MODTECH INC
424B4, 1997-11-06
PREFABRICATED WOOD BLDGS & COMPONENTS
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<PAGE>   1
                                                  This filing is made pursuant
                                                  to Rule 424(b)(4) under
                                                  the Securities Act of
                                                  1933 in connection with
                                                  Registration No. 333-37473

PROSPECTUS
MODTECH LOGO
   
                                1,750,000 SHARES
    
                                  MODTECH, INC.

                                  COMMON STOCK
 
   
     Of the 1,750,000 shares of Common Stock offered hereby (the "Offering"),
1,000,000 shares are being sold by Modtech, Inc. ("Modtech" or the "Company")
and 750,000 shares are being sold by certain shareholders of the Company (the
"Selling Shareholders"). See "Principal and Selling Shareholders." The Company
will not receive any of the proceeds from the sale of shares by the Selling
Shareholders. See "Use of Proceeds."
    
 
   
     The Company's Common Stock is listed on The Nasdaq National Market under
the symbol "MODT." On November 3, 1997, the last reported sales price for a
share of the Company's Common Stock on The Nasdaq National Market was $22.625.
See "Market Information and Related Matters."
    
                            ------------------------
 
   
     SEE "RISK FACTORS" BEGINNING AT PAGE 7 FOR CERTAIN INFORMATION WHICH SHOULD
BE CAREFULLY 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>
<S>                               <C>              <C>              <C>              <C>
======================================================================================================
                                                     UNDERWRITING       PROCEEDS        PROCEEDS TO
                                      PRICE TO       DISCOUNTS AND       TO THE         THE SELLING
                                     THE PUBLIC     COMMISSIONS(1)     COMPANY(2)      SHAREHOLDERS
- ------------------------------------------------------------------------------------------------------
Per Share.........................      $20.00           $1.10           $18.90           $18.90
- ------------------------------------------------------------------------------------------------------
Total(3)..........................    $35,000,000     $1,925,000       $18,900,000      $14,175,000
======================================================================================================
</TABLE>
    
 
(1) The Company and the Selling Shareholders 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 (including expenses of the
    Selling Shareholders) estimated at $300,000.
 
   
(3) Certain of the Selling Shareholders have granted the Underwriters an option,
    exercisable within 30 days of the date hereof, to purchase up to 262,500
    additional shares of the Company's Common Stock, at the same price and
    subject to the same Underwriting Discounts and Commissions as set forth
    above, solely to cover over-allotments, if any. If the Underwriters exercise
    such option in full, the total Price to the Public, Underwriting Discounts
    and Commissions and Proceeds to the Selling Shareholders will be
    $40,250,000, $2,213,750 and $19,136,250, 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
said offer and to reject orders in whole or in part. It is expected that
delivery of the Common Stock will be made on or about November 7, 1997, at the
offices of Bear, Stearns & Co. Inc., 245 Park Avenue, New York, New York 10167.
    
 
BEAR, STEARNS & CO. INC.
 
                               CRUTTENDEN ROTH
                                 INCORPORATED
                                                    L.H. FRIEND, WEINRESS,
                                                        FRANKSON & PRESSON, INC.
 
   
                THE DATE OF THIS PROSPECTUS IS NOVEMBER 4, 1997.
    
<PAGE>   2
 
                                [ PHOTOGRAPHS ]
 
     CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK,
INCLUDING OVER-ALLOTMENTS, 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.
SEE "UNDERWRITING."
 
                                        2
<PAGE>   3
 
                               PROSPECTUS SUMMARY
 
     The following summary should be read in conjunction with, and is qualified
in its entirety by, the more detailed information and financial statements and
notes thereto appearing elsewhere in this Prospectus. Unless otherwise
indicated, the information contained in this Prospectus assumes that there has
been no exercise of the Underwriters' over-allotment option and options to
purchase shares of Common Stock granted or to be granted under the Company's
stock option plans.
 
                                  THE COMPANY
 
     Modtech designs, manufactures, markets and installs modular relocatable
classrooms. Based upon 1996 net sales, the Company believes that it is the
largest manufacturer of modular relocatable classrooms in California. The
Company's classrooms are sold primarily to California school districts, and to
third parties and the State of California principally for lease to California's
school districts. Modtech's products include standardized classrooms, as well as
customized structures for use as libraries, gymnasiums, computer rooms and
bathroom facilities. The Company believes that its modular structures can be
substituted for virtually any part of a school. The Company's classrooms are
engineered and constructed in accordance with structural and seismic safety
specifications adopted by the California Department of State Architects which
regulates all school construction on public land, standards which are more
rigorous than the requirements for other portable units.
 
     In recent years, population growth and demographic and geographic shifts in
California student enrollments have necessitated the addition of more classrooms
at existing schools and the construction of new schools to serve new residential
developments. However, as a consequence of budget shortfalls experienced by the
State of California and many California school districts from 1991 through the
middle of 1996, the level of funding for the construction of schools declined,
even though school enrollments increased annually during this period. As a
result, classrooms in many California school districts currently are reported to
be among the most crowded in the nation, with an average of 29 students per
class, compared to a national average class size of 17. Without the addition of
new classrooms, the average class size will continue to grow since the
California Department of Finance has estimated that student enrollment in grades
kindergarten through 12 will increase by approximately 18% from 1995 through
2005.
 
     Funding for new school construction is provided primarily at the State
level, (i) through annual budget allocations of funds derived from general
revenue sources and (ii) from the sale of statewide bond issues. As the State of
California budget deficit has ameliorated, the legislature has increased funding
for the addition of classrooms in an effort to reduce the average number of
students per classroom. For the 1996 - 1997 school year, the State spent $822
million in funding under the California Class Size Reduction Program adopted in
1996, including $200 million specifically for facilities which may be
relocatable classrooms. The Company believes that State funding for the
reduction of class sizes during the 1997 - 1998 school year will be as high as
$1.5 billion for both general operations and school facilities. In addition to
funding out of its annual budget, the State is empowered to issue general
obligation bonds to finance, among other things, the construction of school
facilities. The California State School Facilities Conference Committee recently
adopted a package of bills which, if approved by the Legislature, would, among
other things, place an $8.2 billion school construction bond on the June 1998
California ballot. If these proposals are on the ballot and are approved by the
voters, $4 billion of the bonds would be sold in 1998, followed by $4.2 billion
in 2000, the proceeds of which would be used to construct and modernize existing
school facilities, acquire land to build new schools, and construct or add
classrooms. See "Business -- Legislation and Funding."
 
     These factors have combined to increase the demand for modular relocatable
classrooms, which cost significantly less and take much less time to construct
and install than conventional school facilities, and which permit a school
district to relocate the units as student enrollments shift. In addition, the
Company's products provide added flexibility to school districts in financing
the costs of adding classroom space, since modular relocatable classrooms are
considered personal property which can be financed out of a district's operating
budget in addition to its capital budget. In recognition of these advantages,
California legislation currently requires, with certain exceptions, that at
least 30% of all new classroom space added using State funds must be relocatable
structures. See "Business -- Legislation and Funding."
 
                                        3
<PAGE>   4
 
     The Company currently operates a total of six production lines at four
plants, which serve both the Northern and Southern California markets. The
Company's manufacturing process is vertically integrated in that the Company
fabricates many of the components used in the construction of its classrooms.
The Company believes that this capability enables it to be one of the low-cost
producers in California of standardized modular relocatable classrooms, and
provides it with a competitive advantage over other manufacturers who must use
third parties to supply these parts.
 
     During recent periods, the Company's net sales and profitability have
increased. Net sales increased from $19.4 million for the year ended December
31, 1995, to $49.9 million for the year ended December 31, 1996. During the
first six months of 1997, net sales were $58.9 million, as compared to $12.7
million during the same period of 1996. Net income for the year ended December
31, 1996 and the six months ended June 30, 1997 was $4.3 million and $5.2
million, respectively. The Company attributes these recent improved results to
the heightened demand for modular relocatable classrooms in California, the
Company's ability to increase production capacity to accommodate this demand,
its efficient and cost effective manufacturing processes, and the quality and
attractive pricing of its classrooms.
 
     The Company's strategy is to expand its production capacity to meet the
increased demand for modular relocatable classrooms, to increase its share of
the California market for such classrooms, and to continue to develop new
product designs and manufacturing alternatives. In addition, the Company intends
to increase its efforts to expand the market for its classrooms to include
neighboring states and to develop and more extensively market additional
non-classroom products. Recent diversification initiatives have included the
acquisition of a manufacturing operation that enhanced the Company's ability to
produce relocatable buildings for sale to commercial customers and modular
shelters for electronics used in the telecommunications industry. The Company
also recently hired a salesperson to market the Company's relocatable classrooms
to customers in the States of Arizona and Nevada and to private schools and
child care providers within California.
 
     Organized in 1982, the Company is a California corporation whose executive
offices are located at 2830 Barrett Avenue, Perris, California 92571, and its
telephone number is (909) 943-4014. The Company maintains a website that
contains information concerning its products and personnel and copies of its
most recent press releases, the address of which is http://www.modt.com.
 
                                        4
<PAGE>   5
 
                              RECENT DEVELOPMENTS
 
     The Company issued a press release on October 21, 1997, announcing
operating results, for the third quarter ended September 30, 1997. Net sales for
the third quarter ended September 30, 1997 were $39.8 million, compared to $14.3
million for the quarter ended September 30, 1996, an increase of 178%. Net sales
for the nine months ended September 30, 1997 were $98.7 million, compared to
$27.0 million for the nine months ended September 30, 1996, an increase of 266%.
Operating income for the third quarter of 1997 was $7.2 million, compared to
operating income of $1.5 million for the third quarter of 1996. Net income for
the third quarter of 1997 was $4.4 million, or $0.45 per share, compared to $1.3
million, or $0.14 per share, for the third quarter of 1996, and net income for
the nine months ended September 30, 1997 was $9.7 million, or $1.00 per share,
compared to $2.2 million, or $0.24 per share, for the nine months ended
September 30, 1996. Net income per share is computed on a fully diluted basis.
At September 30, 1997, the Company's backlog was $85.0 million, compared to
$80.4 million at June 30, 1997 and $40.0 million at September 30, 1996.
 
                                  THE OFFERING
 
   
<TABLE>
<S>                                             <C>
Common Stock offered by the Company...........  1,000,000 shares
Common Stock offered by the Selling
  Shareholders................................  750,000 shares
Common Stock to be outstanding after the
  Offering(1).................................  9,705,836 shares
Use of proceeds by the Company................  Debt repayment,  additions to working capital
                                                and other general corporate purposes. See
                                                "Use of Proceeds."
Nasdaq National Market symbol.................  MODT
</TABLE>
    
 
- ---------------
(1) Excludes 1,206,933 shares issuable upon exercise of outstanding options, and
    196,667 shares available for the grant of additional options under the
    Company's stock option plans. See "Management -- Stock Options."
 
                                        5
<PAGE>   6
 
                      SUMMARY FINANCIAL AND OPERATING DATA
                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
 
     The historical income statement data, certain of the selected operating
data, and the balance sheet data set forth below have been derived from the
Company's audited and unaudited financial statements included elsewhere herein
and should be read in conjunction with such financial statements and the notes
thereto.
 
<TABLE>
<CAPTION>
                                                                                SIX MONTHS ENDED
                                               YEAR ENDED DECEMBER 31,              JUNE 30,
                                           -------------------------------     -------------------
                                            1994        1995        1996        1996        1997
                                           -------     -------     -------     -------     -------
<S>                                        <C>         <C>         <C>         <C>         <C>
INCOME STATEMENT DATA:
Net sales................................  $20,355     $19,386     $49,886     $12,704     $58,906
Gross profit.............................    2,589       2,985       7,257       1,842      11,218
Income from operations...................    1,035       1,372       4,912         994       9,036
Interest expense, net....................     (471)       (387)       (422)       (107)       (549)
Net income...............................      602         965       4,269         889       5,195
Net income available for Common
  Stock(1)...............................      602         799       4,221         841       5,195
Earnings per common share(2).............  $  0.11     $  0.12     $  0.47     $  0.10     $  0.55
Weighted average shares outstanding
  (in thousands)(2)......................    5,294       6,712       9,041       8,750       9,370
 
SELECTED OPERATING DATA:
Gross margin.............................     12.7%       15.4%       14.5%       14.5%       19.0%
Operating margin.........................      5.1%        7.1%        9.8%        7.8%       15.3%
Standard classrooms sold(3)..............      680         605       1,610         413       2,066
Backlog at period end(4).................  $ 7,000     $ 4,100     $58,000     $20,400     $80,400
</TABLE>
 
   
<TABLE>
<CAPTION>
                                                                          AS OF JUNE 30, 1997
                                                                        ------------------------
                                                                        ACTUAL    AS ADJUSTED(6)
                                                                        -------   --------------
<S>                                                                     <C>       <C>
BALANCE SHEET DATA
Working capital.......................................................  $26,647      $ 31,915
Total assets..........................................................   58,387        63,655
Total liabilities.....................................................   37,800        24,468
Long-term debt, excluding current portion(5)..........................   15,132         1,800
Shareholders' equity..................................................   20,587        39,187
</TABLE>
    
 
- ---------------
(1) After deduction of preferred stock dividends of $166,000 and $48,000 for the
    years ended December 31, 1995 and 1996, respectively, and $48,000 for the
    six months ended June 30, 1996. No preferred stock was outstanding during
    the six months ended June 30, 1997, and none currently is outstanding. See
    Note 11 of Notes to Financial Statements.
 
(2) Computed on a fully diluted basis.
 
(3) Determined by dividing the total square footage of floors sold during the
    year by 960 square feet, the floor area of a standard classroom. See
    "Business -- Modular Classrooms."
 
(4) The Company manufactures classrooms to fill existing orders only, and not
    for inventory. Backlog consists of sales orders scheduled for completion
    during the next 12 months.
 
(5) For a description of the Company's long-term debt, see Notes 5 and 6 of
    Notes to Financial Statements.
 
   
(6) Adjusted to reflect the sale of 1,000,000 shares of Common Stock by the
    Company in the Offering at an offering price of $20.00 per share, and the
    application of the estimated net proceeds therefrom. See "Use of Proceeds"
    and "Capitalization."
    
 
                                        6
<PAGE>   7
 
                                  RISK FACTORS
 
     In addition to the other information in this Prospectus, the following
risks and other factors should be considered carefully in evaluating the Company
and its business before purchasing any of the Common Stock offered hereby. The
statements contained in this Prospectus that are not purely historical are
forward-looking statements within the meaning of the Private Securities
Litigation Reform Act of 1995, including but not limited to statements regarding
the Company's assumptions, expectations, anticipations, hopes, beliefs, plans,
proposals, intentions or strategies regarding the future. Actual results could
differ materially from those projected in any forward-looking statements as a
result of a number of factors, including those detailed in this "Risk Factors"
portion of this Prospectus as well as those set forth elsewhere in this
Prospectus. The forward-looking statements are made as of the date of this
Prospectus and the Company assumes no obligation to update the forward-looking
statements, or to update the reasons why actual results could differ materially
from those projected in the forward-looking statements.
 
LEGISLATION AND SCHOOL FUNDING
 
     The demand for modular relocatable classrooms in California is affected by
various statutes which, among other things, prescribe the way in which all
school classrooms to be constructed on public lands must be designed and
engineered, the methods by which the Company's customers, primarily individual
school districts, obtain funding for the construction of new facilities, and the
manner in which available funding is to be spent. The Company's business
therefore is, to a material degree, dependent upon the legislative and
educational policies and financial condition of the State of California. Funding
for new school construction and rehabilitation of existing schools by California
school districts currently is provided primarily at the State level, through
annual allocations of funds derived from general revenue sources and statewide
bond issues. In addition, school districts obtain funding for the purchase or
lease of school facilities through the imposition of Developers' Fees and local
bond issuances. The availability of this funding is subject to financial and
political considerations which vary from district to district. The use of
funding provided by the State is also affected by the legislative policies of
the State of California. For example, California legislation currently requires,
with certain exceptions, that 30% of new classroom space added using State funds
must be relocatable structures. The Company's classroom units qualify as
relocatable structures. There are, however, alternative structures that are less
modular in nature than the Company's classrooms that may also satisfy this
legislative requirement. Shortages of financial resources at either State or
local levels, or changes in the legislative or educational policies of the State
of California, could have a material adverse effect upon the Company.
 
     The California State School Facilities Conference Committee recently
adopted a package of proposals that, if approved by the Legislature, would
provide, among other things, for the inclusion on the June 1998 ballot of an
$8.2 billion bond issue for school construction and a proposed amendment to the
California Constitution that would reduce the percentage of voter approval
required for local bond issues from that currently specified in Proposition 13.
In addition, the provision of California legislation which requires that 30% of
all new classrooms added using State funds be relocatable structures would be
eliminated. As currently drafted, approval of each of these proposals is linked,
and in order for any of them to become effective the $8.2 billion bond issue
must be approved by a majority of the California voters and the proposed
Constitutional Amendment must be approved by two-thirds of the California
voters. See "Business -- Legislation and Funding."
 
CYCLICAL INDUSTRY
 
     The Company's modular classrooms are purchased predominately by school
districts in California. The ability of California school districts to finance
the acquisition of the Company's products is largely dependent upon the level of
funding available from the State. Although the need for additional classrooms
remained unabated in the early to mid 1990's as California school districts
continued to encounter student population growth, the increasing budget
shortfalls that the State and many California school districts were experiencing
imposed severe limitations on the levels of funding for the construction of
schools. As a result, the Company experienced declines in net sales, and
reported losses from 1991 through 1993, forcing it to reduce the number of
production lines in operation from six at the end of 1991 to two at the end of
1993 and to reduce its workforce by approximately 53%.
 
                                        7
<PAGE>   8
 
     The State of California recently has increased the amount of funds
available for expenditures on school facilities, and the market for the
Company's modular relocatable classrooms has grown rapidly, particularly since
the implementation of the State's Class Size Reduction Program in November 1996.
Since the beginning of 1995, the Company has re-opened three production lines
and acquired a fourth line, resulting in six production lines in operation at
the end of 1996. The Company currently is completing a seventh line and plans to
open another line in 1998. However, there can be no assurance that the funding
for school construction provided by the State of California will continue to
increase, or even remain at current levels, in future periods particularly since
the Class Size Reduction Program has already produced the desired result for
over half of the student population in the target grade levels of kindergarten
through the third grade. If demand for modular classrooms declines, or the
Company's share of the market is reduced, the Company may again be faced with
excess production capacity. On the other hand, if demand for the Company's
classrooms were to increase to levels beyond current expectations, the Company's
growth would be restricted by its production capacity unless and until the
Company were able to construct or acquire additional production lines, at costs
and over a period of time which might prove substantial.
 
     Primarily as a result of the adoption of the Class Size Reduction Program,
the Company's net sales and profitability increased significantly in 1996, and
have continued to increase during the first six months of 1997. Future operating
results could be affected by a number of factors, including changes in the
legislative and educational policies and financial condition of the State of
California, reductions in sales and/or margins caused by competitive pressures
and other factors, increases in operating costs including costs of raw
materials, production, supplies, personnel, equipment and transportation, and
increases in governmental regulation imposed under federal, state or local laws,
including regulations applicable to environmental, labor and trade matters. For
these reasons, among others, there can be no assurance that the Company will be
able to sustain rates of revenue growth and profitability in future periods that
are comparable to those experienced in the past one and one-half years.
 
CONCENTRATION OF CUSTOMERS
 
     The Company's sales to date have been almost exclusively limited to sales
of classrooms to customers in California, and the Company has sold only a
limited number of classrooms to private schools and child care facilities. The
Company markets and sells its modular classrooms primarily to California school
districts, as well as to the State of California and leasing companies who lease
the classrooms principally to school districts. Given the costs of
transportation, the Company believes that it can compete cost-effectively
primarily within a radius of approximately 300 miles from any one of its
production facilities. Although parts of Nevada and Arizona are within such
distance, neither Nevada nor Arizona has a legislative and regulatory
environment regarding the construction and financing of schools that is
comparable to that which has given rise to the modular relocatable classroom
industry in California. During the year ended December 31, 1996, approximately
94% of the Company's net sales was attributable to the sale of classrooms, with
sales of classrooms to individual school districts and third party lessors to
school districts representing approximately 81% of the Company's net sales, and
sales of classrooms directly to the State of California accounting for
approximately 13% of net sales for the year. Unless and until the Company is
successful in implementing its strategy for increasing sales out of state and of
non-classroom products, the Company's operating results will continue to be
largely dependent on sales of modular relocatable classrooms to California
school districts.
 
MANAGEMENT OF GROWTH
 
   
     The Company's business has grown rapidly during the past one and one-half
years and such growth has placed and, if sustained, will continue to place
significant demands on the Company's management and resources. The Company's
work force increased to 877 employees at June 30, 1997, from 93 employees at
December 31, 1995. The Company's future operating results will depend on
management's ability to manage future growth and there can be no assurance that
efforts to manage future growth will be successful. Should such growth continue,
it is likely that the Company would be required to hire and train additional
technical, marketing and administrative personnel, implement additional
operating and financial controls, install additional reporting and management
information systems for order processing, system monitoring, customer service
and financial reporting, and otherwise improve coordination between the design
and engineering, marketing, sales, manufacturing and finance functions.
    
 
                                        8
<PAGE>   9
 
     From time to time the Company has reviewed possible acquisitions of other
companies, with a view to expanding its operations to other geographic areas or
acquiring the capability of manufacturing other, non-classroom products.
Although it is not currently a party to any agreement or understanding with
respect to any prospective acquisition, the Company expects that it will
continue to explore possible acquisitions for the purpose of, among other
things, implementing its strategies for reducing its dependence on sales of
classrooms within California. Should the Company determine to make an
acquisition to extend its operations outside of California, expand its
non-classroom product line, increase its production capacity and/or market share
within California, or add the capability of manufacturing more of the components
used in the construction of its classrooms through one or more acquisitions, the
completion of any such acquisition could require sizeable amounts of capital and
is likely to involve the diversion of management's attention for other business
concerns. There can be no assurance that any acquired operations will be
integrated efficiently or prove profitable, and unexpected problems encountered
in connection with any such acquisition could have a material adverse effect on
the Company.
 
DEPENDENCE ON KEY PERSONNEL
 
     The Company is dependent upon its executive officers, Evan M. Gruber and
Michael G. Rhodes, and the loss of either of these key executive officers could
have a material adverse effect on the Company. Although the Company has entered
into an employment agreement with Mr. Gruber which continues through December
31, 1999, each of the these key executive officers may voluntarily terminate his
employment with the Company at any time. The continued success of the Company
also will depend upon its ability to attract and retain skilled employees. See
"Management."
 
PRODUCT SPECIFICATIONS AND REGULATION
 
     Most of the Company's contracts require the Company to build classrooms
which meet certain established state mandated function and manufacturing
specifications. Under such contracts, which are typically fixed-price contracts,
the Company assumes the liability for correcting, without additional
compensation, any deficiencies which cause its classrooms to fail inspection and
certification tests. The Company relies upon its experience and expertise to
evaluate the potential for such liability inherent in prospective projects and
to price its bids accordingly. In addition, the Company attempts to minimize the
risk of additional exposure by adopting strict quality control standards, and
subjecting its units under construction to extensive testing under the
supervision of inspectors hired by the Company's customers. To date, the
Company's operating performance has not been materially impacted adversely by
such liability. However, should the Company incur such liability significantly
in excess of that estimated, its profitability would be adversely affected. See
"Business -- Marketing; -- Manufacturing; -- Regulation."
 
COMPETITION
 
     The modular relocatable classroom industry is highly competitive, with the
market divided among a number of privately owned companies each of whose share
of the market the Company believes is smaller than that of the Company. In
addition, other firms with resources greater than the Company's, including
mobile home and modular office builders and recreational vehicle manufacturers,
may enter into competition with the Company in the future. Furthermore, as the
Company attempts to implement its strategy to increase sales outside of
California and to increase its sales of non-classroom products, it is
anticipated that it will encounter new competitors with more experience and a
more established position than the Company in those markets. There can be no
assurance that the Company will not encounter increased competition in the
future which could limit the Company's ability to maintain or increase its
market share and could adversely effect the Company's prices, gross margins, and
overall operating results. See "Business -- Competition."
 
FLUCTUATIONS IN QUARTERLY OPERATING RESULTS; SEASONALITY
 
     The Company's quarterly revenue typically has been highest in the second
and third quarters of the year when school districts generally place a large
number of orders for modular classrooms to be delivered in time for the upcoming
school year. Additionally, first and fourth quarter revenues typically are lower
due to a
 
                                        9
<PAGE>   10
 
greater number of holidays and days of inclement weather during such periods.
The Company's operating results may vary significantly from quarter to quarter
due to a variety of factors including legislative and funding developments,
changes in the Company's product and customer mix, the availability and cost of
raw materials, the introduction of new products by the Company or its
competitors, pricing pressures, general economic and industry conditions that
affect customer demand, and other factors. The Company's results of operations
for any quarter would be adversely affected if orders are not shipped in any
quarter as anticipated.
 
FLUCTUATION OF STOCK PRICE
 
     In recent periods, there has been a relatively limited market for the
Company's Common Stock, and the market price for a share of the Company's Common
Stock has fluctuated significantly. See "Market Information and Related
Matters." Although both the number of shares of the Common Stock outstanding in
the public float and the number of the Company's shareholders 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
results of operations, trends in the Company's industry and market conditions
generally, and the limited and sporadic trading volume of the Company's Common
Stock which has been experienced from time to time, have caused, and may
continue to cause, the market price of the Company's Common Stock to fluctuate
significantly. In addition, 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.
 
SHARES ELIGIBLE FOR FUTURE SALE
 
   
     Of the 9,705,836 shares of the Company's Common Stock to be outstanding
immediately following this Offering, 5,899,081 shares are held by affiliates of
the Company but are not subject to the restrictions on resale under the
Securities Act of 1933, as amended (the "Securities Act"), having been
registered for public resale from time to time under the Securities Act. All of
these shares (with certain limited exceptions) are subject to agreements which
restrict their public sale for 180 days after the date of this Prospectus
without prior approval of Bear, Stearns & Co. Inc. In addition, the Company has
registered 1,650,000 shares of Common Stock issuable upon exercise of options
granted and to be granted under the Company's existing stock option plans. Sales
of substantial amounts of these shares, or even the potential for such sales,
could have a depressive effect on the market price of shares of the Company's
Common Stock and could impair the Company's ability to raise capital through the
sale of its equity securities.
    
 
CONTROL BY EXISTING MANAGEMENT
 
   
     Upon completion of this Offering, the current executive officers and
directors of the Company will continue to own or have voting control over, in
the aggregate, approximately 35% of the shares of the Company's Common Stock
then outstanding. Accordingly, the Company's current management will continue to
be able to significantly influence the outcome of elections of directors and
other matters presented to a vote of shareholders. See "Principal and Selling
Shareholders."
    
 
ABILITY TO ISSUE PREFERRED STOCK; ANTI-TAKEOVER DEVICES
 
     The Company is authorized to issue up to 5,000,000 shares of Preferred
Stock in one or more series, the terms of which may be determined at the time of
issuance by the Board of Directors, without further action by the Company's
shareholders, and may include voting rights, preferences as to dividends and
liquidation, conversion and redemptive rights and sinking fund provisions.
Although the Company currently has no plans to issue any shares of Preferred
Stock, the issuance of Preferred Stock in the future could affect the rights of
the holders of the Company's Common Stock and thereby reduce the value of the
Common Stock. In particular, specific rights granted to future holders of
Preferred Stock could be used to restrict the Company's ability to merge with or
sell its assets to a third party, or otherwise delay, discourage, or prevent a
change in
 
                                       10
<PAGE>   11
 
control of the Company. In addition, the Company's Articles of Incorporation
provide for the elimination of cumulative voting and the classification of the
Company's Board of Directors in certain circumstances, provisions which are also
likely to delay, discourage, or prevent a change in control of the Company. The
Company has been advised by the Underwriters that the number of holders of the
Company's Common Stock is likely to increase to at least 800 as a consequence of
this Offering, in which event the Company intends to cause these provisions of
its Articles of Incorporation to become operative by electing a classified Board
of Directors, without cumulative voting, at the next annual meeting of
shareholders.
 
                                USE OF PROCEEDS
 
   
     The net proceeds to the Company from the sale of the 1,000,000 shares of
Common Stock offered by the Company are estimated to be approximately $18.6
million, based on an offering price of $20.00 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 Shareholders.
    
 
     The Company plans to use a portion of the net proceeds to repay amounts
then outstanding under the Company's $20.0 million revolving loan agreement with
a bank (the "Credit Facility"). As of September 30, 1997, borrowings of $12.6
million were outstanding under the Credit Facility. Amounts borrowed under the
Credit Facility are secured by substantially all of the Company's assets, bear
interest at a floating rate equal to 0.75% above the lender's reference rate,
and must be repaid in full by September 30, 2000. The Company expects that it
will continue to use the Credit Facility as a source of working capital after
this Offering is consummated.
 
     The remaining net proceeds are expected to be used as additions to working
capital to finance higher levels of accounts receivable and inventories, and for
other general corporate purposes. Pending the uses described herein, it is
anticipated that all or a portion of the net proceeds will be invested in high
quality income-producing instruments such as short-term corporate investment
grade or United States Government interest-bearing securities.
 
                                       11
<PAGE>   12
 
                     MARKET INFORMATION AND RELATED MATTERS
 
     The Company's Common Stock is currently traded on The Nasdaq National
Market under the symbol "MODT." The following table sets forth on a per share
basis the high and low closing sales prices per share for the Common Stock on
The Nasdaq National Market for the periods indicated.
 
   
<TABLE>
<CAPTION>
                                                                    HIGH         LOW
                                                                   -------     -------
        <S>                                                        <C>         <C>
        1995
        First Quarter............................................  $ 1.750     $ 1.125
        Second Quarter...........................................    1.875       1.125
        Third Quarter............................................    2.625       1.188
        Fourth Quarter...........................................    2.375       1.875
 
        1996
        First Quarter............................................    3.625       2.250
        Second Quarter...........................................    5.750       2.875
        Third Quarter............................................    9.625       3.500
        Fourth Quarter...........................................    9.500       6.875
 
        1997
        First Quarter............................................   13.875       7.875
        Second Quarter...........................................   13.000      10.625
        Third Quarter............................................   25.250      11.625
        Fourth Quarter (through November 3)......................   29.250      21.625
</TABLE>
    
 
   
     On November 3, 1997, the closing sales price on The Nasdaq National Market
for a share of the Company's Common Stock was $22.625. The approximate number of
holders of record of the Company's Common Stock as of September 30, 1997, was
78.
    
 
                                DIVIDEND POLICY
 
     The Company has not paid cash dividends on its Common Stock since 1990. The
Board of Directors currently intends to follow a policy of retaining all
earnings, if any, to finance the continued growth and development of the
Company's business and does not anticipate paying cash dividends in the
foreseeable future. Any future determination as to the payment of cash dividends
will be dependent upon the Company's financial condition and results of
operations and other factors deemed relevant by the Board of Directors.
Moreover, the Company's Credit Facility currently prohibits the payment of cash
dividends.
 
                                       12
<PAGE>   13
 
                                 CAPITALIZATION
 
   
     The following table sets forth the capitalization of the Company as of June
30, 1997, and as adjusted to give effect to receipt by the Company of the net
proceeds from the sale of the 1,000,000 shares of Common Stock offered by the
Company hereby (at a public offering price of $20.00 per share) and the
anticipated application of the net proceeds therefrom. See "Use of Proceeds."
    
 
   
<TABLE>
<CAPTION>
                                                                              JUNE 30, 1997
                                                                         -----------------------
                                                                         ACTUAL      AS ADJUSTED
                                                                         -------     -----------
                                                                             (IN THOUSANDS)
<S>                                                                      <C>         <C>
Long-term debt (1):
  Bank debt (less current portion)....................................   $13,332       $    --
  Industrial development bonds........................................     1,800         1,800
                                                                         -------       -------
          Total long-term debt........................................    15,132         1,800
                                                                         =======       =======
 
Shareholders' equity:
  Preferred Stock, $0.01 par value: 5,000,000 shares authorized; none
     issued and outstanding...........................................        --            --
  Common Stock, $0.01 par value: 20,000,000 shares authorized,
     8,679,000 shares outstanding(2), (9,679,000 shares outstanding as
     adjusted)........................................................     4,043         4,053
Additional paid-in capital............................................    15,744        34,334
Retained earnings.....................................................       800           800
                                                                         -------       -------
     Total shareholders' equity.......................................    20,587        39,187
                                                                         -------       -------
          Total capitalization........................................   $35,719       $40,987
                                                                         =======       =======
</TABLE>
    
 
- ---------------
 
(1) For a description of the Company's long-term debt, see Notes 5 and 6 of
    Notes to Financial Statements.
 
(2) Excludes 1,206,933 shares issuable upon exercise of currently outstanding
    options, and 196,667 shares available for the grant of additional options
    under the Company's stock option plans. See "Management -- Stock Options."
 
                                       13
<PAGE>   14
 
                            SELECTED FINANCIAL DATA
                 (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
 
     The selected income statement and balance sheet data set forth below for
the three years ended December 31, 1994, 1995 and 1996 have been derived from
the audited financial statements of the Company included elsewhere herein. The
selected income statement and balance sheet data set forth below for the years
ended December 31, 1992 and 1993 have been derived from audited financial
statements of the Company that are not included herein. The selected income
statement and balance sheet data for the six month periods ended June 30, 1996
and 1997 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 the Company's operations for such periods.
The selected income statement and balance sheet data set forth below should be
read in conjunction with those financial statements (including the notes
thereto) and with "Management's Discussion and Analysis of Results of Operations
and Financial Condition" also included elsewhere herein. The results of the
Company's operations for the six months ended June 30, 1997 are not necessarily
indicative of results to be expected for any future period or the fiscal year
ending December 31, 1997.
 
<TABLE>
<CAPTION>
                                                                                                              SIX MONTHS ENDED
                                                              YEAR ENDED DECEMBER 31,                             JUNE 30,
                                              -------------------------------------------------------       ---------------------
                                               1992        1993        1994        1995        1996          1996          1997
                                              -------     -------     -------     -------     -------       -------       -------
<S>                                           <C>         <C>         <C>         <C>         <C>           <C>           <C>
INCOME STATEMENT DATA:
Net sales...................................  $31,192     $19,658     $20,355     $19,386     $49,886       $12,704       $58,906
Cost of sales...............................   30,601      21,764      17,766      16,401      42,629        10,862        47,688
                                              -------     -------     -------     -------     -------       -------       -------
Gross profit (loss).........................      591      (2,106)      2,589       2,985       7,257         1,842        11,218
Selling, general and administrative
  expenses..................................    2,193       1,871       1,554       1,613       2,345           848         2,182
Restructuring charge(1).....................       --       2,470          --          --          --            --            --
                                              -------     -------     -------     -------     -------       -------       -------
Income (loss) from operations...............   (1,602)     (6,447)      1,035       1,372       4,912           994         9,036
Interest expense, net.......................     (705)       (565)       (471)       (387)       (422)         (107)         (549)
Other income (expense)......................      (19)         47          42          (1)        (13)           22            64
                                              -------     -------     -------     -------     -------       -------       -------
Income (loss) before income taxes...........   (2,326)     (6,965)        606         984       4,477           909         8,551
Provision for income taxes..................       40           1           4          19         208            20         3,356
                                              -------     -------     -------     -------     -------       -------       -------
Net income (loss)...........................   (2,366)     (6,966)        602         965       4,269           889         5,195
                                              =======     =======     =======     =======     =======       =======       =======
Net income (loss) available for Common
  Stock(2)..................................  $(2,366)    $(6,966)    $   602     $   799     $ 4,221       $   841       $ 5,195
                                              =======     =======     =======     =======     =======       =======       =======
Earnings (loss) per common share(3).........  $ (0.64)    $ (1.97)    $  0.11     $  0.12     $  0.47       $  0.10       $  0.55
Weighted average shares outstanding (in
  thousands)(3).............................    3,701       3,529       5,294       6,712       9,041         8,750         9,370
</TABLE>
 
<TABLE>
<CAPTION>
                                                                AS OF DECEMBER 31,                             AS OF JUNE 30,
                                              -------------------------------------------------------       ---------------------
                                               1992        1993        1994        1995        1996          1996          1997
                                              -------     -------     -------     -------     -------       -------       -------
<S>                                           <C>         <C>         <C>         <C>         <C>           <C>           <C>
BALANCE SHEET DATA:
Working capital.............................  $ 6,263     $ 3,063     $ 4,403     $ 4,383     $14,069       $ 7,738       $26,647
Total assets................................   28,903      16,620      15,919      15,154      34,029        21,833        58,387
Total liabilities...........................   17,193      11,889       7,900       6,411      18,716        11,712        37,800
Long-term debt, excluding current
  portion(4)................................    6,075       6,506       4,400       3,590       7,844         5,642        15,132
Shareholders' equity........................   11,709       4,732       8,019       8,743      15,313        10,121        20,587
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                              SIX MONTHS ENDED
                                                              YEAR ENDED DECEMBER 31,                             JUNE 30,
                                              -------------------------------------------------------       ---------------------
                                               1992        1993        1994        1995        1996          1996          1997
                                              -------     -------     -------     -------     -------       -------       -------
<S>                                           <C>         <C>         <C>         <C>         <C>           <C>           <C>
SELECTED OPERATING DATA:
Gross margin................................      1.9%      (10.7%)      12.7%       15.4%       14.5%         14.5%         19.0%
Operating margin............................     (5.1%)     (32.8%)       5.1%        7.1%        9.8%          7.8%         15.3%
Standard classrooms sold(5).................      899         698         680         605       1,610           413         2,066
Backlog at period end(6)....................  $13,000     $ 6,000     $ 7,000     $ 4,100     $58,000       $20,400       $80,400
</TABLE>
 
- ---------------
 
(1) Reflects the write-off of intangible assets related to the Company's 1989
    purchase of "Del-Tec", which manufactured more extensively customized,
    higher priced units, whose operations were discontinued in the third quarter
    of 1993.
 
(2) After deduction of preferred stock dividends paid or accrued of $166,000 and
    $48,000 for the years ended December 31, 1995 and 1996, respectively, and
    $48,000 for the six months ended June 30, 1996. No shares of the Company's
    preferred stock were outstanding during the six months ended June 30, 1997,
    and no shares currently are outstanding. See Note 11 of Notes to Financial
    Statements.
 
(3) Computed on a fully diluted basis.
 
(4) For a description of the Company's long-term debt, see Notes 5 and 6 of
    Notes to Financial Statements.
 
(5) Determined by dividing the total square footage of floors sold during the
    year by 960 square feet, the floor area of a standard classroom. See
    "Business -- Modular Classrooms."
 
(6) The Company manufactures classrooms to fill existing orders only, and not
    for inventory. Backlog consists of sales orders scheduled for completion
    during the next 12 months.
 
                                       14
<PAGE>   15
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 RESULTS OF OPERATIONS AND FINANCIAL CONDITION
 
GENERAL
 
     Since its inception in 1982, the Company's principal business has been the
design, manufacture, marketing and installation of modular relocatable
classrooms. The Company's primary customers consist of individual school
districts located in California and the State of California. The need for new
classrooms in California school districts is generally governed by the number of
students per class, which is a function of the net migration of families into
and out of school districts and the total number of new students entering the
school system in any given year.
 
     Specific provisions of California legislation govern the amount of the
State's budget which must be directed toward the public school system. A portion
of these funds may be allocated for the addition of new classrooms. In addition,
the State can raise funds to build or add new classrooms through the issuance of
general obligation bonds. One condition currently governing the receipt of State
funding for new classroom additions is that at least 30% of the classroom space
to be added must be relocatable structures, unless the school district can
demonstrate that the use of such structures is not practical in any given
situation. See "Business -- Legislation and Funding."
 
     In the early to mid 1990's, California suffered through a recession that
resulted in statewide budgetary constraints. During this period, the amount of
State funds available for the addition of new classrooms was severely limited.
As a result, the Company experienced a decline in net sales in 1992 and 1993,
and net sales in 1994 and 1995 were essentially the same as those generated in
1993. In response, the Company initiated a cost control program which included
layoffs of approximately 80% of its staff as compared to the June 1991 work
force, and temporarily closed its plant in Lathrop, California. In addition, the
Chief Executive Officer of the Company agreed to a 50% salary reduction and each
of the Company's other top management personnel agreed to a 10% salary
reduction.
 
     Due in large measure to the amelioration of the State budget crises and the
realization that the need for new classrooms in California far exceeded supply,
beginning in the second half of 1996 and continuing into 1997, the State has
increased the amount of funds targeted specifically for the addition of new
classrooms. In November 1996, the State implemented the Class Size Reduction
Program, the goal of which is to reduce public school class sizes in
kindergarten through the third grade. For the 1996-1997 school year the State
spent $822 million under this program, including $200 million specifically for
facilities, which may be relocatable classrooms. Primarily as a result of the
implementation of the Class Size Reduction Program, the Company's net sales
increased to $49.9 million for the year ended December 31, 1996, compared to
$19.4 million in 1995, and have increased to $58.9 million for the first half of
1997, compared to $12.7 million in the first six months of 1996. Although the
State's upcoming budget has not been finalized, based upon information available
to it, the Company believes that total State funding under the Class Size
Reduction Program for the 1997-1998 school year will be as high as $1.5 billion
for both general operations and school facilities. In addition, an $8.2 billion
school construction bond issue has been proposed, as part of a package of
legislation, for inclusion on the June 1998 California ballot, the proceeds of
which, if on the ballot and approved by the voters, would be used to construct
and modernize existing school facilities, acquire land to build new schools, and
construct or add classrooms. See "Business -- Legislation and Funding." In
response to the increased demand for its modular relocatable classrooms, the
Company re-opened the Northern California Lathrop plant in 1997, is expanding
its Southern California production capacity in Perris, and intends to further
expand production capacity at the Lathrop plant in late 1998.
 
                                       15
<PAGE>   16
 
RESULTS OF OPERATIONS
 
     The following table sets forth, for the periods indicated, the percentages
of net sales represented by certain items in the Company's statements of
operations.
 
                            PERCENTAGE OF NET SALES
 
<TABLE>
<CAPTION>
                                                                                    SIX MONTHS
                                               YEARS ENDED DECEMBER 31,           ENDED JUNE 30,
                                             -----------------------------       -----------------
                                             1994        1995        1996        1996        1997
                                             -----       -----       -----       -----       -----
<S>                                          <C>         <C>         <C>         <C>         <C>
Net sales..................................  100.0%      100.0%      100.0%      100.0%      100.0%
Cost of sales..............................   87.3        84.6        85.5        85.5        81.0
                                             ------      ------      ------      ------      ------
Gross profit...............................   12.7        15.4        14.5        14.5        19.0
Selling, general and administrative
  expenses.................................    7.6         8.3         4.7         6.7         3.7
                                             ------      ------      ------      ------      ------
Income from operations.....................    5.1         7.1         9.8         7.8        15.3
Interest expense, net......................   (2.3)       (2.0)       (0.8)       (0.8)       (0.9)
Other income...............................    0.2          --          --         0.2         0.1
                                             ------      ------      ------      ------      ------
Income before income taxes.................    3.0         5.1         9.0         7.2        14.5
Provision for income taxes.................     --         0.1         0.4         0.2         5.7
                                             ------      ------      ------      ------      ------
Net income.................................    3.0%        5.0%        8.6%        7.0%        8.8%
                                             ======      ======      ======      ======      ======
</TABLE>
 
SIX MONTHS ENDED JUNE 30, 1997 COMPARED TO SIX MONTHS ENDED JUNE 30, 1996
 
     Net sales for the six months ended June 30, 1997 were $58.9 million, an
increase of $46.2 million, or approximately 364%, over net sales of $12.7
million for the six months ended June 30, 1996. The increase in net sales is
principally attributable to the economic recovery of the State of California and
the continued implementation of the Class Size Reduction Program for
kindergarten through third grade classes in California's public elementary
schools, which was adopted in 1996.
 
     Gross profit for the six months ended June 30, 1997 was $11.2 million, an
increase of $9.4 million over gross profit of $1.8 million for the same period
in 1996. Gross profit as a percentage of net sales for the six months ended June
30, 1997 was 19.0%, compared to 14.5% for the same period in 1996. The increase
was due to the increased volume, utilization of a previously idle facility, and
the realization of manufacturing efficiencies.
 
     Selling, general and administrative expenses for the six months ended June
30, 1997 totaled $2.2 million, representing an increase of $1.3 million over the
$848,000 in selling, general and administrative expenses incurred for the six
months ended June 30, 1996. The increase was primarily due to an increase in the
number of employees required to handle the greater sales volume. However, as a
percentage of net sales, selling, general and administrative expenses decreased
to 3.7% for the six months ended June 30, 1997, from 6.7% for the same period in
1996, largely as a result of the Company's strategy of controlling selling,
general and administrative expenses in a period of growth.
 
     Due to increased volume and average borrowings outstanding, net interest
expense increased from $107,000 for the six months ended June 30, 1996 to
$549,000 for the six months ended June 30, 1997.
 
     The provision for income taxes was $3.4 million for the six months ended
June 30, 1997, compared to $20,000 for the six months ended June 30, 1996. The
Company's effective tax rate increased to 39.3% for the six months ended June
30, 1997, compared to 2.2% for the six months ended June 30, 1996. The effective
tax rate for the six months ended June 30, 1996 was favorably impacted by the
federal income tax benefit of remaining net operating loss carryforwards that
were generated in prior years.
 
                                       16
<PAGE>   17
 
YEAR ENDED DECEMBER 31, 1996 COMPARED TO YEAR ENDED DECEMBER 31, 1995
 
     Net sales for the year ended December 31, 1996 increased to $49.9 million,
an increase of $30.5 million, or approximately 157%, from $19.4 million in 1995.
The increase in 1996 was due principally to the amelioration of the State of
California budget deficit and the implementation during the year of the Class
Size Reduction Program for kindergarten through third grade classes in
California's public elementary schools.
 
     For the year ended December 31, 1996, gross profit was $7.3 million, an
increase of $4.3 million, or approximately 143%, over 1995 gross profit of $3.0
million. However, as a percentage of net sales, gross profit declined to 14.5%
in 1996, from 15.4% in 1995. The decline of gross profit as a percentage of net
sales was primarily attributable to a change in product mix as the Company
focused its resources on manufacturing more standardized classrooms which could
be sold in greater numbers.
 
     In 1996, selling, general and administrative expenses increased to $2.3
million from $1.6 million, due to increases in the number of employees and an
increase in selling costs. However, because net sales increased substantially
during the year, selling, general and administrative expenses as a percentage of
net sales decreased to 4.7% in 1996 from 8.3% in 1995.
 
     For the year ended December 31, 1996, net interest expense increased by
$35,000, from $387,000 in 1995 to $422,000 in 1996, due to slightly higher
borrowings to finance growing levels of accounts receivables and
work-in-progress inventories attributable to the large 1996 increase in net
sales.
 
     The provision for income taxes was $208,000 for the year ended December 31,
1996, compared to $19,000 for the year ended December 31, 1995. The Company's
effective tax rate increased to 4.6% for the year ended December 31, 1996, from
1.9% for the year ended December 31, 1995, due to differences between financial
and tax accounting treatment of certain items, primarily accrued liabilities.
The effective tax rate in both periods was positively impacted by the
utilization for federal income tax purposes of net operating loss carryforwards
generated in prior years.
 
YEAR ENDED DECEMBER 31, 1995 COMPARED TO YEAR ENDED DECEMBER 31, 1994
 
     Net sales for the year ended December 31, 1995 were $19.4 million, a
decrease of $969,000, or approximately 5%, from 1994 net sales of $20.4 million.
This slight decline in net sales from year to year was indicative of a
stabilized market during the California recession.
 
     Although net sales were slightly lower in 1995 than in 1994, gross profit
increased to $3.0 million in 1995, an increase of $396,000, or approximately
15%, from $2.6 million in 1994. Gross profit as a percentage of sales increased
to 15.4% in 1995 from 12.7% in 1994. These increases were primarily due to
savings associated with the Company's cost cutting measures initiated in 1993.
 
     In 1995 and 1994, selling, general and administrative expenses remained at
approximately $1.6 million. However, selling, general and administrative
expenses as a percentage of net sales increased to 8.3% in 1995, from 7.6% in
1994, as a result of the slight decline in 1995 net sales.
 
     Net interest expense for the year ended December 31, 1995 decreased from
$471,000 in 1994 to $387,000 in 1995, as borrowing decreased during part of the
year due to a decline in sales. In addition, the Company was able to reduce its
borrowing by utilizing the proceeds from the 1994 Financing described below
under "Liquidity and Capital Resources."
 
     The provision for income taxes was $19,000 for the year ended December 31,
1995, compared to $4,000 for the year ended December 31, 1994. The Company's
effective tax rate increased to 1.9% for the year ended December 31, 1995, from
0.7% for the year ended December 31, 1994, due to differences between financial
and tax accounting treatment of certain items, primarily accrued liabilities.
The effective tax rate in both periods was positively impacted by the
utilization for federal income tax purposes of net operating loss carryforwards
generated in prior years.
 
INFLATION
 
     The Company does not believe that inflation had a material effect on its
results of operations during the past two years. However, there can be no
assurance that the Company's business will not be affected by inflation in the
future.
 
                                       17
<PAGE>   18
 
QUARTERLY RESULTS
 
     The Company's quarterly operating results may fluctuate significantly due
to a variety of factors, including changes in the Company's product and customer
mix, the introduction of new products by the Company or its competitors, pricing
pressures, general economic conditions and other factors. In addition, it can be
expected that the Company will continue to incur product development, marketing
and promotional expenses based upon management's expectations as to future
sales. Since many of these expenses are committed in advance, the Company
generally is unable to adjust spending in a timely manner to compensate for any
unexpected shortfall in sales. If operating revenues do not meet the Company's
expectations in any given quarter, quarterly operating results may be adversely
affected. There can be no assurance that the Company will be profitable in any
given quarter.
 
     Historically, the Company's quarterly revenues have been highest in the
second and third quarters of each calendar year because a large number of orders
for modular classrooms placed by school districts require that classrooms be
constructed, delivered and installed in time for the upcoming new school year,
which generally commences in September. Additionally, first and fourth quarter
revenues are typically lower due to a greater number of holidays and days of
inclement weather during such periods. The Company typically has been able to
add employees as needed to respond to the corresponding increases in
manufacturing output required to meet this seasonal demand. In addition, the
Company's operating margins may vary on a quarterly basis depending upon the mix
of revenues between standardized classrooms and higher margin customized
classrooms and the timing of the completion of large, higher margin customized
contracts.
 
     The following table sets forth certain quarterly financial data for each of
the four quarters in 1995 and 1996 and the first two quarters of 1997 which has
been derived from unaudited financial statements that, in the opinion of
management, reflect all adjustments (consisting only of normal recurring
adjustments) necessary for a fair presentation of such quarterly information.
The operating results for any quarter are not necessarily indicative of the
results to be expected for any future quarter. In contrast to the typical
seasonality of the Company's business, net sales in the fourth quarter of 1996
were much higher than in any other quarter of that year, reflecting the
increasing demand for the Company's classrooms experienced in recent periods.
 
<TABLE>
<CAPTION>
                                                                QUARTER ENDED
                         -------------------------------------------------------------------------------------------
                                    FISCAL 1995                          FISCAL 1996                  FISCAL 1997
                         ---------------------------------   -----------------------------------   -----------------
                          MAR.     JUNE    SEPT.     DEC.     MAR.     JUNE     SEPT.     DEC.      MAR.      JUNE
                          31,      30,      30,      31,      31,      30,       30,       31,       30,       30,
                          1995     1995     1995     1995     1996     1996     1996      1996      1997      1997
                         ------   ------   ------   ------   ------   ------   -------   -------   -------   -------
                                                  (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                      <C>      <C>      <C>      <C>      <C>      <C>      <C>       <C>       <C>       <C>
Net sales..............  $3,665   $5,712   $6,758   $3,251   $3,621   $9,083   $14,285   $22,897   $25,813   $33,093
Gross profit...........     516      877      958      634      433    1,409     2,121     3,294     4,376     6,842
Income from
  operations...........     123      412      630      207      117      877     1,498     2,420     3,338     5,698
Interest income
  (expense)............    (100)    (138)    (182)      33      (38)     (70)     (142)     (172)     (219)     (330)
Income before income
  taxes................      21      280      457      226       97      812     1,378     2,190     3,135     5,416
Net income.............      21      280      457      207       97      792     1,329     2,051     1,912     3,283
Net income available
  for Common
  Stock(1).............      21      280      457       41       97      744     1,329     2,051     1,912     3,283
Net income per common
  share(2).............  $ 0.01   $ 0.04   $ 0.07   $ 0.00   $ 0.01   $ 0.09   $  0.14   $  0.23   $  0.20   $  0.35
Weighted average shares
  outstanding(2).......   6,123    6,128    6,550    6,712    7,358    8,750     9,200     9,041     9,350     9,370
</TABLE>
 
- ---------------
 
(1) After deduction of preferred stock dividends paid or accrued of $166,000 and
    $48,000 in the quarters ended December 31, 1995 and June 30 1996,
    respectively. No shares of the Company's preferred stock were outstanding
    during the six months ended June 30, 1997, and no shares currently are
    outstanding. See Note 11 of Notes to Financial Statements.
 
(2) Computed on a fully diluted basis.
 
                                       18
<PAGE>   19
 
LIQUIDITY AND CAPITAL RESOURCES
 
     Since the 1994 Financing described below, the Company has funded its
operations and capital expenditures with cash generated internally by
operations, supplemented by borrowings under various credit facilities. During
the years ended December 31, 1994, 1995 and 1996, and the six months ended June
30, 1997, the Company's operations provided (used) cash in the amounts of
approximately $428,000, $1.2 million, ($4.9 million) and ($4.5 million),
respectively. At June 30, 1997, the Company had approximately $2.7 million in
cash.
 
     In September 1997, the Company amended its Credit Facility to increase the
amount which the Company is entitled to borrow thereunder and extend the term of
the commitment to September 30, 2000. The Company is entitled to borrow, from
time to time, up to $20.0 million, with actual borrowings limited to specified
percentages of eligible accounts receivable, equipment and inventories. On June
30, 1997, the Company was entitled to borrow up to the maximum amount of the
Credit Facility, and approximately $13.3 million was outstanding. Interest on
outstanding balances is payable at a floating rate equal to 0.75% above the
lender's reference rate. Borrowings are secured by substantially all of the
Company's assets.
 
     The Company had working capital of $4.4 million, $14.1 million and $26.6
million at December 31, 1995, December 31, 1996 and June 30, 1997, respectively.
In the first six months of 1997, current assets increased by $24.4 million, with
an increase of $18.3 million in contracts receivable and an increase of $3.7
million in inventories, primarily as a result of the increase in net sales for
the period. Current liabilities increased by $11.8 million, with accrued
liabilities and billings in excess of costs and estimated earnings increasing by
$5.4 million and $5.7 million, respectively, as a result of the higher level of
net sales. In 1996, contracts receivable, costs and estimated earnings in excess
of billings on contracts, and inventories increased by $7.1 million, $7.6
million, and $3.5 million, respectively, as the Company's net sales increased
significantly during the second half of the year following implementation of the
State's Class Size Reduction Program. Accounts payable and accrued liabilities
increased by $5.3 million and $2.3 million, respectively, in 1996, also as a
result of the increase in net sales.
 
     Capital expenditures amounted to $482,000, $2.0 million and $570,000 during
the years ended December 31, 1995 and 1996 and the six months ended June 30,
1997, respectively. In 1995, the majority of these expenditures was concentrated
on maintenance of equipment. Capital expenditures increased significantly in
1996 primarily as a result of the re-opening of the Company's Lathrop,
California manufacturing facility. In September 1997, the Company began
construction of an additional production line at one of its Perris, California
facilities. The Company estimates that 1997 capital expenditures, including the
costs of this additional production line, will total approximately $2.0 million.
The Company expects that capital expenditures in 1998 will be approximately $2.0
million, which includes the costs of adding a new production line at the
Northern California plant in Lathrop in late 1998.
 
     The Company has a $4.0 million Industrial Development Bond issued by the
Industrial Development Authority of the County of San Joaquin, California, the
net proceeds of which were used to partially finance the $6.0 million cost of
construction of the Company's Lathrop, California facility. The loan to the
Company must be repaid over a 26 year period, and bears interest at a variable
rate (initially 6.75% per annum), which is repriced weekly, subject to
conversion to a fixed rate at the option of the Company under certain
conditions. The Company's obligation to make payments of principal and interest
on this loan is secured by an irrevocable letter of credit obtained by the
Company from Union Bank of California N.A. Accordingly, the Company's borrowing
capacity will be reduced during the period the letter of credit is outstanding.
As of June 30, 1997, $1.9 million principal amount of this loan remained
outstanding.
 
     In May 1994, the Company raised net proceeds of approximately $2.7 million
through the sale of 2,850,000 shares of Series A Preferred Stock to several
private investors who are Selling Shareholders in this Offering (the "1994
Financing"). In April 1996, all of the Series A Preferred Stock was converted
into 2,850,000 shares of Common Stock. In December 1996, warrants issued to the
investors in connection with the 1994 Financing were exercised, resulting in
cash proceeds to the Company of approximately $1.6 million and the issuance of
2,204,000 additional shares of Common Stock.
 
                                       19
<PAGE>   20
 
     Management believes that the Company's existing product lines and
manufacturing capacity will enable the Company to generate sufficient cash
through operations, supplemented by the net proceeds to the Company from this
Offering and continued use of its existing line of credit, to finance the
Company's business over the next twelve months. However, additional cash
resources may be required if the Company's rate of growth exceeds currently
anticipated levels. Moreover, it may prove necessary for the Company to
construct or acquire additional manufacturing facilities in order for the
Company to compete effectively in new market areas or states which are beyond a
300 mile radius from one of its production facilities. The construction or
acquisition of new facilities could require significant additional capital.
 
NEW ACCOUNTING PRONOUNCEMENTS
 
     In March 1997, the Financial Accounting Standards Board (FASB) issued
Statement of Financial Accounting Standards No. 128, "Earnings per Share" ("SFAS
128"), effective for fiscal years ending after December 15, 1997. SFAS 128
introduces and requires the presentation of "basic" earnings per share which
represents net earnings divided by the weighted average shares outstanding
excluding all common stock equivalents. Dual presentation of "diluted" earnings
per share, reflecting the dilutive effects of all common stock equivalents, will
also be required. The diluted presentation is similar to the current
presentation of fully diluted earnings per share. Management has not determined
whether the adoption of SFAS 128 will have a material impact on the Company's
combined financial position or results of operations.
 
     In June 1997, the FASB issued Statement of Financial Accounting Standards
No. 130, "Reporting Comprehensive Income" ("SFAS 130"). SFAS 130 establishes
standards for the reporting and display of comprehensive income and its
components (revenues, expenses, gains and losses) in a full set of general-
purpose financial statements. SFAS 130 requires all items that are required to
be recognized under accounting standards as components of comprehensive income
to be reported in a financial statement that is displayed with the same
prominence as other financial statements. SFAS 130 does not require a specific
format for that financial statement but requires that an enterprise display an
amount representing total comprehensive income for the period covered by that
financial statement. SFAS 130 requires an enterprise to (a) classify items of
other comprehensive income by their nature in a financial statement and (b)
display the accumulated balance of other comprehensive income separately from
retained earnings and additional paid-in capital in the equity section of a
statement of financial position. SFAS 130 is effective for fiscal years
beginning after December 15, 1997. Management has not determined whether the
adoption of SFAS 130 will have a material impact on the Company's combined
financial position or results of operations.
 
     In June 1997, the 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. It amends FASB
Statement No. 94, "Consolidation of All Majority-Owned Subsidiaries," to remove
the special disclosure requirements for previously unconsolidated subsidiaries.
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 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. Management has not determined whether the adoption of SFAS 131
will have a material impact on the Company's segment reporting.
 
                                       20
<PAGE>   21
 
                                    BUSINESS
GENERAL
 
     The Company designs, manufactures, markets and installs modular relocatable
classrooms. Based upon 1996 net sales, the Company believes that it is the
largest manufacturer of modular relocatable classrooms in California. The
Company's classrooms are sold primarily to California school districts and to
third parties and the State of California principally for lease to California's
school districts. The Company's products include standardized classrooms, as
well as customized structures for use as libraries, gymnasiums, computer rooms
and bathroom facilities. The Company believes that its modular structures can be
substituted for virtually any part of a school. The Company's products are
engineered and constructed in accordance with structural and seismic safety
specifications adopted by the California Department of State Architects which
regulates all school construction on public land, standards which are more
rigorous than the requirements for other portable units.
 
     As a result of net enrollment increases in California schools and budgetary
constraints experienced by the State of California which limited the
availability of funds for the addition of new classrooms over the last few years
prior to 1996, California's schools are reported to be among the most crowded in
the nation. As the State budget deficit has ameliorated, the legislature has
increased funding for new classrooms in an effort to reduce the average number
of students per class. State funding initiatives include funds from both (i) the
State's operating budget, such as the $200 million allocated for construction or
addition of classrooms out of the total of $822 million spent under the Class
Size Reduction Program for the 1996-1997 school year and as much as $1.5 billion
allocated for the 1997-1998 school year for both general operations and school
facilities, and (ii) the sale of statewide bond issues, such as the $8.2 billion
bond issue for school construction, including the addition of classrooms,
proposed as part of a package of legislation for inclusion on the June 1998
ballot. See "Business -- Legislation and Funding."
 
     These factors have combined to increase the demand for modular relocatable
classrooms, which cost significantly less and take much less time to construct
and install than conventional school facilities, and which permit a school
district to relocate the units as student enrollments shift. In addition, the
Company's products provide added flexibility to school districts in financing
the costs of adding classroom space, since modular relocatable classrooms are
considered personal property which can be financed out of a district's operating
budget in addition to its capital budget. In recognition of these advantages,
California legislation currently requires, with certain exceptions, that at
least 30% of all new classroom space added using state funds must be relocatable
structures. See "Business -- Legislation and Funding."
 
STRATEGY
 
     The Company's objective is to maintain and enhance its position as the
leading provider of modular relocatable classrooms to California's school
districts, and to diversify its business by obtaining new customers for its
classrooms both within and outside California and by further developing its
non-classroom business. The Company has adopted the following strategies to
achieve these goals: (i) further expand production capacity to meet the
increased demand for modular relocatable classrooms in California; (ii) increase
market share in California by developing products designed and engineered to
meet a variety of customer needs that can be manufactured and sold at
competitive prices; (iii) expand the market for its modular relocatable
classrooms to include private schools and day care facilities in California and
public and private schools and day care facilities out of state; (iv) expand its
non-classroom product line; and (v) continue to refine its manufacturing
processes to increase profit margins on modular relocatable classrooms.
 
     Expand Capacity: As a result of increased demand for modular relocatable
classrooms, the Company currently is operating at or near capacity at both its
Southern California and Northern California manufacturing facilities. The
Company operates a total of six production lines in four plants, and is
currently adding a seventh production line to serve the Southern California
market. This line is expected to be fully operational by the end of 1997. The
Company is also planning to add an eighth production line to serve the Northern
California market in late 1998.
 
     Increase Market Share: The Company believes that it has attained its
position as the largest manufacturer of modular relocatable classrooms in
California because of its ability to increase production capacity to accommodate
recent increases in demand, its efficient manufacturing processes which have
enabled the Company to be one of the low-cost providers of modular relocatable
classrooms in California, and the quality
 
                                       21
<PAGE>   22
 
and design features of its classrooms. In addition, the Company's Northern and
Southern California manufacturing facilities enable it to serve efficiently all
of California with a minimum of transportation costs. The Company believes that
its streamlined organizational structure, the vertical integration of its
manufacturing process, and the level of its bonding capacity and access to
capital combine to provide it with several advantages over most of its
competitors, which generally are smaller, privately-owned businesses. The
Company intends to capitalize on these advantages by expanding its marketing
efforts, aggressively pursuing new contract opportunities, and continuing to
offer quality products at competitive prices, in an effort to further increase
its share of the market.
 
     Expand the Market for Modular Classrooms: In addition to the State of
California and California school districts, the Company believes that there are
a significant number of other potential customers for its classrooms both within
and outside of California. Several adjacent states such as Arizona and Nevada
exhibit population growth and increasing levels of school enrollment. Although a
comparable regulatory environment does not exist in either of these states, the
Company believes that Arizona and Nevada will face similar problems of
overcrowded classrooms and limited funding for the financing of new classroom
construction in the next several years. In an effort to increase classroom sales
to private schools in California, and to intensify the Company's classroom
marketing efforts in Arizona and Nevada, the Company recently hired a
salesperson whose primary responsibility will be to market and sell the
Company's classrooms to these new customers.
 
     Diversify Markets and Product Mix: The Company believes that opportunities
exist to significantly increase sales of non-classroom products from 1996
levels. The Company recently has taken steps to take advantage of these
opportunities. In 1996, the Company acquired a manufacturing facility in
Patterson, California, which enhanced the Company's ability to manufacture and
sell modular structures intended for uses other than as classrooms. Since 1995,
the Company has designed, manufactured and sold a limited number of modular
units which shelter valuable electronic equipment used by the cellular telephone
industry. From time to time, the Company also has used excess production
capacity to manufacture a variety of modular, portable buildings for commercial
uses that are not designed and engineered to the California Department of State
Architect standards for classrooms. The Company believes that its manufacturing
expertise and capacity will enable it to significantly increase its presence in
these, and possibly other, non-classroom markets.
 
     Increase Profit Margins: The Company recently has been able to generate
increasing operating income margins. Operating income as a percentage of net
sales for the years ended December 31, 1995 and 1996, and for the six months
ended June 30, 1997, was 7.1%, 9.8% and 15.3%, respectively. These margin
improvements have been the result of increased sales, improved operating
efficiencies, and a disciplined management plan to permit only modest growth in
the overall level of general and administrative expenses as revenue grows.
Additional efficiencies are expected to be realized as the Company's new
production lines are activated and attain normalized utilization rates. The
Company also will continue to endeavor to develop new design and manufacturing
enhancements or alternatives which could be expected to reduce production costs.
 
INDUSTRY OVERVIEW
 
     In recent years, the growth in population in California, both from births
and from immigration, has led to increasing school enrollments. As a result,
classrooms in many California school districts currently are reported to be
among the most crowded in the nation, with an average of 29 students per class
compared to a national average class size of 17. The California Department of
Finance has estimated that student enrollment in grades kindergarten through 12
will increase by approximately 18% over the period from 1995 through 2005.
Additionally, changes in population demographics have left many existing
permanent school facilities in older residential areas with excess capacity due
to declining enrollments, while many new residential areas are faced with a
continuing shortage of available classrooms. Consequently, it has become
necessary to add additional classrooms at many existing facilities, and to build
a number of new schools.
 
     The construction of new schools and the addition of classrooms at existing
schools are tied to the sources and levels of funding available to California
school districts. The availability of funding for new school and classroom
additions, in turn, is determined in large measure by the amount of tax revenue
raised by the State,
 
                                       22
<PAGE>   23
 
the level of annual allocations for education from the State's budget which is
determined by educational policies that are subject to political concerns, and
the willingness of the California electorate to approve state and local bond
issues to raise money for school facilities.
 
     In 1978, California voters approved Proposition 13, which rolled back local
property taxes (a traditional source of funding for school districts) and
limited the ability of local school districts to raise taxes to finance the
construction of school facilities. The passage of Proposition 13, coupled with
growing student populations, has increased the need for local school districts
to find ways to reduce the cost of adding classrooms. The California legislature
has adopted several statutes designed to alleviate some of the problems
associated with the shortage of classrooms and lack of local funding
alternatives. For example, in 1976, California adopted legislation that
currently requires, with certain exceptions, that at least 30% of all new
classroom space added using State funds must be relocatable structures. This
requirement may be satisfied through the purchase or lease of the Company's
classrooms. See "Business -- Legislation and Funding." Additionally, in 1979 the
California legislature adopted legislation that provides for State funding for
the purchase of relocatable classrooms that could be leased to local school
districts.
 
     As the number of students enrolled in California schools continued to
increase throughout the 1990's, the State of California and California school
districts experienced increasing budget shortfalls. The resulting shortage of
funding available at both the State and local level led to declining sales of
modular relocatable classrooms, by the Company and on an industry-wide basis.
However, as the State budget deficit ameliorated, funding for modular
relocatable classrooms began to increase. This growth was accelerated when the
California Class Size Reduction Program was implemented in November 1996, the
goal of which is to reduce class sizes to 20 students in public elementary
schools at the kindergarten through third grade levels. For the 1996-1997 school
year, the State spent $822 million under this program, including $200 million
specifically for facilities which may be relocatable classrooms. The Company
believes that total State funding under the Class Size Reduction Program for the
1997-1998 school year will be as high as $1.5 billion for both general
operations and school facilities. In addition, an $8.2 billion bond issue for
school construction, including the addition of classrooms, has been proposed for
inclusion on the June 1998 ballot. As a result, the Company anticipates that the
near-term market for modular relocatable classrooms in California will be
significantly greater than it was in 1996, when the Company believes that
industry-wide sales of modular classrooms within California were approximately
$175 million. See "Risk Factors -- Legislation and School Funding."
 
     When compared to the construction of a conventionally built classroom,
modular classrooms offer a number of advantages, including, among others:
 
<TABLE>
<S>                            <C>
Lower Cost                 --  The cost of the Company's standard classroom may be as
                               low as $29,000 installed, as compared to $80,000 to
                               $100,000 for conventional construction of a comparable
                               classroom;
 
Shorter Construction Time  --  A modular classroom can be built and ready for
                               occupancy in a shorter period of time than that
                               required for state approval and construction of a
                               conventional facility;
 
Flexibility of Use         --  Modular relocatable classrooms enable a school district
                               to use the units for short or long term needs and to
                               move them if necessary to meet shifts in student
                               populations; and
 
Ease of Financing          --  As personal rather than real property, modular
                               classrooms may be leased on a long or short-term basis
                               from manufacturers and leasing companies. This allows
                               school districts to finance modular classrooms out of
                               both their operating and capital budgets.
</TABLE>
 
MODULAR RELOCATABLE CLASSROOMS
 
     The Company's modular relocatable classrooms are designed, engineered and
constructed in accordance with structural and seismic safety specifications
adopted by the California Department of State Architects, standards which are
more rigorous than the requirements for other portable units. The Department of
State
 
                                       23
<PAGE>   24
 
Architects, which regulates all school construction on public land, has
prescribed extensive regulations regarding the design and construction of school
facilities, setting minimum qualifications for the preparation of plans and
specifications, and reviews all plans for the construction of material
modifications to any school building. Construction authorization is not given
unless the school district's architect certifies that a proposed project
satisfies construction cost and allowable area standards. The Company
subcontracts with structural engineering firms to interface with each school
district's architect or engineer to process project specifications through the
Department of State Architects. The Company believes that the regulated
environment in which the Company's classrooms are manufactured serves as a
significant barrier to market entry by prospective competitors. See
"Business -- Competition."
 
     Conventional school facilities constructed by school districts using funds
from the State Office of Public School Construction typically require two to
three years for approval and funding. By contrast, factory-built school
buildings like the Company's standard classrooms may be pre-approved by the
State for use in school construction. Once plans and specifications for a given
classroom have been pre-approved, school districts can thereafter include in
their application to obtain State funds for new facilities a notification that
they intend to use pre-approved, standardized factory-built classrooms. This
procedure reduces the time required in the State's approval process to as little
as 90 days, thereby providing an additional incentive to use factory-built
relocatable classrooms. In all cases, continuous on-site inspection by a
licensed architect or structural engineer is required during actual manufacture
of the classrooms, with the school district obligated to reimburse the
Department for the costs of such inspection.
 
     The Company's classrooms are manufactured and installed in accordance with
the applicable Department of State Architects building code, which supersedes
all local building codes for purposes of school construction. The classrooms
must comply with accessibility requirements for the handicapped, seismic and
fire code requirements.
 
     The Company manufactures and installs standard, largely pre-fabricated
modular relocatable classrooms, as well as customized classrooms which are
modular in design but assembled on-site using components manufactured by the
Company together with components purchased from third party suppliers. The
Company's classrooms vary in size from two modular units containing a total of
960 square feet to 20 units that can be joined together to produce a facility
comprising 9,600 square feet. Larger configurations are also possible. Typical
prices for the Company's standard classrooms range from $29,000 to $34,000,
while prices for a custom classroom generally exceed $50,000, depending upon the
extent of customization required.
 
     The two basic structural designs for standard and custom modular classrooms
are a rigid frame structure and a shear wall structure. The rigid frame
structure uses a steel floor and roof system, supported at each corner with
square steel tubing. These buildings have curtain walls to enclose the interior
from the outside, and have the advantage of unlimited width and length. Rigid
frame structures may be used for multipurpose rooms and physical education
buildings as well as standard classrooms. Shear wall classrooms have a maximum
width of 48 feet (four 12 foot modules) and a maximum length of 60 feet. These
classrooms use the exterior and interior walls to produce the required
structural strength and can be built at lower costs than rigid frame structures.
The Company's most popular factory-built classroom is a rigid frame design, with
two modules connected side by side to complete a 24 by 40 foot classroom.
 
     Custom built classrooms, libraries and gymnasiums contain design variations
and dimensions such as ceiling height, pitch, overall size and interior
configuration. These units typically are not assembled at the factory but
instead are shipped in pieces, including floors, walls and roofs, and assembled
on-site. Contracts for custom built units may include the design, engineering
and layout for an entire school or an addition to a school, and involve site
preparation, grading, concrete and asphalt work and landscaping. Customized
classrooms are generally more expensive and take longer to complete than the
Company's standard classrooms.
 
     The interior and exterior of all of the Company's modular classrooms can be
customized by employing different materials, design features and floor plans.
Most classrooms are open, but the interior of the buildings can be divided into
individual rooms by permanent or relocatable partitions. The floor covering is
usually carpet but may be linoleum or wood depending upon the intended use of
the classroom. Interior wall material
 
                                       24
<PAGE>   25
 
is usually vinyl covered firtex over gypsum board, while other finishes such as
porcelain enamel or painted hardboard may be used in such places as restrooms
and laboratories. Electrical wiring, air conditioning, windows, doors, fire
sprinklers and plumbing are installed during the manufacturing process. The
exterior of the units is typically plywood siding, painted to the customer's
specifications, but other common siding material may also be applied.
 
CLASSROOM CUSTOMERS
 
     The Company markets and sells its modular classrooms primarily to
California school districts. The Company also sells its classrooms to the State
of California and leasing companies, both of which lease the classrooms
principally to California school districts. Sales of classrooms accounted for
90.5%, 94.2% and 97.2% of the Company's total net sales for the years ended
December 31, 1995 and 1996 and the six months ended June 30, 1997. The Company's
customers typically pay cash from general operating funds or the proceeds of
local bond issues, or lease classrooms through banks, leasing companies and
other private funding sources. See "Legislation and Funding."
 
     Sales of classrooms to individual California school districts accounted for
approximately 80.7%, 74.5% and 82.0%, respectively, of the Company's net sales
during the years ended December 31, 1995 and 1996 and the six months ended June
30, 1997, with sales of classrooms to third party lessors to California school
districts during these periods accounting for approximately 3.1%, 7.2% and
11.6%, respectively, of the Company's net sales. The mix of school districts to
which the Company sells its products varies somewhat from year to year. Sales of
classrooms directly to the State of California during the six months ended June
30, 1997 represented approximately 3.6% of the Company's net sales for the
period, compared to approximately 12.5% of the Company's 1996 net sales and
approximately 6.7% of the Company's 1995 net sales. Sales of classrooms to
private schools, day care providers and out-of-state customers accounted for
less than one percent of the Company's net sales during the years ended December
31, 1995 and 1996 and the six months ended June 30, 1997. One of the lessors to
which the Company sells classrooms for lease to California school districts is
affiliated with the Company through common ownership by two of the Company's
directors. During the years ended December 31, 1995 and 1996 and the six months
ended June 30, 1997, sales of classrooms to this affiliated leasing company
comprised approximately 3.1%, 2.9% and 1.2%, respectively, of the Company's net
sales. See "Management -- Certain Transactions."
 
OTHER PRODUCTS
 
     In addition to modular relocatable classrooms that are designed and
manufactured in accordance with the California Department of State Architects
standards, the Company also manufactures modular, portable buildings which can
be used as office facilities and construction trailers and for other commercial
purposes. Currently, most of these non-classroom products are manufactured at
the Patterson, California plant which the Company acquired in 1996. During the
years ended December 31, 1995 and 1996 and the six months ended June 30, 1997,
sales of such modular, portable buildings to commercial customers accounted, in
the aggregate, for approximately 9.5%, 5.8% and 2.8%, respectively, of the
Company's net sales. The Company also manufactures a small number of modular
structures that house and shelter electronic equipment used in the wireless
telecommunications industry. During the years ended December 31, 1995 and 1996
and the six months ended June 30, 1997, sales of modular telecommunications
equipment shelters, which are included above in sales to commercial customers,
accounted for less than one percent of the Company's net sales for each period.
 
SALES AND MARKETING
 
     The Company's classroom sales force is currently divided into three
marketing regions: Northern, Central and Southern California. The Company
currently employs three classroom salespersons, each of whom is compensated on a
commission basis. These salespersons maintain contact with the individual school
districts in their respective marketing regions on a quarterly basis. They are
also in contact with architects and building inspectors employed by the school
districts, as well as school officials who may be in a position to influence
purchasing decisions.
 
                                       25
<PAGE>   26
 
     Most of the Company's contracts are awarded on an open bid basis. The
marketing process for many of the Company's contracts begins prior to the time
the bid process begins. After the Company selects bids or contracts that it
desires to pursue, the Company's marketing and engineering personnel interface
directly with various school boards, superintendents or architects during the
process of formulating bid or contract specifications. The Company prepares its
bids or proposals using various criteria, including current material prices,
historical overhead costs and a targeted profit margin. Substantially all of the
Company's contracts are turnkey, including engineering and design,
manufacturing, transportation, installation and necessary site work. Open bid
contracts are normally awarded to the lowest responsible bidder.
 
     A fourth salesperson is charged with increasing the Company's sales of
buildings to the commercial and telecommunications markets. In addition,
effective as of October 1997, the Company has hired a salesperson whose focus
will be the sale of classrooms in Nevada and Arizona, and to private schools and
day care operators in California.
 
MANUFACTURING AND ON-SITE INSTALLATION
 
     The Company uses an assembly-line approach in the manufacture of its
standardized classrooms. The process begins with the fabrication of the steel
floor joists. The floor joists are welded to steel frames to form the floor
sub-assembly, which is covered by plywood flooring. Metal roof trusses and
structural supports are fabricated separately and added as the unit progresses
down the assembly-line. Installation of walls, insulation, suspended grid
ceilings, electrical wiring, air conditioning, windows, doors, fire sprinklers,
plumbing and chalk boards follow, with painting and finishing crews completing
the process. Once construction of a standard classroom commences, the building
can be completed in as little as three days. The construction of custom units
on-site, from pre-manufactured components, is similar to factory-built units in
its progressively-staged assembly process but may involve more extensive
structural connections and finish work depending upon the size and type of
building, and typically takes 30 to 60 days to complete.
 
     The Company is vertically-integrated in the manufacture of its standardized
modular classrooms, in that the Company fabricates substantially all of its own
metal components at its facility in Perris, California, including structural
floor and roof joists, exterior roof panels, gutters, down spouts, vents, ramps,
stairs and railings. The Company believes that the ability to fabricate its own
metal components helps it reduce the costs of its products and to control their
quality and delivery schedules. The Company maintains a quality control system
throughout the manufacturing process, under the supervision of its own quality
control personnel and inspectors engaged by its customers. In addition, the
Company tracks the status of all classrooms from sale through installation.
 
     Completed standard classroom units, or components used in customized units,
are loaded onto specially designed flat-bed trailers for towing by trucks to the
school building site. Upon arrival at the site, the units are structurally
connected, or components are assembled, and the classroom is installed on its
foundation. Connection with utilities is completed in the same manner as in
conventional on-site construction. Installation of the modular classrooms may be
on a separate foundation, or several units may be incorporated on a common
foundation under a unified roof, so that upon installation they appear to be an
integral part of an existing school facility or function as a larger building,
such as a gymnasium or cafeteria.
 
     The Company oversees installation of its modular classrooms on-site, using
its own employees for job supervision as a general contractor and, whenever
possible, for utility hook-ups and other tasks. In many custom projects, the
Company performs or supervises subcontracted electrical, plumbing, grading,
paving and foundation work, landscaping and other site preparation work and
services. Sub-contractors are typically used for larger utility, grading,
concrete and landscaping jobs. The Company has a general contractor's license in
the State of California.
 
     In addition to approvals by the Department of State Architects, licensed
inspectors representing various school districts are on-site at each
manufacturing facility of the Company to continuously inspect the construction
of classrooms for structural integrity. On-site inspections after installation
are also made by local fire departments for purposes of determining adequate
accessibility.
 
     The Company currently has four manufacturing facilities. Two are located in
Southern California, in Perris, California which is approximately 60 miles east
of Los Angeles. The Company has another two
 
                                       26
<PAGE>   27
 
facilities near Lathrop, California. Lathrop is located approximately 75 miles
east of San Francisco. With the re-opening of the Lathrop plant in early 1997,
the Company currently has a total of six production lines in operation, with a
seventh scheduled to commence production in Perris by the end of 1997. An eighth
production line is scheduled to be added at the Lathrop plant in late 1998.
 
     The standard contractual warranty for the Company's modular relocatable
classrooms is one year, although it may be varied by contract specifications.
Purchased equipment installed by the Company, such as air conditioning units,
carry the manufacturers' standard warranty. Warranty costs have not been
material in the past.
 
     The Company believes that there are multiple sources of supplies available
for all raw materials and equipment used in manufacturing its classrooms, most
of which are standard construction items such as steel, plywood and wallboard.
 
BACKLOG
 
     The Company manufactures classrooms to fill existing orders only, and not
for inventory. As of December 31, 1996, the backlog of sales orders was
approximately $58.0 million, up from approximately $7.0 million at December 31,
1994 and $4.1 million at December 31, 1995. Backlog at June 30, 1997 was $80.4
million, compared to backlog of $20.4 million at June 30, 1996. Only orders
which are scheduled for completion during the following 12-month period are
included in the Company's backlog. The rate of booking new contracts can vary
from month to month, and customer changes in delivery schedules can occur. For
these reasons, among others, the Company's backlog as of any particular date may
not be representative of actual sales for any succeeding period.
 
COMPETITION
 
     The Company believes that, based upon 1996 net sales, it is the largest
modular relocatable classroom manufacturer in California. However, the modular
relocatable classroom industry is highly competitive, with the market divided
among a number of privately-owned companies whose share of the market is smaller
than that of the Company. The Company believes that the nature of the bidding
process, the level of performance bonding required, and the industry's regulated
environment serve as barriers to market entry, and that the expertise of its
management gives it an advantage over competitors. Nevertheless, the Company
believes that additional competitors may enter the market in the future, some of
whom may have significantly greater capital and other resources than are
available to the Company, and that competition may therefore increase.
 
     The Company also believes that its expertise in site preparation and
on-site installation gives it a competitive advantage over many manufacturers of
higher-priced, customized modular units, while its vertically integrated,
assembly-line approach to manufacturing enables the Company to be one of the low
cost producers of standardized, modular relocatable classrooms in California.
Unlike many of its competitors, the Company manufactures most of its own metal
components which allows the Company to maintain quality control over these
components and to produce them at a lower average cost than that at which they
could be obtained from outside sources. The Company also believes that the
quality and appearance of its buildings, and its reputation for reliability in
completion of its contracts, enable it to maintain a favorable position among
its competition.
 
     The Company categorizes its current competition based upon the geographic
market served (Northern California versus Southern California), as well as upon
the relative degree of customization of products sold. Beyond a radius of
approximately 300 miles, the Company believes that transportation costs
typically will either significantly increase the prices at which it bids for
given projects, or will substantially erode the Company's gross profit margins.
 
     The primary competitors of the Company for standardized classrooms are
believed to be Aurora Modular Industries in Southern California and American
Modular Systems in Northern California. Profiles Structures, Inc. in Southern
California and Design Mobile Systems in Northern California are the Company's
primary
 
                                       27
<PAGE>   28
 
competitors in the market for higher-priced, customized classrooms. Each of
these four competitors is a privately-owned company.
 
PERFORMANCE BONDS
 
     A substantial portion of the Company's sales require that the Company
provide bonds to ensure that the contracts will be performed and completed in
accordance with contract terms and conditions, and to assure that subcontractors
and materialmen will be paid. In determining whether to issue a performance bond
on behalf of the Company, bonding companies consider a variety of factors
concerning the specific project to be bonded, as well as the Company's levels of
working capital, shareholders' equity and outstanding indebtedness. From time to
time the Company has had, and in the future may again encounter, difficulty in
obtaining bonding for a given project. Although it has had no difficulty in
obtaining the necessary bonding in the last twelve months, the Company believes
that its difficulty in obtaining bonding for certain large projects from time to
time in the past has been attributable to the Company's levels of working
capital, shareholders' equity and indebtedness, and not to concerns about the
Company's ability to perform the work required under the contract. To assist the
Company in obtaining performance bonds in certain instances, the Company's
executive officers have been required to indemnify the bonding companies against
all losses they might suffer as a result of providing performance bonds for the
Company. The proceeds to the Company from this Offering are expected to enhance
the Company's ability to obtain performance bonds, furnish security, and meet
other financial requirements associated with bidding for larger contracts and
performing work simultaneously under a greater number of contracts.
 
REGULATION OF CLASSROOM CONSTRUCTION
 
     In 1933, the California Legislature adopted the Field Act, which generally
provides that school facilities must be constructed in accordance with more
rigorous structural and seismic safety specifications than are applicable to
general commercial buildings. Under the Field Act, the Department of General
Services, through the Department of State Architects, has prescribed extensive
regulations regarding the design and construction of school facilities, and
reviews all plans for the construction of material modifications to any school
building. Construction authorization is not given unless the school district's
architect certifies that a proposed project satisfies construction cost and
allowable area standards. In addition, the Field Act provides for the submittal
of complete plans, cost estimates, and filing fees by the school district to the
Department of General Services, for the adoption of regulations setting minimum
qualifications for the preparation of plans and specifications, and the
supervision of school construction by a licensed architect or structural
engineer.
 
     Additionally, California legislation provides that certain factory-built
school buildings may be pre-approved by the State for use in school
construction. Once plans and specifications for a given classroom have been
pre-approved by the Department of General Services, school districts can
thereafter include in their application to obtain State funds for new facilities
a notification that they intend to use pre-approved, standardized factory-built
classrooms. This procedure reduces the time required in the State's approval
process thereby providing additional incentive to use factory-built relocatable
classrooms. The Department of General Services provides for the continuous
on-site inspection during actual manufacturing of the classrooms, with the
school districts obligated to reimburse the Department for the costs of such
inspection.
 
LEGISLATION AND FUNDING
 
     The demand for modular relocatable classrooms in California is affected by
various statutes. These statutes, among other things, prescribe the methods by
which the Company's customers, primarily individual school districts, obtain
funding for the construction of new school facilities, and the manner in which
available funding is to be spent by the school districts.
 
     In 1978, Proposition 13 was approved, which rolled back property taxes and
limited the ability of local school districts to rely upon revenue from such
taxes to finance the construction of school facilities. As a result, financing
for new school construction and rehabilitation of existing schools by California
school districts is currently provided, at the state level, by funds derived
from general revenue sources or statewide bond
 
                                       28
<PAGE>   29
 
issues, and, at the local level, by local bond issues and fees imposed on the
developers of residential, commercial and industrial real property ("Developer
Fees"). Historically, the primary source of financing for the purchase or lease
of relocatable classrooms has been state funding.
 
  STATE FUNDING
 
     Until the adoption of the Class Size Reduction Program in 1996, the most
important source of funding at the State level for new school facilities was
through the issuance and sale of statewide general obligation bonds which are
repaid out of the State's General Funds. Proposals to issue such bonds are
placed on statewide ballots from time-to-time in connection with general or
special elections, and require approval by a majority of the votes cast in
connection with such proposals. As in the case of the Class Size Reduction
Program, the State also may annually allocate funds from the State's budget for
the support of school districts and community college districts.
 
     Authority for Bond Financing. Under the School Building Lease -- Purchase
Law of 1976, the State Allocation Board is empowered to purchase or lease school
facilities using funds from the periodic issuance of general obligation bonds of
the State of California. These purchased or leased school facilities may be made
available by the State Allocation Board to school districts. Certain matching
funds, usually derived from Developer Fees, are required to be supplied by the
school districts seeking state funded facilities. If the school districts
acquire relocatable structures using Developer Fees, the amount of the required
matching funds is reduced by the cost of such facilities. This reduction in
matching funds is intended to provide an incentive for school districts to lease
relocatable classrooms. As a condition of funding any project under this
program, at least 30% of new classroom space to be added must be comprised of
relocatable structures, unless relocatable structures are not available or
special conditions of terrain, climate or unavailability of space make the use
of relocatable structures impractical. In addition, State funds under this
program are not available to school districts which are determined to have an
adequate amount of square footage available for their student population.
 
     Recently, a package of bills was introduced that would, among other things,
(i) revise the School Building Lease-Purchase Law of 1976 including elimination
of the requirement that at least 30% of all classroom space to be added using
State funds be relocatable classrooms, (ii) place an $8.2 billion bond issue for
school construction on the June 1998 ballot, and (iii) include a proposed
amendment to the California Constitution on the June 1998 ballot. The proposed
Constitutional amendment would modify Proposition 13 by reducing the percentage
vote required for approval of tax increases to support local bond issuances from
two-thirds to a simple majority. However, both houses of the California
Legislature passed different versions of this package of bills, which were
returned to a conference committee. Each bill must still be approved by both
houses of the Legislature as revised by the conference committee. In addition,
none of these bills would become operative as currently proposed unless the $8.2
billion bond issue is approved by a majority of the California voters and the
proposed amendment to the California Constitution is approved by two-thirds of
the California voters.
 
     In response to the adoption of Proposition 13, the State of California
adopted the California Emergency Classroom Law of 1979, pursuant to which the
State Allocation Board may spend up to $35 million per year from available funds
to purchase relocatable classrooms to be leased to school districts. Relocatable
classrooms are not available to school districts under this program if the
school district has available local bond proceeds that could be used to purchase
classroom facilities, unless the district has approved projects pending under
the School Building Lease-Purchase Law of 1976. The State has, in the past,
funded this program primarily from the proceeds of statewide bond issues
approved by voters.
 
     Budget Allocations. Proposition 98, which was approved in 1988, requires
the State to allocate annually from the State's budget, for the support of
school districts and community college districts, a minimum amount equal to the
same percentage of funds as was appropriated for the support of those
institutions in fiscal year 1986-87. While this requirement may be suspended for
a given year by emergency legislation, it has the effect of limiting the ability
of the California legislature to reduce the level of school funding from that in
existence in 1986-87. The State raises the necessary funds through proceeds from
the sale of statewide bond
 
                                       29
<PAGE>   30
 
issues, income tax revenues and other revenues. A recent reduction in
California's corporate tax rates, and a proposed reduction in personal income
tax rates, may affect future levels of the State's income tax revenues.
 
     In November 1996, California implemented the Class Size Reduction Program
in response to overcrowding in classrooms in the state and its assumed negative
impact on learning. An additional impetus for the program was a study conducted
by Tennessee State University which indicated that students in small classrooms
outperformed their peers from larger classes at least through the eighth grade
on standardized tests in math and reading. The goal of the California Class Size
Reduction Program is to reduce public elementary school class sizes in
kindergarten through the third grade. Under this program, schools that reduce
class size to 20 students in those grades will receive additional funds. For the
1996-1997 school year, a school district was entitled to receive $25,000 for
each new classroom added which reduced the average class size for a specified
grade level to 20 students or less. Among other ways new classrooms can quickly
and inexpensively be added, school districts may reconfigure existing space to
convert it to classrooms from other uses, or purchase or lease a modular
relocatable classroom.
 
  LOCAL FUNDING
 
     Local school districts in California have the ability to issue local
general obligation bonds for the acquisition and improvement of real property
for school construction. These bond issues require the approval of two-thirds of
the voters in the district and are repaid using the proceeds of increases in
local property taxes. A local school district may also levy Developer Fees on
new development projects in the district, subject to a maximum rate set by state
law. The Developer Fees can only be levied if the project can be shown to
contribute to the need for additional school facilities and the fee levied is
reasonably related to such need. In addition, California law provides for the
issuance of bonds by Community Facilities Districts which can be formed by a
variety of local government agencies, including school districts. These
districts, known as "Mello-Roos" districts, can have flexible boundaries and the
tax imposed to repay the bonds can be based on property use, acreage, population
density or other factors.
 
OTHER LEGISLATION
 
     California legislation adopted in 1989 provides that school districts which
currently lease any building which does not meet the prescribed structural
standards must have replaced nonconforming buildings with conforming ones by
September 1, 1990. However, any district has the right to request a one-time
waiver for a maximum of three years upon presentation of satisfactory evidence
to the State Allocation Board that the district is proceeding in a timely
fashion with a program that will eliminate the need for the nonconforming
facilities within that time period. The State has authorized districts to renew
these waivers through 2000 and may grant further waivers. The Company
understands that a number of school districts have requested and been granted
such waivers. Based upon information received by the State Allocation Board from
school districts and provided to the Company, it is believed that there are more
than 4,500 trailers currently being used as classrooms by school districts
throughout California that eventually must be replaced with conforming
facilities by these school districts.
 
     California has taken steps to encourage local school districts to adopt
year-round school programs to help increase the use of existing school
facilities and reduce the need for additional school facilities. School
districts requesting state funding under the School Building Lease-Purchase Law
of 1976 or the Emergency Classroom Law of 1979 discussed above must submit a
study examining the feasibility of implementing in the district a year-round
educational program that is designed to increase pupil capacity in the district
or in overcrowded high school attendance areas. The feasibility study
requirement is waived, however, if the district demonstrates that emergency or
urgent conditions exist in the district that necessitate the immediate need for
relocatable buildings. The demand for new school facilities, including
relocatable classrooms, would be adversely affected in the event that a
significant number of California school districts implemented year-round school
programs. In addition, a significant increase in the level of voluntary or
mandatory busing of students from overcrowded schools to schools with excess
capacity could adversely affect demand for new school facilities.
 
                                       30
<PAGE>   31
 
LITIGATION
 
     The Company from time to time is involved in various lawsuits related to
its ongoing business operations, primarily collection actions or vendor
disputes. In the opinion of management, no pending lawsuit will result in any
material adverse effect upon the Company or its financial condition.
 
ENVIRONMENTAL MATTERS
 
     The Company is subject to a variety of federal, state and local
governmental regulations related to the storage, use and disposal of any
hazardous materials used by the Company in connection with the manufacture of
its products. Both the governmental regulations and the costs associated with
complying with such regulations are subject to change in the future.
 
EMPLOYEES
 
   
     At June 30, 1997, the Company had 877 employees, including 834 in
manufacturing, 4 in sales, 20 in operations and 19 in general management and
administration. The Company's employees are not represented by a labor union,
and it has experienced no work stoppages. The Company believes that its employee
relations are good.
    
 
PROPERTIES
 
     The Company's principal executive and administrative facilities are located
in approximately 11,400 square feet of modular buildings at its primary
manufacturing facility located in Perris, California. This manufacturing
facility occupies twenty-five acres, with approximately 200,000 square feet of
covered production space under roof, pursuant to a lease expiring in 2014. A
second facility in Perris occupies approximately thirty acres, with
approximately 120,000 square feet of covered production space under roof,
pursuant to a lease expiring in 2014. This second facility also includes
approximately 80,000 square feet under roof used as a metal working facility.
The Company's third plant consists of a 400,000 square foot manufacturing
facility on a 30-acre site in Lathrop, California that is leased through 2019.
The fourth plant, which was leased for up to five years in October 1996,
consists of approximately 50,000 square feet of manufacturing areas on a 4 acre
site in Patterson, California. The Company believes that its existing facilities
are well-maintained and in good operating condition, and, with the additional
production lines currently being added or planned for addition in 1998, meet the
requirements for its immediately foreseeable business needs. Each of the
Company's current facilities other than the Patterson plant is leased from an
affiliate. See "Management -- Certain Transactions."
 
                                       31
<PAGE>   32
 
                                   MANAGEMENT
 
DIRECTORS, EXECUTIVE OFFICERS AND KEY EMPLOYEES
 
     The directors, executive officers and key employees of the Company are as
follows:
 
<TABLE>
<CAPTION>
                 NAME               AGE                          POSITIONS
    ------------------------------  ----    ----------------------------------------------------
    <S>                             <C>     <C>
    Gerald B. Bashaw..............   62     Chairman of the Board of Directors
    Evan M. Gruber................   44     Chief Executive Officer and Director
    Michael G. Rhodes.............   36     Chief Operating Officer and Chief Financial Officer
    Robert W. Campbell............   41     Director
    James D. Goldenetz............   47     Director
    Charles C. McGettigan.........   52     Director
    James M. Phillips, Jr.........   49     Director
    Myron A. Wick III.............   53     Director
</TABLE>
 
     Mr. Bashaw founded the Company in 1982. Previously, he served as the Vice
President of Operations and then President of Aurora Modular Industries, a
manufacturer of modular classrooms, mobile homes, office trailers, and modular
houses and buildings, which he co-founded in 1965.
 
     Mr. Gruber joined the Company in January 1989 as its Chief Financial
Officer, and was elected to the Company's Board of Directors and as its Chief
Executive Officer in January 1990. Prior to joining the Company, Mr. Gruber, who
is a certified public accountant, worked at his own public accounting firm in
Costa Mesa, California, which he founded in 1978.
 
     Mr. Rhodes joined the Company in 1988 and was the Company's controller
through 1992. In 1993 he was elected Chief Financial Officer, and in 1996 was
elected Chief Operating Officer. Prior to his joining the Company, Mr. Rhodes
worked for a public accounting firm.
 
     Mr. Campbell, who was elected to the Company's Board of Directors in 1992,
is a Managing Director of Corporate Finance at L.H. Friend, Weinress, Frankson &
Presson, Inc. From 1993 to 1995, Mr. Campbell was Senior Vice
President -- Investment Banking at Baraban Securities, Incorporated. From 1982
to 1993, Mr. Campbell was employed by The Seidler Companies, Inc. as Senior Vice
President -- Corporate Finance.
 
     Mr. Goldenetz, who currently serves as the President of Class Leasing,
Inc., joined the Company as a director in January 1988, after previously serving
as the President of Aurora Modular Industries since January 1982. He began work
in the modular classroom industry, in production, at Aurora Modular Industries
in 1969.
 
     Mr. McGettigan was elected to the Board of Directors in June 1994 in
connection with the 1994 Financing. Mr. McGettigan is a co-founder and managing
director of the investment banking firm of McGettigan, Wick & Co., Inc. and a
co-founder and general partner of Proactive Investment Managers, L.P., the
general partner of Proactive Partners, L.P., a merchant banking fund formed in
1991. Prior to founding McGettigan, Wick & Co., Inc., he was a Principal,
Corporate Finance of Hambrecht & Quist and a senior vice president of Dillon,
Read & Co. Mr. McGettigan is a director of Digital Dictation, Inc.; I-Flow
Corporation; Onsite Energy; Phoenix Network, Inc.; PMR Corporation; Sonex
Research, Inc.; Vie de France Corporation; Tanknology-NDE and Wray-Tech
Instruments Inc.
 
     Mr. Phillips became a director of the Company upon the consummation of the
Company's initial public offering in July 1990. Mr. Phillips has been an
attorney for the last 20 years, practicing primarily in the areas of corporate
and securities law. After practicing law for 13 years with a number of law
firms, including Gibson, Dunn & Crutcher, Paul, Hastings, Janfosky & Walker, and
Brobeck, Phleger & Harrison, Mr. Phillips established his own firm in 1990.
 
                                       32
<PAGE>   33
 
     Mr. Wick joined the Company's Board of Directors in June 1994 in connection
with the 1994 Financing. Mr. Wick is currently a managing director and founder
of McGettigan, Wick & Co., Inc., an investment banking firm formed in 1988, and
a general partner of Proactive Investment Managers, L.P., the general partner of
Proactive Partners, L.P., a merchant banking fund formed in 1991. Mr. Wick is a
director of Children's Discovery Centers; Digital Dictation Inc.; Electrostatic
Devices; Tanknology-NDE; Sonex Research, Inc. and Wray-Tech Instruments Inc.
 
EXECUTIVE COMPENSATION
 
     The following table summarizes the annual and long term compensation paid
by the Company during the fiscal years ended December 31, 1994, 1995 and 1996 to
those persons who were, as of December 31, 1996, (i) the Chief Executive Officer
of the Company, and (ii) the other compensated executive officers of the
Company, if any, whose total annual salary and bonus exceeded $100,000 during
the year ended December 31, 1996.
                           SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                                LONG-TERM COMPENSATION
                                                                            ------------------------------
                                                                                   AWARDS
                                                                            --------------------
                                                  ANNUAL COMPENSATION       RESTRICTED             PAYOUTS
                                              ---------------------------     STOCK                -------      ALL OTHER
                                               SALARY     BONUS     OTHER     AWARDS     OPTIONS    LTIP     COMPENSATION(1)
     NAME AND PRINCIPAL POSITION       YEAR      $          $         $         $           #      PAYOUTS          $
- -------------------------------------  ----   --------   --------   -----   ----------   -------   -------   ---------------
<S>                                    <C>    <C>        <C>        <C>     <C>          <C>       <C>       <C>
Evan M. Gruber.......................  1996   $158,000   $137,000     --        --       110,000      --         $ 4,615
  Chief Executive Officer              1995    150,000     15,000     --        --       25,000       --           3,654
  and Director                         1994    125,000         --     --        --       350,000      --           4,030
Michael G. Rhodes....................  1996   $ 90,000   $ 24,000     --        --       105,000      --         $ 4,827
  Chief Operating Officer,             1995     87,000     12,100     --        --       20,000       --             129
  Chief Financial Officer              1994     85,000         --     --        --       10,000       --           4,124
</TABLE>
 
- ---------------
 
(1) The figures shown in the last column designated "All Other Compensation"
    represent the executive officer's share of the Company's contribution to the
    401(k) Plan. See "Management -- 401(k) Plan."
 
     Each non-employee director is paid an annual retainer of $4,000, plus
$1,000 for each board and board committee meeting attended, and is granted an
option to purchase 5,000 shares of the Company's Common Stock at the end of each
year of service on the Board of Directors. See "Management -- Stock Options."
The Company has and will continue to pay the expenses of its non-employee
directors in attending Board meetings. No additional compensation is paid to any
employee director for serving on the Company's Board of Directors.
 
EMPLOYMENT AGREEMENT
 
     In connection with the 1994 Financing, the Company entered into a
three-year employment agreement with Mr. Gruber, which in September 1996 the
Compensation Committee voted unanimously to extend through 1999. The agreement
includes, among other provisions, a base annual salary of not less than $150,000
per year, which was increased to $200,000 in October 1996, with periodic
increases equal to the rate of increase in the Consumer Price Index, and the
grant of an option to purchase 200,000 shares of the Company's Common Stock at
$1.50 per share. Additionally, under the agreement, Mr. Gruber is entitled to
receive a bonus equal to two and one-half percent of the amount, if any, by
which the net income before taxes of the Company for the year in question
exceeds $1 million.
 
401(K) PLAN
 
     Under the Company's 401(k) Plan, officers and other employees of the
Company may elect to defer up to 12% of their compensation, subject to
limitations under the Internal Revenue Code. The Company makes annual
contributions on a 50% matching basis. Amounts deferred are deposited by the
Company in a trust account for distribution to employees upon retirement,
attainment of age 59 1/2, permanent disability, death, termination of employment
or the occurrence of conditions constituting extraordinary hardship. For the
year ended December 31, 1996, the Company contributed $4,615 and $4,827 as
matching contributions for the accounts of Mr. Gruber and Mr. Rhodes,
respectively.
 
                                       33
<PAGE>   34
 
STOCK OPTIONS
 
     In June 1989, the Company's Board of Directors adopted, and the Company's
shareholders approved, the Modtech, Inc. 1989 Stock Option Plan (the "1989
Plan"). The 1989 Plan provides for the grant of both incentive and nonstatutory
options to purchase up to an aggregate of 400,000 shares of the Company's Common
Stock. Incentive stock options can be granted only to employees, including
officers, of the Company, while nonstatutory stock options can be granted to
employees, non-employee officers and Directors, consultants, vendors, customers
and others expected to provide significant services to the Company. Participants
in the 1989 Plan are selected by the Board of Directors of the Company, or by a
committee of Directors selected by the Board as a whole. The Board or the
committee is empowered to determine the terms and conditions of each option
granted under the 1989 Plan, subject to the limitations that the exercise price
of incentive stock options cannot be less than the fair market value of the
Common Stock on the date of grant (110% if granted to an employee who owns 10%
or more of the Common Stock), no option can have a term in excess of ten years
(five years if granted to an employee owning 10% or more of the Common Stock)
and no incentive stock option can be granted to anyone other than a full-time
employee of the Company or its subsidiaries. Nonstatutory options may be granted
under the 1989 Plan with an exercise price of not less than 85% of the fair
market value of the Common Stock at the date of grant. As of December 31, 1996,
options to purchase 265,500 shares, at a weighted average exercise price of
$1.92, were outstanding under the 1989 Plan.
 
     In March 1994, the Company's Board of Directors authorized the grant of
options to purchase up to 200,000 shares of the Company's Common Stock, and, in
connection with the private placement of Series A Preferred Stock in May 1994,
authorized the grant of options to purchase up to an additional 500,000 shares
of the Company's Common Stock (collectively, the "1994 Plans"). Since approval
of these options by the shareholders of the Company has not and will not be
sought, all options granted under the 1994 Plans will be deemed nonstatutory
options that do not entitle the recipients thereof the special federal income
tax treatment afforded to the recipients of incentive stock options. The
Company's Board of Directors, with Mr. Gruber abstaining, approved the grant to
Mr. Gruber of an option to purchase up to 150,000 shares of Common Stock at
$1.19 per share, and in May 1994, again with Mr. Gruber abstaining, approved the
grant of an option to Mr. Gruber to purchase up to an additional 200,000 shares
of Common Stock under the 1994 Plans, at $1.50 per share, as required by his new
employment agreement. See "Management -- Employment Agreements." As of December
31, 1996, options to purchase a total of 620,000 of these shares, at exercise
prices ranging from $1.19 to $4.50, were outstanding.
 
     In July 1996, the Company's Board of Directors authorized the grant of
options to purchase up to 500,000 shares of the Company's Common Stock. These
non-statutory options may be granted to employees, non-employee officers and
Directors, consultants, vendors, customers and others expected to provide
significant service to the Company. The exercise price of the stock options
cannot be less than the fair market value at the date of the grant (110% if
granted to an employee who owns 10% or more of the common stock). Additionally,
each non-employee director will be granted a non-statutory stock option to
purchase 5,000 shares at fair market value per share on the date of grant, for
each year of continuous service on the Company's Board of Directors. At December
31, 1996, options to purchase an aggregate of 110,000 of these shares, at the
exercise price of $4.50 per share, were outstanding.
 
                                       34
<PAGE>   35
 
     The following table sets forth certain information regarding options
granted by the Company during the year ended December 31, 1996 to the executive
officers of the Company identified in the Summary Compensation Table set forth
above:
 
                     OPTIONS GRANTED IN CALENDAR YEAR 1996
 
<TABLE>
<CAPTION>
                                                                                           POTENTIAL REALIZED
                                                                                            VALUE AT ASSUMED
                                         NO. OF        % OF                               ANNUAL RATES OF STOCK
                                         SHARES       TOTAL                                PRICE APPRECIATION
                                       SUBJECT TO    OPTIONS                               FOR OPTION TERM(3)
                                        OPTIONS     GRANTED TO   EXERCISE    EXPIRATION   ---------------------
          NAME OF OPTIONEE             GRANTED(1)   EMPLOYEES    PRICE(2)       DATE         5%          10%
- -------------------------------------  ----------   ----------   ---------   ----------   --------     --------
<S>                                    <C>          <C>          <C>         <C>          <C>          <C>
Evan M. Gruber.......................    110,000        35%        $2.13     12/31/2005   $129,000     $318,000
Michael G. Rhodes....................    105,000        33%      2.13-4.50    7/11/2006    188,500      464,500
</TABLE>
 
- ---------------
 
(1) Options are exercisable starting 12 months after the grant date with 25%
    vesting each year.
 
(2) The exercise price was the market price of a share of the Company's Common
    Stock on the date of grant.
 
(3) On December 31, 1996, the closing sales price for a share of the Company's
    Common Stock on The Nasdaq National Market was $7.875.
 
     The following table sets forth information regarding options exercised
during the year ended December 31, 1996 by the executive officers of the Company
identified in the Summary Compensation Table set forth above, as well as the
aggregate value of unexercised options held by such executive officers at
December 31, 1996. The Company has no outstanding stock appreciation rights,
either freestanding or in tandem with options.
 
 AGGREGATED OPTION EXERCISES LAST FISCAL YEAR AND FISCAL YEAR END OPTION VALUES
 
<TABLE>
<CAPTION>
                                                                                              VALUE OF UNEXERCISED
                                                            NUMBER OF UNEXERCISED             IN-THE-MONEY OPTIONS
                             SHARES                      OPTIONS AT FISCAL YEAR END         AT FISCAL YEAR END($)(1)
                           ACQUIRED ON      VALUE       -----------------------------     -----------------------------
          NAME             EXERCISE(#)     REALIZED     EXERCISABLE     UNEXERCISABLE     EXERCISABLE     UNEXERCISABLE
- -------------------------  -----------     --------     -----------     -------------     -----------     -------------
<S>                        <C>             <C>          <C>             <C>               <C>             <C>
Evan M. Gruber...........         --            --        201,250          333,750        $ 1,312,000      $ 2,095,000
Michael G. Rhodes........         --            --         62,000          148,000            248,000          760,000
</TABLE>
 
- ---------------
 
(1) Calculated based on the closing sales price of the Company's Common Stock as
    reported on The Nasdaq National Market on December 31, 1996, which was
    $7.875 per share.
 
CERTAIN TRANSACTIONS
 
     The Company leases its two facilities located in Perris, California, and
the land on which the manufacturing facility is located in Lathrop, California,
from Mr. Bashaw and general partnerships of which Messrs. Bashaw, Goldenetz and
Gruber together own a controlling interest, pursuant to standard industrial
leases. Under the terms of these leases, the Company is obligated to pay base
monthly payments which aggregate $67,000, subject to escalation in accordance
with changes in applicable cost of living indices. Due to the recent declines in
real estate values, Mr. Bashaw and the general partnerships reduced the base
monthly lease rates for the year ending December 31, 1994, for the manufacturing
facilities to an aggregate of $36,000. This base rent is subject to upward
adjustment to market rates each year based on annual market surveys conducted by
the parties. Because real estate values have remained depressed, no such
adjustment has yet been made. These leases expire in 2014 and 2019.
 
     Messrs. Goldenetz and Gruber together own 60% of the capital stock of Class
Leasing, Inc., a California corporation ("Class Leasing"), in which the Company
has no ownership interest. Mr. Goldenetz is a full-time employee of Class
Leasing, serving as its President. In 1996, Mr. Gruber spent less than 10 hours
per month in connection with the affairs of Class Leasing. Class Leasing
purchases modular relocatable classrooms from the Company, upon standard terms
and at standard wholesale prices, and leases them to third parties primarily
 
                                       35
<PAGE>   36
 
under three-year leases, cancelable yearly. During the years ended December 31,
1994, 1995, and 1996, and the six months ended June 30, 1997, the Company sold
modular relocatable classrooms to Class Leasing for aggregate purchase prices of
$1,009,000, $600,000, $1,453,000 and $745,000, respectively, which represented
approximately 5%, 3%, 3% and 1% of the Company's net sales for each of those
periods.
 
     Messrs. Gruber and Rhodes have personally guaranteed certain of the
Company's obligations and the repayment by the Company of amounts which surety
companies may be required to expend under the terms of performance bonds issued
in connection with manufacturing contracts undertaken by the Company. No
payments have been made to Messrs. Gruber and Rhodes for the guarantees provided
by them.
 
     In 1996, the Company paid $7,500 to L.H. Friend, Weinress, Frankson &
Presson, Inc. ("L.H. Friend") for certain financial advisory services. Robert W.
Campbell, a director of the Company, is an executive officer of L.H. Friend. In
addition, L.H. Friend is one of the Underwriters of this Offering.
 
     For legal services rendered, the Company paid the law firm of Phillips &
Haddan LLP legal fees of approximately $20,000 during the year ended December
31, 1996. James M. Phillips, Jr., a director of the Company, is a principal of
the law firm of Phillips & Haddan LLP.
 
     The Company is a party to an employment agreement with Mr. Gruber, and to
indemnification agreements with each of its directors and executive officers.
See "Management -- Employment Agreement" and "Description of Capital
Stock -- Limitation of Liability and Indemnification."
 
                                       36
<PAGE>   37
 
                       PRINCIPAL AND SELLING SHAREHOLDERS
 
   
     The following table sets forth certain information regarding the beneficial
ownership of the Company's Common Stock as of September 30, 1997, and as
adjusted to reflect the sale of 1,000,000 shares by the Company and the sale of
750,000 shares by the Selling Shareholders, by (i) each director of the Company,
(ii) each person or group known to the Company to be the beneficial owner of
more than 5% of the outstanding Common Stock, (iii) each Selling Shareholder,
and (iv) all Directors and executive officers of the Company as a group. Except
as may be indicated in the footnotes to the table, each of such persons has the
sole voting and investment power with respect to the shares owned, subject to
applicable community property laws. Except as otherwise indicated, the address
of each holder identified below is in care of the Company, 2830 Barrett Avenue,
Perris, California 92571.
    
 
   
<TABLE>
<CAPTION>
                                                       SHARES                            SHARES
                                                 BENEFICIALLY OWNED                BENEFICIALLY OWNED
                                                      PRIOR TO         NUMBER OF        AFTER THE
                                                     OFFERING(1)         SHARES        OFFERING(1)
                                                 -------------------     BEING     -------------------
                     NAME                          NUMBER    PERCENT    OFFERED      NUMBER    PERCENT
- -----------------------------------------------  ----------  -------   ----------  ----------  -------
<S>                                              <C>         <C>       <C>         <C>         <C>
Gerald B. Bashaw (2)(15).......................     583,674     6.7%      175,000     408,674     4.2%
Evan M. Gruber (3)(15).........................     416,995     4.6        75,000     341,995     3.4
Michael G. Rhodes (4)..........................      88,250     1.0        25,000      63,250       *
Robert W. Campbell (5).........................      21,000       *            --      21,000       *
James D. Goldenetz (6)(15).....................     159,531     1.8        25,000     134,531     1.4
Charles C. McGettigan (7)(14)..................   3,014,186    34.6       450,000   2,564,186    26.4
James M. Phillips, Jr. (8).....................      15,000       *            --      15,000       *
Myron A. Wick, III (7)(14).....................   3,014,186    34.6       450,000   2,564,186    26.4
Jon D. Gruber (9)(14)..........................   5,259,096    60.4       450,000   4,809,096    49.5
J. Patterson McBaine (10)(14)..................   5,199,896    59.7       450,000   4,749,896    48.9
Gruber & McBaine Capital Management (11)(14)...   2,172,410    24.9            --   2,172,410    22.4
Platinum Partners, L.P. (12)...................     522,000     6.0            --     522,000     5.4
Proactive Partners, L.P. (13)(14)(15)..........   2,983,441    34.3       450,000   2,533,441    26.1
All directors and officers as a group (9
  persons) (2)(3)(4)(5)(6)(7)(8)(15)...........   4,298,636    46.5       750,000   3,548,636    34.6
</TABLE>
    
 
- ---------------
 
  *  Less than one percent.
 
 (1) In calculating beneficial and percentage ownership, all shares of Common
     Stock which a named shareholder will have the right to acquire within 60
     days of the date of this Prospectus upon exercise of stock options are
     deemed to be outstanding for the purpose of computing the ownership of such
     shareholder, but are not deemed to be outstanding for the purpose of
     computing the percentage of Common Stock owned by any other shareholder. As
     of September 30, 1997, an aggregate of 8,705,836 shares of Common Stock
     were outstanding. Does not give effect to the potential issuance of
     1,206,933 shares of Common Stock upon exercise of stock options that have
     been granted but currently are not, and within 60 days of the date of this
     Prospectus will not be, exercisable, or of up to 196,667 additional shares
     issuable upon exercise of options available for the future grant of options
     under the Company's stock option plans. See "Management -- Stock Options."
 
 (2) Includes 10,000 shares issuable upon exercise of stock options.
 
 (3) Includes 316,250 shares issuable upon exercise of stock options, but does
     not include 352,083 shares issuable upon exercise of stock options which
     have been granted but currently are not exercisable. Evan M. Gruber and Jon
     D. Gruber are not related.
 
 (4) Includes 61,250 shares issuable upon exercise of stock options, but does
     not include 204,250 shares issuable upon exercise of stock options which
     have been granted but currently are not exercisable.
 
 (5) Includes 15,000 shares issuable upon exercise of stock options.
 
 (6) Includes 105,000 shares issuable upon exercise of stock options.
 
                                       37
<PAGE>   38
 
 (7) Includes 20,745 shares owned of record directly by each of Messrs.
     McGettigan and Wick, and all shares owned of record by Proactive Partners,
     L.P. and affiliates of which Messrs. McGettigan and Wick are general
     partners. Also includes options to purchase 10,000 shares which have been
     granted to each of Messrs. McGettigan and Wick for serving on the Company's
     Board of Directors.
 
 (8) All of these shares are issuable upon exercise of stock options.
 
 (9) Includes 103,245 shares owned of record directly by Mr. Gruber, all shares
     owned of record by Proactive Partners, L.P. and affiliates, of which Mr.
     Gruber is a general partner, and all shares owned of record by Gruber &
     McBaine Capital Management and affiliates, of which Mr. Gruber is a general
     partner. Jon D. Gruber and Evan M. Gruber are not related.
 
(10) Includes 44,045 shares owned of record directly by Mr. McBaine, all shares
     owned of record by Proactive Partners and affiliates, of which Mr. McBaine
     is a general partner, and all shares owned of record by Gruber & McBaine
     Capital Management and affiliates, of which Mr. McBaine is a general
     partner.
 
(11) Includes 110,200 shares owned of record directly by Gruber & McBaine
     Capital Management, all shares owned of record by Proactive Partners, L.P.
     and affiliates, and 2,062,210 shares owned of record by Lagunitas Partners,
     Gruber & McBaine International and GMJ Investments, affiliated entities.
 
(12) These shares are owned of record by Platinum Partners, L.P., a
     Massachusetts limited partnership (the "Partnership"), and also are deemed
     to be beneficially owned by Hori Capital Management, Inc., the sole general
     partner of the Partnership, and by Calvin G. Hori, the sole shareholder,
     director and President of Hori Capital Management, Inc., the address of
     each of which is One Washington Mall, 7th Floor, Boston, Massachusetts
     02108.
 
(13) Includes 2,828,884 shares owned of record by Proactive Partners, L.P. and
     154,557 shares owned of record by Fremont Proactive Partners, an affiliated
     entity.
 
(14) The address of each of Charles C. McGettigan, Myron A. Wick, III, Jon D.
     Gruber, J. Patterson McBaine, Gruber & McBaine Capital Management and
     Proactive Partners, L.P. is 50 Osgood Place, San Francisco, CA 94133.
 
   
(15) In the event the Underwriter's over-allotment option is exercised in full,
     Messrs. Bashaw, Gruber and Goldenetz, and Proactive Partners, L.P. would
     sell an additional 18,125, 25,000, 15,000 and 204,375 shares, respectively,
     and would beneficially own 4.0%, 3.2%, 1.2% and 24.0%, respectively, of the
     Common Stock outstanding after the Offering.
    
 
                                       38
<PAGE>   39
 
                          DESCRIPTION OF CAPITAL STOCK
 
     The Company's authorized capital stock consists of 20,000,000 shares of
Common Stock, $.01 par value, of which 8,705,836 shares were issued and
outstanding as of September 30, 1997, and 5,000,000 shares of Preferred Stock,
$.01 par value, of which no shares currently are outstanding.
 
COMMON STOCK
 
     Holders of the Common Stock are entitled to one vote per share on each
matter submitted to a vote of the shareholders of the Company and to cumulate
votes for the election of directors. Subject to preferences that may be
applicable to the holders of any outstanding Preferred Stock, each holder of
Common Stock is entitled to receive ratably such dividends, if any, as may be
declared by the Company's Board of Directors out of funds legally available
therefor. See "Dividend Policy." Upon the liquidation, dissolution or winding up
of the Company, the holders of Common Stock are entitled to share ratably in all
assets of the Company which are legally available for distribution, after
payment of all debts and other liabilities and the liquidation preference of any
outstanding Preferred Stock. Holders of Common Stock have no preemptive,
subscription, redemption or conversion rights. The outstanding shares of Common
Stock are, and the shares to be sold by the Company in this Offering, will be,
when issued and delivered, validly issued, fully-paid and nonassessable under
the laws of the State of California.
 
PREFERRED STOCK
 
     The Company's Board of Directors is authorized, subject to any limitations
prescribed by the laws of the State of California, but without further vote or
action by the Company's shareholders, to provide for the issuance of Preferred
Stock in one or more series, to establish from time to time the number of shares
to be included in each such series, to fix the designations, powers, preferences
and rights of the shares of each such series and any qualifications, limitations
or restrictions thereof, and to increase or decrease the number of shares of any
such series (but not below the number of shares of such series then
outstanding). The Board may authorize and issue Preferred Stock with voting or
conversion rights that could adversely affect the voting power or other rights
of the holders of Common Stock. In addition, the issuance of Preferred Stock may
have the effect of delaying, deferring or preventing a change in control of the
Company. The Company has no current plans to issue any shares of Preferred
Stock.
 
TRANSFER AGENT AND REGISTRAR
 
     The transfer agent and registrar for the Common Stock is ChaseMellon
Shareholder Services L.L.C.
 
LIMITATION OF LIABILITY AND INDEMNIFICATION
 
     As allowed by the California General Corporation Law, the Articles of
Incorporation of the Company provide that the liability of the directors of the
Company for monetary damages shall be eliminated to the fullest extent
permissible under California law. This is intended to eliminate the personal
liability of a director for monetary damages in an action brought by or in the
right of the Company for breach of a director's duties to the Company or its
shareholders except for liability for acts or omissions that involve intentional
misconduct or knowing and culpable violation of law, for acts or omissions that
a director believes to be contrary the best interests of the Company or its
shareholders or that involve the absence of good faith on the part of the
director, for any transaction from which a director derived an improper personal
benefit, for acts or omissions that show a reckless disregard for the director's
duty to the Company or its shareholders in circumstances in which the director
was aware, or should have been aware, in the ordinary course of performing a
director's duties, of a risk of serious injury to the Company or its
shareholders, for acts or omissions that constitute an unexcused pattern of
inattention that amounts to an abdication of the director's duty to the Company
or its shareholders, with respect to certain contracts in which a director has a
material financial interest and for approval of certain improper distributions
to shareholders or certain loans or guarantees. This provision does not limit or
eliminate the rights of the Company or any shareholder to seek non-monetary
relief such as an injunction or rescission in the event of a breach of a
director's duty of care.
 
                                       39
<PAGE>   40
 
     The Company's Bylaws require the Company to indemnify its officers,
directors, employees and other agents to the full extent permitted by law,
including those circumstances in which indemnification would otherwise be
discretionary. In addition, the Company's Articles of Incorporation expressly
authorize the use of indemnification agreements and, with the approval of its
shareholders, the Company has entered into separate indemnification agreements
with each of its directors. The Company's Board of Directors has authorized
similar indemnification agreements for the Company's officers. These agreements
may require the Company, among other things, to indemnify directors and officers
against certain liabilities that may arise by reason of their status or service
as directors and officers, and to advance their expenses incurred as a result of
any proceeding against them as to which they could be indemnified.
 
CHANGES UPON BECOMING A LISTED CORPORATION
 
     The Articles of Incorporation of the Company provide that, upon the Company
becoming a "listed corporation" (as defined below), the Board of Directors will
be divided into three classes of directors, serving staggered three-year terms,
and cumulative voting will be eliminated. As a result, if the Company becomes a
listed corporation, approximately one-third of the Board of Directors will be
elected each year and no shareholder will be entitled to cumulate votes in the
election of directors.
 
     The Company will be deemed to be a "listed corporation" if it has
outstanding shares listed on the New York or American Stock Exchanges or the
Company has outstanding securities designated as qualified for trading as a
national market system security on the National Association of Securities
Dealers Automated Quotation System ("Nasdaq"), or any successor national market
system, if the Company has at least 800 holders of its equity securities as of
the record date of the Company's most recent annual meeting of shareholders. For
purposes of determining the number of holders of the Company's equity
securities, there would be included, in addition to the number of record holders
reflected on the Company's stock records, the number of holders of the equity
securities held in the name of any nominee holder and certified by such nominee
holder. The Company would be required to maintain any such certification with
the record of shareholders for inspection and copying as provided under the
General Corporation Law of California.
 
   
     The Company's Common Stock currently is listed on The Nasdaq National
Market, and the Company has been advised by the Underwriters that the number of
holders of the Company's Common Stock is likely to increase to at least 800 as a
consequence of this Offering. In such event, the Company would be deemed to be a
"listed corporation," and intends to cause the classified board provision in its
Articles of Incorporation to become operative by electing a classified board,
without cumulative voting, at its next annual meeting of shareholders. This may
discourage a third party from making a tender offer or otherwise attempting to
obtain control of the Company, even though such an attempt might be beneficial
to the Company and its shareholders. In addition, the classified board provision
could delay shareholders who do not like the policies of the Board of Directors
from removing a majority of the Board for two years, unless they can show cause
and obtain the requisite vote. Also, without cumulative voting, a purchaser of a
block of stock of the Company constituting less than a majority of the
outstanding shares will have no assurance of proportional representation on the
Board of Directors. Following this offering, the current directors and executive
officers of the Company will continue to own or have voting control over an
aggregate of 3,548,636 shares of the Company's Common Stock, or approximately
35% of the shares then outstanding. See "Principal and Selling Shareholders."
    
 
                                       40
<PAGE>   41
 
                                  UNDERWRITING
 
     The Underwriters named below have severally agreed, subject to the terms
and conditions of the Underwriting Agreement, to purchase from the Company and
the Selling Shareholders the number of shares of Common Stock set forth opposite
their respective names below. The Underwriters are required to purchase and pay
for all of such shares if any are purchased.
 
   
<TABLE>
<CAPTION>
                                                                          NUMBER OF
                                                                          SHARES OF
                              NAME OF UNDERWRITER                        COMMON STOCK
        ---------------------------------------------------------------  ------------
        <S>                                                              <C>
        Bear, Stearns & Co. Inc........................................    1,225,000
        Cruttenden Roth Incorporated...................................      262,500
        L.H. Friend, Weinress, Frankson & Presson, Inc.................      262,500
                                                                           ---------
                  Total................................................    1,750,000
                                                                           =========
</TABLE>
    
 
   
     The Underwriters have advised the Company and the Selling Shareholders that
they propose to offer the Common Stock to the public on the terms set forth on
the cover page of this Prospectus. The Underwriters may allow selected dealers a
concession of not more than $0.66 per share, and the Underwriters may allow, and
such dealers may re-allow, a concession of not more than $0.10 per share to
certain other dealers. After the initial offering, the price and concessions and
re-allowances to dealers may be changed by the Underwriters. The Common Stock is
offered subject to receipt and acceptance by the Underwriters and to certain
other conditions, including the right to reject orders in whole or in part.
    
 
   
     Certain of the Selling Shareholders have granted a 30-day option to the
Underwriters to purchase up to a maximum of 262,500 additional shares of Common
Stock to cover over-allotments, if any, at the same price per share as the
initial 1,750,000 shares to be purchased by the Underwriters. To the extent the
Underwriters exercise this option, each of the Underwriters will be committed,
subject to certain conditions, to purchase such additional shares in
approximately the same proportion as set forth in the foregoing table. The
Underwriters may purchase such shares only to cover over-allotments made in
connection with the sale of the Common Stock offered hereby.
    
 
     The Underwriting Agreement provides that the Company and the Selling
Shareholders will indemnify the Underwriters against certain liabilities,
including liabilities under the Securities Act, or will contribute to payments
the Underwriters may be required to make in respect thereof.
 
     The Company has also agreed not to offer, issue, sell, contract to sell,
grant any option for the sale of, or otherwise dispose of, directly or
indirectly, any shares of Common Stock or any securities convertible into or
exercisable or exchangeable for Common Stock or any rights to acquire Common
Stock for a period of 90 days after the date of this Prospectus, without the
prior written consent of Bear, Stearns & Co. Inc., subject to certain limited
exceptions. The executive officers and directors of the Company, including the
Selling Shareholders, have agreed with the Underwriters that they that they will
not, without the prior written consent of Bear, Stearns & Co. Inc., offer, sell,
contract to sell or otherwise dispose of any shares of Common Stock or any
securities convertible into or exchangeable for Common Stock for a period of 180
days after the date of this Prospectus, subject to certain limited exceptions.
 
     The Underwriters may engage in over-allotments, stabilizing transactions,
syndicate covering transactions and penalty bids in accordance with Regulation M
under the Exchange Act. Over-allotment involves syndicate sales in excess of the
offering size, which creates a syndicate short position. Stabilizing
transactions permit bids for and purchases of the Common Stock so long as the
stabilizing bids do not exceed a specified maximum. Syndicate covering
transactions involve purchase of the Common Stock in the open market in order to
cover syndicate short positions. Penalty bids permit the Underwriters to reclaim
a selling concession from a syndicate member when the shares of Common Stock
originally sold by such syndicate member are purchased in a stabilizing
transaction or syndicate covering transaction to cover syndicate short
positions. Such stabilizing transactions, syndicate covering transactions and
penalty bids may cause the price of the Common Stock to be higher than it would
otherwise be in the absence of such transactions. These transactions, if
commenced, may be discontinued at any time.
 
                                       41
<PAGE>   42
 
                                 LEGAL MATTERS
 
     Certain legal matters with respect to the legality under California law of
the issuance of the shares of Common Stock offered hereby will be passed upon
for the Company and the Selling Shareholders by Phillips & Haddan LLP, Newport
Beach, California. James M. Phillips, Jr., a principal in the firm of Phillips &
Haddan LLP, is a member of the Company's Board of Directors and holds options to
purchase 15,000 shares of the Company's Common Stock. Certain legal matters will
be passed upon for the Underwriters by Gibson, Dunn & Crutcher LLP, Los Angeles,
California.
 
                                    EXPERTS
 
     The financial statements and schedules of the Company as of December 31,
1995 and 1996, and for each of the years in the three-year period ended December
31, 1996, have been included herein and in the Registration Statement in
reliance upon the report of KPMG Peat Marwick LLP, independent certified public
accountants, appearing elsewhere herein, and upon the authority of said firm as
experts in accounting and auditing.
 
                             AVAILABLE INFORMATION
 
     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith file reports, proxy statements and other information with the
Securities and Exchange Commission (the "Commission"). The Commission file
number for the Company is 0-18680. Such reports and other information may be
inspected and copied at the Commission's Public Reference Section, Room 1024,
450 Fifth Street, N.W., Washington, D.C. 20549, where copies can be obtained at
prescribed rates, as well as at the Commission's regional offices at Northwest
Atrium Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661 and
7 World Trade Center, Suite 1300, New York, New York 10048. The Commission also
maintains a website that contains reports, proxy and other information filed
electronically with the Commission, the address of which is 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 of 1933,
as amended (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 1024, 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.
 
                                       42
<PAGE>   43
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Independent Auditors' Report..........................................................   F-2
Balance Sheets:
  December 31, 1995 and 1996, and June 30, 1997 (unaudited)...........................   F-3
Statements of Income:
  Years ended December 31, 1994, 1995 and 1996, and
     Six Months ended June 30, 1996 and 1997 (unaudited)..............................   F-4
Statements of Shareholders' Equity:
  Years ended December 31, 1994, 1995 and 1996, and
     Six Months ended June 30, 1997 (unaudited).......................................   F-5
Statements of Cash Flows:
  Years ended December 31, 1994, 1995 and 1996, and
     Six Months ended June 30, 1996 and 1997 (unaudited)..............................   F-6
Notes to Financial Statements.........................................................   F-7
</TABLE>
 
                                       F-1
<PAGE>   44
 
                          INDEPENDENT AUDITORS' REPORT
 
The Board of Directors
Modtech, Inc.:
 
     We have audited the accompanying balance sheets of Modtech, Inc. as of
December 31, 1995 and 1996 and the related statements of income, shareholders'
equity and cash flows for each of the years in the three-year period ended
December 31, 1996. 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 financial statements referred to above present fairly,
in all material respects, the financial position of Modtech, Inc. as of December
31, 1995 and 1996 and the results of its operations and its cash flows for each
of the years in the three-year period ended December 31, 1996, in conformity
with generally accepted accounting principles.
 
KPMG Peat Marwick LLP
 
Orange County, California
March 21, 1997
 
                                       F-2
<PAGE>   45
 
                                 MODTECH, INC.
 
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                DECEMBER 31,
                                                          -------------------------    JUNE 30,
                                                             1995          1996          1997
                                                          -----------   -----------   -----------
                                                                                      (UNAUDITED)
<S>                                                       <C>           <C>           <C>
ASSETS (Note 5)
Current assets:
  Cash..................................................  $   561,000   $   405,000   $ 2,703,000
  Contracts receivable, less allowance for contract
     adjustments of $408,000, $413,000 and $410,000 at
     December 31, 1995, 1996 and June 30, 1997
     (unaudited), respectively (note 2).................    3,169,000    10,310,000    28,659,000
  Costs and estimated earnings in excess of billings on
     contracts (notes 3 and 8)..........................    1,454,000     9,103,000     8,945,000
  Inventories...........................................      646,000     4,167,000     7,852,000
  Due from affiliates (note 8)..........................      766,000       754,000       886,000
  Notes receivable from affiliates (note 8).............      483,000        45,000        45,000
  Prepaid assets........................................       73,000       137,000       204,000
  Other current assets..................................       52,000        20,000        21,000
                                                          -----------   -----------   -----------
          Total current assets..........................    7,204,000    24,941,000    49,315,000
                                                          -----------   -----------   -----------
Property and equipment, net (note 4)....................    7,158,000     8,553,000     8,577,000
                                                          -----------   -----------   -----------
Notes receivable from affiliates (note 8)...............      237,000            --            --
Other assets............................................      555,000       535,000       495,000
                                                          -----------   -----------   -----------
          Total other assets............................      792,000       535,000       495,000
                                                          -----------   -----------   -----------
                                                          $15,154,000   $34,029,000   $58,387,000
                                                          ===========   ===========   ===========
 
LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
  Accounts payable......................................  $ 1,105,000   $ 6,410,000   $ 7,137,000
  Accrued liabilities...................................      956,000     3,214,000     8,580,000
  Billings in excess of costs and estimated earnings on
     contracts (notes 3 and 8)..........................      760,000     1,148,000     6,851,000
  Current maturities of long-term debt (notes 6 and
     8).................................................           --       100,000       100,000
                                                          -----------   -----------   -----------
          Total current liabilities.....................    2,821,000    10,872,000    22,668,000
Note payable (note 5)...................................    1,590,000     5,944,000    13,332,000
Long-term debt, less current maturities (notes 6 and
  8)....................................................    2,000,000     1,900,000     1,800,000
                                                          -----------   -----------   -----------
          Total liabilities.............................    6,411,000    18,716,000    37,800,000
                                                          -----------   -----------   -----------
 
Shareholders' equity:
  5% Convertible Preferred Stock, Series A. Authorized
     5,000,000 shares; issued and outstanding 2,850,000,
     none and none at December 31, 1995, 1996 and June
     30, 1997 (unaudited), respectively (note 11).......    2,685,000            --            --
  Common Stock, $.01 par. Authorized 20,000,000 shares;
     issued and outstanding 3,053,000, 8,649,000 and
     8,679,000 at December 31, 1995, 1996 and June 30,
     1997 (unaudited), respectively (notes 10 and 11)...    1,055,000     4,015,000     4,043,000
  Additional paid-in capital............................   13,619,000    15,693,000    15,744,000
  Retained earnings (deficit)...........................   (8,616,000)   (4,395,000)      800,000
                                                          -----------   -----------   -----------
          Total shareholders' equity....................    8,743,000    15,313,000    20,587,000
Commitments and contingencies (notes 3, 5, 8 and 14)....
                                                          -----------   -----------   -----------
                                                          $15,154,000   $34,029,000   $58,387,000
                                                          ===========   ===========   ===========
</TABLE>
 
                See accompanying notes to financial statements.
 
                                       F-3
<PAGE>   46
 
                                 MODTECH, INC.
 
                              STATEMENTS OF INCOME
 
<TABLE>
<CAPTION>
                                         YEARS ENDED DECEMBER 31,           SIX MONTHS ENDED JUNE 30,
                                  ---------------------------------------   -------------------------
                                     1994          1995          1996          1996          1997
                                  -----------   -----------   -----------   -----------   -----------
                                                                                   (UNAUDITED)
<S>                               <C>           <C>           <C>           <C>           <C>
Net sales (notes 8 and 12)......  $20,355,000   $19,386,000   $49,886,000   $12,704,000   $58,906,000
Cost of goods sold (note 8).....   17,766,000    16,401,000    42,629,000    10,862,000    47,688,000
                                  -----------   -----------   -----------   -----------   -----------
     Gross profit...............    2,589,000     2,985,000     7,257,000     1,842,000    11,218,000
Selling, general and
  administrative expenses.......    1,554,000     1,613,000     2,345,000       848,000     2,182,000
                                  -----------   -----------   -----------   -----------   -----------
     Income from operations.....    1,035,000     1,372,000     4,912,000       994,000     9,036,000
                                  -----------   -----------   -----------   -----------   -----------
Other income (expense):
  Interest expense..............     (576,000)     (486,000)     (446,000)     (127,000)     (572,000)
  Interest income (note 8)......      105,000        99,000        24,000        20,000        23,000
  Other -- net..................       42,000        (1,000)      (13,000)       22,000        64,000
                                  -----------   -----------   -----------   -----------   -----------
                                     (429,000)     (388,000)     (435,000)      (85,000)     (485,000)
                                  -----------   -----------   -----------   -----------   -----------
     Income before income
       taxes....................      606,000       984,000     4,477,000       909,000     8,551,000
Income taxes (note 7)...........        4,000        19,000       208,000        20,000     3,356,000
                                  -----------   -----------   -----------   -----------   -----------
     Net income.................  $   602,000   $   965,000   $ 4,269,000   $   889,000   $ 5,195,000
                                  -----------   -----------   -----------   -----------   -----------
5% Convertible Preferred Stock
  dividend (note 11)............           --      (166,000)      (48,000)      (48,000)           --
     Net income available for
       Common Stock.............  $   602,000   $   799,000   $ 4,221,000   $   841,000   $ 5,195,000
                                  ===========   ===========   ===========   ===========   ===========
Primary earnings per share......  $      0.12   $      0.13   $      0.49   $      0.10   $      0.55
                                  ===========   ===========   ===========   ===========   ===========
Weighted-average shares
  outstanding...................    5,098,000     6,027,000     8,709,000     8,750,000     9,370,000
                                  ===========   ===========   ===========   ===========   ===========
Fully diluted earnings per
  share.........................  $      0.11   $      0.12   $      0.47   $      0.10   $      0.55
                                  ===========   ===========   ===========   ===========   ===========
Weighted-average shares
  outstanding...................    5,294,000     6,712,000     9,041,000     8,750,000     9,370,000
                                  ===========   ===========   ===========   ===========   ===========
</TABLE>
 
                See accompanying notes to financial statements.
 
                                       F-4
<PAGE>   47
 
                                 MODTECH, INC.
 
                       STATEMENTS OF SHAREHOLDERS' EQUITY
 
<TABLE>
<CAPTION>
                                      5% CONVERTIBLE PREFERRED                              STOCK
                                               STOCK                  COMMON STOCK         PURCHASE    ADDITIONAL      RETAINED
                                      ------------------------   ----------------------     NOTES        PAID-IN       EARNINGS
                                        SHARES       AMOUNT       SHARES       AMOUNT     RECEIVABLE     CAPITAL      (DEFICIT)
                                      ----------   -----------   ---------   ----------   ----------   -----------   ------------
        <S>                           <C>          <C>           <C>         <C>          <C>          <C>           <C>
        Balance, December 31,
          1993......................          --   $        --   3,209,000   $1,109,000   $(274,000)   $13,913,000   $(10,017,000)
        Sale of preferred stock
          (note 11).................   2,850,000     2,685,000          --           --          --             --             --
        Net income..................          --            --          --           --          --             --        602,000
                                      ----------   -----------   ---------   ----------   ---------    -----------   ------------
        Balance, December 31,
          1994......................   2,850,000   $ 2,685,000   3,209,000   $1,109,000   $(274,000)   $13,913,000   $ (9,415,000)
        Adjustment of stock purchase
          notes receivable..........          --            --    (156,000)     (54,000)    274,000       (294,000)            --
        Dividend (note11)...........          --            --          --           --          --             --       (166,000)
        Net income..................          --            --          --           --          --             --        965,000
                                      ----------   -----------   ---------   ----------   ---------    -----------   ------------
        Balance, December 31,
          1995......................   2,850,000     2,685,000   3,053,000    1,055,000          --     13,619,000     (8,616,000)
        Conversion of preferred
          stock (note 11)...........  (2,850,000)   (2,685,000)  2,850,000    2,685,000          --             --             --
        Conversion of options and
          warrants (notes 10 and
          11).......................          --            --   2,746,000      275,000          --      2,074,000             --
        Dividend (note 11)..........          --            --          --           --          --             --        (48,000)
        Net income..................          --            --          --           --          --             --      4,269,000
                                      ----------   -----------   ---------   ----------   ---------    -----------   ------------
        Balance, December 31,
          1996......................          --            --   8,649,000    4,015,000          --     15,693,000     (4,395,000)
        Conversion of options (notes
          10 and 11) (unaudited)....          --            --      30,000       28,000          --         51,000             --
        Net income (unaudited)......          --            --          --           --          --             --      5,195,000
                                      ----------   -----------   ---------   ----------   ---------    -----------   ------------
        Balance, June 30, 1997
          (unaudited)...............          --   $        --   8,679,000   $4,043,000   $      --    $15,744,000   $    800,000
                                      ==========   ===========   =========   ==========   =========    ===========   ============
</TABLE>
 
                See accompanying notes to financial statements.
 
                                       F-5
<PAGE>   48
 
                                 MODTECH, INC.
 
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                         YEAR ENDED DECEMBER 31,                SIX MONTHS ENDED JUNE 30,
                                               -------------------------------------------     ----------------------------
                                                  1994            1995            1996            1996             1997
                                               -----------     -----------     -----------     -----------     ------------
                                                                                                       (UNAUDITED)
<S>                                            <C>             <C>             <C>             <C>             <C>
Cash flows from operating activities:
  Net income...............................    $   602,000     $   965,000     $ 4,269,000     $   889,000     $  5,195,000
  Adjustments to reconcile net income to
    net cash provided by (used in)
    operating activities:
    Depreciation and amortization..........        608,000         563,000         540,000         257,000          534,000
    Increase (decrease) in allowance for
      contract adjustments.................       (275,000)        (17,000)         (5,000)             --            3,000
    Loss (gain) on sale of equipment.......        (39,000)        (20,000)         17,000          (5,000)              --
    Changes in assets and liabilities:
    (Increase) decrease in contracts
      receivable...........................      1,363,000         (65,000)     (7,136,000)     (3,575,000)     (18,352,000)
    (Increase) decrease in costs and
      estimated earnings in excess of
      billings.............................       (551,000)        330,000      (7,649,000)     (3,005,000)         158,000
    (Increase) decrease in inventories.....       (174,000)        338,000      (3,521,000)       (857,000)      (3,685,000)
    (Increase) decrease in amounts due from
      affiliates...........................       (290,000)       (257,000)        687,000         555,000         (132,000)
    (Increase) decrease in prepaids and
      other assets.........................        183,000          54,000         (12,000)         93,000          (28,000)
    Increase (decrease) in accounts
      payable..............................     (1,583,000)       (436,000)      5,305,000       1,988,000          727,000
    Increase in accrued liabilities........        475,000          35,000       2,258,000         210,000        5,366,000
    Increase (decrease) in billings in
      excess of costs and earnings.........        109,000        (276,000)        388,000         951,000        5,703,000
                                               -----------     -----------     -----------     -----------     ------------
    Net cash provided by (used in)
      operating activities.................        428,000       1,214,000      (4,859,000)     (2,499,000)      (4,511,000)
                                               -----------     -----------     -----------     -----------     ------------
Cash flows from investing activities:
  Proceeds from sale of equipment..........         81,000          46,000           6,000          12,000           12,000
  Purchase of property and equipment.......       (200,000)       (482,000)     (1,958,000)       (353,000)        (570,000)
                                               -----------     -----------     -----------     -----------     ------------
    Net cash used in investing
      activities...........................       (119,000)       (436,000)     (1,952,000)       (341,000)        (558,000)
                                               -----------     -----------     -----------     -----------     ------------
Cash flows from financing activities:
  Net principal borrowings (payments) under
    revolving credit lines.................     (1,804,000)       (310,000)      4,354,000       2,152,000        7,388,000
  Principal payments on long-term debt.....     (1,185,000)       (503,000)             --              --         (100,000)
  (Adjustment of) stock purchase note
    receivable by exchange of Common
    Stock..................................             --         (74,000)             --              --               --
  Net proceeds from issuance of Common
    Stock shares...........................             --              --       2,349,000              --           79,000
  Declared dividends.......................             --        (166,000)        (48,000)        (48,000)              --
  Conversion of stock warrants and
    options................................             --              --              --         536,000               --
  Net proceeds from sale of convertible
    preferred stock (note 11)..............      2,685,000              --              --              --               --
                                               -----------     -----------     -----------     -----------     ------------
    Net cash provided by (used in)
      financing activities.................       (304,000)     (1,053,000)      6,655,000       2,640,000        7,367,000
                                               -----------     -----------     -----------     -----------     ------------
    Net increase (decrease) in cash........          5,000        (275,000)       (156,000)       (200,000)       2,298,000
Cash at beginning of year..................        831,000         836,000         561,000         561,000          405,000
                                               -----------     -----------     -----------     -----------     ------------
Cash at end of year........................    $   836,000     $   561,000     $   405,000     $   361,000     $  2,703,000
                                               ===========     ===========     ===========     ===========     ============
</TABLE>
 
                See accompanying notes to financial statements.
 
                                       F-6
<PAGE>   49
 
                                 MODTECH, INC.
 
                         NOTES TO FINANCIAL STATEMENTS
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
 1. DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
DESCRIPTION OF BUSINESS
 
     Modtech, Inc. (the "Company") designs, manufactures, markets and installs
modular relocatable classrooms.
 
     The Company's classrooms are sold primarily to California school districts.
The Company also sells classrooms to the State of California and to leasing
companies, who lease the classrooms principally to California school districts.
 
     Effective October 1, 1996, the Company acquired substantially all of the
operating assets of Miller Structures, Inc. - California. In addition, the
Company assumed certain liabilities. The Company entered into a lease agreement
to rent the manufacturing facility. Miller Structures, Inc. - California
manufactures and markets factory-built buildings.
 
USE OF ESTIMATES
 
     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
disclosures of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the reported
period. Actual results could differ from those estimates.
 
CASH AND CASH EQUIVALENTS
 
     For purposes of the statements of cash flows, the Company considers all
highly liquid debt instruments with original maturities of three months or less
to be cash equivalents. Substantially all cash deposits are maintained in one
financial institution.
 
FAIR VALUE OF FINANCIAL INSTRUMENTS
 
     The carrying value of cash, contracts receivable and notes receivable,
costs and estimated earnings in excess of billings on contracts, prepaid and
other assets, accounts payable, accrued liabilities, billings in excess of
estimated earnings on contracts and notes payable are measured at cost which
approximates their fair value.
 
CONSTRUCTION CONTRACTS
 
     The accompanying financial statements have been prepared using the
percentage-of-completion method of accounting and, therefore, take into account
the costs, estimated earnings and revenue to date on contracts not yet
completed. Revenue recognized is that percentage of the total contract price
that cost expended to date bears to anticipated final total cost, based on
current estimates of costs to complete. Most contracts are completed within one
year.
 
     Contract costs include all direct material and labor costs and those
indirect costs related to contract performance, such as indirect labor,
supplies, tools, repairs and depreciation costs. Selling, general and
administrative costs are charged to expense as incurred. At the time a loss on a
contract becomes known, the entire amount of the estimated ultimate loss is
recognized in the financial statements.
 
     The current asset, "Costs and Estimated Earnings in Excess of Billings on
Contracts," represents revenues recognized in excess of amounts billed. The
current liability, "Billings in Excess of Costs and Estimated Earnings on
Contracts," represents billings in excess of revenues recognized.
 
                                       F-7
<PAGE>   50
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
     The current contra asset, "Allowance for Contract Adjustments," is
management's estimated adjustments to contract amounts due to disputes and or
litigation.
 
INVENTORIES
 
     Inventories are valued at the lower of cost or market. Cost is determined
by the first-in, first-out (FIFO) method. Inventories, generally include only
raw materials, as any work-in-process or finished goods are accounted for in
percentage of completion allocations. The Company held finished inventory of
$202,000 and $0 at December 31, 1995 and 1996, respectively.
 
PROPERTY AND EQUIPMENT
 
     Property and equipment are stated at cost. Depreciation and amortization is
provided using the straight-line and accelerated methods over the following
estimated useful lives:
 
<TABLE>
                <S>                                             <C>
                Leasehold improvements........................  15 to 31 years
                Machinery and equipment.......................   5 to 7 years
                Trucks and automobiles........................   3 to 5 years
                Office equipment..............................   5 to 7 years
</TABLE>
 
IMPAIRMENT OF LONG-LIVED ASSETS AND LONG-LIVED ASSETS TO BE DISPOSED OF
 
     The Company adopted the provisions of Statement of Financial Accounting
Standard No. 121 (SFAS No. 121), "Accounting for the Impairment of Long-Lived
Assets and for Long-Lived Assets to Be Disposed Of," on January 1, 1996. This
Statement requires that long-lived assets and certain identifiable intangibles
be reviewed for impairment whenever events or changes in circumstances indicate
that the carrying amount of an asset may not be recoverable. Recoverability of
assets to be held and used is measured by a comparison of the carrying amount of
an asset to future net cash flows expected to be generated by the asset. If such
assets are considered to be impaired, the impairment to be recognized is
measured by the amount by which the carrying amount of the assets exceed the
fair value of the assets. Assets to be disposed of are reported at the lower of
the carrying amount of fair value less costs to sell. Adoption of this Statement
did not have a material impact on the Company's financial position, results of
operations or liquidity.
 
STOCK OPTION PLAN
 
     Prior to January 1, 1996, the Company accounted for its stock option plan
in accordance with the provisions of Accounting Principles Board (APB) Opinion
No. 25, "Accounting for Stock Issued to Employees," and related interpretations.
As such, compensation expense would be recorded on the date of grant only if the
current market price of the underlying stock exceeded the exercise price. On
January 1, 1996, the Company adopted Statement of Financial Accounting Standard
No. 123 (SFAS No. 123), "Accounting for Stock-Based Compensation," which permits
entities to recognize as expense over the vesting period the fair value of all
stock-based awards on the date of grant. Alternatively, SFAS No. 123 also allows
entities to continue to apply the provisions of APB Opinion No. 25 and provide
pro forma net income and pro forma earnings per share disclosures for employee
stock option grants made in 1995 and future years as if the fair-value-based
method defined in SFAS No. 123 had been applied. The Company has elected to
continue to apply the provision of APB Opinion No. 25 and provide the pro forma
disclosure provisions of SFAS No. 123.
 
                                       F-8
<PAGE>   51
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
TAXES ON INCOME
 
     Income taxes are accounted for under the asset and liability method.
Deferred tax assets and liabilities are recognized for the future tax
consequences attributable to differences between the financial statement
carrying amounts of existing assets and liabilities and their respective tax
bases and tax credit carryforwards. Deferred tax assets and liabilities are
measured using enacted tax rates expected to apply to taxable income in the
years in which those temporary differences are expected to be recovered or
settled. The effect on deferred tax assets and liabilities of a change in tax
rates is recognized in income in the period that includes the enactment date.
 
EARNINGS PER SHARE
 
     Earnings per share are computed on the basis of the weighted average number
of common and dilutive common equivalent shares outstanding during each year.
 
RECLASSIFICATION
 
     Certain amounts in the 1994 and 1995 financial statements have been
reclassified to conform to the 1996 presentation.
 
 2. CONTRACTS RECEIVABLE
 
     Contracts receivable consisted of customer billings for:
 
<TABLE>
<CAPTION>
                                                          DECEMBER 31,
                                                   --------------------------      JUNE 30,
                                                      1995           1996            1997
                                                   ----------     -----------     -----------
                                                                                  (UNAUDITED)
    <S>                                            <C>            <C>             <C>
    Completed contracts..........................  $  675,000     $ 7,723,000     $ 1,366,000
    Contracts in progress........................   2,613,000       2,103,000      25,288,000
    Retentions...................................     289,000         897,000       2,415,000
                                                   ----------     -----------     -----------
                                                    3,577,000      10,723,000      29,069,000
    Less allowance for contract adjustments......    (408,000)       (413,000)       (410,000)
                                                   ----------     -----------     -----------
                                                   $3,169,000     $10,310,000     $28,659,000
                                                   ==========     ===========     ===========
</TABLE>
 
 3. COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS ON CONTRACTS
 
     Net costs and estimated earnings in excess of billings on contracts
consisted of:
 
<TABLE>
<CAPTION>
                                                        DECEMBER 31,
                                                -----------------------------      JUNE 30,
                                                    1995             1996            1997
                                                ------------     ------------     -----------
                                                                                  (UNAUDITED)
    <S>                                         <C>              <C>              <C>
    Net costs and estimated earnings on
      uncompleted contracts...................  $ 22,744,000     $ 39,093,000     $93,369,000
    Billings to date..........................   (22,213,000)     (31,173,000)     91,266,000
                                                ------------     ------------     -----------
                                                     531,000        7,920,000       2,103,000
    Net unbilled receivables (payables) from
      completed contracts.....................       163,000           35,000          (9,000)
                                                ------------     ------------     -----------
                                                $    694,000     $  7,955,000     $ 2,094,000
                                                ============     ============     ===========
</TABLE>
 
                                       F-9
<PAGE>   52
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
     These amounts are shown in the accompanying balance sheets under the
following captions:
 
<TABLE>
<CAPTION>
                                                          DECEMBER 31,
                                                   --------------------------      JUNE 30,
                                                      1995           1996            1997
                                                   ----------     -----------     -----------
                                                                                  (UNAUDITED)
    <S>                                            <C>            <C>             <C>
    Costs and estimated earnings in excess of
      billings on uncompleted contracts..........  $1,254,000     $ 8,971,000     $ 8,812,000
    Costs and estimated earnings in excess of
      billings on completed contracts............     200,000         132,000         133,000
                                                   ----------     -----------     -----------
         Costs and estimated earnings in excess
           of billings...........................   1,454,000       9,103,000       8,945,000
                                                   ----------     -----------     -----------
    Billings in excess of costs and estimated
      earnings on uncompleted contracts..........    (722,000)     (1,052,000)     (6,709,000)
    Billings in excess of costs and estimated
      earnings on completed contracts............     (38,000)        (96,000)       (142,000)
                                                   ----------     -----------     -----------
      Billings in excess of costs and estimated
         earnings................................    (760,000)     (1,148,000)     (6,851,000)
                                                   ----------     -----------     -----------
                                                   $  694,000     $ 7,955,000     $ 2,094,000
                                                   ==========     ===========     ===========
</TABLE>
 
 4. PROPERTY AND EQUIPMENT, NET
 
     Property and equipment, net consists of:
 
<TABLE>
<CAPTION>
                                                                       DECEMBER 31,
                                                                ---------------------------
                                                                   1995            1996
                                                                -----------     -----------
    <S>                                                         <C>             <C>
    Leasehold improvements....................................  $ 7,241,000     $ 7,581,000
    Machinery and equipment...................................    2,492,000       3,536,000
    Trucks and automobiles....................................      164,000         107,000
    Office equipment..........................................      469,000         222,000
    Construction in progress..................................      261,000         567,000
                                                                -----------     -----------
                                                                 10,627,000      12,013,000
    Less accumulated depreciation and amortization............   (3,469,000)     (3,460,000)
                                                                -----------     -----------
                                                                $ 7,158,000     $ 8,553,000
                                                                ===========     ===========
</TABLE>
 
 5. NOTE PAYABLE -- REVOLVING CREDIT AGREEMENT
 
     In 1995 the Company entered into a new revolving loan commitment that will
expire in September 1998. The Company is entitled to borrow, from time to time,
up to $10,000,000 with actual borrowings limited to specific percentages of
eligible contracts receivable, equipment and inventories. On December 31, 1996,
borrowings were limited to $8,136,000 and actual outstanding borrowings were
$5,944,000. The interest rate is calculated at the prime lending rate (8.25% at
December 31, 1996) plus two percent (2%) per annum. The loan is secured by
substantially all of the Company's assets.
 
     In addition, the Company has one standby letter of credit with the bank for
$2,036,000 on which no amounts were outstanding as of December 31, 1996.
 
                                      F-10
<PAGE>   53
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
 6. LONG-TERM DEBT
 
     Long-term debt consists of:
 
<TABLE>
<CAPTION>
                                                                        DECEMBER 31,
                                                                  -------------------------
                                                                     1995           1996
                                                                  ----------     ----------
    <S>                                                           <C>            <C>
    Industrial development bonds................................  $2,000,000     $2,000,000
    Less current portion of long-term debt......................          --       (100,000)
                                                                  ----------     ----------
                                                                  $2,000,000     $1,900,000
                                                                  ==========     ==========
</TABLE>
 
     In June 1990, the Industrial Development Authority of the County of San
Joaquin, California issued $4,200,000 of Industrial Development Bonds. The net
proceeds of approximately $4,000,000 were used to fund the construction of a
manufacturing facility on leased property located in Lathrop, California. The
Company fully utilized the bonds at December 31, 1991. The Company has executed
financing statements covering the plant and equipment financed, as security for
repayment of the bonds. The bonds are secured by a $2 million letter of credit,
and bear interest at an initial rate of 6.75% and fluctuate weekly. The interest
rate was 3.75% at December 31, 1996. Repayment of the bonds will be $100,000 per
year through 2015, with the remaining balance paid off in 2016.
 
     Annual maturities of long-term debt outstanding at December 31, 1996 are as
follows:
 
<TABLE>
        <S>                                                                <C>
        Year ending December 31:
          1997...........................................................  $  100,000
          1998...........................................................     100,000
          1999...........................................................     100,000
          2000...........................................................     100,000
          2001...........................................................     100,000
          Thereafter.....................................................   1,500,000
                                                                           ----------
                                                                           $2,000,000
                                                                           ==========
</TABLE>
 
7. INCOME TAXES
 
     The components of the 1994, 1995 and 1996 provision for Federal and state
income taxes are summarized below:
 
<TABLE>
<CAPTION>
                                                                         SIX MONTHS ENDED JUNE
                                         YEAR ENDED DECEMBER 31,                  30,
                                     -------------------------------     ----------------------
                                      1994       1995         1996        1996          1997
                                     ------     -------     --------     -------     ----------
                                                                              (UNAUDITED)
    <S>                              <C>        <C>         <C>          <C>         <C>
    Current:
      Federal......................  $   --     $14,000     $ 91,000     $ 8,000     $2,600,000
      State........................   4,000       5,000      117,000      12,000        756,000
                                     ------     -------     --------     -------     ----------
 
    Deferred:
      Federal......................      --          --           --          --             --
      State........................      --          --           --          --             --
                                     ------     -------     --------     -------     ----------
                                     $4,000     $19,000     $208,000     $20,000     $3,356,000
                                     ======     =======     ========     =======     ==========
</TABLE>
 
                                      F-11
<PAGE>   54
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
     Income tax expense attributable to income from operations differed from the
amounts computed by applying the U.S. Federal income tax rate to pretax income
from operations as a result of the following:
 
<TABLE>
<CAPTION>
                                                                                     SIX MONTHS
                                                                                        ENDED
                                                    YEAR ENDED DECEMBER 31,           JUNE 30,
                                                  ---------------------------      ---------------
                                                  1994       1995       1996       1996       1997
                                                  -----      -----      -----      -----      ----
                                                                                     (UNAUDITED)
<S>                                               <C>        <C>        <C>        <C>        <C>
Taxes, U.S. statutory rates.....................   34.0%      34.0%      34.0%      34.0%     34.0%
State taxes, less Federal benefit...............     --         --         --         --       5.8
Utilization of income tax benefit relating to
  loss carryover................................  (34.0)     (34.0)     (34.0)     (34.0)     (7.2)
Other...........................................    0.7        1.9        4.6        2.2       6.7
                                                  -----      -----      -----      -----      ----
          Total taxes on income.................    0.7%       1.9%       4.6%       2.2%     39.3%
                                                  =====      =====      =====      =====      ====
</TABLE>
 
     Deferred tax liabilities, which amounted to approximately $68,000 and
$270,000 at December 31, 1995 and 1996, respectively, primarily result from
temporary differences between financial and tax accounting treatment of revenue
recognition on contracts and depreciation. Deferred tax assets, which amounted
to approximately $2,819,000 and $1,429,000 at December 31, 1995 and 1996,
respectively, were mainly comprised of net operating loss carryforwards and
accrued liabilities. The Company's net operating loss carryforward at December
31, 1996 amounted to approximately $615,000, and expires in 2008 and 2009. For
the years ended December 31, 1995 to 1996 the Company reduced the net deferred
tax asset to zero by a valuation allowance. The valuation allowance for the net
deferred tax assets as of December 31, 1995 was $2,751,000. The net change for
the year ended December 31, 1996 was a decrease of $1,592,000, resulting in a
remaining valuation allowance of $1,159,000.
 
 8. TRANSACTIONS WITH RELATED PARTIES
 
SALES
 
     The Company sells modular classrooms to certain companies and partnerships,
the shareholders and partners of which are either officers, shareholders or key
employees of the Company. The buildings are then leased to various school
districts by the related companies and partnerships.
 
     The table below summarizes the classroom sales to related parties:
 
<TABLE>
<CAPTION>
                                                                                SIX MONTHS ENDED
                                          YEAR ENDED DECEMBER 31,                   JUNE 30,
                                   --------------------------------------     ---------------------
                                      1994          1995          1996          1996         1997
                                   ----------     --------     ----------     --------     --------
                                                                                   (UNAUDITED)
<S>                                <C>            <C>          <C>            <C>          <C>
Sales............................  $1,009,000     $600,000     $1,453,000     $269,000     $745,000
Cost of goods sold...............     870,000      531,000      1,239,000      236,000      655,000
Gross profit percentage..........        13.8%        11.5%          14.7%        12.3%        12.1%
                                   ==========     =========    ==========     =========    =========
</TABLE>
 
     The related party purchases modular relocatable classrooms from the
Company, upon standard terms and at standard wholesale prices.
 
                                      F-12
<PAGE>   55
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
     Due from affiliates includes a portion of unpaid invoices as a result of
the above transactions. As of December 31, 1995 and 1996 these amounts totaled
$376,000 and $432,000, respectively. Additional amounts arising from these
transactions are included in the following captions:
 
<TABLE>
<CAPTION>
                                                                DECEMBER 31,
                                                             -------------------   JUNE 30,
                                                               1995       1996       1997
                                                             --------   --------   --------
    <S>                                                      <C>        <C>        <C>
    Costs and estimated earnings in excess of billings on
      uncompleted contracts................................  $     --   $418,000   $397,000
    Billings in excess of costs and estimated earnings on
      uncompleted contracts................................   (30,000)   (13,000)   (47,000)
                                                             ========   ========   ========
</TABLE>
 
NOTES RECEIVABLE
 
     At December 31, 1995, the Company had two notes receivable from a related
party partnership aggregating $483,000. The partnership is composed of officers
and shareholders of the Company. One note was paid in full during 1996 and the
other note, in the amount of $45,000, which bears interest at 10% and is payable
upon demand, remained outstanding at December 31, 1996.
 
     At December 31, 1995 the Company also had demand notes receivable of
$132,000 and $105,000 due from related party partnerships. These notes were paid
in full during 1996.
 
     Unpaid interest related to the above notes totaled $390,000 at December 31,
1995 and $322,000 at December 31, 1996 and are included in due from affiliates.
The Company is negotiating payment terms on the accrued interest and anticipates
full payment during 1997.
 
OPERATING LEASES
 
     The Company leases various land at its manufacturing facilities. The
present manufacturing facility leases are with the Company's primary shareholder
and partnerships composed of officers and shareholders. All related party leases
require monthly payments which aggregate $67,000. In connection with the lease
at the Lathrop facility, the Company made a $83,000 security deposit during
1990.
 
     In 1994, due to declines in real estate values the Company's primary
shareholder and partnerships reduced the monthly lease rates for the
manufacturing facilities to an aggregate of $36,000. The reduced rents will
continue for as long as real estate values remain depressed.
 
     Future minimum lease payments under these leases are discussed in Note 14.
Included in cost of sales is $418,000, $435,000 and $447,000 in rent expense
paid to related parties for the years ended December 31, 1994, 1995 and 1996,
respectively.
 
 9. 401(K) PLAN
 
     The Company has a tax deferred savings plan under Section 401(k) of the
Internal Revenue Code. Eligible employees can contribute up to 12% of gross
annual earnings. Company contributions, made on a 50% matching basis, are
determined annually. The Company's contributions were $41,000, $37,000 and
$53,000 in 1994, 1995 and 1996, respectively.
 
10. STOCK OPTIONS
 
     In 1989, the Company's shareholders approved a stock option plan (the 1989
Plan). The 1989 Plan provides for the grant of both incentive and non-qualified
options to purchase up to 400,000 shares of the
 
                                      F-13
<PAGE>   56
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
Company's Common Stock. The incentive stock options can be granted only to
employees, including officers of the Company, while non-qualified stock options
can be granted to employees, non-employee officers and directors, consultants,
vendors, customers and others expected to provide significant services to the
Company.
 
     The exercise price of the stock options cannot be less than the fair market
at the date of the grant (110% if granted to an employee who owns 10% or more of
the common stock).
 
     Stock options outstanding under this 1989 Plan are summarized as follows:
 
<TABLE>
<CAPTION>
                                                                         WEIGHTED-AVERAGE
                                                             SHARES       EXERCISE PRICE
                                                            --------     ----------------
        <S>                                                 <C>          <C>
        December 31, 1993.................................   400,000          $ 1.91
          Granted.........................................    75,000            1.50
          Terminated......................................   (75,000)           1.45
          Exercised.......................................        --              --
                                                            --------          ------
        December 31, 1994.................................   400,000            1.92
          Granted.........................................    45,000           2.125
          Terminated......................................   (45,000)           3.00
          Exercised.......................................        --              --
                                                            --------          ------
        December 31, 1995.................................   400,000            1.82
          Granted.........................................        --              --
          Terminated......................................        --              --
          Exercised.......................................  (134,500)           1.62
                                                            --------          ------
        December 31, 1996.................................   265,500            1.92
          Granted.........................................        --              --
          Terminated......................................        --              --
          Exercised (unaudited)...........................   (13,650)           2.78
                                                            --------          ------
        June 30, 1997 (unaudited).........................   251,850          $ 1.87
                                                            ========          ======
</TABLE>
 
     As of December 31, 1996, 185,900 options are vested and exercisable at
prices ranging from $.625 to $10.00 per share under the 1989 Plan.
 
     As of June 30, 1997, 179,750 options are vested and exercisable at prices
ranging from $.625 to $10.00 per share under the 1989 Plan (unaudited).
 
     In March of 1994, pursuant to a vote of the Board of Directors, a
nonqualified option plan was approved (the March 1994 Plan). The March 1994 Plan
provides for the grant of 200,000 options to purchase shares of the Company's
common stock. The exercise price of the stock options cannot be less than the
fair market at the date of the grant. All of these options were granted during
1994.
 
                                      F-14
<PAGE>   57
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
     Stock options outstanding under the March 1994 Plan, are summarized as
follows:
 
<TABLE>
<CAPTION>
                                                                         WEIGHTED-AVERAGE
                                                             SHARES       EXERCISE PRICE
                                                            --------     ----------------
        <S>                                                 <C>          <C>
        December 31, 1993.................................   180,000          $ 1.19
          Granted.........................................    20,000            1.50
          Terminated......................................        --              --
          Exercised.......................................        --              --
                                                             -------          ------
        December 31, 1994.................................   200,000            1.22
          Granted.........................................        --              --
          Terminated......................................        --              --
          Exercised.......................................        --              --
                                                             -------          ------
        December 31, 1995.................................   200,000            1.22
          Granted.........................................        --              --
          Terminated......................................        --              --
          Exercised.......................................   (20,000)           1.19
                                                             -------          ------
        December 31, 1996.................................   180,000            1.22
          Granted.........................................        --              --
          Terminated......................................        --              --
          Exercised (unaudited)...........................   (14,500)           1.37
                                                             -------          ------
        June 30, 1997 (unaudited).........................   165,500          $ 1.21
                                                             =======          ======
</TABLE>
 
     As of December 31, 1996, 95,000 options are vested and exercisable at
prices ranging from $1.19 to $1.50 per share under the March 1994 Plan.
 
     As of June 30, 1997, 123,000 options are vested and exercisable at prices
ranging from $1.19 to $1.50 per share under the March 1994 Plan (unaudited).
 
     In May of 1994, in conjunction with the offering of preferred stock (note
11), the Board of Directors voted and approved an additional stock option plan
(the May 1994 Plan). The May 1994 Plan provides for the grant of both incentive
and non-qualified options to purchase up to 500,000 shares of the Company's
common stock. The incentive stock options can be granted only to employees,
including officers of the Company, while non-qualified stock options can be
granted to employees, non-employee officers and directors, consultants, vendors,
customers and others expected to provide significant services to the Company.
The exercise price of the stock options cannot be less than the fair market at
the date of the grant (110% if granted to an employee who owns 10% or more of
the common stock).
 
                                      F-15
<PAGE>   58
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
     Stock options outstanding under this May 1994 Plan, are summarized as
follows:
 
<TABLE>
<CAPTION>
                                                                         WEIGHTED-AVERAGE
                                                             SHARES       EXERCISE PRICE
                                                             -------     ----------------
        <S>                                                  <C>         <C>
        December 31, 1994..................................  285,000          $ 1.50
          Granted..........................................   35,000           2.125
          Terminated.......................................  (35,000)           1.50
          Exercised........................................       --              --
                                                             -------          ------
        December 31, 1995..................................  285,000            1.60
          Granted..........................................  205,000            2.59
          Terminated.......................................  (37,500)           1.50
          Exercised........................................  (12,500)           1.50
                                                             -------          ------
        December 31, 1996..................................  440,000            2.06
          Granted..........................................       --              --
          Terminated.......................................       --              --
          Exercised (unaudited)............................   (1,250)           2.13
                                                             -------          ------
        June 30, 1997 (unaudited)..........................  438,750          $ 2.06
                                                             =======          ======
</TABLE>
 
     As of December 31, 1996, 108,750 options are vested and exercisable at
prices ranging from $1.50 to $4.50 per share under the May 1994 Plan.
 
     As of June 30, 1997, 198,750 options are vested and exercisable at prices
ranging from $1.50 to $4.50 per share under the May 1994 Plan (unaudited).
 
     In July 1996, the Company's Board of Directors authorized the grant of
options to purchase up to 500,000 shares of the Company's common stock. The
non-statutory options may be granted to employees, non-employee officers and
directors, consultants, vendors, customers and others expected to provide
significant service to the Company. The exercise price of the stock options
cannot be less than the fair market value at the date of the grant (110% if
granted to an employee who owns 10% or more of the common stock). At December
31, 1996, 110,000 options were granted at an exercise price of $4.50 and of
these, 30,000 options were vested and exercisable. In January 1997, an
additional 215,833 options were granted at an exercise price of $7.88 and in
June 1997, 25,000 options were granted at an exercise price of $12.62. At June
30, 1997, 30,000 options were vested and exercisable at $4.50 per share under
the 1996 Plan (unaudited).
 
     The per share weighted-average fair value of stock options granted during
1995 and 1996 was $1.28 and $1.94, respectively, on the date of grant using the
Black Scholes option-pricing model with the following weighted-average
assumptions; 1995 -- expected dividend yield 0%, risk-free interest rate of
7.80%, volatility factor of 72.66%, and an expected life of four years;
1996 -- expected dividend yield 0%, risk-free interest rate ranging from 6.57%
to 7.80%, volatility factor of 72.66%, and an expected life of four years. The
Company applies APB Opinion No. 25 in accounting for its Plan and, accordingly,
no compensation cost has been recognized for its stock options in the financial
statements. Had the Company determined compensation cost
 
                                      F-16
<PAGE>   59
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
based on the fair value at the grant date for its stock options under SFAS No.
123, the Company's net income would have been reduced to the pro forma amounts
indicated below:
 
<TABLE>
<CAPTION>
                                                                        SIX MONTHS ENDED JUNE
                                           YEAR ENDED DECEMBER 31,               30,
                                           -----------------------     -----------------------
                                             1995          1996          1996          1997
                                           --------     ----------     --------     ----------
                                                                             (UNAUDITED)
    <S>                                    <C>          <C>            <C>          <C>
    Net income:
      As reported........................  $965,000     $4,269,000     $889,000     $5,195,000
      Pro forma..........................   862,000      3,658,000      783,000      4,434,000
                                           ========     ==========     ========     ==========
    Primary earnings per share:
      As reported........................  $   0.13     $     0.49     $   0.10     $     0.55
      Pro forma..........................      0.11           0.42         0.09           0.47
                                           ========     ==========     ========     ==========
    Fully diluted earnings per share:
      As reported........................  $   0.12     $     0.47     $   0.10     $     0.55
      Pro forma..........................      0.11           0.40         0.09           0.47
                                           ========     ==========     ========     ==========
</TABLE>
 
     Pro forma net income reflects only options granted in 1995 and 1996.
Therefore, the full impact of calculating compensation cost for stock options
under SFAS No. 123 is not reflected in the pro forma net income amounts
presented above because compensation cost is reflected over the options' vesting
period of four years and compensation cost for options granted prior to January
1, 1995 is not considered.
 
11. 5% CONVERTIBLE PREFERRED STOCK AND WARRANTS
 
     In May of 1994, in a private transaction without registration under the
Securities Act, the Company sold 2,850,000 shares of Series A 5% Convertible
Preferred Stock. The preferred stock was sold at the price of $1.00 per share
resulting in proceeds before costs and expenses of $2,850,000. All of the Series
A 5% Convertible Preferred Stock was converted into Common Stock during 1996. In
connection with this private placement of the Series A 5% Preferred Stock, the
shareholders were granted warrants to purchase an aggregate of 1,385,000 shares
of common stock at $1.50 (subject to adjustment in certain events), as well as
warrants to purchase an aggregate of 1,375,000 additional shares at $2.00 per
share (subject to adjustments in certain events). All warrants were exercised
during 1996 resulting in the issuance of 2,204,000 shares of common stock and
proceeds to the Company of approximately $1,643,000. Dividends in the amount of
$166,000 and $48,000 were declared for the years ended December 31, 1995 and
1996, respectively.
 
     The Company also had outstanding 375,000 stock warrants at a price of
$1.1875 in connection with a 1994 bank financing agreement. All these warrants
were exercised during 1996.
 
12. MAJOR CUSTOMERS
 
     The Company had sales to one major customer which represented the following
percentage of net sales:
 
<TABLE>
<CAPTION>
                                                              YEAR ENDED DECEMBER 31,
                                                              ------------------------
                                                              1994      1995      1996
                                                              ----      ----      ----
        <S>                                                   <C>       <C>       <C>
        State of California.................................    28%        9%       13%
                                                                ==         =        ==
</TABLE>
 
     Sales to individual California school districts accounted 67.0%, 87.9% and
79.4% of the Company's net sales for 1994, 1995 and 1996, respectively.
 
                                      F-17
<PAGE>   60
 
                                 MODTECH, INC.
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
                         DECEMBER 31, 1994, 1995, 1996
                     AND JUNE 30, 1996 AND 1997 (UNAUDITED)
 
13. SUPPLEMENTAL CASH FLOW DISCLOSURES
 
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
 
<TABLE>
<CAPTION>
                                                                        SIX MONTHS ENDED
                                         YEAR ENDED DECEMBER 31,            JUNE 30,
                                      ------------------------------   -------------------
                                        1994       1995       1996       1996       1997
                                      --------   --------   --------   --------   --------
                                                                           (UNAUDITED)
        <S>                           <C>        <C>        <C>        <C>        <C>
        Cash paid during the year
          for:
          Interest..................  $531,000   $248,000   $421,000   $180,000   $506,000
          Income taxes..............        --         --     24,000         --         --
                                      ========   ========   ========   ========   ========
</TABLE>
 
SUPPLEMENTAL DISCLOSURES OF NONCASH FINANCING ACTIVITIES:
 
     During 1995, $274,000 of notes receivable from officer shareholders was
repaid by delivery of 155,988 shares of common stock at market value.
 
     During 1996, 2,850,000 shares of Series A 5% convertible Preferred Stock
were converted into 2,850,000 shares of common stock, in accordance with the
private placement (note 11).
 
14. COMMITMENTS AND CONTINGENCIES
 
LAND LEASES
 
     The Company has entered into agreements to lease land at its manufacturing
facilities in Perris and Lathrop, California. Minimum lease payments under these
noncancelable operating leases for the next five years and thereafter are as
follows:
 
<TABLE>
                <S>                                                <C>
                Year ending December 31:
                  1997...........................................  $  496,000
                  1998...........................................     489,000
                  1999...........................................     480,000
                  2000...........................................     435,000
                  2001...........................................     435,000
                  Thereafter.....................................   6,325,000
                                                                   ----------
                                                                   $8,660,000
                                                                   ==========
</TABLE>
 
     Of the $8,660,000 in future rental payments, substantially all is payable
to related parties (note 8). Rent expense for the years ended December 31, 1994,
1995 and 1996 was $418,000, $435,000 and $447,000, respectively.
 
WARRANTY
 
     The Company provides a one year warranty relating to the workmanship on
their modular units. To date, warranty costs incurred on completed contracts
have been immaterial.
 
PENDING CLAIMS AND LITIGATION
 
     In the normal course of business, the Company has been named in several
claims and lawsuits arising out of the failure to pay subcontractors or for
alleged breach of assigned security. In the opinion of management, the outcome
of the claims will not have a material effect on the Company's financial
position or results of operations.
 
                                      F-18
<PAGE>   61





                                  [PHOTOGRAPH]
<PAGE>   62
 
======================================================
 
  NO DEALER, SALES REPRESENTATIVE, 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, ANY SELLING
SHAREHOLDER OR THE UNDERWRITERS. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO
SELL, OR A SOLICITATION OF AN OFFER TO BUY, ANY SECURITIES OTHER THAN THE
SECURITIES TO WHICH IT RELATES OR AN OFFER TO SELL, OR A SOLICITATION OF AN
OFFER TO BUY, TO ANY PERSON 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 NOR ANY SALE MADE HEREUNDER CREATE ANY IMPLICATION THAT
INFORMATION CONTAINED IN THIS PROSPECTUS IS CORRECT AS OF ANY TIME SUBSEQUENT TO
DATE OF THIS PROSPECTUS.
 
                            ------------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                        PAGE
                                        ----
<S>                                     <C>
Prospectus Summary.....................    3
Risk Factors...........................    7
Use of Proceeds........................   11
Market Information and Related
  Matters..............................   12
Dividend Policy........................   12
Capitalization.........................   13
Selected Financial Data................   14
Management's Discussion and Analysis of
  Results of Operations and Financial
  Condition............................   15
Business...............................   21
Management.............................   32
Principal and Selling Shareholders.....   37
Description of Capital Stock...........   39
Underwriting...........................   41
Legal Matters..........................   42
Experts................................   42
Available Information..................   42
Index to Financial Statements..........  F-1
</TABLE>
    
 
======================================================
======================================================
 
   
                                1,750,000 SHARES
    
 
                                  MODTECH LOGO
 
                                  COMMON STOCK
                              --------------------
                                   PROSPECTUS
                              --------------------
 
                            BEAR, STEARNS & CO. INC.
 
                                CRUTTENDEN ROTH
                                  INCORPORATED
 
                             L.H. FRIEND, WEINRESS,
                            FRANKSON & PRESSON, INC.
   
                                NOVEMBER 4, 1997
    
 
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