royalties, lost profits, attorneys'
fees and trebling of damages for willfulness). An adverse outcome also could
cause the Company to incur substantial costs in redesigning the investment
casting process for its Beralcast products and components. Moreover, there can
be no assurance that redesign alternatives would be available to the Company,
and if available, that any redesign alternative would not place the Company at a
competitive disadvantage. The Company could be required to license the disputed
patent rights from Brush Wellman or to cease using the patented technology. Any
such license, if required, may not be available on terms acceptable or favorable
to the Company, or at all. Any of these results could have a material adverse
effect on the Company's business, financial condition and results of operations.
Even in the event of a successful outcome, the Company may incur significant
legal expenses in its defense.
 
                                      F-25
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
12. TRANSACTIONS WITH RELATED PARTIES
 
    Under the terms of a management agreement, Matthews Associates Limited
("MAL") is entitled to an annual management fee. George J. Matthews, Chairman of
the Board of Directors, and a significant stockholder, is sole owner of MAL.
These fees, as well as certain expenses of MAL that were reimbursed by the
Company, have been included in selling, general, and administrative expenses.
Management fees were $350,000 in 1997, 1996, and 1995. Mr. Matthews does not
receive any other salary or fee for services as Chairman of the Board of
Directors. The agreement expires on February 28, 2002, subject to annual
renewals as described in the agreement. In the event of termination of MAL by
the Company, the Company is obligated to pay to MAL all of the amounts due under
the agreement for the remaining term. Also see Note 6 concerning Notes Payable
to Shareholders.
 
    Wilson B. Tuffin, Vice Chairman of the Board of Directors, and a significant
stockholder, entered into an employment and consulting agreement with the
Company in November 1994, which shall continue in force until February 1999.
Pursuant to such agreement, Mr. Tuffin receives annual compensation of $105,000
for his services as a consultant to the Company. Mr. Tuffin's duties include his
service as a director and Vice Chairman of the Board of Directors of the
Company. During the term of the agreement and for a period of two years after
its expiration, Mr. Tuffin may not compete directly or indirectly with the
Company within the continental United States.
 
13. MAINTENANCE AND REPAIRS
 
    Maintenance and repair expenditures, which are charged to cost and expense
as incurred, amounted to $854,000 in 1995, $1,092,000 in 1996, and $1,536,000 in
1997.
 
14. INDUSTRY SEGMENT INFORMATION
 
    The Company is engaged in the manufacture and sale of various specialty
metal products. The Company currently operates and reports its business in three
industry segments: Uranium Services and Recycle, Specialty Metal Products, and
Depleted Uranium Penetrators.
 
                                      F-26
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
14. INDUSTRY SEGMENT INFORMATION (CONTINUED)
    Information relating to the Company's operations for the industry segments
described above for each of the three years in the period ended September 30 is
as follows:
 
<TABLE>
<CAPTION>
                                                      1995           1996           1997
                                                  -------------  -------------  -------------
<S>                                               <C>            <C>            <C>
Net sales and contract revenues:
  Specialty Metal Products......................  $  12,102,000  $  13,730,000  $  13,170,000
  Depleted Uranium Penetrators..................      1,713,000      8,775,000      9,927,000
  Uranium Services & Recycle....................      4,969,000      6,189,000      4,965,000
                                                  -------------  -------------  -------------
    Total.......................................  $  18,784,000  $  28,694,000  $  28,062,000
                                                  -------------  -------------  -------------
                                                  -------------  -------------  -------------
Operating income (loss):
  Specialty Metal Products......................  $    (341,000) $   1,432,000  $  (2,085,000)
  Depleted Uranium Penetrators..................       (237,000)      (942,000)      (415,000)
  Uranium Services & Recycle....................       (996,000)    (2,700,000)     4,661,000
                                                  -------------  -------------  -------------
    Subtotal....................................     (1,574,000)    (2,210,000)     2,161,000
General corporate expenses                              350,000        350,000        350,000
                                                  -------------  -------------  -------------
Net operating income (loss).....................     (1,924,000)    (2,560,000)     1,811,000
                                                  -------------  -------------  -------------
Other expense, net..............................        118,000        476,000        298,000
                                                  -------------  -------------  -------------
Income (loss) before taxes......................  $  (2,042,000) $  (3,036,000) $   1,513,000
                                                  -------------  -------------  -------------
                                                  -------------  -------------  -------------
Identifiable assets:
  Specialty Metal Products......................  $   5,140,000  $   6,195,000  $   6,155,000
  Depleted Uranium Penetrators..................     12,158,000      8,441,000      7,965,000
  Uranium Services & Recycle....................     16,609,000     13,749,000     14,849,000
  Corporate.....................................      6,979,000      6,733,000      5,735,000
                                                  -------------  -------------  -------------
    Total.......................................  $  40,886,000  $  35,118,000  $  34,704,000
                                                  -------------  -------------  -------------
                                                  -------------  -------------  -------------
Depreciation and amortization expenses:
  Specialty Metal Products......................  $     251,000  $     291,000  $     275,000
  Depleted Uranium Penetrators..................        443,000        519,000        498,000
  Uranium Services & Recycle....................        404,000        430,000        492,000
  Corporate.....................................        241,000        254,000        323,000
                                                  -------------  -------------  -------------
    Total.......................................  $   1,339,000  $   1,494,000  $   1,588,000
                                                  -------------  -------------  -------------
                                                  -------------  -------------  -------------
Capital expenditures:
  Specialty Metal Products......................  $      85,000  $     436,000  $     746,000
  Depleted Uranium Penetrators..................          6,000         77,000          6,000
  Uranium Services & Recycle....................        325,000        379,000        627,000
  Corporate.....................................        361,000        557,000        409,000
                                                  -------------  -------------  -------------
    Total.......................................  $     777,000  $   1,449,000  $   1,788,000
                                                  -------------  -------------  -------------
                                                  -------------  -------------  -------------
</TABLE>
 
    The Specialty Metal Products segment includes a large assortment of metal
products fabricated using foundry, extrusion, and machining capabilities
including commercial depleted uranium products and involves the production and
sale of various metal powders manufactured by the Company's patented Rotating
Electrode Process. Operations in the Depleted Uranium Penetrator industry
segment include the
 
                                      F-27
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
14. INDUSTRY SEGMENT INFORMATION (CONTINUED)
production of various penetrators (a component of armor-piercing ammunition used
in certain U.S. military gun systems) which are sold to the DOD, to prime
contractors manufacturing such ammunition for the DOD or to foreign military
operations. Revenues derived from contract research and development activities
have been included in the above segments based on the nature of the product. The
Uranium Services and Recycle segment includes the manufacture of depleted
uranium products (non-penetrator) and the recycle of low level radioactive
metal.
 
    Net sales and contract revenues by industry segment include sales to
unaffiliated customers (intersegment sales are not significant). A significant
portion of the Company's revenues has been derived from five major customers
(see Note 1). Sales to USEC are included in the Uranium Services & Recycle
industry segment. Sales to Royal Ordnance and Primex Technologies are included
in the Depleted Uranium Penetrators industry segment. Sales to Lockheed Martin
and Lockheed Idaho Falls are included in the Speciality Metal Products industry
segment.
 
    Due to the utilization among segments of common production facilities and
equipment and the involvement of a single management organization in all phases
of the Company's operations, necessary allocations have been made based on
estimates which management believes to be reasonable.
 
    Operating income includes net sales and contract revenues less operating
expenses allocated to the individual segments. General corporate expenses
represent expenses which are not of an operating nature and, therefore, are not
allocable to industry segments.
 
    Identifiable assets shown include accounts receivable, inventory, and plant
and equipment that have been allocated to each of the Company's industry
segments. Corporate assets consist primarily of cash and other assets.
 
                                      F-28
<PAGE>
                              STARMET CORPORATION
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
15. QUARTERLY RESULTS (UNAUDITED)
 
    Financial results by quarter for 1997 and 1996 are summarized below:
 
   
<TABLE>
<CAPTION>
                                                          FIRST      SECOND       THIRD      FOURTH
                                                         QUARTER     QUARTER     QUARTER     QUARTER
                                                       -----------  ---------  -----------  ---------
<S>                                                    <C>          <C>        <C>          <C>
                                                          (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
1997:
Net sales............................................   $   7,271   $   5,342   $   7,013   $   8,436
Gross profit.........................................       2,001       2,024       2,043       2,858
Operating income.....................................         566         173         399         673
Net income...........................................         509         109         293         571
Basic net income per share...........................   $    0.11   $    0.02   $    0.06   $    0.12
Diluted net income per share.........................        0.10        0.02        0.06        0.11
 
1996:
Net sales............................................   $   6,671   $  10,021   $   6,434   $   5,568
Gross profit.........................................       1,435       1,858       2,104      (1,756)
Operating income (loss)..............................         198         287         523      (3,568)
Net income (loss)....................................         109         238         249      (3,633)
Basic net income (loss) per share....................   $    0.02   $    0.05   $    0.05   $   (0.76)
Diluted net income (loss) per share..................        0.02        0.05        0.05       (0.76)
</TABLE>
    
 
    During 1997 the Company reduced certain accruals by $1,750,000 for site
remediation and waste burial costs, consisting of $670,000 in the second quarter
and $1,080,000 in the fourth quarter. Also during 1997 the Company had reduced
inventory reserves by $1,000,000, consisting of $90,000 in the first quarter,
$650,000 in the second quarter and $260,000 in the fourth quarter.
 
                                      F-29
<PAGE>


[Appears on upper left:] 
AVLIS FEED RODS FOR LASER ENRICHMENT 
[Picture of AVLIS feed rods.]


[Appears on upper right:] 
D.U. ANTI-TANK PENETRATOR ROUNDS 
[Picture of D.U. penetrator. There is an arrow pointing down.]



[Appears on middle right:] 
U.S. ARMY M1-A2 MAIN BATTLE TANK 
[Picture of M1 - A2 Main Battle Tank. There is an arrow pointing to the 
picture.]

[Appears on lower left:] 
AIRCRAFT CONTROL SURFACE COUNTERWEIGHTS 
[Picture of aircraft counterweights. There is an arrow pointing to the right.]



[Appears on lower center:] 
[Picture of tail section of DC-10. There is an arrow pointing to the picture.]


<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
    NO DEALER, SALESPERSON OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS
PROSPECTUS AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT
BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY OR THE UNDERWRITERS.
THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN
OFFER TO BUY ANY OF THE SHARES BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER
OR SOLICITATION IS NOT AUTHORIZED, OR IN WHICH THE PERSON MAKING THE OFFER OR
SOLICITATION IS NOT QUALIFIED TO DO SO, OR TO ANY PERSON TO WHOM IT IS UNLAWFUL
TO MAKE SUCH OFFER OR SOLICITATION. UNDER NO CIRCUMSTANCES SHALL THE DELIVERY OF
THIS PROSPECTUS OR ANY SALE MADE PURSUANT TO THIS PROSPECTUS CREATE ANY
IMPLICATION THAT INFORMATION CONTAINED IN THIS PROSPECTUS IS CORRECT AS OF ANY
TIME SUBSEQUENT TO THE DATE OF THIS PROSPECTUS.
 
                                 --------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                       PAGE
                                                       -----
<S>                                                 <C>
Prospectus Summary................................           3
Risk Factors......................................           9
The Company.......................................          20
Use of Proceeds...................................          21
Dividend Policy...................................          22
Price Range of Common Stock.......................          22
Capitalization....................................          23
Selected Financial Data...........................          24
Management's Discussion and Analysis of Financial
  Condition and Results of Operations.............          25
Business..........................................          38
Management........................................          58
Certain Transactions..............................          68
Principal and Selling Stockholders................          69
Description of Capital Stock......................          71
Shares Eligible for Future Sale...................          72
Underwriting......................................          74
Legal Matters.....................................          75
Experts...........................................          75
Available Information.............................          75
Index to Financial Statements.....................         F-1
</TABLE>
    
 
   
                                3,000,000 SHARES
    
 
                                     [LOGO]
 
                                  COMMON STOCK
 
                                ----------------
                                   PROSPECTUS
                                ----------------
 
                            BEAR, STEARNS & CO. INC.
 
                                  FURMAN SELZ
 
                                        , 1998
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
    The following table sets forth all expenses, other than the underwriting
discounts and commissions, payable by the Company in connection with the sale of
the Common Stock being registered:
 
   
<TABLE>
<S>                                                                  <C>
Securities and Exchange Commission Registration Fee................  $  29,770
NASD Filing Fee....................................................      8,500
Printing and Engraving.............................................          *
Legal Fees and Expenses............................................          *
Accounting Fees....................................................          *
Blue Sky Qualification Fees and Expenses...........................          *
Transfer Agent and Registrar Fees..................................          *
Miscellaneous......................................................          *
                                                                     ---------
  Total............................................................          *
                                                                     ---------
                                                                     ---------
</TABLE>
    
 
- ------------------------
 
(*) To be filed by amendment.
 
ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    Section 67 of Chapter 156B of the Massachusetts General Laws ("Section 67")
provides that a corporation may indemnify its directors and officers to the
extent specified in or authorized by (i) the articles of organization, (ii) a
by-law adopted by the stockholders, or (iii) a vote adopted by the holders of a
majority of the shares of stock entitled to vote on the election of directors.
In all instances, the extent to which a corporation provides indemnification to
its directors and officers under Section 67 is optional. Article 6 of the
Company's Amended and Restated Articles of Organization provides that the
Company shall indemnify directors and officers of the Company against
liabilities and expenses arising out of legal proceedings brought against them
by reason of their status as directors and officers or by reason of their
agreeing to serve, at the request of the Company, as a director or officer with
another organization. Under this provision, a director or officer of the Company
shall be indemnified by the Company for all costs and expenses (including
attorneys' fees), judgments, liabilities, and amounts paid in settlement of such
proceedings, even if he is not successful on the merits, if he acted in good
faith in the reasonable belief that his or her action was in the best interests
of the Company. The Board of Directors may authorize advancing litigation
expenses to a director or officer at his request upon receipt of an undertaking
by any such director or officer to repay such expenses if it is ultimately
determined that he is not entitled to indemnification for such expenses.
 
    Article 6 of the Company's Articles of Organization eliminates the personal
liability of the Company's directors to the Company or its stockholders for
monetary damages for breach of a director's fiduciary duty, except to the extent
Chapter 156B of the Massachusetts General Laws prohibits the elimination or
limitation of such liability.
 
    The underwriting agreement, a form of which is filed as exhibit 1(a) to this
Registration Statement on Form S-1 (the "Underwriting Agreement"), provides that
the Underwriters are obligated under certain circumstances to indemnify
directors, officers and controlling persons of the Company against certain
liabilities, including liabilities under the Securities Act of 1933, as amended
(the "Securities Act"). Reference is made to the form of Underwriting Agreement.
 
    The Company has obtained directors and officers liability insurance for the
benefit of its directors and certain officers.
 
                                      II-1
<PAGE>
ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES
 
    In September 1995, the Company issued a warrant to purchase 50,000 shares of
Common Stock (adjusted for the Company's two-for-one stock dividend paid on
April 7, 1997) to its lender in partial consideration for an increase in a line
of credit, without registration under the Securities Act of 1933, as amended
(the "Securities Act"), in reliance upon the exemption from such registration
provided by Section 4(2) thereof.
 
    In January 1996, the Company raised net proceeds of approximately $500,500
through the sale of convertible subordinated debentures to private investors,
two of whom are participating as Selling Stockholders in this offering, without
registration under the Securities Act in reliance upon the exemption from such
registration provided by Section 4(2) thereof.
 
    In September 1996, the Company raised net proceeds of approximately $350,000
through the sale of subordinated debentures and the issuance of warrants to
purchase 42,000 shares of Common Stock (adjusted for the Company's two-for-one
stock dividend paid on April 7, 1997) to private investors who are participating
as Selling Stockholders in this offering, without registration under the
Securities Act in reliance upon the exemption from such registration provided by
Section 4(2) thereof.
 
    In September 1997, the Company raised net proceeds of approximately $500,000
through the sale of a subordinated debenture and a warrant to purchase 60,000
shares of Common Stock to a private investor, without registration under the
Securities Act in reliance upon the exemption from such registration provided by
Section 4(2) thereof.
 
    In December 1997, the Company issued a warrant to purchase 25,000 shares of
Common Stock to its lender in consideration for an aggregate $3,000,000 increase
in the Company's line of credit and certain amendments to the Company's credit
agreement, without registration under the Securities Act in reliance upon the
exemption from such registration provided by Section 4(2) thereof.
 
    In December 1997 and January 1998, the Company raised net proceeds of
approximately $900,000 through the sale of convertible subordinated debentures
to several private investors, certain of whom are participating as Selling
Stockholders in this offering, without registration under the Securities Act in
reliance upon the exemption from such registration provided by Section 4(2)
thereof.
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
 
        1(a)   Form of Underwriting Agreement **
 
          2    Plan of Reorganization, dated June 24, 1997. (1)
 
        3(a)   Articles of Organization, as amended, of the Company. (2)
 
        3(b)   By-laws, as amended, of the Company. *
 
        4(a)   Financing Agreement, dated September 27, 1984 among Barnwell County, South Carolina, Company and
               Carolina Metals, Inc. (a wholly owned-subsidiary) relating to Barnwell County, South Carolina
               Industrial Development Revenue Bond (Nuclear Metals, Inc. project) 1984, incorporated by reference
               to File No. 0-8836, Part II, Exhibit 4(e).
 
        4(b)   Nuclear Metals, Inc. Non-Qualified Stock Option Plan as amended. (3)
 
        4(c)   Nuclear Metals, Inc. Restated Employees' Stock Option Plan as amended. (3)
 
        4(d)   Nuclear Metals, Inc. Directors' Stock Option Plan as amended. (4)
</TABLE>
    
 
                                      II-2
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
        4(e)   Warrant to Purchase 25,000 shares of the Company's Common Stock issued to State Street Bank & Trust
               Company. (4)
 
        4(f)   Common Stock Purchase Warrant dated September 16, 1996 issued to Melvin B. Chrein and schedule of
               similar warrants. (5)
 
        4(g)   Common Stock Purchase Warrant dated September 22, 1997 issued to Roger M. Marino for 60,000 shares.
               (2)
 
        4(h)   Starmet Corporation 1998 Stock Plan. (6)
 
        5(a)   Legal opinion of Peabody & Arnold LLP counsel to the Company. **
 
       10(a)   Agreement, effective March 1, 1993, between the Company and Matthews Associates Limited. (7)
 
       10(b)   Agreement, effective March 1, 1993, between the Company and Wilson B. Tuffin, as amended November
               17, 1994. (7)
 
       10(c)   Employment Agreement, effective February 8, 1995 between the Company and Robert E. Quinn. (5)
 
       10(d)   Agreement with Olin Corporation regarding large caliber penetrators. (Confidential treatment has
               been granted for certain portions of this Exhibit). (8)
 
       10(e)   Credit Agreement dated March 31, 1995 among the Company, Carolina Metals, Inc. and State Street
               Bank & Trust Company. (9)
 
       10(f)   First Amendment to Credit Agreement dated as of June 30, 1995 among the Company, Carolina Metals,
               Inc. and State Street Bank & Trust Company. (10)
 
       10(g)   Amended and Restated Revolving Credit Note dated March 31, 1995 (as amended December 24, 1996 ) of
               the Company and Carolina Metals, Inc. (5)
 
       10(h)   Second Amendment to Credit Agreement dated as of December 24, 1996 among the Company, Carolina
               Metals, Inc. and State Street Bank & Trust Company. (5)
 
       10(i)   10% Convertible Subordinated Debenture dated January 10, 1996 payable to Wiaf Investors Co. in
               amount of $334,000 and schedule of similar debentures. (5)
 
       10(j)   10% Subordinated Debenture dated September 16, 1996 payable to Melvin B. Chrein in the amount of
               $100,000 and schedule of similar debentures. (5)
 
       10(k)   Letter Agreement dated as of September 16, 1996 with Kathleen Matthews and schedule similar letter
               agreements. (5)
 
       10(l)   Joint Security Agreement dated as of March 31, 1995 among the Company, Carolina Metals, Inc. and
               State Street Bank & Trust Company. (4)
 
       10(m)   First Amendment to Joint Security Agreement dated September 26, 1995 among the Company, Carolina
               Metals, Inc. and State Street Bank & Trust Company. (4)
 
       10(n)   Patent Assignment of Security dated September 26, 1995 between the Company and State Street Bank &
               Trust Company. (4)
 
       10(o)   Trademark Assignment of Security dated September 26, 1995 between the Company and State Street Bank
               & Trust Company. (4)
 
       10(p)   Purchase order dated August 23, 1995 between the Company and Olin Corporation. (Confidential
               treatment requested as to certain portions) (4)
</TABLE>
    
 
   
                                      II-3
    
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
       10(q)   Forbearance and Amendment Agreement dated as of January 11, 1996 between the Company, Carolina
               Metals, Inc. and State Street Bank & Trust Company. (4)
 
       10(r)   Waiver of Breach of Covenant, by and among the Company, Carolina Metals, Inc. and State Street Bank
               & Trust Company. (5)
 
       10(s)   Envirocare of Utah Inc. Low-Activity Radioactive Waste Disposal Agreement. (Confidential treatment
               has been granted for certain portions of this Exhibit). (11)
 
       10(t)   Amendment of Solicitation/Modification of Contract dated March 10, 1997 issued by Department of the
               Army. (12)
 
       10(u)   Securities Pledge Agreement dated July 3, 1997 between Khosrow B. Semnoni and Nuclear Metals, Inc.
               (13)
 
       10(v)   Employment Agreement, effective October 1, 1997 between the Company and James M. Spiezio. (2)
 
       10(w)   Amended and Restated Revolving Credit Note dated October 1, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
       10(x)   Amended and Restated Credit Agreement dated October 1, 1997 among the Company, Starmet Powders,
               LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation, Starmet CMI
               Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State Street Bank &
               Trust Company. (2)
 
       10(y)   Amended and Restated Joint Security Agreement dated October 1, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
       10(z)   Patent Assignment of Security dated October 1, 1997 between the Company and State Street Bank &
               Trust. (2)
 
      10(aa)   Employment Agreement, effective October 1, 1997 between the Company and William T. Nachtrab. (2)
 
      10(bb)   Employment Agreement, effective October 1, 1997 between the Company and Douglas F. Grotheer. (2)
 
      10(cc)   Employment Agreement, effective October 1, 1997 between the Company and Kevin R. Raftery. (2)
 
      10(dd)   First Amendment to Credit Agreement dated as of December 9, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
      10(ee)   Third Amendment to Credit Agreement dated August 7, 1997 among Nuclear Metals, Inc., Carolina
               Metals, Inc. and State Street Bank & Trust Company. (2)
</TABLE>
    
 
   
                                      II-4
    
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
      10(ff)   Amendment to Employment Agreement dated October 1, 1997 between the Company and Robert E. Quinn.
               (2)
 
      10(gg)   Letter agreement with Roger M. Marino dated September 22, 1997 between the registrant and Roger M.
               Marino. (2)
 
      10(hh)   10% Subordinated Debenture dated September 22, 1997 payable to Roger M. Marino in the amount of
               $500,000. (2)
 
      10(ii)   Letter agreement dated December 23, 1997 regarding issuance of subordinated convertible debentures
               among the Company Melvin Chrein, Wiaf Investors Co., Marshall Chrein, Joshua Feibusch and George J.
               Matthews. (2)
 
      10(jj)   10% Convertible Subordinated Debenture dated December 23, 1997 payable to Wiaf Investors Co. in
               amount of $500,000 and schedule of similar debentures. (2)
 
      10(kk)   Second Amendment to Credit Agreement dated as of December 29, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
      10(ll)   Second Additional Revolving Credit Note dated December 29, 1997 among the Company, Starmet Powders,
               LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation, Starmet CMI
               Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State Street Bank &
               Trust Company. (2)
 
      10(mm)   Operating Agreement for Trio Star LLC dated December 31, 1997 among Starmet Commercial Castings,
               LLC, Advanced Products Labs, Inc. and R-Cubed Composites, Inc. (Confidential treatment requested as
               to certain portions) (14)
 
      10(nn)   Warrant Agreement dated as of December 29, 1997 between the Company and SSB Investments, Inc. ***
 
      10(oo)   Common Stock Purchase Warrant dated as of December 29, 1997 issued to SSB Investments, Inc. ***
 
      10(pp)   Promissory Note dated March 20, 1998 payable to Palmetto Federal Savings Bank of South Carolina
               from Starmet CMI Corporation in the amount of $495,000. ***
 
      10(qq)   Promissory Note dated March 20, 1998 payable to Lower Savannah Regional Development Corporation
               from Starmet CMI Corporation in the amount of $500,000. ***
 
      10(rr)   Mortgage, Security Agreement and Financing Statement dated March 20, 1998 from Starmet CMI
               Corporation to Palmetto Federal Savings Bank of South Carolina. ***
 
      10(ss)   Mortgage, Security Agreement and Financing Statement dated March 20, 1998 from Starmet CMI
               Corporation to Lower Savannah Regional Development Corporation. ***
 
      10(tt)   Letter Agreement between Starmet CMI Corporation, Palmetto Federal Savings Bank of South Carolina
               and Lower Savannah Regional Development Corporation dated March 20, 1998. ***
 
      10(uu)   Guaranty by the Company in favor of Palmetto Federal Savings Bank of South Carolina dated March 20,
               1998. ***
</TABLE>
    
 
   
                                      II-5
    
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
      10(vv)   Guaranty by the Company in favor of Lower Savannah Regional Development Corporation dated March 20,
               1998. ***
 
      10(ww)   Letter Agreement dated April 1, 1998 between the Company, State Street Bank & Trust Company and SSB
               Investment, Inc. regarding the First and Second Warrants. ***
 
      10(xx)   Holding Basin Remediation and Waste Disposal Agreement dated as of May 8, 1997, by and between the
               Company and Zhagrus Enviromental Inc. (Confidential treatment requested as to certain portions.)
               (15)
 
       11(a)   Computation re: per share earnings. **
 
         21    Subsidiaries of the Company. ***
 
       23(a)   Consent of Independent Public Accountants. *
 
       23(b)   Consent of Peabody & Arnold LLP **
 
       23(c)   Consent of Iandiorio & Teska *
 
       24(a)   Power of Attorney ***
 
       99(a)   Memorandum of Decision dated September 13, 1996 from the United States Army Contract Adjustment
               Board. (16)
</TABLE>
    
 
- ------------------------
 
*   Filed as exhibit herewith.
 
**  To be filed by amendment.
 
   
*** Previously filed.
    
 
   
(1) Incorporated by reference to Annex A to Company's proxy statement for
    special meeting held on September 29, 1997.
    
 
   
(2) Incorporated by reference to similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1997.
    
 
   
(3) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1992.
    
 
   
(4) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1995.
    
 
   
(5) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1996.
    
 
   
(6) Incorporated by reference to Exhibit 4.2 to the Company's Registration
    Statement on Form S-8 filed on May 7, 1998.
    
 
   
(7) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 1992.
    
 
   
(8) Incorporated by reference to Exhibit 10 to the Company's Quarterly Report on
    Form 10-Q for the quarter ended March 31, 1993.
    
 
   
(9) Incorporated by reference to Exhibit 10A to the Company's Form 10-Q for the
    Quarter ended March 31, 1995.
    
 
   
(10) Incorporated by reference to Exhibit 10(c) to the Company's Annual Report
    on Form 10-K for the fiscal year ended September 30, 1995.
    
 
   
(11) Incorporated by reference to Exhibit 10A to Company's Form 10-Q for the
    quarter ended March 31, 1997.
    
 
   
(12) Incorporated by reference to Exhibit 10B to Company's Form 10-Q for the
    quarter ended March 31, 1997.
    
 
   
(13) Incorporated by reference to Exhibit 10 to Company's Form 10-Q for the
    quarter ended June 30, 1997.
    
 
                                      II-6
<PAGE>
(14) Incorporated by reference to similarly numbered Exhibit filed with the
    Company's Form 10-Q for the quarter ended December 31, 1997.
 
   
(15) Incorporated by reference to Exhibit 10(A) filed with the Company's Form
    10-Q for the quarter ended March 31, 1998.
    
 
   
(16) Incorporated by reference to Exhibit 99 filed with the Company's Annual
    Report on Form 10-K for the fiscal year ended September 30, 1996.
    
 
    (b) Financial Statement Schedules.
 
Report of Independent Auditors on Schedule II--Valuation and Qualifying Accounts
 
ITEM 17. UNDERTAKINGS
 
    (a) Insofar as indemnification for liabilities arising under the Securities
Act of 1933, as amended (the "Securities Act") may be permitted to directors,
officers and controlling persons of the Company pursuant to the provisions
described under "Item 14--Indemnification of Directors and Officers" above, or
otherwise, the Company has been advised that in the opinion of the Securities
and Exchange Commission such indemnification is against public policy as
expressed in the Securities Act and is, therefore, unenforceable. In the event
that a claim for indemnification against such liabilities (other than the
payment by the Company of expenses incurred or paid by a director, officer or
controlling person of the Company in the successful defense of any action, suit
or proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Company will, unless in the
opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities
Act and will be governed by the final adjudication of such issue.
 
    (b) The undersigned Company hereby undertakes that: (1) For purposes of
determining any liability under the Securities Act, the information omitted from
the form of prospectus filed as part of this Registration Statement in reliance
upon Rule 430A and contained in a form of prospectus filed by the Company
pursuant to Rule 424(b)(1) or (4) or 497(h) under the Securities Act shall be
deemed to be part of this Registration Statement as of the time it was declared
effective. (2) For the purpose of determining any liability under the Securities
Act, each post-effective amendment that contains a form of prospectus shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
 
                                      II-7
<PAGE>
                                   SIGNATURES
 
   
    Pursuant to the requirements of the Securities Act, the Company has duly
caused this Amendment No. 1 to Registration Statement on Form S-1 to be signed
on its behalf by the undersigned, thereunto duly authorized, in the City of
Boston, Commonwealth of Massachusetts, on the 22nd day of May, 1998.
    
 
                                STARMET CORPORATION
 
                                BY:             /S/ ROBERT E. QUINN
                                     -----------------------------------------
                                                  Robert E. Quinn,
                                                   President, CEO
                                                   and Treasurer
 
   
    Pursuant to the requirements of the Securities Act, this Amendment No. 1 to
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated:
    
 
   
          SIGNATURE                        TITLE                    DATE
- ------------------------------  ---------------------------  -------------------
 
     /s/ ROBERT E. QUINN        President, CEO, Treasurer
- ------------------------------    and Director                  May 22, 1998
       Robert E. Quinn
 
              *                 Vice President Finance and
- ------------------------------    Administration                May 22, 1998
       James M. Spiezio
 
              *                 Controller
- ------------------------------                                  May 22, 1998
       Theodore Crowell
 
              *                 Chairman of the Board of
- ------------------------------    Directors                     May 22, 1998
      George J. Matthews
 
              *                 Vice Chairman
- ------------------------------                                  May 22, 1998
       Wilson B. Tuffin
 
              *                 Director
- ------------------------------                                  May 22, 1998
       Frank H. Brenton
 
              *                 Director
- ------------------------------                                  May 22, 1998
       Kenneth A. Smith
 
              *                 Director
- ------------------------------                                  May 22, 1998
       William J. Shea
 
    * /s/ ROBERT E. QUINN
             By:
- ------------------------------
       Attorney-in-Fact
 
    
 
                                      II-8
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To the Board of Directors and Stockholders of Starmet Corporation:
 
    We have audited in accordance with generally accepted auditing standards,
the financial statements included in this registration statement, and have
issued our report thereon dated November 14, 1997 (except with respect to the
matters discussed in Notes 6 and 11 as to which the date is December 29, 1997).
Our audit was made for the purpose of forming an opinion on those statements
taken as a whole. The schedule listed in the index of the financial statements
is presented for purposes of complying with the Securities and Exchange
Commission rules and is not part of the basic financial statements. This
schedule has been subjected to the auditing procedures applied in the audit of
the basic financial statements and, in our opinion, fairly states in all
material respects the financial data required to be set forth therein in
relation to the basic financial statements taken as a whole.
 
                                                             ARTHUR ANDERSEN LLP
 
Boston, Massachusetts
November 14, 1997
<PAGE>
                      STARMET CORPORATION AND SUBSIDIARIES
                    SCHEDULE II -- VALUATION AND QUALIFYING
             ACCOUNTS FOR THE THREE YEARS ENDED SEPTEMBER 30, 1997
 
<TABLE>
<CAPTION>
                                                                          ADDITIONS
                                                            BALANCE AT    CHARGED TO
                                                            BEGINNING     COSTS AND                      END
CLASSIFICATION                                               OF YEAR       EXPENSES     DEDUCTIONS     OF YEAR
- ---------------------------------------------------------  ------------  ------------  ------------  ------------
<S>                                                        <C>           <C>           <C>           <C>
YEAR ENDED SEPTEMBER 30, 1997:
Allowance for doubtful accounts..........................  $    821,000  $    --       $    400,000  $    421,000
                                                           ------------  ------------  ------------  ------------
                                                           ------------  ------------  ------------  ------------
Inventory Reserves.......................................  $  4,862,000  $    --       $  1,002,000  $  3,860,000
                                                           ------------  ------------  ------------  ------------
                                                           ------------  ------------  ------------  ------------
YEAR ENDED SEPTEMBER 30, 1996:
Allowance for doubtful accounts..........................  $    883,000  $    100,000  $    162,000  $    821,000
                                                           ------------  ------------  ------------  ------------
Inventory Reserves.......................................  $  1,522,000  $  3,340,000  $    --       $  4,862,000
                                                           ------------  ------------  ------------  ------------
                                                           ------------  ------------  ------------  ------------
YEAR ENDED SEPTEMBER 30, 1995:
Allowance for doubtful accounts..........................  $  1,290,000  $    400,000  $    807,000  $    883,000
                                                           ------------  ------------  ------------  ------------
                                                           ------------  ------------  ------------  ------------
Inventory Reserves.......................................  $  2,000,000  $    --       $    --       $  1,522,000
                                                           ------------  ------------  ------------  ------------
                                                           ------------  ------------  ------------  ------------
</TABLE>
<PAGE>
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
 
        1(a)   Form of Underwriting Agreement **
 
          2    Plan of Reorganization, dated June 24, 1997. (1)
 
        3(a)   Articles of Organization, as amended, of the Company. (2)
 
        3(b)   By-laws, as amended, of the Company. *
 
        4(a)   Financing Agreement, dated September 27, 1984 among Barnwell County, South Carolina, Company and
               Carolina Metals, Inc. (a wholly owned-subsidiary) relating to Barnwell County, South Carolina
               Industrial Development Revenue Bond (Nuclear Metals, Inc. project) 1984, incorporated by reference
               to File No. 0-8836, Part II, Exhibit 4(e).
 
        4(b)   Nuclear Metals, Inc. Non-Qualified Stock Option Plan as amended. (3)
 
        4(c)   Nuclear Metals, Inc. Restated Employees' Stock Option Plan as amended. (3)
 
        4(d)   Nuclear Metals, Inc. Directors' Stock Option Plan as amended. (4)
 
        4(e)   Warrant to Purchase 25,000 shares of the Company's Common Stock issued to State Street Bank & Trust
               Company. (4)
 
        4(f)   Common Stock Purchase Warrant dated September 16, 1996 issued to Melvin B. Chrein and schedule of
               similar warrants. (5)
 
        4(g)   Common Stock Purchase Warrant dated September 22, 1997 issued to Roger M. Marino for 60,000 shares.
               (2)
 
        4(h)   Starmet Corporation 1998 Stock Plan. (6)
 
        5(a)   Legal opinion of Peabody & Arnold LLP counsel to the Company. **
 
       10(a)   Agreement, effective March 1, 1993, between the Company and Matthews Associates Limited. (7)
 
       10(b)   Agreement, effective March 1, 1993, between the Company and Wilson B. Tuffin, as amended November
               17, 1994. (7)
 
       10(c)   Employment Agreement, effective February 8, 1995 between the Company and Robert E. Quinn. (5)
 
       10(d)   Agreement with Olin Corporation regarding large caliber penetrators. (Confidential treatment has
               been granted for certain portions of this Exhibit). (8)
 
       10(e)   Credit Agreement dated March 31, 1995 among the Company, Carolina Metals, Inc. and State Street
               Bank & Trust Company. (9)
 
       10(f)   First Amendment to Credit Agreement dated as of June 30, 1995 among the Company, Carolina Metals,
               Inc. and State Street Bank & Trust Company. (10)
 
       10(g)   Amended and Restated Revolving Credit Note dated March 31, 1995 (as amended December 24, 1996 ) of
               the Company and Carolina Metals, Inc. (5)
 
       10(h)   Second Amendment to Credit Agreement dated as of December 24, 1996 among the Company, Carolina
               Metals, Inc. and State Street Bank & Trust Company. (5)
 
       10(i)   10% Convertible Subordinated Debenture dated January 10, 1996 payable to Wiaf Investors Co. in
               amount of $334,000 and schedule of similar debentures. (5)
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
       10(j)   10% Subordinated Debenture dated September 16, 1996 payable to Melvin B. Chrein in the amount of
               $100,000 and schedule of similar debentures. (5)
 
       10(k)   Letter Agreement dated as of September 16, 1996 with Kathleen Matthews and schedule similar letter
               agreements. (5)
 
       10(l)   Joint Security Agreement dated as of March 31, 1995 among the Company, Carolina Metals, Inc. and
               State Street Bank & Trust Company. (4)
 
       10(m)   First Amendment to Joint Security Agreement dated September 26, 1995 among the Company, Carolina
               Metals, Inc. and State Street Bank & Trust Company. (4)
 
       10(n)   Patent Assignment of Security dated September 26, 1995 between the Company and State Street Bank &
               Trust Company. (4)
 
       10(o)   Trademark Assignment of Security dated September 26, 1995 between the Company and State Street Bank
               & Trust Company. (4)
 
       10(p)   Purchase order dated August 23, 1995 between the Company and Olin Corporation. (Confidential
               treatment requested as to certain portions) (4)
 
       10(q)   Forbearance and Amendment Agreement dated as of January 11, 1996 between the Company, Carolina
               Metals, Inc. and State Street Bank & Trust Company. (4)
 
       10(r)   Waiver of Breach of Covenant, by and among the Company, Carolina Metals, Inc. and State Street Bank
               & Trust Company. (5)
 
       10(s)   Envirocare of Utah Inc. Low-Activity Radioactive Waste Disposal Agreement. (Confidential treatment
               has been granted for certain portions of this Exhibit). (11)
 
       10(t)   Amendment of Solicitation/Modification of Contract dated March 10, 1997 issued by Department of the
               Army. (12)
 
       10(u)   Securities Pledge Agreement dated July 3, 1997 between Khosrow B. Semnoni and Nuclear Metals, Inc.
               (13)
 
       10(v)   Employment Agreement, effective October 1, 1997 between the Company and James M. Spiezio. (2)
 
       10(w)   Amended and Restated Revolving Credit Note dated October 1, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
       10(x)   Amended and Restated Credit Agreement dated October 1, 1997 among the Company, Starmet Powders,
               LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation, Starmet CMI
               Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State Street Bank &
               Trust Company. (2)
 
       10(y)   Amended and Restated Joint Security Agreement dated October 1, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
       10(z)   Patent Assignment of Security dated October 1, 1997 between the Company and State Street Bank &
               Trust. (2)
 
      10(aa)   Employment Agreement, effective October 1, 1997 between the Company and William T. Nachtrab. (2)
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
      10(bb)   Employment Agreement, effective October 1, 1997 between the Company and Douglas F. Grotheer. (2)
 
      10(cc)   Employment Agreement, effective October 1, 1997 between the Company and Kevin R. Raftery. (2)
 
      10(dd)   First Amendment to Credit Agreement dated as of December 9, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
      10(ee)   Third Amendment to Credit Agreement dated August 7, 1997 among Nuclear Metals, Inc., Carolina
               Metals, Inc. and State Street Bank & Trust Company. (2)
 
      10(ff)   Amendment to Employment Agreement dated October 1, 1997 between the Company and Robert E. Quinn.
               (2)
 
      10(gg)   Letter agreement with Roger M. Marino dated September 22, 1997 between the registrant and Roger M.
               Marino. (2)
 
      10(hh)   10% Subordinated Debenture dated September 22, 1997 payable to Roger Marino in the amount of
               $500,000. (2)
 
      10(ii)   Letter agreement dated December 23, 1997 regarding issuance of subordinated convertible debentures
               among the Company Melvin Chrein, WIAF Investors Co., Marshall Chrein, Joshua Feibusch and George J.
               Matthews. (2)
 
      10(jj)   10% Convertible Subordinated Debenture dated December 23, 1997 payable to Wiaf Investors Co. in
               amount of $500,000 and schedule of similar debentures. (2)
 
      10(kk)   Second Amendment to Credit Agreement dated as of December 29, 1997 among the Company, Starmet
               Powders, LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation,
               Starmet CMI Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State
               Street Bank & Trust Company. (2)
 
      10(ll)   Second Additional Revolving Credit Note dated December 29, 1997 among the Company, Starmet Powders,
               LLC, Starmet Aerocast, LLC, Starmet Commercial Castings, LLC, Starmet NMI Corporation, Starmet CMI
               Corporation, Starmet Holdings Corporation, NMI Foreign Sales Corporation and State Street Bank &
               Trust Company. (2)
 
      10(mm)   Operating Agreement for Trio Star LLC dated December 31, 1997 among Starmet Commercial Castings
               Corp., Advanced Products Labs, Inc. and R-Cubed Composites, Inc. (Confidential treatment requested
               as to certain portions) (14)
 
      10(nn)   Warrant Agreement dated as of December 29, 1997 between the Company and SSB Investments, Inc. ***
 
      10(oo)   Common Stock Purchase Warrant dated as of December 29, 1997 issued to SSB Investments, Inc. ***
 
      10(pp)   Promissory Note dated March 20, 1998 payable to Palmetto Federal Savings Bank of South Carolina
               from Starmet CMI Corporation in the amount of $495,000. ***
 
      10(qq)   Promissory Note dated March 20, 1998 payable to Lower Savannah Regional Development Corporation
               from Starmet CMI Corporation in the amount of $500,000. ***
 
      10(rr)   Mortgage, Security Agreement and Financing Statement dated March 20, 1998 from Starmet CMI
               Corporation to Palmetto Federal Savings Bank of South Carolina. ***
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
EXHIBIT NO.                                                 DOCUMENT
- -------------  ---------------------------------------------------------------------------------------------------
<C>            <S>
      10(ss)   Mortgage, Security Agreement and Financing Statement dated March 20, 1998 from Starmet CMI
               Corporation to Lower Savannah Regional Development Corporation. ***
 
      10(tt)   Letter Agreement between Starmet CMI Corporation, Palmetto Federal Savings Bank of South Carolina
               and Lower Savannah Regional Development Corporation dated March 20, 1998. ***
 
      10(uu)   Guaranty by the Company in favor of Palmetto Federal Savings Bank of South Carolina dated March 20,
               1998. ***
 
      10(vv)   Guaranty by the Company in favor of Lower Savannah Regional Development Corporation dated March 20,
               1998. ***
 
      10(ww)   Letter Agreement dated April 1, 1998 between the Company, State Street Bank & Trust Company and SSB
               Investment, Inc. regarding the First and Second Warrants. ***
 
      10(xx)   Holding Basin Remediation and Waste Disposal Agreement dated as of May 8, 1997, by and between the
               Company and Zhagrus Enviromental Inc. (Confidential treatment requested as to certain portions.)
               (15)
 
       11(a)   Computation re: per share earnings. **
 
         21    Subsidiaries of the Company. ***
 
       23(a)   Consent of Independent Public Accountants. *
 
       23(b)   Consent of Peabody & Arnold LLP **
 
       23(c)   Consent of Iandiorio & Teska *
 
       24(a)   Power of Attorney ***
 
       99(a)   Memorandum of Decision dated September 13, 1996 from the United States Army Contract Adjustment
               Board. (16)
</TABLE>
    
 
- ------------------------
 
*   Filed as exhibit herewith.
 
**  To be filed by amendment.
 
   
*** Previously filed.
    
 
   
(1) Incorporated by reference to Annex A to Company's proxy statement for
    special meeting held on September 29, 1997.
    
 
   
(2) Incorporated by reference to similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1997.
    
 
   
(3) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1992.
    
 
   
(4) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1995.
    
 
   
(5) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Annual Report on Form 10-K for the fiscal year ended September 30,
    1996.
    
 
   
(6) Incorporated by reference to Exhibit 4.2 to the Company's Registration
    Statement on Form S-8 filed on May 7, 1998.
    
 
   
(7) Incorporated by reference to the similarly numbered Exhibit filed with the
    Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 1992.
    
 
   
(8) Incorporated by reference to Exhibit 10 to the Company's Quarterly Report on
    Form 10-Q for the quarter ended March 31, 1993.
    
<PAGE>
   
(9) Incorporated by reference to Exhibit 10A to the Company's Form 10-Q for the
    Quarter ended March 31, 1995.
    
 
   
(10) Incorporated by reference to Exhibit 10(c) to the Company's Annual Report
    on Form 10-K for the fiscal year ended September 30, 1995.
    
 
   
(11) Incorporated by reference to Exhibit 10A to Company's Form 10-Q for the
    quarter ended March 31, 1997.
    
 
   
(12) Incorporated by reference to Exhibit 10B to Company's Form 10-Q for the
    quarter ended March 31, 1997.
    
 
   
(13) Incorporated by reference to Exhibit 10 to Company's Form 10-Q for the
    quarter ended June 30, 1997.
    
 
(14) Incorporated by reference to similarly numbered Exhibit filed with the
    Company's Form 10-Q for the quarter ended December 31, 1997.
 
   
(15) Incorporated by reference to Exhibit 10(A) filed with the Company's Form
    10-Q for the quarter ended March 31, 1998.
    
 
   
(16) Incorporated by reference to Exhibit 99 filed with the Company's Annual
    Report on Form 10-K for the fiscal year ended September 30, 1996.
    


<PAGE>

                                     BY-LAWS

                                       of

                               STARMET CORPORATION

                                    ARTICLE I

                                  STOCKHOLDERS

    1. Place of Meetings. All meetings of stockholders shall be held at the
principal office of the Corporation unless a different place (anywhere in the
United States) is fixed by the Directors or the President and stated in the
notice of the meeting.

    2. Annual Meetings. An annual meeting of the stockholders entitled to vote
shall be held on the 1st Wednesday in February at two o'clock in the afternoon.
If it shall not have been held on the date fixed or by adjournment therefrom, a
meeting in lieu of the annual meeting shall be held within six months after the
end of the fiscal year.

    3. Special Meetings. Special meetings of the stockholders entitled to vote
may be called by the Chairman of the Board of Directors, President, or by a
majority of the Directors, and shall be called by the Clerk, or in case of the
death, absence, incapacity, or refusal of the Clerk, by any other officer, upon
written application of one or more stockholders who are entitled to vote and who
hold at least one-tenth part in interest of the capital stock entitled to vote
at the meeting, stating the time, place, and purpose of the meeting.

    4. Notice of Meetings. A written notice of every meeting of stockholders,
stating the place, day and hour thereof, and the purpose for which the meeting
is called shall be given by the Clerk or other person calling the meeting at
least seven days before the meeting, to each stockholder entitled to vote
thereat and to each stockholder, who, by the Articles of Organization or By-Laws
is entitled to such notice, by leaving such notice with him or at his residence
or usual place of business, or by mailing it postage prepaid and addressed to
him at his address as it appears upon the books of the corporation. No notice of
the time, pace or purpose of any regular or special meeting of the stockholders
need be given to any stockholder if a written waiver of notice executed before
or after the meeting by the stockholder, or his attorney thereunto authorized,
is filed with the records of the meeting.

    5. Quorum of Stockholders. At any meeting of the stockholders 51% in
interest of all stock issued and outstanding and entitled to vote shall
constitute a quorum. The vote of a majority in interest of any quorum shall be
sufficient to transact business unless otherwise provided by law, or by the
Articles of Organization or by the By-Laws.

    6. Adjournments. Any meeting of the stockholders may be adjourned to any
other time and to any other place in the United States by the stockholders
present or 


<PAGE>


represented at the meeting, although less than a quorum, or by any officer
entitled to preside or to act as Clerk of such meeting, if no stockholder is
present. It shall not be necessary to notify any stockholder of any adjournment.
Any business which could have been transacted at any meeting of the stockholders
as originally called may be transacted at any adjournment thereof.

    7. Votes and Proxies. At all meetings of the stockholders, they shall have
one vote for each share of stock having voting power owned by them. Stockholders
may vote in person or by proxy. No proxy which is dated more than six months
before the meeting named therein shall be accepted. Proxies shall be filed with
the Clerk of the meeting, or of any adjournment thereof, before being voted.
Except as otherwise limited therein, proxies shall entitle the persons named
therein to vote at any adjournment of such meeting but shall not be valid after
final adjournment of such meeting. A proxy with respect to stock held in the
name of two or more persons shall be valid if executed by one of them unless at
or prior to exercise of the proxy the corporation receives a specific written
notice to the contrary from any one of them. A proxy purporting to be executed
by or on behalf of a stockholder shall be deemed valid unless challenged at or
prior to its exercise.

    8. Action at Meeting. When a quorum is present, the holders of a majority of
the stock present or represented and voting on a matter, (or if there are two or
more classes of stock entitle to vote as separate classes, then in the case of
each such class, the holders of a majority of the stock of that class present or
represented and voting on a mater) except where a larger vote is required by
law, the Articles of Organization or these By-Laws, shall decide any matter to
be voted on by the stockholders. Any election by stockholders shall be
determined by a plurality of the votes cast by the stockholders entitled to vote
at the election. No ballot shall be required for such election unless requested
by a stockholder present or represented at the meeting and entitled to vote in
the election. The corporation shall not directly or indirectly vote any share of
its stock.

                                   ARTICLE II

                               BOARD OF DIRECTORS

    1. Powers. The business of the corporation shall be managed by a Board of
Directors who may execute all the powers of the corporation except as otherwise
provided b law, by the Articles of Organization or by these By-Laws. in the
event of a vacancy in the Board of Directors, the remaining Directors, except as
otherwise provided by law, may exercise the powers of the full Board until the
vacancy is filled.

    2. Election. A board of Directors consisting of such number not less than
three nor more than seven as may be fixed by the Incorporators or Stockholders,
shall be elected by the stockholders at each annual meeting. At any meeting
stockholders may decrease to not less than three or increase the number of
Directors. A Director need not be a stockholder. No officer need be a Director.
Tow or more offices may be held by any person.


                                       2


<PAGE>


    3. Tenure. The Directors shall hold office until the next annual meeting of
stockholders and thereafter until their successors are chosen and qualified,
except as in these by-laws otherwise provided. Any Director may resign by giving
written notice of his resignation to the President, Clerk or Directors, and such
resignation shall become effective upon receipt unless another time is specified
therein. Any Director may at any time be removed without cause by the
affirmative vote of the stockholders holding a majority of shares entitled to
vote in the election of such officer or Director.

    4. Meetings. Regular meetings of the Directors may be held without call or
notice at such places and at such times as the Directors may from time to time
determine, provided that any Director who is absent when such determination is
made shall be given notice of the determination. A regular meeting of the
Directors may be held without a call or notice at the same place as the annual
meeting of stockholders, or the special meeting held in lieu thereof, following
such meeting of stockholders.

    Special meetings of the Directors may be held at any time and place
designated in a call by the Chairman of the Board of Directors, President,
Treasurer or two or more Directors.

    5. Notice of Meetings. Notice of all special meetings of the Directors shall
be given to each Director by the Secretary, or if there be no Secretary, by the
Clerk, or Assistant Clerk, or in case of the death, absence, incapacity or
refusal of such persons, by the officer or one of the Directors calling the
meeting. Notice shall be given to each Director in person or by telephone or by
telegram sent to his business or home address at least twenty-four hours in
advance of the meeting, or by written notice mailed to his business or home
address at least forty-eight hours in advance of the meeting.

    6. Quorum of Directors. At any meeting of the Directors a majority of the
Directors at the time in office, so long as there shall be three or more holding
office, shall constitute a quorum, but a less number may adjourn any meeting
from time to time without further notice. Unless otherwise provided by law or by
the by-laws, business may be transacted by vote of a majority of those in
attendance at any meeting at which there is a quorum.

    7. Vacancies. Any vacancy in the Board of Directors or other office held by
a person elected by the stockholders may be filed by them at a meeting called
for the purpose. unless and until so filled, a vacancy in any office may be
filled for the unexpired balance of the term by vote of the Directors or by
appointment by all of the Directors if less than a quorum shall remain in
office. When any officer is, in the opinion of the Directors, unable to perform
his duties, they may by vote appoint a temporary officer to act until further
vote by them, with power to perform all or part of the duties of such officer.

    8. Chairman of the Board of Directors. The Board of Directors may, by vote
of a majority of the Directors then in office, elect a Chairman of the Board of
Directors from 


                                       3

<PAGE>


among its members, who shall serve at the pleasure of the Board and shall
preside at all meetings of the Directors and at all meetings of the
Stockholders.

    9. Committees. The Directors may, by vote of a majority of the Directors
then in office, elect from their number an executive or other committees and may
be like vote delegate thereto some or all of their powers except those which by
law, the Articles of Organization or these By-Laws they are prohibited from
delegating. Except as the Directors may otherwise determine, any such committee
may make rules for the conduct of its business, but unless otherwise provided by
the Directors or in such rules, its business shall be conducted as nearly as may
be in the same manner as is provided by these By-Laws for the Directors.

                                   ARTICLE III

                                    Officers

    1. Enumeration. The officers of the corporation shall consist of a
President, a Treasurer, a Clerk, and such other officers, including one or more
Vice Presidents, Assistant Treasurers, Assistant Clerks and Secretary as the
Directors may determine.

    2. Election. The President, Treasurer and Clerk shall be elected annually by
the Directors at their first meeting following the annual meeting of
stockholders. Other officers may be chosen by the Directors at such meeting or
at any other meeting.

    3. Qualification. The President may, but need not be, a Director. No officer
need be a stockholder. Any two or more offices may be held by the same person,
provided that the President and Clerk shall not be the same person. The Clerk
shall be a resident of Massachusetts unless the corporation has a resident agent
appointed for the purpose of service of process. Any officer may be required by
the Directors to give bond for the faithful performance of his duties to the
corporation in such amount and with such sureties as the Directors may
determine.

    4. Tenure. Except as otherwise provided by law, by the Articles of
Organization or by these By-Laws, the President, Treasurer and Clerk shall hold
office until the first meeting of the Directors following the annual meeting of
stockholders and thereafter until his successor is chosen and qualified; and all
other officers shall hold office until the first meeting of the Directors
following the annual meeting of stockholders, unless a shorter term is specified
in the vote choosing or appointing them. Any officer may resign by delivering
his written resignation to the corporation at its principal office or to the
President, Clerk or Secretary, and such resignation shall be effective upon
receipt unless it is specified to be effective at some other time or upon the
happening of some other event.

                                       4

<PAGE>


    5. Removal. The Directors may remove any officer without cause by a vote of
a majority of the entire number of Directors then in office, provided, that an
officer may be removed for cause only after reasonable notice and opportunity to
be heard by the Board of Directors prior to action thereon.

    6. President and Vice President. The President shall be the chief executive
officer of the corporation and shall, subject to the direction of the Directors,
have general supervision and control of its business. Unless otherwise provided
by the Directors he shall preside, when present, at all meetings of stockholders
and of the Directors.

    Any Vice President shall have such powers as the Directors may from time to
time designate.

    7. Treasurer and Assistant Treasurers. The Treasurer shall, subject to the
direction of the Directors, have general charge of the financial affairs of the
corporation and shall cause to be kept accurate books of account. He shall have
custody of all funds, securities, and valuable documents of the corporation,
except as the Directors may otherwise provide.

    Any Assistant Treasurer shall have such powers as the Directors may from
time to time designate.

    8. Clerk and Assistant Clerks. The Clerk shall keep a record of the meetings
of the stockholders. Unless a Transfer Agent is appointed, the Clerk shall keep
or cause to be kept in Massachusetts, at the principal office of the corporation
or at his office, the stock and transfer records of the corporation, in which
are contained the names of all stockholders and the record address, and the
amount of stock held by each.

    In case a Secretary is not elected, the Clerk shall keep a record of the
meetings of the Directors.

    Any Assistant Clerk shall have such powers as the Directors may from time to
time designate. In the absence of the Clerk from any meeting of stockholders, an
Assistant Clerk, if one be elected, otherwise a Temporary Clerk designated by
the person presiding at the meeting, shall perform the duties of the Clerk.

    9. Secretary and Assistant Secretaries. If a Secretary is elected, he shall
keep a record of the meetings of the Directors and in his absence, an Assistant
Secretary, if one be elected, otherwise a Temporary Secretary designated by the
person presiding at the meeting, shall keep a record of the meetings of the
Directors.

    Any Assistant Secretary shall have such powers as the Directors may from
time to time designate.

                                       5

<PAGE>


    10. Other Powers and Duties. Each officer shall, subject to these By-Laws,
have in addition to the duties and powers specifically set forth in these
By-Laws, such duties and powers as are customarily incident to his office, and
such duties and powers as the Directors may from time to time designate.

                                   ARTICLE IV

                                  Capital Stock

    1. Certificates of Stock. Each stockholder shall be entitled to a
certificate of the capital stock of the corporation in such form as may be
prescribed from time to time by the Directors. The certificate shall be signed
by the President or a Vice President, and by the Treasurer or an Assistant
Treasurer, but when a certificate is countersigned by a transfer agent or a
registrar, other than a Director, officer or employee of the corporation, such
signatures may be facsimiles. In case any officer who has signed or whose
facsimile signature has been placed on such certificate shall have ceased to be
such officer before such certificate is issued, it may be issued by the
corporation with the same effect as if he were such officer at the time of its
issue.

    Every certificate for shares of stock which are subject to any restriction
on transfer pursuant to the Articles of Organization, the By-Laws or any
agreement to which the corporation is a party, shall have the restriction noted
conspicuously on the certificate and shall also set forth on the face or back
either the full text of the restriction or a statement of the existence of such
restriction and a statement that the corporation will furnish a copy of the
holder of such certificate upon written request and without charge. Every
certificate issued when the corporation is authorized to issue more than one
class or series of stock shall set forth on its face or back either the full
text of the preferences, voting powers, qualifications and special and relative
rights of the shares of each class and series authorized to be issued or a
statement of the existence of such preferences, powers, qualifications and
rights, and a statement that the corporation will furnish a copy thereof to the
holder of such certificate upon written request and without charge.

    2. Transfer on Books. All shares of stock shall be transferable on the books
of the corporation except when closed as provided by the By-Laws, upon surrender
of the certificate therefor duly endorsed, or accompanied by a separate document
containing an assignment of the certificate or a power of attorney to sell,
assign, or transfer the same, or the shares represented thereby, signed by the
person appearing by the certificate to be the owner of the shares represented
thereby, with all such endorsements or signatures verified if required by the
corporation. The corporation shall be entitled to recognize as exclusive the
rights of a person registered on its books as the owner of legal title to
shares, to the full extent permitted by law. The stock-transfer and other books
of the corporation may be closed by order of the 

                                       6

<PAGE>


Directors for thirty days or any lesser period previous to any meeting of
stockholders or any day appointed for the payment of a dividend or for any other
purpose.

    3. Lost Certificates. In case any certificate of stock of the corporation
shall be lost or destroyed, a new certificate may be issued in lieu thereof on
reasonable evidence of such loss or destruction, and upon such indemnity being
given within the limits permitted by law as the Directors may require for the
protection of the corporation or any transfer agent or registrar.

    4. Issue of Stock. Unless otherwise voted by the incorporators or
stockholders, the whole or any part of any unissued balance of the authorized
capital stock of the corporation or the whole or any part of any capital stock
of the corporation held in its treasury may be issued or disposed of by vote of
the Directors in such manner, for such consideration, and on such terms as the
Directors may determine.

                                    ARTICLE V

                            Miscellaneous Provisions

    1. Fiscal Year. The fiscal year of the corporation shall end on the last day
of September of each year.

    2. Seal. The seal of the corporation shall bear its name and the year of its
incorporation, or such other device or inscription as the Directors may
determine, and initially shall be as indicated on the right margin hereof.

    3. Execution of Instruments. All deeds, leases, transfers, contracts, bonds,
notes and other obligations authorized to be executed by an officer of the
corporation in its behalf shall be signed by the President or the Treasurer
except as the Directors may generally or in particular cases otherwise
determine.

    4. Voting of Securities. Except as the Directors may otherwise designate,
the President or Treasurer may waive notice of, and appoint any person or
persons to act as proxy or attorney in fact for this corporation (with or
without power of substitution) at any meeting of stockholders or shareholders of
any other corporation or organization, the securities of which may be held by
this corporation.

                                   ARTICLE VI

                                   Amendments

                                       7

<PAGE>


    These By-Laws may be amended at any annual or special meeting by voting of
the stockholders holding a majority of the shares having voting power, provided
that the nature or substance of the proposed amendment or repeal shall be stated
in the notice of the meeting. These By-Laws may be amended by a majority of the
Board of Directors then in office. Not later than the time of giving notice of
the meeting of stockholders next following the adoption of an amendment by the
Directors, notice thereof stating the substance of such change shall be given to
the stockholders. The authority of the Board of Directors to amend the By-Laws
shall be subject to the following limitations:

    No change may be made in the date fixed in the By-Laws for an annual meeting
    of stockholders within sixty (60) days before the date stated in the
    By-Laws.

    Notice of any change in the date of an annual meeting of stockholders shall
    be given to all stockholders at least twenty (20) days before the new date
    fixed.


                                       8


<PAGE>


                                                                 Exhibit 23(a)


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


   As independent public accountants, we hereby consent to the use of our 
reports dated November 14, 1997 (except with respect to the matters discussed 
in Notes 6 and 11 as to which the date is December 29, 1997) and to all 
references to our Firm included in or made a part of this registration 
statement.



Arthur Andersen LLP


Boston, Massachusetts
May 22, 1998

<PAGE>
                                 EXHIBIT 23(c)
                         CONSENT OF IANDIORIO & TESKA

    We consent to the inclusion in this registration statement on Form S-1 
(File No. 333-49629) and any amendments thereto (the "Registration 
Statement") of our opinion that Brush Wellman, Inc.'s ("Brush Wellman") 
claims against Starmet Corporation (the "Company") alleging that the Company 
is infringing on a process patent (U.S. Patent No. 5,642,773) (the "Brush 
Wellman Patent") awarded to Brush Wellman for the investment casting of 
beryllium aluminum alloys are without merit because the Brush Wellman Patent 
is invalid as a matter of law due to "prior art" and because the alleged 
invention described in the Brush Wellman Patent was manufactured and sold 
more than one year before the application resulting in the Brush Wellman 
Patent was filed. We also consent to the reference to our firm under the 
caption "Risk Factors -- Pending Beralcast Patent Litigation; Patents and 
Other Intellectual Property" and "Legal Matters."

Iandiorio & Teska

/s/ Kirk Teska

Waltham, Massachusetts
May 20,1998



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