MINERALS TECHNOLOGIES INC
10-K, 1999-03-18
INDUSTRIAL INORGANIC CHEMICALS
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                 SECURITIES AND EXCHANGE COMMISSION

                        WASHINGTON, D.C. 20549

                                                                            
                              FORM 10-K


                    
/X/          ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) 
               OF THE SECURITIES EXCHANGE ACT OF 1934
                                       
              For the fiscal year ended December 31, 1998

                     Commission file number 1-3295

                       MINERALS TECHNOLOGIES INC.
            (Exact name of registrant as specified in its charter)
DELAWARE                                                                    
                                                       25-1190717
(State or other jurisdiction of                   (I.R.S. Employer
incorporation or organization)                                             
                                                  Identification Number)

The Chrysler Building
405 Lexington Avenue
New York, New York                                10174-1901
(address of principal executive office)           (Zip Code)

                              (212) 878-1800
             (Registrant's telephone number including area code)
                                       
        SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:

- ---------------------------------------------------------------------------
Title of each class                           Name of each exchange
                                              on which registered
- ---------------------------------------------------------------------------
Common Stock, $.10 par value                  New York Stock Exchange
- ---------------------------------------------------------------------------
       Securities registered pursuant to Section 12(g) of the Act:
                                   None
                                  ------

     Indicate by check mark whether the Registrant (1) has filed all
reports required to be filed by Section 13 or 15(d) of the Securities
Exchange Act of 1934 during the preceding 12 months (or for such shorter
period that the Registrant was required to file such reports), and (2) has
been subject to such filing requirements for the past 90 days.
                      Yes  X            No 
                          ----         ----

     Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K is not contained herein, and will not be
contained, to the best of the Registrant's knowledge, in definitive proxy
or information statements incorporated by reference in Part III of this
Form 10-K or any amendment to this Form 10-K. X 
                                             ---- 
      
     The aggregate market value of the voting stock held by non-affiliates
of the Registrant, based upon the closing price at which the stock was sold
as of February 1, 1999 was approximately $496.5 million.  Shares of
common stock held by each officer and director and by each person who owns
5% or more of the outstanding common stock have been excluded in that such
persons may be deemed to be affiliates.  This determination of affiliate
status is not necessarily a conclusive determination for other purposes.
                              
     As of March 3, 1999, the Registrant had outstanding 21,627,262 
shares of common stock, all of one class.

                   DOCUMENTS INCORPORATED BY REFERENCE

Proxy Statement dated April 2, 1999                                         
                                                       Part III

<PAGE>

                  MINERALS TECHNOLOGIES INC.
                 1998 FORM 10-K ANNUAL REPORT

                      TABLE OF CONTENTS

                                                            PAGE
                                                            ----
                           PART I

Item 1.   Business                                             1

Item 2.   Properties                                           9

Item 3.   Legal Proceedings                                   11

                                                     
Item 4.   Submission of Matters to a Vote of         
          Security Holders                                    11

Executive Officers of the Registrant                          12


                              PART II

Item 5.   Market for the Registrant's Common Equity  
          and Related Stockholder Matters                     13

Item 6.   Selected Financial Data                             14

Item 7.   Management's Discussion and Analysis of  
          Financial Condition and Results of Operations       15

Item 7A.  Quantitative and Qualitative Disclosures 
          About Market Risk                                   21

Item 8.   Financial Statements and Supplementary Data         21

Item 9.   Changes in and Disagreements with Accountants 
          on Accounting and Financial Disclosure              21
 
                              PART III

Item 10.  Directors and Executive Officers of the Registrant  21

Item 11.  Executive Compensation                              21

Item 12.  Security Ownership of Certain Beneficial 
          Owners and Management                               21

Item 13.  Certain Relationships and Related Transactions      22


                              PART IV

Item 14.  Exhibits, Financial Statement Schedule and 
          Reports on Form 8-K                                 22

- -----------------------------------------------------
Signatures                                                    25


<PAGE>
                              PART I

ITEM 1.   BUSINESS

     Minerals Technologies Inc. (the "Company") is a resource- and
technology-based company that develops, produces and markets on a 
worldwide basis a broad range of specialty mineral, mineral-based and
synthetic mineral products. The Company has two operating segments:
Specialty Minerals and Refractories.  The Specialty Minerals segment
produces and sells precipitated calcium carbonate ("PCC") and lime, and
mines, processes and sells the natural mineral products limestone and talc. 
This segment's products are used principally in the paper, building
materials, paints and coatings, glass, ceramic, polymers, food and
pharmaceutical industries.  The Refractories segment produces and markets
monolithic and shaped refractory materials and services used primarily by
the steel, cement and glass industries. The Company emphasizes research and
development. The level of the Company's research and development spending
as well as its history of developing and introducing technologically
advanced new products has enabled the Company to anticipate and satisfy
changing customer requirements and create new market opportunities through
new product development and product application innovations. 

SPECIALTY MINERALS SEGMENT

PCC PRODUCTS AND MARKETS

     PCC PRODUCTS

     Paper can be produced under either acid or alkaline conditions.
Historically, in North America, paper was primarily produced using acid
technologies.  In the mid-1980's, North American producers of uncoated
wood-free paper encountered significant increases in the cost of wood fiber
and other materials, such as titanium dioxide, which are necessary in
greater quantities in the acid process. In response, these paper producers
sought to convert their paper production to lower-cost alkaline-based
technologies, which permit mineral fillers to be substituted for more
expensive wood fiber and pigments used to increase brightness, resulting in
significant cost savings. As a result of these conditions, the Company
believed that a significant opportunity existed to provide paper producers
with a high performance filler product that could facilitate the transition
to the alkaline papermaking process. The Company's four-year development
effort culminated in the construction of the first commercial satellite PCC
plant at the Wisconsin Rapids paper mill of Consolidated Papers, Inc. in
1986. The Company believes the competitive advantages offered by the
improved economics and superior optical characteristics of the paper
produced using the PCC products manufactured by the Company's satellite PCC
plants resulted in the rapid growth in the number of the Company's
satellite PCC plants among uncoated wood-free paper producers. The Company
has also built satellite PCC plants that replace ground calcium carbonate. 
In addition, the Company has constructed satellites for coating PCC, and
more recently, satellites for the use of its patented acid-tolerant PCC
technology.  This technology provides higher performance qualities to
manufacturers of groundwood paper like newsprint, magazine and catalogue
papers.  The following table shows the number of satellite PCC plants
operated by the Company at the end of the periods indicated. For
information with respect to the locations of the Company's satellite PCC
plants at December 31, 1998, see Item 2, "Properties" below. 

                           SATELLITE PCC PLANTS
                            AT END OF QUARTER
                           --------------------

CALENDAR YEAR            FIRST SECOND THIRD  FOURTH
- -------------            ----- ------ -----  ------     
 1994                     36     36     36     36      
 1995                     37     37     38     38      
 1996                     41     42     43     44
 1997                     45     46     48     49
 1998                     50     53     53     53
         
     In 1998, the Company commenced operations at four new satellite PCC
plants in three different countries.  These satellite PCC plants are
located in France, Germany and two in the United States.  

                              1
<PAGE>

     During 1998, the Company signed agreements to construct two new
satellite plants, both of which are now under construction.  The satellite
PCC plants under construction are located in China and in the United
States.  These PCC plants are scheduled to commence operations in the first
half of 1999.

     In addition, on April 30, 1998, the Company acquired a precipitated
calcium carbonate manufacturing facility in the United Kingdom which allows
the Company to establish a base for its specialty PCC business in Europe.

     The Company staffs, operates and maintains all of its satellite PCC
plants and owns the related technology used at its satellite PCC plants.
The Company and its paper mill customers enter into long-term agreements,
generally ten years in length, pursuant to which the Company supplies
substantially all of a customer's precipitated calcium carbonate filler
requirements. The Company is generally permitted to sell to third parties
PCC produced at a satellite plant in excess of the host paper mill's
requirements. The Company's satellite PCC plants and customers are listed
in Item 2, "Properties."

     The Company currently manufactures several customized PCC product
forms through proprietary processes at its satellite PCC plants, each
designed to provide optimum brightness, opacity, bulking and/or paper
strength. While focusing on expanding sales at its existing satellite PCC
plants, the Company's research and development and technical service staffs
have pioneered a number of new technologies. These include acid-tolerant
PCC, which allows PCC to be introduced to the large wood-containing segment
of the printing and writing papers market, and PCC crystal morphologies for
coating paper.  The Company expects that research and development in
coating technology will open up a larger market for PCC that will build
slowly as paper companies begin to include PCC in their proprietary coating
formulations.

     The Company also produces a full range of slurry and dry PCC products
sold on a merchant basis. In the paper industry, the Company's merchant PCC
is used as a coating pigment and as a filler in the production of coated
and uncoated wood-free printing and writing papers. The Company sells
surface-treated and untreated grades of PCC to the polymers industry for
use in rigid polyvinyl chloride products (pipe and profiles), thermoset
polyesters (automotive body parts), sealants (automotive and construction
applications), adhesives, printing inks and coatings. The Company's PCC is
used by the food and pharmaceutical industries as a source of bio-available
calcium in tablets and foodstuffs, as a buffering agent in tablets, and as
a mild abrasive in toothpaste. The Company also sells PCC on a merchant
basis to the paints and coatings industry. 

     The Company's PCC product line net sales were $349.5 million, $299.9
million, $263.1 million for the years ended December 31, 1998, 1997 and
1996, respectively.  See Item 7, "Management's Discussion and Analysis of
Financial Condition and Results of Operations."


     KEY MARKETS

     The principal market for the Company's satellite PCC products is the
paper industry. The Company also produces PCC on a merchant basis for sale
to companies in the polymers, food and pharmaceutical and paints and
coatings industries. 

     Sales of PCC to the paper industry have accounted for a steadily
increasing percentage of the Company's total sales in the past five years,
a trend the Company expects to continue. The Company's sales of PCC have
been and are expected to continue to be made to the printing and writing
papers segment of the paper industry. The Company's products are currently
used primarily by paper mills producing uncoated wood-free paper. 


     NORTH AMERICAN WOOD-FREE PRINTING AND WRITING PAPERS. In the
mid-1980's, North American producers of uncoated wood-free paper
encountered significant increases in the costs of wood fiber and other
materials.  In response, these paper producers sought to convert their
paper production to lower-cost alkaline-based technologies, thereby
resulting in significant cost savings. Ground chalk has historically been
used by European alkaline-based paper producers as a low-cost substitute
for wood fiber. In North America, however, the use of ground chalk is not
practical as there is no naturally occurring chalk. 

     PCC must compete with other fillers, such as ground limestone and
clay.  PCC costs more to produce than ground limestone or clay since the
production process is inherently more complex. Limestone is mined, crushed
and ground; clay is mined, ground and perhaps calcined. PCC is manufactured
via a chemical process which takes lime (which itself is produced by
calcining a mined product, limestone), dissolves it, combines it with
carbon dioxide and separates the final product. Drying and transportation
can add over $100 per ton to the product cost.  If shipped wet, additional
freight costs are incurred.  In many cases this added cost makes PCC from
merchant plants uncompetitive with other fillers.

                              2
<PAGE>
 

     In response to these conditions and as a result of a concentrated
research and development effort, the Company developed the satellite PCC
plant concept. The Company's satellite PCC plants have facilitated the
conversion of a substantial percentage of the North American uncoated
wood-free printing and writing paper producers to alkaline papermaking. The
Company estimates that during 1998, more than 80% of North American
wood-free paper was produced employing alkaline technology. 

     Presently, the Company owns and operates 35 commercial satellite PCC
plants located at paper mills that produce wood-free printing and writing
papers in North America.  Based upon its experience, the Company
anticipates that the aggregate volume of PCC used by these 35 paper mills
will increase.  The Company also estimates that a few additional North
American paper mills producing wood-free paper are both suitable for
conversion to the more economical and, in the Company's view, more
ecologically sound, alkaline method and large enough to support a satellite
PCC plant.

     The Company is also placing increased emphasis on the use of PCC to
coat paper.  PCC increases gloss and printability of the sheet while
decreasing paper's cost per ton.  The coating market is large and the
Company believes it will continue to grow at a higher average growth rate
than the uncoated market, and therefore provides a substantial market
opportunity for the Company.  PCC coating products are produced at
approximately ten satellite PCC plants.

     WORLDWIDE WOOD-CONTAINING PRINTING AND WRITING PAPERS. To date, the
Company's PCC products have primarily  been used in wood-free alkaline
papermaking processes.  The groundwood paper market, which the Company is
beginning to penetrate, represents nearly half of worldwide paper
production.  The wood-containing segments of the paper industry still
generally employ acid papermaking technology.  The conversion to alkaline
technology by these segments has been hampered by the phenomenon of
alkaline darkening, the tendency of wood-containing papers to darken in an
alkaline environment. In an attempt to introduce PCC to the wood-containing
segments of the paper industry, the Company has developed and patented a
process for the manufacture of an acid-tolerant form of PCC (AT-TM-PCC) 
that provides high-brightness, high-quality groundwood paper produced
in an acid environment.  The Company now supplies PCC to six groundwood
paper mills, pursuant to long-term contracts. 

     The Company believes PCC filler levels for uncoated wood-containing
paper generally will be less than those for uncoated wood-free paper. There
can be no assurance as to the number of producers of wood-containing paper
that will contract with the Company to purchase AT-TM- PCC.

     INTERNATIONAL WOOD-FREE PRINTING AND WRITING PAPERS.  The Company
estimates the production of uncoated wood-free printing and writing papers
outside of North America that can be served by its satellite PCC operations
is approximately the same size (measured in tons of paper produced) as the
North American uncoated wood-free paper market currently served by the
Company. A number of factors have influenced the acceptance of the
Company's satellite PCC technology in foreign markets. Although European
wood-free paper producers predominantly use alkaline papermaking processes,
PCC, although growing in use,  is not the prevalent filler in this market.
Ground limestone is readily available in Europe and commonly used as a
low-cost filler product in alkaline systems. In addition, supplies of lime
suitable for the manufacture of PCC generally are more expensive than such
lime in North America. However, the Company believes that the superior
brightness and opacity characteristics offered by its PCC products should
allow it to compete with suppliers of ground limestone and other filler
products in this market.   In Latin America and Asia supplies of lime
suitable for PCC production are generally readily available.

PROCESSED MINERAL PRODUCTS AND MARKETS

     The Company mines and processes natural mineral products, limestone
and talc, and manufactures lime, a mineral-based product. 
   
     Limestone and talc are mined, crushed, screened and beneficiated and,
on occasion, subjected to surface chemical modification.

     Lime, a mineral-based product, is used as a raw material for the
manufacture of PCC at the Company's Adams, Massachusetts facility, and sold
commercially to the steel and chemical industries.

     In April 1998, the Company divested its Midwest limestone business in
Port Inland, Michigan.  Net sales of the Midwest limestone business in 1997
were $20.8 million.  Net sales from this facility in 1998, prior to the
divestiture, were $1.6 million.  This was the Company's only business unit
competing for sales of limestone aggregate, a commodity business. 
References to ongoing operations exclude the results from this facility.

                              3
<PAGE>
   
     Talc is mined, beneficiated and processed at the Company's Barretts
site, located near Dillon, Montana, and is sold worldwide in finely ground
form for paints and coatings, ceramics and polymers applications. Because
of the exceptional chemical purity of the Barretts ore, virtually all of
the automotive catalytic converter ceramic substrates manufactured in the
United States, Japan and Western Europe utilize the Company's Barretts
talc.  

     The Company's net sales of processed mineral products from ongoing
operations were $77.9 million, $82.4 million and $79.1 million for the
years ended December 31, 1998, 1997 and 1996, respectively. See Item 7,
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."

     The Company's natural mineral products are supported by the Company's
limestone reserves, which the Company believes are strategically located in
the western and eastern parts of the United States, and talc reserves,
which the Company believes are of outstanding quality. The Company
estimates these reserves, at current usage levels, to be from 40 to over 70
years at its limestone production facilities and in excess of 40 years at
its talc production facilities.

REFRACTORIES SEGMENT

REFRACTORY PRODUCTS AND MARKETS

     REFRACTORY PRODUCTS.

     The Company offers a broad range of monolithic refractory products as
well as pre-cast monolithic refractory shapes. Product sales are usually
combined with Company-supplied proprietary applications equipment and
on-site technical services support. The Company's proprietary applications
equipment is used to apply refractory materials to the walls of steel-
making furnaces and other high temperature vessels to maintain and extend
their lives. Robotic-type shooters, including the Company's proprietary
SEQUAD-RT- sprayer, allow for remote-controlled applications in steel-
making furnaces, as well as in steel ladles and blast furnaces. Since the
steel-making industry is characterized by intense price competition, which
results in a continuing emphasis by steel mills on increased productivity,
the SEQUAD-RT- sprayer and the related technologically advanced blast
furnace maintenance materials developed in the Company's research
laboratories have been well accepted by the Company's customers. These
products allow steel makers to improve their performance through, among
other things, the application of monolithic refractories to furnace linings
while the furnace is at operating temperature, thereby eliminating the need
for furnace cool-down periods and steel-production interruption. This also
results in a lower overall refractory cost to steel makers per ton of steel
produced. The Company's experienced technical service staff and advanced
applications equipment provide greater assurance that the desired
productivity objectives of customers are achieved. In addition, laser
measurement of refractory wear is conducted by the Company's technicians in
certain plants. The Company believes that these services, together with its
refractory product offerings, provide the Company with a strategic
marketing advantage. 

     The patented KILNTEQ-RT- refractory technology system is a new concept
for lining the interior of lime and cement kilns.  The KILNTEQ-RT- system
calls for lining the huge, tube-like kilns with refractory material in a
polygonal shape.  This shape, rather than the circular linings now
generally used, is believed to increase raw material throughput and to
decrease energy use.  

     The Company's refractory products are sold in the following three
product groups:

     STEEL FURNACE REFRACTORIES.  The Company sells gunnable monolithic
refractory products to users of basic oxygen furnaces and electric furnaces
for application on furnace walls to prolong the life of furnace linings. 

     SPECIALTY PRODUCTS FOR IRON AND STEEL. The Company sells monolithic
refractory materials and pre-cast refractory shapes for iron and steel
ladles, vacuum degassers, continuous casting tundishes, blast furnaces and
reheating furnaces. The Company is one of the few monolithic refractory
companies offering a full line of materials to satisfy all continuous
casting refractory applications. This full line consists of gunnable,
sprayable, trowellable and vibratable materials as well as refractory
shapes and permanent linings. 

     The Company uses proprietary processes to produce a number of products
that are technologically enhanced. These include calcium metal,
metallurgical wire and a number of metal treatment specialties. The Company
manufactures calcium metal at its Canaan, Connecticut facility and
purchases calcium in international markets.  Calcium metal is used in the
manufacture of batteries and magnets. The Company sells metallurgical wires
and fluxes for use in the production of steel. The Company's metallurgical
wires are injected into molten steel to reduce imperfections. The steel
produced is used for high-pressure pipeline and other premium-grade steel
applications. The Company's fluxes are mineral products used to help purify
steel.

                              4
<PAGE>

     NON-STEEL REFRACTORY PRODUCTS. This product line encompasses
refractory shapes and linings and pyrolytic graphite products that are sold
to the glass, cement, aluminum, petrochemical and other non-steel
industries. 

     The Company's refractory net sales were $180.2 million, $199.2 million
and $196.7 million for the years ended December 31, 1998, 1997 and 1996,
respectively. See Item 7, "Management's Discussion and Analysis of
Financial Condition and Results of Operations."


     KEY MARKETS
 
     The principal market for the Company's refractory products is the
steel industry.  Raw steel production on a worldwide basis has shown only
modest growth in the past ten years.  However, management believes that
certain trends in the steel-making industry will continue to provide growth
opportunities for the Company. These trends include the development of
improved manufacturing processes such as continuous casting, the need of
steel producers for increased productivity and higher grade refractories,
as well as a modest shift toward electric steel making. 

     The use of the continuous casting method, measured in tons of steel
cast on a worldwide basis, has more than doubled in the past ten years. The
need for high quality refractory products for this process has generated
new market opportunities for the Company's refractory products. Product
offerings for continuous casting include advanced maintenance coatings and
original linings for tundishes and robotic applications equipment.  The
Company believes that the trend toward electric steel-making mini-mills and
away from integrated steel mills has facilitated the acceptance of new
refractory products and technologies. Mini-mills require a broad line of
refractory products and certain metallurgical products that are also
produced by the Company. 

MARKETING AND SALES

     The Company principally relies on its worldwide direct sales force to
market its products. The direct sales force is augmented by worldwide
technical service teams, which are familiar with the industries to which
the Company markets its products, and several regional distributors. The
Company's sales force works closely with the Company's technical service
staff to solve technical and other issues faced by the Company's customers.
The Company's technical service staff assists North American paper
producers in their conversion to alkaline papermaking and provides post-
conversion assistance to customers. In addition, the Company's technical
service personnel advise with respect to the use of monolithic refractory
materials and, in many cases, apply the refractory materials to the
customers' furnaces and other vessels pursuant to service agreements.
Continued use of skilled technical service teams is an important component
of the Company's business strategy. 

     The Company works closely with its customers to ensure that the
customers' requirements are satisfied and often trains and supports
customer personnel in the use of the Company's products.  The Company
conducts domestic marketing and sales from its headquarters in New York and
from regional sales offices in the eastern and western United States.  The
Company's international marketing effort is directed from Brussels,
Belgium; Tokyo, Japan; and Singapore. The Company believes its refractory
manufacturing facilities are strategically located to satisfy the stringent
delivery requirements of the steel industry. The Company also believes that
its worldwide network of sales personnel and manufacturing facilities
facilitates the international expansion of its satellite PCC operations. 

RAW MATERIALS 

     The Company uses lime in the production of PCC, and is a significant
purchaser of lime in North America.  Generally, lime is purchased from
unaffiliated suppliers located in close geographic proximity to the
Company's satellite PCC plants, pursuant to long-term contracts, and to a
lesser extent, supplied by the Company from its Adams, Massachusetts
facility.  If there were to be an interruption in the supply of lime from
any particular lime supplier to the Company, the Company believes that
alternative sources of lime would be available at effectively the same cost
to the Company.  In Europe, supplies of lime suitable for the manufacture
of PCC are generally available.

     The principal raw materials used in the Company's monolithic
refractories products are refractory-grade magnesia and various forms of
aluminosilicates. The Company also purchases calcium metal, calcium
silicide, graphite, calcium carbide and various alloys for use in the
production of metallurgical wires and uses lime and aluminum in the
production of calcium metal. The Company purchases a significant portion of
its magnesite requirements from sources in the People's Republic of China. 

     The Company believes that it could obtain adequate supplies from
alternate sources in the event of supply interruptions of its raw material
requirements. 

                              5

<PAGE>

COMPETITION 

     The Company is continually engaged in efforts to develop new products
and technologies and refine existing products and technologies in order to
remain competitive and, in certain circumstances, to position itself as a
market leader. 

     With respect to its PCC products, the Company competes for sales to
the paper industry based in large part upon technological know-how, patents
and processes that allow the Company to deliver PCC that the Company
believes imparts superior brightness and opacity properties to paper on an
economical basis. The Company is the leading manufacturer and supplier of
PCC to the North American paper industry. It competes with certain
companies both in North America and abroad that sell PCC or offer
alternative products for use in paper filling and coating applications. 
Competition with respect to the Company's PCC sales is based upon
availability of materials, price, and optical characteristics such as
brightness, opacity and paper strength. 

     With respect to the Company's refractory products, competitive
conditions vary by geographic region. Competition is based upon the
performance characteristics of the product (including strength, quality and
consistency and ease of application), price,  and the availability of
technical support. The Company competes with different companies in
different geographic areas and in separate aspects of its product line. 

     The Company competes in sales of its limestone and talc based
primarily upon product quality, price,  and the geographic location of the
purchaser. 

RESEARCH AND DEVELOPMENT 

     Many of the Company's product lines are technology-based, and the
Company's business strategy for continued growth in sales and profitability
depends, to a large extent, on the continued success of its research and
development activities. Among the significant achievements of the Company's
research and development effort have been the satellite PCC plant concept,
acid-tolerant PCC, production of PCC crystal morphologies for coating
paper, the SEQUAD-RT- sprayer, the KILNTEQ-RT- system, and numerous new
refractory products.

     The Company maintains its main research facilities in Bethlehem and
Easton, Pennsylvania, with more than 170 employees engaged in research and
development.  It also has smaller research and development facilities in
Finland, Ireland and Japan.  Expertise in inorganic chemistry,
crystallography and structural analysis, fine particle technology and other
aspects of materials science applies to and supports all of the Company's
product lines. 

     For the years ended December 31, 1998, 1997 and 1996, the Company
expended approximately $21.0 million, $20.4 million, and $19.7 million,
respectively, on research and development. The Company believes, based upon
its review of publicly available information regarding the reported
research and development spending of certain of its competitors, that its
investment in research and development as a percentage of net sales exceeds
comparable industry norms.  The Company's research and development spending
for 1998 approximated 3.4% of net sales.

PATENTS AND TRADEMARKS 

     The Company owns or has the right to use approximately 400 patents and
approximately 800 trademarks related to its business. The Company believes
that its rights under its existing patents, patent applications and
trademarks are of value to its operations, but no one patent, application
or trademark is material to the conduct of the Company's business as a
whole.

INSURANCE

     The Company maintains liability and property insurance and insurance
for business interruption in the event of damage to its production
facilities and certain other insurance covering risks associated with its
business. The Company believes such insurance is adequate for the operation
of its business. From time to time various types of insurance for companies
in the specialty minerals business have been very expensive or, in some
cases, unavailable.  There is no assurance that in the future the Company
will be able to maintain the coverage initially obtained or that the
premiums therefore will not increase substantially. 

                              6

<PAGE>

EMPLOYEES
 
     At December 31, 1998, the Company employed approximately 2,260
persons, of whom approximately 700 were employed by the Company outside the
United States.   The Company believes its relationships with its employees
are good.

ENVIRONMENTAL, HEALTH AND SAFETY MATTERS

     The Company's operations are subject to federal, state, local and
foreign laws and regulations relating to the environment and health and
safety. Certain of the Company's operations involve and have involved the
use and release of substances that are classified as toxic or hazardous
substances within the meaning of these laws and regulations. Environmental
operating permits are, or may be, required for certain of the Company's
operations and such permits are subject to modification, renewal and
revocation. The Company regularly monitors and reviews its operations,
procedures and policies for compliance with these laws and regulations. The
Company believes its operations are in substantial compliance with these
laws and regulations and that there are no violations which should have a
material effect on the Company. Despite these compliance efforts, some risk
of environmental and other damage is inherent in the operation of the
business of the Company, as it is with other companies engaged in similar
businesses, and there can be no assurance that material damage will not
occur in the future. The cost of compliance with these laws and regulations
is not expected to have a material adverse effect on the Company. However,
future events, such as changes in or modifications of interpretations of
existing laws and regulations or enforcement policies or further
investigation or evaluation of the potential health hazards of certain
products may give rise to additional compliance and other costs that could
have a material adverse effect on the Company. The Company has a right of
indemnification for certain potential environmental, health and safety
liabilities under agreements entered into between the Company and Pfizer
Inc ("Pfizer") or Quigley Company, Inc. ("Quigley"), a wholly-owned
subsidiary of Pfizer, in connection with the reorganization.  See "Certain
Relationships and Related Transactions" in Item 13.

CAUTIONARY FACTORS THAT MAY AFFECT FUTURE RESULTS

     The disclosure and analysis set forth in this report contains certain
forward-looking statements, particularly statements relating to future
actions, performance or results of current and anticipated products, sales
efforts, expenditures, and financial results.  From time to time, the
Company also provides forward-looking statements in other publicly-released
materials, both written and oral.  Forward-looking statements provide
current expectations or forecasts of future events such as new products,
revenues and financial performance, and are not limited to describing
historical or current facts.  They can be identified by their use of words
such as "plans," "expects," "anticipated," "will" and other words and
phrases of similar meaning.

     Forward-looking statements are necessarily based on assumptions,
estimates and limited information available at the time they are made.  A
broad variety of risks and uncertainties, both known and unknown, as well
as the inaccuracy of assumptions and estimates, can affect the realization
of the expectations or forecasts in these statements.  Consequently, no
forward-looking statement can be guaranteed.  Actual future results may
vary materially.

     The Company undertakes no obligation to update any forward-looking
statements.  Investors should refer to the Company's subsequent filings 
under the Securities Exchange Act of 1934 for further disclosures.

     As permitted by the Private Securities Litigation Reform Act of 1995,
the Company is providing the following cautionary statements which identify
factors that could cause the Company's actual results to differ
materially from historical and expected results.  It is not possible to
foresee or identify all such factors.  Investors should not consider this 
list an exhaustive statement of all potential risks, uncertainties and 
inaccurate assumptions.

- -    HISTORICAL GROWTH RATE
     Continuance of the historical growth rate of the Company depends upon
     a number of uncertain events, including the outcome of the Company's
     strategies of increasing its penetration into geographical markets
     such as Asia, Latin America and Europe; increasing its penetration
     into product markets such as the market for paper coating pigments
     and the market for groundwood paper pigments; increasing sales to
     existing PCC customers by increasing the amount of PCC used in each
     ton of paper produced; and developing, introducing and selling new
     products.  Difficulties, delays or failures of any of these
     strategies could cause the future growth rate of the Company to
     differ materially from its historical growth rate.

                              7
<PAGE>

- -    CONTRACT RENEWALS
     The Company's sales of PCC are predominantly pursuant to long-term
     agreements, generally ten  years in length, with paper mills at which
     the Company operates satellite PCC plants.  The terms of many of
     these agreements have been extended, often in connection with an
     expansion of the satellite PCC plant.  To date, the Company's
     experience with extensions and renewals of its satellite PCC
     agreements has been favorable.  There is no assurance, however, that
     this will continue to be the case.  Failure of a number of the
     Company's customers to renew existing agreements could cause the
     future growth rate of the Company to differ materially from its
     historical growth rate, and could have a substantial adverse effect
     on the Company's results of operations.

- -    LITIGATION; ENVIRONMENTAL EXPOSURES
     The Company's operations are subject to international, federal, state
     and local environmental, tax and other laws and regulations, and
     potentially to claims for various legal, environmental and tax
     matters.  The Company is currently a party to various litigation
     matters, including the Eaton litigation which has previously been
     disclosed in the Management's Discussion and Analysis sections of the
     Company's most recent filings under the Securities Exchange Act of
     1934.  While the Company carries liability insurance which it
     believes to be appropriate to its businesses, and has provided
     reserves for such matters which it believes to be adequate, an
     unanticipated liability arising out of such a litigation matter or a
     tax or environmental proceeding could have a material adverse effect
     on the Company's financial condition or results of operations.

- -    NEW PRODUCTS
     The Company is engaged in a continuous effort to develop new products
     in all of its product lines.  Difficulties, delays or failures in
     the development, testing, production, marketing or sale of such new
     products could cause its actual results of operations to differ
     materially from expected results.

- -    COMPETITION; PROTECTION OF INTELLECTUAL PROPERTY
     Particularly in its PCC and Refractory product lines, the Company
     competes based in part upon proprietary knowledge, both patented and
     unpatented.  The Company's ability to achieve anticipated results
     depends in part on its ability to defend its intellectual property
     against inappropriate disclosure as well as against infringement.  In
     addition, development by the Company's competitors of new products or
     technologies that are more effective or less expensive than those the
     Company offers could have a material adverse effect on the Company's
     financial condition or results of operations.

- -    RISKS OF DOING BUSINESS ABROAD
     As the Company expands its operations overseas, it faces the
     increased risks of doing business abroad, including inflation,
     fluctuations in interest rates and currency exchange rates,
     nationalization, expropriation, limits on repatriation of funds,
     unstable governments and legal systems, and other factors.  Adverse
     developments in any of these areas could cause actual results to
     differ materially from historical and expected results.

- -    AVAILABILITY OF RAW MATERIALS
     The Company's ability to achieve anticipated results depends in part
     on having an adequate supply of raw materials for its manufacturing
     operations, particularly lime and carbon dioxide  for PCC operations
     and magnesia for refractory operations, and on having adequate access
     to the ore reserves at its mining operations.  Unanticipated changes
     in the costs or availability of such raw materials, or in the
     Company's ability to have access to its ore reserves, could adversely
     affect the Company's results of operations.

- -    YEAR 2000                                                              
        
     The Company faces the risk that the transition to the year 2000 may
     cause its own systems and equipment, or the systems and equipment of
     other firms, to fail unexpectedly.  The Company is taking steps to
     study and reduce this risk, as outlined in the Management's
     Discussion and Analysis section of this report.  However, failure of
     the Company's efforts to repair or replace its information technology
     systems according to schedule; failure to identify a mission-
     critical, non-year 2000-compatible item of software or embedded
     control; failure of a significant vendor or customer to provide the
     Company with goods or services or to purchase or pay for goods or
     services, because of year 2000-related breakdowns; or widespread year
     2000-related disruption of the electrical, banking,
     telecommunications or transportation systems or of the economy in
     general, could adversely affect the Company's financial position or
     results of operations.

                              8
<PAGE>

- -    CYCLICAL NATURE OF CUSTOMERS' BUSINESS
     The bulk of the Company's sales are to customers in two industries,
     paper and steel, which have historically been cyclical.  The
     Company's exposure to variations in its customers' business has been
     reduced in recent years by the growth in the number of plants it
     operates; by the diversification of its portfolio of products and
     services; and by its geographic expansion, since economic problems
     are usually not equally felt in all parts of the world.  In addition,
     the structure of some of the Company's long-term contracts gives it a
     degree of protection against declines in the quantity of product
     purchased, since the price per ton rises as the number of tons
     purchased declines.  In addition, many of the Company's product lines
     lower its customers' cost of product or increase their productivity,
     which should encourage them to use its products.  However, a
     sustained economic downturn in one or more of the industries or
     geographic regions which the Company serves, or in the worldwide
     economy, could cause actual results of operations to differ
     materially from historical and expected results.

- -    ADOPTION OF A COMMON EUROPEAN CURRENCY
     On January 1, 1999, eleven European countries adopted the euro as
     their common currency.  Adoption of the euro will require changes
     both to the Company's financial reporting systems and to commercial
     arrangements with third parties, including customers, suppliers and
     financial institutions.  In addition, adoption of a single currency
     and a common monetary policy by the countries adopting the euro can
     be expected to have effects on competition in Europe and on the
     overall economy of the region.  A failure on the Company's part to
     identify or to correct systems or agreements which require
     modification, or effects on the competition or the general economy of
     the region, could adversely affect its financial position or results
     of operations.

ITEM 2.   PROPERTIES 

     Set forth below is the location of, and customer served by, each of
the Company's satellite PCC plants at December 31, 1998.  Generally, the
land on which each satellite PCC plant is located is leased at a nominal
amount by the Company from the host paper mill pursuant to a lease, the
term of which runs concurrently with the term of the PCC production and
sale agreement between the Company and the host paper mill.

LOCATION                           CUSTOMER 
- --------                           --------

Alabama, Jackson                   Boise Cascade Corporation
Alabama, Mobile                    International Paper Company 
Alabama, Selma                     International Paper Company 
Arkansas, Ashdown                  Georgia-Pacific Corporation
Brazil, Jacarei                    Votorantim Celulose e Papel
Brazil, Luiz Antonio               Votorantim Celulose e Papel
Brazil, Suzano                     Cia Suzano de Papel e Celulose
California, Anderson               Shasta Acquisition, Inc.
Canada, Cornwall, Ontario          Bowater, Inc.
Canada, Dryden, Ontario            Weyerhauser Canada Inc.
Canada, St. Jerome, Quebec         Rolland Paper Inc.
Canada, Windsor, Quebec            Domtar Inc.
Finland, Aanekoski1                Metsa-Serla Group
Finland, Anjalankoski1             Myllykoski Paper Oy
Finland, Lappeenranta1,2           Enzo-Gutzeit Group
Finland, Tervakoski1               Enzo-Gutzeit Group
Florida, Pensacola                 Champion International Corporation
France, Docelles                   UPM Kymmene Corporation
France, Saillat Sur Vienne         Aussedat Rey (a subsidiary of
                                    International Paper Company)
Germany, Schongau                  Haindl Papier Gmbh
Indonesia, Perawang1               PT Indah Kiat Pulp and Paper Corporation
Israel, Hadera                     American Israeli Paper Mills, Ltd.
Kentucky, Wickliffe                Westvaco Corporation
Louisiana, Port Hudson             Georgia-Pacific Corporation
Maine, Jay                         International Paper Company
Maine, Madison                     Madison Paper Industries
Mexico, Chihuahua                  Corporativo Copamex, S.A. de C.V.
Michigan, Plainwell                Plainwell Paper Company 
Michigan, Quinnesec                Champion International Corporation
Minnesota, Cloquet                 Potlatch Corporation 

                              9
<PAGE>

Minnesota, International Falls     Boise Cascade Corporation
New York, Oswego                   International Paper Company
New York, Ticonderoga              International Paper Company
North Carolina, Plymouth           Weyerhaeuser Company
Ohio, Chillicothe                  The Mead Corporation
Ohio, West Carrollton              Appleton Papers Inc.
Pennsylvania, Erie                 International Paper Company
Pennsylvania, Lock Haven           International Paper Company
Poland, Kwidzyn                    International Paper Company
Portugal, Figueira da Foz1         Soporcel - Sociedade Portuguesa de
                                    Celulose, S.A.
Slovakia, Ruzomberok               Severoslovenske Cululozky a Papierne
                                    s.p.
South Carolina, Eastover           Union Camp Corporation
South Africa, Merebank1            Mondi Paper Company Ltd.
Tennessee, Kingsport               Willamette Industries Inc.
Texas, Pasadena                    Pasadena Paper Company LP
Thailand, Tha Toom1                Advance Agro Public Co. Ltd.
Virginia, Franklin                 Union Camp Corporation
Washington, Camas                  James River Corporation 
Washington, Longview               Weyerhaeuser Company
Washington, Wallula                Boise Cascade Corporation
Wisconsin, Kimberly                Repap Wisconsin Inc. (a subsidiary of
                                    Repap Enterprises Corp., Inc.)
Wisconsin, Park Falls              Cross Pointe Paper Corporation
Wisconsin, Wisconsin Rapids        Consolidated Papers, Inc.

1 These plants are owned through joint ventures.
2 This PCC plant is not located on-site at the paper mill.

     The Company also owned at December 31, 1998 six plants engaged in the
mining, processing and/or production of lime, limestone, precipitated
calcium carbonate, and talc and directly or indirectly owns or leases
approximately 15 refractory manufacturing facilities worldwide. The
Company's corporate headquarters, sales offices, research laboratories,
plants and other facilities are owned by the Company except as otherwise
noted. Set forth below is certain information relating to the Company's
plants and office and research facilities.

     LOCATION                 FACILITY            PRODUCT LINE
     --------                 --------            ------------
     UNITED STATES
Arizona, Pima County          Plant; Quarry4      Limestone
California, Los Angeles       Sales Office1       PCC, Lime, Limestone,
                                                   Talc
California, 
Lucerne Valley                Plant; Quarry       Limestone
Connecticut, Canaan           Plant; Quarry       Limestone, Metallurgical
                                                   Wire/Calcium
Indiana, Highland             Plant               Monolithic Refractories
Massachusetts, Adams          Plant; Quarry       Limestone, Lime, PCC
Montana, Dillon               Plant; Quarry       Talc
New Jersey, Old Bridge        Plant               Monolithic  
                                                  Refractories/Shapes
New York, New York            Headquarters1;      All Company Products
                              Sales Offices1      
          
Ohio, Bryan                   Plant               Monolithic Refractories
Ohio, Dover                   Plant               Refractories
Pennsylvania, Bethlehem       Research            PCC, Lime,Limestone, 
                              Laboratories;        Talc, Pyrolytic Graphite
                              Sales Offices         
Pennsylvania, Easton          Research            PCC, Lime, Limestone,
                              Laboratories;        Talc, Pyrolytic
                              Plant               Graphite, Refractories,
                                                   Metallurgical
                                                  Wire
Pennsylvania, Slippery Rock   Plant               Refractory Shapes  


                              10
<PAGE>

     INTERNATIONAL
Australia, Carlingford        Sales Office1       Monolithic Refractories
Belgium, Brussels             Sales Office1       Monolithic  
                                                  Refractories/PCC
Brazil, Belo Horizonte        Sales Office1       Monolithic Refractories
Brazil, Sao Paulo             Sales Office1       PCC
Brazil, Volta Redonda         Sales Office1       Monolithic Refractories
Canada, Lachine               Plant               Refractory Shapes
China, Huzhou                 Plant2              Monolithic Refractories
Germany, Duisburg             Sales Office        Monolithic Refractories
Ireland, Cork                 Plant; Sales        Monolithic Refractories/
                               Office1             Metallurgical Wire
Italy, Brescia                Sales Office;       Monolithic Refractories/
                              Plant                Shapes
Japan, Gamagori               Plant               Monolithic Refractories/
                                                  Shapes, Calcium
Japan, Tokyo                  Sales Office1       Monolithic Refractories/  
                                                   Shapes, Calcium, PCC,  
                                                   Talc
Mexico, Gomez Palacio         Plant1              Monolithic Refractories
Singapore.                    Sales Office1       PCC
Spain, Santander              Sales Office1       Monolithic Refractories 
South Africa, 
 Pietermaritzburg             Plant               Monolithic Refractories
South Korea, Yangsan          Plant3              Monolithic Refractories 
South Korea, Seoul            Sales Office1       Monolithic Refractories
United Kingdom, 
 Lifford                      Plant               PCC, Lime
United Kingdom, 
 Rotherham                    Plant               Monolithic Refractories/  
                                                  Shapes

1    Leased by the Company. The facilities in Cork, Ireland are operated
     pursuant to a 99-year lease, the term of which commenced in 1963. 
     The Company's headquarters and sales offices in New York, New York
     are held under a lease which expires in 2010.
2    This plant is leased through a joint venture.
3    This plant is owned through a joint venture.
4    This plant is leased to another company.
           
     The Company believes that its facilities, which are of varying ages
and are of different construction types, have been satisfactorily
maintained, are in good condition, are suitable for the Company's
operations and generally provide sufficient capacity to meet the Company's
production requirements.  Based on past loss experience, the Company
believes it is adequately insured in respect of these assets, and for
liabilities which are likely to arise from its operations.


ITEM 3.   LEGAL PROCEEDINGS 

     The Company and its subsidiary Specialty Minerals Inc. are defendants
in a lawsuit captioned EATON CORPORATION V. PFIZER INC, MINERALS
TECHNOLOGIES INC. AND SPECIALTY MINERALS INC. which was filed on July 31,
1996 and is pending in the U.S. District Court for the Western District of
Michigan.  The suit alleges that certain materials sold to Eaton for use in
truck transmissions were defective, necessitating repairs for which Eaton
seeks reimbursement.  The amount of damages claimed by Eaton is
approximately $20 million plus interest.  The Company believes it has
insurance coverage for a substantial portion of the alleged damages, if it
should be held liable.  While all litigation contains an element of
uncertainty, the Company and Specialty Minerals Inc. believe that they have
valid defenses to the claims asserted by Eaton in this lawsuit, are
continuing to vigorously defend all such claims, and believe that the
outcome of this matter will not have a material adverse effect on the
Company's consolidated financial position or results of operations.

     The Company and its subsidiaries are not party to any other pending
legal proceedings, other than ordinary routine litigation incidental to
their businesses.  


ITEM 4.   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

 No matters were submitted to a vote of security holders during the
fourth quarter of 1998. 

                              11
<PAGE>

EXECUTIVE OFFICERS OF THE REGISTRANT

     Set forth below are the names and ages of all Executive Officers of
the Registrant indicating all positions and offices with the Registrant
held by each such person, and each such person's principal occupations or
employment during the past five years.

NAME                     AGE  POSITION
- ----                     ---  --------

Jean-Paul Valles         62   Chairman of the Board and Chief
                               Executive Officer
Paul R. Saueracker       57   Vice President of the Company and
                               President, Specialty Minerals Inc.
Anton Dulski             57   Vice President of the Company and
                               President,  MINTEQ International Inc.
S. Garrett Gray          60   Vice President, General Counsel and
                               Secretary
Neil M. Bardach          50   Vice President, Finance and Chief
                               Financial Officer; Treasurer
                               (effective February 1, 1999) 
Howard R. Crabtree       54   Vice President, Organization & Human
                               Resources
William A. Kromberg      53   Vice President, Taxes
Michael A. Cipolla       41   Controller
Stephen E. Hluchan       56   Treasurer (retired, effective
                               February 1, 1999)

     Jean-Paul Valles, Ph.D., has served as Chairman of the Board and a
director of the Company since April 1989. He was elected Chief Executive
Officer of the Company  in August 1992. Until the completion of the initial
public offering, Dr. Valles served as a Vice-Chairman of Pfizer, a position
he had held since March 1992. At Pfizer, Dr. Valles had been responsible
for a number of Pfizer's businesses, including, since 1989, the operations
that comprise the Company, and had served in a number of other executive
positions, including Executive Vice President from 1991 to 1992.  Dr.
Valles continues to serve as a director of Pfizer. In addition, he is a
director of Junior Achievement of New York, Inc. and of The New York
Chapter of the French-American Chamber of Commerce in the U.S., Inc., and a
member of the American Economic Association and the Financial Executives
Institute. 

     Paul R. Saueracker has served as Vice President of the Company and
President of Specialty Minerals Inc. since February 1994.  Prior to that
time, he had been Executive Vice President of Specialty Minerals Inc. since
October 1993.  Since 1989, he  served as Vice President of Marketing and
Sales of Specialty Minerals Inc.  Mr. Saueracker is a former President of
the Pulverized Limestone Division of the National Stone Association and a
member of the Technical Association of the Pulp and Paper Industry and the
Paper Industry Management Association.  He is also a member of the Board of
Trustees of the Institute of Paper Science and Technology in Atlanta,
Georgia.

     Anton Dulski has served as Vice President of the Company and
President of Minteq International Inc. since January 1, 1996.  Previously,
he served as Senior Vice President of Minteq with responsibility for
European operations from 1993 to 1995 and; as Vice President of Minteq with
responsibility for sales and marketing in Europe from 1992 to 1993.

     S. Garrett Gray has served as Vice President and Secretary of the
Company since April 1989. In August 1992, Mr. Gray was appointed General
Counsel of the Company.

     Neil M. Bardach has served as Vice President-Finance and Chief
Financial Officer of the Company since August 1998. Prior to that time, Mr.
Bardach was Chief Financial Officer of The Genlyte Group Incorporated, a
publicly traded manufacturer of lighting fixtures, since July 1994, and
held various positions with Anacomp, Inc. from 1983 to 1994.

     Howard R. Crabtree was appointed Vice President-Organization & Human
Resources of the Company in January 1997, having served as Vice President-
Human Resources since August 1992.

     William A. Kromberg has served as Vice President-Taxes of the Company
since February 1993.  From May 1989 to that time, he was Vice President-
Taxes of Culbro Corporation, a distributor and manufacturer of consumer and
industrial products.

     Michael A. Cipolla has served as Controller of the Company since
April 1, 1998.  From December 1992 to March 1998 he served as Assistant
Corporate Controller of the Company.  Prior to joining the Company, Mr.
Cipolla was with KPMG LLP from 1983; and served as a Senior Manager from
1987.

     Stephen E. Hluchan served as Treasurer of the Company from August
1992 through January 1999.

                               12
<PAGE>

                              PART II


ITEM 5.   MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED
STOCKHOLDER MATTERS


     The Company's common stock is traded on the NYSE under the symbol
"MTX".  

     Information on market prices and dividends is set forth below:

<TABLE>
<CAPTION>


   1998 QUARTERS            FIRST     SECOND    THIRD     FOURTH
   -------------            -----     ------    ------    ------- 
  <S>                      <C>       <C>       <C>       <C>

   Market Price Range Per 
   Share of Common Stock          
   High                     $52 5/16  $55 9/16  $54       $51 1/4
   Low                      40 15/16  48 3/8    35 7/8    36
   Close                    49 15/16  51 3/4    39 1/4    40 15/16

   Dividends paid per 
    common share            $.025     $.025     $.025     $.025


   1997 QUARTERS            FIRST     SECOND    THIRD     FOURTH
   -------------            -----     ------    -----     ------

   Market Price Range Per 
   Share of Common Stock
   High                     $42 7/8   $40 7/8   $44 15/16 $46 1/8
   Low                      34        32 1/8    36 1/8    39 1/2
   Close                    34 1/4    37 1/4    44 3/4    45 7/16

   Dividends paid per 
    common share            $.025     $.025     $.025     $.025

</TABLE>
   
 
     On March 3, 1999, the last reported sale price on the NYSE was
$43 5/16  per share.  As of March 3, 1999, there were approximately
294 holders of record of the common stock.

     On January  28, 1999, the Company's Board of Directors declared a
quarterly dividend on its common stock of $.025 per share in respect of the
quarter ended December 31, 1998.  Subject to satisfactory financial results
and declaration by the Board, the Company currently intends to pay
quarterly cash dividends on its common stock of  at least $.025 per share. 
Although the Company believes its historical earnings indicate that this
dividend policy is appropriate, it will be reviewed by the Board from time
to time in light of the Company's financial condition, results of
operations, current and anticipated capital requirements, contractual
restrictions and other factors deemed relevant by the Board. No dividend
will be payable unless declared by the Board and unless funds are legally
available for payment thereof.

     On February 26, 1998, the Company's Board of Directors authorized a
$150 million stock repurchase program.  The stock will be purchased on the
open market from time to time.  As of January 19, 1999, the Company had
repurchased approximately 909,000 shares under this program, at an average
price of approximately $47 per share.
 

                              13
<PAGE>

ITEM 6.   SELECTED FINANCIAL DATA

<TABLE>
<CAPTION>

THOUSANDS, EXCEPT 
  PER SHARE DATA         1998      1997      1996      1995      1994
                         ----      ----      ----      ----      ----
<S>                  <C>       <C>      <C>        <C>      <C>
INCOME STATEMENT DATA:
Net sales             $609,193  $602,335  $555,988  $524,451  $472,637
Cost of goods sold     416,558   424,612   396,345   375,655   335,327
Marketing, 
 distribution and 
 administrative 
 expenses               79,150    77,104    72,485    70,464    66,533
Research and                                                        
 development expense    21,038    20,391    19,740    19,658    18,187
                        ------    ------    ------    ------    ------
Income from 
 operations             92,447    80,228    67,418    58,674    52,590

Net income              57,224    50,312    43,097    39,529    33,346


EARNINGS PER SHARE:
Basic earnings 
 per share              $ 2.57    $ 2.23    $ 1.91    $ 1.75    $ 1.48
                        ======    ======    ======    ======    ======

Diluted earnings 
 per share               $2.50    $ 2.18    $ 1.86    $ 1.72    $ 1.46
                         =====    ======    ======    ======    ======

Weighted average 
number of common 
shares outstanding                                   
   Basic                22,281    22,558    22,621    22,633    22,603
   Diluted              22,926    23,113    23,132    23,001    22,805
Dividends declared 
 per common share       $ 0.10    $ 0.10    $ 0.10    $ 0.10    $ 0.10

BALANCE SHEET DATA:              
Working capital       $112,892  $132,364  $115,540  $86,746   $135,844
Total assets           760,912   741,407   713,861  649,144    588,124
Long-term debt          88,167   101,571   104,900   67,927     83,031
Total debt             101,678   115,560   130,239   95,817     83,031
Total shareholders'                                            
 equity                489,163   466,997   448,250   416,153   381,098


</TABLE>

                              14
<PAGE>

ITEM 7.   MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
RESULTS OF OPERATIONS

<TABLE>
<CAPTION>

INCOME AND EXPENSE ITEMS AS
A PERCENTAGE OF NET SALES
YEAR ENDED DECEMBER 31,                  1998      1997      1996
                                         ----      ----      ----     
<S>                                   <C>       <C>       <C>
Net sales                               100.0%    100.0%    100.0%
Cost of goods sold                       68.4      70.5      71.3
Marketing, distribution and 
 administrative expenses                 13.0      12.8      13.0
Research and development expenses         3.4       3.4       3.6
                                         ----      ----      ----
Income from operations                   15.2      13.3      12.1
Net income                                9.4%      8.4%      7.8%
                                         ====      ====      ====

</TABLE>

OVERVIEW OF 1998 AND OUTLOOK

    In 1998, the Company adhered to its strategy of expanding its
Precipitated Calcium Carbonate (PCC) product line within the Specialty
Minerals segment.  The Company commenced operations at four new satellite
PCC plants in three different countries and signed agreements for
construction of two large satellite plants, one in China and one in the
United States. Together, the plants under construction have production
capacity equivalent to approximately nine "satellite units" and are
scheduled to begin operations in the first half of 1999.  (A satellite unit
is equivalent to annual production capacity of between 25,000 and 35,000
tons of PCC.)  The Company also contracted for the addition of a large PCC
coating facility at an existing satellite plant in Finland and acquired a
PCC business in the United Kingdom.  The patented acid-tolerant PCC
technology continues to show growth and the groundwood sector of the
worldwide paper industry continues to show widespread interest in this
product.  In addition, the Company expanded several satellite plants at
various locations around the world.  As a result, sales of PCC as a
percentage of the Company's total net sales, which were 37.4% in 1992, had
risen to 57.4% by 1998.  The Company expects this trend to continue as
volume growth of PCC continues to outpace growth in the Processed Minerals
product line and the Refractories segment.

    The Company now operates or has under construction 55 satellite PCC
plants in 15 countries worldwide.  The Company is optimistic that volume
growth will continue in 1999. The Company expects additional expansions at 
existing satellite PCC plants to occur in 1999 and also expects to sign 
contracts for additional satellite PCC plants.

    In 1999, the Company plans to continue its focus on the following
growth strategies for the PCC product line:

- -  Continued efforts to increase market penetration in North America,
   Europe, Latin America, and the Pacific Rim.
- -  Continued expansions of the capacity of existing satellite PCC plants in
   response to increased demand, which is resulting from either increased
   PCC filler levels in paper or the installation of new paper machines.
- -  Continued research and development and marketing efforts of acid-
   tolerant PCC, coating PCC and other products. 

    However, there can be no assurance that the Company will achieve
success in implementing any one or more of these strategies.  

     The Company's sales of PCC are predominantly pursuant to long-term
agreements, generally ten years in length, with paper mills at which the
Company operates satellite PCC plants.  The terms of many of these
agreements have been extended, often in connection with an expansion of the
satellite PCC plant.  To date, the Company's experience with extensions and
renewals of its satellite PCC agreements has been favorable.  There is no
assurance, however, that these contracts will be renewed prior to their
respective expiration dates.

     The Company will continue to emphasize specialty products in its
Refractories segment product lines and to commercialize products, processes
and equipment through research and development efforts.  

    As the Company continues to expand its operations overseas, it faces
the inherent risks of doing business abroad, including exchange rate
fluctuations, nationalization, expropriation, limits on repatriation of
funds and other factors.  In addition, the Company's performance depends to
some extent on that of the industries it serves, particularly the paper,
steel and construction industries.  

                              15
<PAGE>

RESULTS OF OPERATIONS 

<TABLE>
<CAPTION>

NET SALES
DOLLARS IN MILLIONS       1998     GROWTH     1997     GROWTH     1996
                         ------    ------    ------    ------    ------  
<S>                     <C>        <C>      <C>        <C>      <C>
Net sales                $609.2     1.1%     $602.3     8.3%     $556.0

</TABLE>
                              

     Worldwide net sales in 1998 increased 1.1% over the previous year to
$609.2 million.  The stronger U.S. dollar had an unfavorable impact of
approximately $12 million (or 2 percentage points) on sales growth.  Sales
in the Specialty Minerals segment, which includes the PCC and Processed
Minerals product lines, grew 6.4% while sales in the Refractories segment 
declined 9.5%.   In 1997, worldwide net sales increased 8.3% over the prior
year to $602.3 million.  The Specialty Minerals segment sales increased
12.2% and the Refractories segment sales increased 1.3% in 1997.

     Worldwide net sales of PCC in 1998 increased 16.5% to $349.5 million
from $299.9 million in the prior year.  This increase was primarily
attributable to the commencement of operations at four new satellite PCC
plants in 1998 and to the acquisition of a PCC business in the United
Kingdom.  In addition, a full year of operations at several satellite PCC
plants that began operations in 1997 and volume increases from the
Company's long-standing satellite PCC plants also contributed to the sales
growth.  Foreign exchange had an unfavorable impact of approximately $5
million on sales growth.  PCC sales in 1997 increased 14.0% to $299.9
million from $263.1 million in 1996.  This growth was primarily
attributable to the start-up of operations at five new satellite plants
that began operations in 1997 and volume increases generated by the
Company's long-standing satellite PCC plants.

     Net sales of Processed Minerals decreased 23.0% in 1998.  In April
1998, the Company divested its Midwest limestone business in Port Inland,
Michigan.  References to ongoing operations exclude the results from this
facility.  Net sales from the Midwest limestone business in 1997 were $20.8
million.  Net sales from this facility in 1998, prior to the divestiture,
were $1.6 million.  Net sales of Processed Mineral products from ongoing
operations decreased 5.5% to $77.9 million from $82.4 million in 1997. This
decrease was due largely to the refocus of the talc product line on higher
margin customers and products and to the use of the Company's lime to
produce PCC instead of selling the lime to third parties. Net sales of
Processed Minerals in 1997 rose 7.3%.  This growth was primarily
attributable to higher volumes.

     In 1998, sales of pyrolytic graphite products, previously reported in
the Processed Minerals product line, were reported in the Refractories
segment.  Prior year's sales have been reclassified to reflect this change.

     Net sales in the Refractories segment in 1998 decreased 9.5% to $180.2
million from $199.2 million in the prior year.  Excluding the impact of
foreign exchange, the sales decrease was approximately 6.0%.  In the second
half of 1998, the economic conditions in the worldwide steel industry
deteriorated, which had a negative effect on the Refractories segment
sales. In both 1998 and 1997, strategic replacement of commodity products 
with specialty products and systems increased the profitability of this 
product line.  In 1997, net sales in the Refractories segment increased 
1.3% from the prior year.

     Net sales from ongoing operations in the United States in 1998
increased 4.2%. This increase was attributable to the growth in the PCC
product line.  Foreign sales in 1998 increased 5.1%, primarily as a result
of the continued international expansion of the Company's PCC product line. 
In 1997, domestic net sales were 8.2% higher than in the prior year as a
result of increased sales in the Specialty Minerals segment.  Foreign sales
were approximately 8.6% greater than in the prior year, primarily due to
growth in the PCC product line.

<TABLE>
<CAPTION>

OPERATING COSTS 
AND EXPENSES 
DOLLARS IN MILLIONS         1998   GROWTH     1997     GROWTH     1996
- -------------------        ------  ------    ------    ------    ------   
<S>                       <C>     <C>       <C>        <C>      <C>
Cost of goods sold         $416.6  (1.9%)    $424.6     7.1%     $396.3
Marketing, distribution 
 and administrative         $79.2   2.7%      $77.1     6.4%      $72.5
Research and 
 development                $21.0   3.2%      $20.4     3.3%      $19.7

</TABLE>

     Cost of goods sold was 68.4% of sales.  This ratio was lower than the
prior year and was primarily attributable to improved profitability in the
Refractories segment and the Processed Minerals product lines within the
Specialty Minerals segment.   Cost of goods sold in 1997 was 70.5% of
sales, which was lower than the prior year. This was attributable to the 
improved profitability of the Refractories segment.

     Marketing, distribution and administrative costs increased 2.7% to
$79.2 million and were 13.0% of sales. In 1997, marketing, distribution and
administrative costs increased 6.4% to $77.1 million and were 12.8% of
sales.

     Research and development expenses during 1998 increased 3.2% to $21.0
million and represented 3.4% of sales, comparable to the 1997 ratio. In
1997 and 1996 research and development spending was $20.4 million and $19.7
million, respectively.

                               16
<PAGE>

<TABLE>
<CAPTION>

INCOME FROM OPERATIONS
DOLLARS IN MILLIONS             1998   GROWTH     1997    GROWTH    1996
- -------------------            ------  ------    ------   ------   ------
<S>                            <C>     <C>       <C>      <C>      <C> 
Income from operations          $92.4   15.2%     $80.2    19.0%    $67.4

</TABLE>


     Income from operations in 1998 increased 15.2% to $92.4 million from
$80.2 million in 1997.  This increase was due primarily to improved
profitability in both the Specialty Minerals segment and the Refractories
segment and to solid growth in the PCC product line within the Specialty
Minerals segment.  The Specialty Minerals segment's improved profitability
was primarily due to the turnaround in the Processed Minerals product line.
The Refractories segment's improved profitability was due to the continued
emphasis on new higher margin specialty products and delivery systems. 
However, the recent downturn in the worldwide steel industry has negatively
affected the sales and profitability of the Refractories segment.  In 1997,
income from operations rose 19.0% to $80.2 million from $67.4 million in
1996.  This increase was due primarily to solid growth in the PCC product
line within the Specialty Minerals segment, and to improved profitability
in the Refractories segment.  Operating profits were negatively impacted by
startup costs associated with the five new satellite PCC plants and some
weakness in the Processed Minerals product line, specifically in talc
products.  

<TABLE>
<CAPTION>

NON-OPERATING DEDUCTIONS
DOLLARS IN MILLIONS       1998    GROWTH     1997     GROWTH     1996
- -------------------      ------   ------    ------    ------    ------
<S>                     <C>      <C>       <C>       <C>      <C>
Non-operating 
 deductions, net         $(6.1)   (24.1)%   $(8.0)     67.7%    $(4.8)

</TABLE>

     Non-operating deductions in 1998 decreased from the prior year due to
lower net interest expense and lower foreign exchange losses.  Gross
interest expense decreased 14.0% from the prior year to $7.0 million.  Non-
operating deductions in 1997 increased from 1996 due to foreign exchange
losses and higher net interest expense which resulted from a reduction in
capitalized interest costs.  These deductions were partially offset by
higher interest income. Gross interest expense in 1997 decreased 2.6% from
the prior year to $8.2 million.  The foreign exchange losses were
approximately $1.7 million in 1997 and occurred primarily in the joint
ventures in Thailand, Indonesia and Korea. 

<TABLE>
<CAPTION>

PROVISION FOR TAXES ON INCOME
DOLLARS IN MILLIONS             1998     GROWTH     1997     GROWTH    1996
- -------------------            ------    ------    ------    ------   ------
<S>                            <C>      <C>       <C>       <C>      <C>
Provision for taxes on income   $27.4      18.4%    $23.1      18.6%   $19.5

</TABLE>

    The effective tax rate decreased to 31.7% in 1998 compared to 32.0% 
in 1997.  This decrease was due to lower state and local taxes and 
utilization of foreign tax credits.  The effective tax rate was 31.1% 
in 1996.

<TABLE>
<CAPTION>

MINORITY INTERESTS
DOLLARS IN MILLIONS      1998    GROWTH     1997     GROWTH     1996
- -------------------     ------   ------    ------    ------    ------
<S>                     <C>      <C>       <C>       <C>      <C>
Minority interests       $1.8     N.A.     $(1.2)     N.A.     $ --

</TABLE>

     In 1998, the consolidated joint ventures reflected increased profits
as compared to the prior year, and foreign exchange losses had less of an
effect on joint venture profits in 1998 as compared to 1997. 

<TABLE>
<CAPTION>

NET INCOME
DOLLARS IN MILLIONS      1998    GROWTH     1997     GROWTH     1996
- -------------------     ------   ------    ------    ------    ------
<S>                    <C>      <C>       <C>        <C>      <C>
Net income              $57.2     13.7%     $50.3      16.7%    $43.1

</TABLE>

     Net income increased 13.7% in 1998 to $57.2 million.  In 1997, net
income increased 16.7% to $50.3 million. Earnings per common share, on a
diluted basis, increased 14.7% to $2.50 in 1998 as compared to $2.18 in the
prior year.

LIQUIDITY AND CAPITAL RESOURCES

     The Company's financial position remained strong during 1998.  Cash
flows in 1998 were provided from operations and the sale of the Midwest
limestone business.  The cash was applied principally to fund approximately
$82.5 million of capital expenditures, acquire a specialty PCC business,
repurchase $42.6 million of common shares for treasury, and remit the
required per annum principal payment of $13 million under the Company's
Guarantied Senior Notes due June 11, 2000.  Cash provided from operating
activities was the primary source of liquidity and amounted to $117.0
million in 1998, $120.6 million in 1997 and $69.9 million in 1996.

     The Variable/Fixed Rate Industrial Development Revenue Bonds due April
1, 2012 are tax-exempt 15-year instruments and were issued on April 1, 1997
to finance the construction of a PCC plant in Jackson, Alabama.  The bonds
bear interest at either a variable rate or fixed rate, at the option of the
Company.  Interest is payable semi-annually under the fixed rate option and

                               17
<PAGE>

monthly under the variable rate option.  The Company has selected the
variable rate option on these borrowings and the average interest rate for
the year ending December 31, 1998 was approximately 3.7%.

     On August 4, 1997, the Company redeemed $1,455,000 of the
Variable/Fixed Rate Industrial Development Revenue Bonds due April 1, 2012. 
This represented the unused portion of the original bond issuance proceeds
received on April 1, 1997 to finance the construction of a PCC plant in
Jackson, Alabama.

     The Variable/Fixed Rate Industrial Development Revenue Bonds due
August 1, 2012 are tax-exempt 15-year instruments that were issued on
August 1, 1997 to finance the construction of a PCC plant in Courtland,
Alabama.  The bonds bear interest at either a variable rate or fixed rate,
at the option of the Company.  Interest is payable semi-annually under the
fixed rate option and monthly under the variable rate option.  The Company
has selected the variable rate option on these borrowings and the average
interest rate for the year ending December 31, 1998 was approximately 3.7%.

     On February 26, 1998, the Company's Board of Directors authorized a
$150 million stock repurchase program.  The stock will be purchased on the
open market from time to time.  As of January 19, 1999, the Company had
repurchased approximately 909,000 shares under this program, at an average
price of approximately $47 per share.

     On April 28, 1998, the Company sold its limestone operation in Port
Inland, Michigan, to Oglebay Norton Company for approximately $34 million,
which approximated its net book value.  This high volume commodity
operation no longer complemented the Company's long-term strategic vision. 

     On April 30, 1998, the Company acquired for approximately $34 million
a PCC manufacturing facility located near Birmingham in Kings Norton,
England, from Rhodia Limited, a specialty chemicals company.  This
acquisition allows the Company to establish a base for its specialty PCC
business in Europe. This facility produces specialty PCC products for food
and pharmaceutical applications, as well as for use in plastics, sealants
and coatings, and paper. 

     The Company has approximately $110 million in uncommitted,
short-term bank credit lines, none of which were in use at December 31,
1998 or December 31, 1997.   The Company anticipates that capital
expenditures for 1999 will be approximately $90 million, principally
related to the construction of satellite PCC plants, expansion projects at
existing satellite PCC plants and other opportunities that meet the
strategic growth objectives of the Company.   The Company expects to meet
its long-term financing requirements from internally generated funds, the
aforementioned uncommitted bank credit lines and, where appropriate,
project financing of certain satellite plants.

     PROSPECTIVE INFORMATION AND FACTORS THAT MAY AFFECT FUTURE RESULTS
     The Securities and Exchange Commission encourages companies to
disclose forward-looking information so that investors can better
understand a company's future prospects and make informed investment
decisions.  This annual report contains such forward-looking statements
that set out anticipated results based on management's plans and
assumptions.  Words such as "anticipate," "estimate," "expects,"
"projects," and words and terms of similar substance used in connection
with any discussion of future operating or financial performance identify
these forward-looking statements.

     The Company cannot guarantee that any forward-looking statement will
be realized, although it believes it has been prudent in its plans and
assumptions.  Achievement of future results is subject to risks,
uncertainties and inaccurate assumptions.  Should known or unknown risks or
uncertainties materialize, or should underlying assumptions prove
inaccurate, actual results could vary materially from those anticipated,
estimated or projected.  Investors should bear this in mind as they
consider forward-looking statements.  Discussion of certain risks,
uncertainties and assumptions follow and are discussed under the heading
entitled "Cautionary Factors That May Affect Future Results" in Item 1.

     INFLATION
     Historically, inflation has not had a material adverse impact on the
Company.  The contracts pursuant to which the Company constructs and
operates its satellite PCC plants generally adjust pricing to reflect
increases in costs resulting from inflation.

     CYCLICAL NATURE OF CUSTOMERS' BUSINESSES
     The bulk of the Company's sales are to customers in the paper and
steel industries, which have historically been cyclical.  Both industries
encountered difficulties in 1998, which in most markets have been more
price-driven than volume-driven.  The pricing structure of some of our
long-term PCC contracts makes our PCC business less sensitive to declines
in the quantity of product purchased.  For this reason, and because of the
geographical diversification of our business, the Company's operating
results to date have not been materially affected by the difficult economic
environment.  However, we cannot predict the economic outlook in the 
countries in which we do business, nor in the key industries we serve. 
There can be no assurance that a

                               18
<PAGE>

recession, in some markets or worldwide, would not have a significant 
negative impact on the Company's financial position or results of
operations.

     RECENTLY ISSUED ACCOUNTING STANDARDS
     In February 1998, the Financial Accounting Standards Board issued SFAS
No. 132, "Employers' Disclosures about Pensions and Other Postretirement
Benefits," which revised employers' disclosures about pension and other
postretirement benefit plans.  It does not change the measurement or
recognition of those plans.  The statement is effective for fiscal years
beginning after December 15, 1997.  The adoption of this statement has no
impact on the consolidated financial statements.

     In March 1998, the American Institute of Certified Public Accountants
issued Statement of Position 98-1 ("SOP 98-1"), "Accounting for the Costs
of Computer Software Developed or Obtained for Internal Use."  The
statement is effective for fiscal years beginning after December 15, 1998. 
Earlier application is encouraged in fiscal years for which annual
financial statements have not been issued.  The statement defines which
costs of computer software developed or obtained for internal use are 
capitalized and which costs are expensed.  The Company adopted SOP 98-1 in
1998.  The adoption of SOP 98-1 did not materially affect the consolidated
financial statements.

     In April 1998, the American Institute of Certified Public Accountants
issued Statement of Position 98-5 ("SOP 98-5"), "Reporting on the Costs of
Start-Up Activities."  The statement is effective for fiscal years
beginning after December 15, 1998.  The statement requires costs of start-
up activities and organization costs to be expensed as incurred.  The
Company will adopt SOP 98-5 for calendar year 1999.  The adoption of SOP
98-5 will not materially affect the consolidated financial statements.

     In June 1998, the Financial Accounting Standards Board issued SFAS No.
133, "Accounting for Derivative Instruments and Hedging Activities."  The
statement establishes accounting and reporting standards for derivative
instruments and for hedging activities.  It requires that an entity
recognize all derivatives as either assets or liabilities in the statement
of financial position and measure those instruments at fair value.  The
statement is effective for all fiscal quarters of fiscal years beginning
after June 15, 1999.  The Company will adopt SFAS 133 by January 1, 2000. 
Adoption of SFAS 133 is not expected to have a material effect on the
consolidated financial statements.

     YEAR 2000
     The "year 2000 issue" arises because many computer programs and
electronically controlled devices denote years using only the last two
digits.  Because these programs and devices may fail to recognize the year
2000 correctly, calculations or other tasks that involve the year 2000 may
cause them to produce erroneous results or to fail altogether.  Like other
companies, the Company uses operating systems, applications and
electronically controlled devices that were produced by many different
vendors at different times, and many of which were not originally designed
to be year 2000 compatible.

     In 1996, the Company began the installation of new computer hardware
and software to improve the capability of the Company's information
systems, to harmonize the various information technology platforms in use,
and to centralize certain financial functions.  The project encompasses
corporate financial and accounting functions as well as manufacturing and
costing, procurement, planning and scheduling of production and
maintenance, and customer order management. 

     The Company has acquired much of the hardware and software required to
implement this project, and is currently bringing its domestic business
locations on to the new systems sequentially.  This is proceeding according
to schedule, and the Company expects the new systems to be operational in
all affected U.S. locations no later than the third quarter of 1999.  Other
U.S. manufacturing locations are currently year 2000 ready, with the
exception of three locations which are serviced by an information
technology system which is in the process of being upgraded.  This upgrade
is scheduled to be completed no later than the second quarter of 1999.

     Other preparations for the year 2000 are being carried out by the
relevant business units on a decentralized basis.  Information technology
systems outside the United States are in the process of being evaluated and
repaired or replaced as required.  The Company expects this process to be
completed by all non-U.S. locations no later than the third quarter of
1999.

     The Company's exposures to the year 2000 issue other than in the area
of information technology arise mostly with respect to process control
systems and instrumentation at the Company's manufacturing locations, and
in equipment used at customer locations.  Telephone and e-mail systems,
operating systems and applications in free-standing personal computers,
local area networks and site services such as electronic security systems
and elevators may also be affected.  A failure of these systems, which
interrupted the Company's ability to supply products to its customers,
could have a material adverse impact on its results of operations.  These 
issues are being addressed by the individual business units, by obtaining 
from vendors and service providers 

                                19
<PAGE>

either necessary modifications to the software or assurance that the system 
will not be disrupted by the year 2000 issue.  This process is expected 
to be completed no later than the third quarter of 1999.

     The Company expects to spend approximately $15-17 million, including
internal costs, before January 1, 2000, for new computer hardware and
software, other information technology upgrades and replacements, and
upgrades and replacements to non-IT systems worldwide.  These expenditures
will provide benefits to the Company which include but are not limited
to the achievement of year 2000 readiness.   Of this amount approximately 
$13 million had been expended as of December 31, 1998.  These expenditures 
will be capitalized or expensed in accordance with Statement of Position 
98-1, "Accounting for the Costs of Computer Software Developed or Obtained 
for Internal Use," which the Company has adopted.

     The Company expects to finance these expenditures solely from working
capital, and does not expect the total cost associated with its plans to
address the year 2000 issue to have a material adverse impact on its
financial position or results of operations.

     None of the Company's other information technology projects have been
delayed due to the implementation of year 2000 solutions.

     Like other companies, the Company relies on its customers for
revenues, on its suppliers for raw materials and on its other vendors for
products and services of all kinds; these third parties all face the year
2000 issue.  An interruption in the ability of any of them to provide goods
or services, or to pay for goods or services provided to them, or an
interruption in the business operations of customers causing a decline in
demand for the Company's products, could have a material adverse effect on
the Company in turn.  In particular, each of the Company's satellite PCC
plants relies on one customer for most or all of its business, and in many
cases for raw materials as well, so that a shutdown of the host paper
mill's operation would also cause the satellite PCC plant to shut down.

     The Company's divisions are communicating with their principal
customers and vendors about their year 2000 readiness, and expect this
process to be completed no later than the third quarter of 1999.  None of
the responses received to date suggests that any significant customer or
vendor expects the year 2000 issue to cause an interruption in its
operations, which would have a material adverse impact on the Company. 
However, because so many firms are exposed to the risk of failure not only
of their own systems, but of the systems of other firms, the ultimate
effect of the year 2000 issue is subject to a very high degree of
uncertainty.

     The Company believes that its preparations currently under way are
adequate to assess and manage the risks presented by the year 2000 issue,
and does not have a formal contingency plan at this time.

     The statements in this section regarding the effect of the year 2000
and the Company's responses to it are forward-looking statements.  They are
based on assumptions that the Company believes to be reasonable in light of
its current knowledge and experience.  A number of contingencies could
cause actual results to differ materially from those described in forward-
looking statements made by or on behalf of the Company.  Please see
"Cautionary Factors That May Affect Future Results" in Item 1.

     ADOPTION OF A COMMON EUROPEAN CURRENCY
     On January 1, 1999, eleven European countries adopted the euro as
their common currency.  From that date until January 1, 2002, debtors and
creditors may choose to pay or be paid in euros or in the former national
currencies.  On and after January 1, 2002, the former national currencies
will cease to be legal tender.

     The Company is currently reviewing its information technology systems
and upgrading them as necessary to ensure that it will be able to convert
among the former national currencies and the euro, and process transactions
and balances in euros, as required.  The Company has sought and received
assurances from the financial institutions with which it does business that
they are capable of receiving deposits and making payments both in euros
and in the former national currencies.  The Company does not expect that
adapting its information technology systems to the euro will have a
material impact on its financial condition or results of operations.  The
Company is also reviewing contracts with customers and vendors calling for
payments in currencies that are to be replaced by the euro, and intends to
complete in a timely way any required changes to those contracts.

     Adoption of the euro is likely to have competitive effects in Europe,
as prices that had been stated in different national currencies become
directly comparable to one another.  In addition, the adoption of a common
monetary policy throughout the countries adopting the euro can be expected
to have an effect on the economy of the region.  These competitive and
economic effects cannot be predicted with certainty, and there can be no 
assurance that they will not have a material effect on the Company's 
business in Europe.

                           20
<PAGE>

ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

     MARKET RISK
     The Company is exposed to various market risks, including the
potential loss arising from adverse changes in foreign currency exchange
rates.  The Company does not enter into derivatives or other financial
instruments for trading or speculative purposes.  When appropriate, the
Company enters into derivative financial instruments, such as forward
exchange contracts, to mitigate the impact of foreign exchange rate
movements on the Company's operating results.  The counterparties are major
financial institutions.  Such forward exchange contracts would not subject
the Company to additional risk from exchange rate movements because gains
and losses on these contracts would offset losses and gains on the assets,
liabilities and transactions being hedged.  There were no open forward
exchange contracts outstanding at December 31, 1998 or December 31, 1997.

ITEM 8.   FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

     The financial information required by Item 8 is contained in Item 14
of Part IV of this report.


ITEM 9.   CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE

     None.


                              PART III

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

     The information concerning the Company's Board of  Directors required
by this Item is incorporated herein by reference to the Company's Proxy
Statement.

     The information concerning the Company's Executive Officers required
by this Item is incorporated herein by reference to the Section in Part I
under the caption "Executive Officers of the Registrant."  

     The information regarding compliance with Section 16(a) of the
Securities Exchange Act of 1934  required by this Item is incorporated
herein by reference to the Company's Proxy Statement.


ITEM 11.  EXECUTIVE COMPENSATION

     The information appearing in the Company's Proxy Statement under the
caption "Compensation of Executive Officers," excluding the information
under the captions "Performance Graph" and "Report of the Compensation and
Nominating Committee on Executive Compensation," is incorporated herein by
reference.


ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

     The information appearing under the caption "Security Ownership of
Certain Beneficial Owners and Management as of February 1, 1999" set forth
in the Company's Proxy Statement is incorporated herein by reference.

                              21
<PAGE>

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

     The information appearing under the caption "Certain Relationships
and Related Transactions" set forth in the Company's Proxy Statement is
incorporated herein by reference.

     Under the terms of certain agreements entered into in connection with
the reorganization, Pfizer Inc. ("Pfizer") and its wholly-owned subsidiary
Quigley Company, Inc. ("Quigley") agreed to indemnify the Company against
certain liabilities being retained by Pfizer and its subsidiaries
including, but not limited to, pending lawsuits and claims, and any
lawsuits or claims  brought at any time in the future alleging damages or
injury from the use, handling of or exposure to any product sold by
Pfizer's specialty minerals business prior to the closing of the initial
public offering in October 1992.

     Pfizer and Quigley also agreed to indemnify the Company against any
liability arising from on-site remedial waste site claims and for other
claims that may be made in the future with respect to waste disposed of
prior to the closing of the initial public offering. Further, Pfizer and
Quigley agreed to indemnify the Company for 50% of the liabilities in
excess of $1 million up to $10 million that may arise or accrue within ten
years after the closing of the initial public offering with respect to
remediation of  on-site  conditions existing at the time of the closing of
the initial public offering. The Company will be responsible for the first
$1 million of such liabilities, 50% of all such liabilities in excess of $1
million up to $10 million, and all such liabilities in excess of $10
million.
                                       
                                       
                              PART IV
                                       
ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULE AND REPORTS ON FORM 8-K

(a)  The following documents are filed as part of this Report:

    1.   Financial Statements.  The following Consolidated Financial
         Statements of Minerals Technologies Inc. and Independent
         Auditors' Report are set forth on pages F-2 to F-20.
                
          
             Consolidated Balance Sheet as of December 31, 1998 and 1997

             Consolidated Statement of Income for the years ended
             December 31, 1998, 1997 and 1996

             Consolidated Statement of Cash Flows for the years ended
             December 31, 1998, 1997 and 1996

             Consolidated Statement of Shareholders' Equity for the years
             ended December 31, 1998, 1997 and 1996

             Notes to the Consolidated Financial Statements

             Independent Auditors' Report


     2.   Financial Statement Schedule.  The following financial statement
          schedule is filed as part of this Report:
                                                            Page
                                                            ----         
          Schedule II - Valuation and Qualifying Accounts   S - 1

     All other schedules for which provision is made in the applicable
accounting regulations of the Securities and Exchange Commission are not
required under the related instructions or are inapplicable and, therefore,
have been omitted.

     3.   Exhibits.  The following exhibits are filed as part of or
incorporated by reference into this Report.

     3.1       - Restated Certificate of Incorporation of the Company (1)
     3.2       - Restated By-Laws of the Company (2)
     3.3       - Certificate of Designations authorizing issuance and
                 establishing designations, preferences and rights of
                 Series A Junior Preferred Stock of the Company
     4.1       - Specimen Certificate of Common Stock (1)
     10.1      - Asset Purchase Agreement, dated as of September 28, 1992,
                 by and between Specialty Refractories Inc. and 
                 Quigley Company Inc. (3)
     10.1(a)   - Agreement dated October 22, 1992 between Specialty
                 Refractories Inc. and Quigley  Company Inc., amending
                 Exhibit 10.1 (4)

                              22
<PAGE>

     10.1(b)   - Letter Agreement dated October 29, 1992 between
                 Specialty Refractories Inc. and Quigley Company Inc.,
                 amending Exhibit 10.1 (4)

     10.2      - Reorganization Agreement, dated as of September 28,
                 1992, by and between the Company and Pfizer Inc (3)
     10.2(a)   - Letter Agreement dated October 29, 1992 between the
                 Company and Pfizer Inc, amending Exhibit 10.2 (4)
     10.3      - Asset Contribution Agreement, dated as of September 28,
                 1992, by and between Pfizer Inc and Specialty Minerals
                 Inc. (3)
     10.4      - Asset Contribution Agreement, dated as of September 28,
                 1992, by and between Pfizer Inc and Barretts Minerals Inc.
                 (3)
     10.4(a)   - Agreement dated October 22, 1992 between Pfizer
                 Inc, Barretts Minerals Inc. and Specialty Minerals
                 Inc., amending Exhibits 10.3 and 10.4 (4)
     10.5      - Form  of  Employment Agreement (1), together with
                 schedule relating to executed Employment Agreements
                 (2)
     10.6      - Form of  Severance Agreement (5), together with
                 schedule relating to executed Severance Agreements (2) 
     10.7      - Company Employee Protection Plan, as amended August
                 25, 1994 (5)
     10.8      - Company Nonfunded Deferred Compensation and Unit
                 Award Plan for Non-Employee Directors, as amended
                 January 25, 1996 (6)
     10.9      - Company Stock and Incentive Plan, as amended and restated 
                 as of August 28, 1998 (7)
     10.10     - Company Retirement Annuity Plan, as amended May 25, 1995
                 (6)
     10.11     - Company Nonfunded Supplemental Retirement Plan, as amended 
                 October 27, 1994 (8)
     10.12     - Company Savings and Investment Plan, as amended December
                 19, 1994 (9)
     10.13     - Company Nonfunded Deferred Compensation and Supplemental   
                 Savings Plan, as amended October 27, 1994 (8)
     10.14     - Rights Agreement, dated as of October 26, 1992, by
                 and between the Company and Chemical Bank, as Rights
                 Agent (1)
     10.14 (a) - First Amendment of Rights Agreement, dated as of November
                 2, 1998 by and between the Company and Chase Mellon
                 Shareholder Services L.L.C., amending Rights Agreement, 
                 dated as of October 26, 1992. (2)              
     10.15     - Grantor Trust Agreement, dated as of December 29, 1994,
                 between the Company and The Bank of New York, as Trustee (8)
     10.16     - Note Purchase Agreement, dated as of June 28, 1993, 
                 between the Company and Metropolitan Life Insurance
                 Company with respect to the Company's issuance of 
                 $65,000,000 in aggregate principal amount of its 6.04%
                 Guarantied Senior Notes Due June 11, 2000;together with   
                 a schedule regarding other contracts substantially
                 identical in all material respects to the foregoing (10)
     10.17     - Note Purchase Agreement, dated as of July 24, 1996, 
                 between the Company and Metropolitan Life Insurance
                 Company with respect to the Company's issuance
                 of $50,000,000 in aggregate principal amount of its
                 7.49% Guaranteed Senior Notes due July 24, 2006 (11)
     10.18     - Indenture, dated July 22, 1963, between the Cork
                 Harbour Commissioners and Roofchrome Limited (3)
     10.19     - Agreement of Lease, dated as of May 24, 1993, between the
                 Company and Cooke Properties Inc (10)
     10.20     - Sale of Business Agreement, dated 5 April 1998 among   
                 Minteq U.K. Limited, Specialty Minerals Inc., 
                 John & E. Sturge Limited and Rhodia Limited. (12)
     10.21     - Asset Sale Agreement, dated as of April 27, 1998 between
                 Specialty Minerals (Michigan) Inc. and Oglebay Norton 
                 Limestone Company. (12)
     21.1      - Subsidiaries of the Company
     23.1      - Report and Consent of Independent Auditors
     27        - Financial Data Schedule

     (1)  Incorporated by reference to exhibit so designated filed with the
          Company's Annual Report on Form 10-K for the year ended December
          31, 1997.
     (2)  Incorporated by reference to the exhibit so designated filed with
          the Company's Quarterly Report on Form 10-Q for the quarter ended
          September 27, 1998.
     (3)  Incorporated by reference to the exhibit so designated filed
          with the Company's Registration Statement on Form S-1
          (Registration No. 33-51292), originally filed on August 25,
          1992.
     (4)  Incorporated by reference to the exhibit so designated filed
          with the Company's Registration Statement on Form S-1
          (Registration No. 33-59510), originally filed on March 15,
          1993.
                              23
<PAGE>

     (5)  Incorporated by reference to the exhibit so designated filed
          with the Company's Annual Report on Form 10-K for the year
          ended December 31, 1996.
     (6)  Incorporated by reference to the exhibit so designated filed
          with the Company's Annual Report on Form 10-K for the year
          ended December 31, 1995.
     (7)  Incorporated by reference to the exhibit so designated filed
          with the Company's Registration Statement on Form S-8 (Registration
          No. 333-62739), originally filed September 2, 1998.
     (8)  Incorporated by reference to the exhibit so designated filed
          with the Company's Annual Report on Form 10-K for the year
          ended December 31, 1994.
     (9)  Incorporated by reference to the exhibit so designated filed
          with the Company's Quarterly Report on Form 10-Q for the
          quarter ended June 29, 1997.
     (10) Incorporated by reference to the exhibit so designated filed 
          with the Company's Quarterly Report on Form 10-Q for the 
          quarter ended July 4, 1993.
     
     (11) Incorporated by reference to the exhibit so designated filed 
          with the Company's Quarterly Report on Form 10-Q for the 
          quarter ended June 30, 1996.
     (12) Incorporated by reference to the exhibit so designated filed 
          with the Company's Quarterly Report on Form 10-Q for the
          quarter ended June 28, 1998.
 

(b)  Reports on Form 8-K
     There were no reports on Form 8-K filed by the Company during the
fourth quarter of 1998.

                             24
<PAGE>

                             SIGNATURES



     Pursuant to the requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, the Registrant has duly caused
this report to be signed on its behalf by the undersigned,
thereunto duly authorized.


                            Minerals Technologies Inc.


                            By: /s/ Jean-Paul Valles
                              ----------------------------          
                                Jean-Paul Valles
                                Chairman of the Board
                                and Chief Executive Officer

March 15, 1999

     Pursuant to the requirements of the Securities Exchange Act of
1934, this report has been signed below by the following persons on
behalf of the Registrant in the capacities and on the dates
indicated.



SIGNATURE                   TITLE                         DATE
- ---------                   -----                         ----



/s/Jean-Paul Valles
- -------------------                           

Jean-Paul Valles            Chairman of the Board         March 15, 1999
                             and Chief Executive Officer
                             (principal executive officer) 
                             and Director



/s/Neil M. Bardach
- ------------------
Neil M. Bardach             Vice President-Finance        March 15, 1999
                             and Chief Financial Officer; 
                             Treasurer (principal
                             financial officer) 

   



/s/ Michael A. Cipolla
- ----------------------
Michael A. Cipolla          Controller and Chief          March 15, 1999
                             Accounting Officer 
                             (principal accounting
                             officer)

                              25

<PAGE>

SIGNATURE                   TITLE                         DATE
- ---------                   -----                         ----



/s/John B. Curcio
- -----------------
John B. Curcio              Director                      March 15, 1999





/s/Steven J. Golub
- ------------------
Steven J. Golub             Director                      March 15, 1999






/s/William L. Lurie
- -------------------
William L. Lurie            Director                      March 15, 1999






/s/Paul M. Meister
- ------------------
Paul M. Meister             Director                      March 15, 1999





/s/Michael F. Pasquale
- ----------------------
Michael F. Pasquale         Director                      March 15, 1999





/s/William C. Steere, Jr.
- -------------------------
William C. Steere, Jr.      Director                      March 15, 1999

                              26

<PAGE>


      MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES

           --------------------------------------                         
                                          
         INDEX TO CONSOLIDATED FINANCIAL STATEMENTS


                                                                   Page
                                                                   ----

Audited Financial Statements:

   Consolidated Balance Sheet as of December 31, 1998 and 1997      F-2
  
   Consolidated Statement of Income for the years ended December
   31, 1998, 1997 and 1996                                          F-3

   Consolidated Statement of Cash Flows for the years ended
   December 31, 1998, 1997 and 1996                                 F-4

   Consolidated Statement of Shareholders'  Equity for the years
   ended December 31, 1998, 1997 and 1996                           F-5

   Notes to Consolidated Financial Statements                       F-6 
   
   Independent Auditors' Report                                     F-20


                                  
                                   
                              F-1
<PAGE>
                                   
        MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
                   CONSOLIDATED BALANCE SHEET
                     (thousands of dollars)
   
<TABLE>                                            
<CAPTION>                                                                   

                                          
                                                                   
                                                     DECEMBER 31, 
                                                     ------------
                                                   1998        1997 
                                                   ----        ----
<S>                                           <C>          <C>

                            ASSETS

Current assets:
 Cash and cash equivalents                        $20,697     $41,525
 Accounts receivable, less allowance 
  for doubtful accounts:
 1998--$3,720; 1997--$3,266                       110,192     108,146
 Inventories                                       63,657      61,166
 Other current assets                              16,284      15,745
                                                   ------      ------
   Total current assets                           210,830     226,582

Property, plant and equipment, 
   less accumulated depreciation and depletion    524,529     500,731
Other assets and deferred charges                  25,553      14,094
                                                   ------      ------
   Total assets                                  $760,912    $741,407
                                                 ========    ========

                 LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities:
 Short-term debt                                   $   --        $501
 Current maturities of long-term debt              13,511      13,488
 Accounts payable                                  32,084      33,163
 Income taxes payable                              17,081      11,101
 Accrued compensation and related items            14,329      15,923
 Other current liabilities                         20,933      20,042
                                                   ------      ------
   Total current liabilities                       97,938      94,218

Long-term debt                                     88,167     101,571
Accrued postretirement benefits                    19,376      19,746
Deferred taxes on income                           46,316      44,664
Other noncurrent liabilities                       19,952      14,211
                                                   ------      ------
   Total liabilities                              271,749     274,410
                                                  =======     =======
                                      

Commitments and contingent liabilities

Shareholders' equity:
 Preferred stock, without par value; 
 1,000,000 shares authorized; none issued              --          --
 Common stock at par, $0.10 par value; 
 100,000,000 shares authorized;
 issued 25,534,391 shares in 1998 and 
 25,370,402 shares in 1997                          2,553       2,537
 Additional paid-in capital                       144,088     139,113
 Retained earnings                                467,257     412,264
 Accumulated other comprehensive loss              (9,612)    (14,344)
                                                  -------     -------
                                                  604,286     539,570
 Less common stock held in treasury, at cost;
  3,720,717 shares in 1998 and 2,830,017
  shares in 1997                                  115,123      72,573
                                                  -------      ------
   Total shareholders' equity                     489,163     466,997
                                                  -------     -------

   Total liabilities and shareholders' equity    $760,912    $741,407
                                                 ========    ========

</TABLE>

See Notes to Consolidated Financial Statements which are an integral
part of these statements.

                                     
                              F-2
                                     
                                     
                                     
<PAGE>
           MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
                     CONSOLIDATED STATEMENT OF INCOME
              (thousands of dollars, except per share data)
 

<TABLE>                                                                     
  
<CAPTION>
                                         YEAR ENDED DECEMBER 31,
                                         -----------------------     
                                       1998       1997       1996 
                                     --------   --------   ---------
<S>                                <C>        <C>         <C>

Net sales                            $609,193   $602,335    $555,988
Operating costs and expenses:
 Cost of goods sold                   416,558    424,612     396,345
 Marketing, distribution and 
 administrative expenses               79,150     77,104      72,485
 Research and development expenses     21,038     20,391      19,740
                                       ------     ------      ------

Income from operations                 92,447     80,228      67,418
                                       ------     ------      ------

 Interest income                        2,146      1,765         966
 Interest expense                      (5,918)    (7,208)     (5,899)
 Other income (deductions)             (2,333)    (2,597)        139
                                      -------    -------     -------
Non-operating deductions, net          (6,105)    (8,040)     (4,794)
                                      -------     -------    -------

Income before provision for taxes on 
 income and minority interests         86,342     72,188      62,624
Provision for taxes on income          27,360     23,104      19,488
Minority interests                      1,758     (1,228)         39
                                      -------    -------      ------
Net income                            $57,224    $50,312     $43,097
                                      =======    =======      ======

Basic earnings per share                $2.57      $2.23       $1.91
                                      =======    =======      ======

Diluted earnings per share              $2.50      $2.18       $1.86
                                      =======    =======      ======

</TABLE>

See Notes to Consolidated Financial Statements which are an integral
part of these statements.


                                     
                              F-3
<PAGE>

           MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
                    CONSOLIDATED STATEMENT OF CASH FLOWS              
                          (thousands of dollars)

<TABLE>
<CAPTION>

                                                 YEAR ENDED DECEMBER 31,
                                             -------------------------------  
                                              1998         1997       1996 
                                             -------      -------    -------  
<S>                                       <C>           <C>         <C>

OPERATING ACTIVITIES
Net income                                   $57,224      $50,312    $43,097
Adjustments to reconcile net income 
 to net cash provided by operating 
 activities:
 Depreciation, depletion and amortization     53,084       52,936     46,183
 Loss on disposal of property, plant and 
 equipment                                     1,650          947        786
 Deferred income taxes                         1,212        3,689      3,361
 Other                                         2,304         (681)    (1,500)
Changes in operating assets and liabilities,
 net of effects of acquisition and 
 disposition:
   Accounts receivable                          (184)     (11,195)    (4,699)
   Inventories                                (1,744)       7,512     (6,977)
   Other current assets                         (699)      (1,802)    (7,672)
   Accounts payable and accrued 
    liabilities                               (3,442)      14,506     (2,744)
   Income taxes payable                        6,699        4,564       (269)
   Other                                         850         (174)       382
                                             -------       ------    -------
Net cash provided by operating
 activities                                  116,954      120,614     69,948
                                             -------      -------     ------

INVESTING ACTIVITIES
Purchases of property, plant and
 equipment                                   (82,450)     (77,331)   (97,308)
Proceeds from disposal of property, plant 
and equipment                                    556        3,916      1,073
Acquisition of business                      (34,130)          --         --
Proceeds from disposition of business         32,357           --         --
Other investing activities                    (1,954)          --         --
                                             -------      -------    -------
Net cash used in investing activities        (85,621)     (73,415)   (96,235)
                                             -------      -------    -------

FINANCING ACTIVITIES
Proceeds from issuance of short-term and 
long-term debt                                   743       20,089    111,659
Repayment of short-term and
 long-term debt                              (14,380)     (34,679)   (77,237)
Purchase of common shares for treasury       (42,550)      (6,688)    (5,885)
Cash dividends paid                           (2,231)      (2,258)    (2,262)
Proceeds from issuance of stock under  
option plan                                    4,091        2,436      2,466
Equity and debt proceeds from minority 
interests                                      2,405        3,214      2,500
                                             -------      -------    -------
Net cash (used in)/provided by
 financing activities                        (51,922)     (17,886)    31,241
                                             -------      -------    -------

Effect of exchange rate changes on cash 
 and cash equivalents                           (239)      (3,234)      (826)

Net increase (decrease) in cash and 
 cash equivalents                            (20,828)      26,079      4,128
Cash and cash equivalents at beginning 
 of year                                      41,525       15,446     11,318
                                             -------       ------     ------
Cash and cash equivalents at
 end of year                                 $20,697      $41,525    $15,446
                                             =======      =======    =======

</TABLE>

See Notes to Consolidated Financial Statements which are an integral
part of these statements.


                              F-4

<PAGE>

            MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
               CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
                              (In thousands)
                                                                            
<TABLE>
<CAPTION>                                                                
                                                         
                           Common Stock    Additional 
                           ------------    Paid-in      Retained
                       Shares    Par Value Capital      Earnings
                       ------    --------- ----------   --------
<S>                   <C>        <C>        <C>         <C>
Balance as of
 January 1, 1996       25,153     $2,515    $133,221    $323,375
                       ------     ------    --------    --------
Comprehensive income:
Net income                 --         --          --      43,097   
Currency translation 
 adjustment                --         --          --          --     
Unrealized holding 
 gains, net of tax         --         --          --          -- 
                       ------     ------     --------    --------       
   
   Total comprehensive 
    income                 --         --          --       43,097
                       ------     ------     --------    --------       

Dividends declared         --         --           --      (2,262)
Employee benefit 
 transactions             107         11        2,455          --
Purchase of            
 common stock              --         --           --          --
                       ------     ------     --------    --------     

Balance as of                                                       
 December 31, 1996     25,260      2,526      135,676     364,210
                       ------     ------    ---------     ------- 
Comprehensive income:                           
Net income                 --         --           --      50,312
Currency translation 
 adjustment                --         --           --          --
Unrealized holding 
 losses, net of tax        --         --           --          --
Minimum pension 
 liability adjustment      --         --           --          --
                       ------     ------    ---------     -------
   Total comprehensive 
   income                  --         --           --      50,312
                       ------     ------   ----------     -------

Dividends declared         --         --           --      (2,258)    
Employee benefit 
 transactions             110         11        2,837          --
Income tax benefit 
 arising from employee 
 stock option plans        --         --          600          -- 
Purchase of 
 common stock              --         --           --          --
                       ------     ------   ----------     -------

Balance as of
 December 31, 1997     25,370      2,537      139,113     412,264
                       ------      ------  ----------    --------
Comprehensive income:                                     
Net income                 --         --           --      57,224
Currency translation 
 adjustment                --         --           --          --
Unrealized holding                                             
 losses, net of tax        --         --           --          --
                       ------     ------   ----------    --------
   Total comprehensive 
   income                  --         --           --      57,224
                       ------     ------   ----------    --------
                                           

Dividends declared         --         --           --      (2,231)
Employee benefit 
 transactions             164         16        4,075          -- 
Income tax benefit 
 arising from employee 
 stock option plans        --         --          900          --
Purchase of 
 common stock              --         --           --          --
                       ------     ------   ----------    -------- 
Balance as of
 December 31, 1998     25,534     $2,553     $144,088    $467,257
                       ======     ======   ==========   =========
</TABLE>


(Table continues...)

            MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
               CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
                             (In thousands)

<TABLE>
<CAPTION>                   
                     Accumulated               
                     Other              Treasury Stock
                     Comprehensive     -----------------
                     Income (Loss)     Shares       Cost        Total
                     -------------   ---------   ---------    --------
<S>                  <C>            <C>         <C>          <C>
                  
Balance as of
 January 1, 1996       $17,042        (2,500)    $(60,000)    $416,153
                       -------        ------     --------     --------
Comprehensive income:                     
Net income                  --            --           --       43,097 
Currency translation 
 adjustment             (5,371)           --           --       (5,371)
Unrealized holding 
 gains, net of tax          52            --           --           52
                       -------        ------    ---------     --------
   Total comprehensive 
    income              (5,319)           --           --       37,778
                       -------        ------    ---------     --------

Dividends declared          --            --           --       (2,262)
Employee benefit 
 transactions               --            --           --        2,466
Purchase of  
 common stock               --          (160)      (5,885)      (5,885)
                       -------        ------    ---------     --------

Balance as of
 December 31, 1996      11,723        (2,660)     (65,885)     448,250
                       -------        ------    ---------     --------
Comprehensive income:
Net income                  --            --           --       50,312
Currency translation 
 adjustment            (25,016)           --           --      (25,016)
Unrealized holding 
 losses, net of tax        (50)           --           --          (50)
Minimum pension                                 
 liability adjustment   (1,001)           --           --       (1,001)
                       -------        ------    ---------     --------
   Total comprehensive 
    income             (26,067)          --            --       24,245
                       -------       ------     ---------     --------

Dividends declared          --           --            --       (2,258)     
 
Employee benefit 
 transactions               --           --            --        2,848
Income tax benefit 
 arising from employee 
 stock option plans         --           --            --          600
Purchase of common stock    --         (170)       (6,688)      (6,688)
                        ------       ------     ---------     --------   

Balance as of
 December 31, 1997     (14,344)      (2,830)      (72,573)     466,997
                       -------       ------     ---------     --------
Comprehensive income:
Net income                  --           --            --       57,224
Currency translation 
 adjustment              4,759           --            --        4,759
Unrealized holding 
 losses, net of tax        (27)          --            --          (27)
                       -------       ------     ---------     --------
   Total comprehensive 
    income               4,732           --            --       61,956
                       -------       ------     ---------     --------      

Dividends declared          --           --            --       (2,231)
Employee benefit 
 transactions               --           --            --        4,091
Income tax benefit 
 arising from employee       
 stock option plans         --           --            --          900
Purchase of 
 common stock               --         (891)      (42,550)     (42,550)
                       -------       ------     ---------     --------

Balance as of
 December 31, 1998     $(9,612)      (3,721)    $(115,123)    $489,163
                       =======       ======     =========     ========

</TABLE>
See Notes to Consolidated Financial Statements which are an integral part
of these statements.
 
                                     F-5
<PAGE>

           MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
               NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

    BASIS OF PRESENTATION
    The accompanying consolidated financial statements include
the accounts of Minerals Technologies Inc. (the "Company")
and its wholly and majority owned subsidiaries.  All
intercompany balances and transactions have been eliminated
in consolidation.  

     USE OF ESTIMATES
     The Company employs accounting policies that are in accordance with 
generally accepted accounting principles in the United States and require 
management to make estimates and assumptions relating to the reporting of 
assets and liabilities and the disclosure of contingent liabilities at
the date of the financial statements.  Actual results could differ from 
those estimates.

     BUSINESS  
     The Company is a resource- and technology-based company that develops, 
produces and markets on a worldwide basis a broad range of specialty 
mineral, mineral-based and synthetic mineral products.  The Company's 
products are used in manufacturing processes of the paper and steel 
industries, as well as by the building materials, polymers, ceramics, paints
and coatings, glass and other manufacturing industries.

     CASH EQUIVALENTS
     The Company considers all highly liquid investments with maturities 
of three months or less at the date of purchase to be cash equivalents.  
Cash equivalents amounted to $4.1 million and $8.6 million at December 31, 
1998 and 1997, respectively.

     INVENTORIES
     Inventories are valued at the lower of cost or market. Cost is 
determined by the first-in, first-out (FIFO) method. 

     PROPERTY, PLANT AND EQUIPMENT
     Property, plant and equipment are recorded at cost. Significant 
improvements are capitalized. In general, the straight-line method of 
depreciation is used for financial reporting purposes and accelerated 
methods are used for U.S. and certain foreign tax reporting purposes.  
The annual rates of depreciation are 4%-8% for buildings, 8%-12% for 
machinery and equipment and 8%-12% for furniture and fixtures.

     Depletion of the mineral and quarry properties is provided
on a unit-of-extraction basis as the related materials are mined for 
financial reporting purposes and on a percentage depletion basis for tax 
purposes. 

     Mining costs associated with waste gravel and rock removal
in excess of the expected average life of mine stripping ratio are deferred.  
These costs are charged to production on a unit-of-production basis when 
the ratio of waste to ore mined is less than the average life of mine 
stripping ratio.

     GOODWILL
     Goodwill represents the excess of purchase price and related costs 
over the value assigned to the net tangible assets of businesses acquired.  
Goodwill is amortized on a straight-line basis over 25 years.  Periodically, 
the Company reviews the recoverability of goodwill.  The measurement of
possible impairment is based primarily on the ability to recover the balance 
of the goodwill from expected future operating cash flows on an undiscounted 
basis.  In management's opinion, no material impairment existed at
December 31, 1998. 

     FOREIGN CURRENCY
     The assets and liabilities of most of the Company's international 
subsidiaries are translated into U.S. dollars using current exchange rates 
at the respective balance sheet date.  The resulting translation adjustments 
are recorded in the currency translation adjustment account in shareholders'
equity.  Income statement items are generally translated at average exchange 
rates prevailing during the period.  Other foreign currency gains and losses 
are included in net income. 

    International subsidiaries operating in highly inflationary economies 
translate non-monetary assets at historical rates, while net monetary assets 
are translated at current rates, with the resulting translation adjustments 
included in net income. 


                                  F-6
<PAGE>


           MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
               NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     INCOME TAXES
     Income taxes are provided for based on the asset and liability method 
of accounting pursuant to Statement of Financial Accounting Standards 
No. 109, "Accounting for Income Taxes" ("SFAS 109").   Under SFAS 109, 
deferred tax assets and liabilities are recognized for the estimated 
future tax consequences attributable to differences between the financial 
statement carrying amounts of existing assets and liabilities and their 
respective tax bases. Deferred tax assets and liabilities are measured 
using enacted tax rates in effect for the year in which those temporary 
differences are expected to be recovered or settled. Under SFAS 109, 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. 

     The accompanying financial statements generally do not include a 
provision for U.S. income taxes on international subsidiaries' unremitted 
earnings which, for the most part, are expected to be reinvested overseas. 

     STOCK-BASED COMPENSATION
     The Company has adopted Statement of Financial Accounting
Standards No. 123, "Accounting for Stock Based Compensation"
("SFAS 123"), which requires expanded disclosures of stock-
based compensation arrangements with employees.  SFAS No. 123
establishes an alternative method of accounting for stock-
based compensation awarded to employees which provides for
the recognition of compensation cost to be measured based on
the fair value of the equity instrument awarded.  The
Company, however, has elected to continue to recognize
compensation cost based on the intrinsic value of the equity
instrument awarded as promulgated in Accounting Principles
Board Opinion No. 25, "Accounting for Stock Issued to
Employees."  The Company has disclosed below under "Capital
Stock -- Stock and Incentive Plan" the pro forma effect of
the fair value method on net income and earnings per share.

     POSTRETIREMENT BENEFITS
     The Company accrues the cost of postretirement benefits
during the employee's active working career as required by
Statement of Financial Accounting Standards No. 106,
"Employers' Accounting for Postretirement Benefits Other Than
Pensions" ("SFAS 106").

     EARNINGS PER SHARE
     Basic earnings per share have been computed based upon the weighted 
average number of common shares outstanding during the period. 

     Diluted earnings per share have been computed based upon
the weighted average number of common shares outstanding during the period 
assuming the issuance of common shares for all dilutive potential common 
shares outstanding.

INCOME TAXES
 
     Income before provision for taxes, by domestic and foreign
source is as follows: 

<TABLE>
<CAPTION>

    THOUSANDS OF DOLLARS                  1998        1997        1996
                                          ----        ----        ----
    <S>                               <C>        <C>         <C>

    Domestic                           $59,428     $48,746     $47,410
    Foreign                             26,914      23,442      15,214
                                       -------     -------     -------
    Total income before provision 
     for income taxes                  $86,342     $72,188     $62,624
                                       =======     =======     =======
</TABLE>


                                  F-7
<PAGE>

           MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
               NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The provision for taxes on income consists of the following:

<TABLE>
<CAPTION>

     THOUSANDS OF DOLLARS             1998     1997    1996
                                      ----     ----    ----
    <S>                           <C>       <C>     <C>
     DOMESTIC
     Taxes currently payable                          
     Federal                       $15,714   $7,862  $7,845
     State and local                 3,084    2,938   3,593
     Deferred income taxes            (524)   4,634   3,291
                                   -------   ------  ------
     Domestic tax provision         18,274   15,434  14,729
                                   -------   ------  ------

     FOREIGN
     Taxes currently payable         7,350    8,615   4,689
     Deferred income taxes           1,736     (945)     70
                                   -------   ------  ------
     Foreign tax provision           9,086    7,670   4,759
                                   -------   ------  ------
     Total tax provision           $27,360  $23,104 $19,488
                                   =======  ======= =======
</TABLE>


     The provision for taxes on income shown in the previous table
is classified based on the location of the taxing authority,
regardless of the location in which the taxable income is
generated.

     The major elements contributing to the difference between the
U.S. federal statutory tax rate and the consolidated
effective tax rate are as follows: 

<TABLE>
<CAPTION>

PERCENTAGES                                    1998    1997   1996
                                               ----    ----   ----
<S>                                          <C>     <C>     <C>
U.S. statutory tax rate                        35.0%   35.0%  35.0%
Depletion                                      (3.5)   (3.7)  (5.5)
Difference between tax provided on foreign
 earnings and the U.S. statutory rate          (0.4)   (0.8)  (0.9)
State and local taxes                           2.0     2.9    3.9
Tax credits                                    (2.2)   (0.8)  (2.4)
Other                                           0.8    (0.6)   1.0
                                               ----    ----   ----
Consolidated effective tax rate                31.7%   32.0%  31.1%
                                               ====    ====   ====
</TABLE>

     The Company believes that its accrued liabilities are
sufficient to cover its U.S. and foreign tax contingencies. 
The tax effects of temporary differences that give rise to
significant portions of the deferred tax assets and deferred
tax liabilities are presented below: 

<TABLE>
<CAPTION>

THOUSANDS OF DOLLARS                              1998        1997
                                                  ----        ----
<S>                                            <C>        <C>
Deferred tax assets:
Pension and postretirement benefits cost
 reported for financial statement purposes
 in excess of amounts deductible for
 tax purposes                                    $7,245     $7,196
State and local taxes                             2,594      2,789
Accrued expenses                                  2,812      3,121
Alternative minimum tax                               -      3,686
Other                                             3,749      2,060
                                                 ------     ------
Total deferred tax assets                        16,400     18,852
                                                 ------     ------

Deferred tax liabilities:
Plant and equipment, principally
 due to differences in depreciation              60,956     61,093
Other                                             1,760      2,423
                                                 ------     ------
Total deferred tax liabilities                   62,716     63,516
                                                 ------     ------
Net deferred tax liability                      $46,316    $44,664
                                                =======    =======
</TABLE>

                                  F-8
<PAGE>

           MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
               NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


     A valuation allowance for deferred tax assets has not been
recorded since management believes it is more likely than not
that the existing net deductible temporary differences will
reverse during periods in which the Company generates net
taxable income.

     Net cash paid for income taxes was $18.3 million, $14.2
million and $15.4 million for the years ended December 31,
1998, 1997 and 1996, respectively.

FOREIGN OPERATIONS

     The Company has not provided for U.S. federal and foreign
withholding taxes on $69.0 million of foreign subsidiaries'
undistributed earnings as of December 31, 1998 because such
earnings, for the most part, are intended to be reinvested
overseas.  To the extent the parent  company has received
foreign earnings as dividends, the foreign taxes paid on
those earnings have generated tax credits which have
substantially offset related U.S. income taxes.  On
repatriation, certain foreign countries impose withholding
taxes.  The amount of withholding tax that would be payable
on remittance of the entire amount of undistributed earnings
would approximate $2.0 million.


     Net foreign currency exchange gains (losses), included in
other income (deductions) in the Consolidated Statement of
Income, were $(932,000), $(1,721,000) and $296,000 for the
years ended December 31, 1998, 1997 and 1996, respectively.

INVENTORIES

     The following is a summary of inventories by major category: 
<TABLE>
<CAPTION>
    THOUSANDS OF DOLLARS                 1998       1997
                                         ----       ----
     <S>                             <C>        <C>
    Raw materials                     $21,681    $19,605
    Work in process                     5,483      5,858
    Finished goods                     19,650     19,812
    Packaging and supplies             16,843     15,891
                                      -------    -------
    Total inventories                 $63,657    $61,166
                                      =======    =======
</TABLE>

PROPERTY, PLANT AND EQUIPMENT

     The major categories of property, plant and equipment and
accumulated depreciation and depletion are presented below:
<TABLE>
<CAPTION>

     THOUSANDS OF DOLLARS                1998        1997
                                         ----        ----
     <S>                            <C>         <C> 
     Land                             $21,224     $22,697
     Quarries/mining properties        19,256      24,148
     Buildings                        118,223     107,865
     Machinery and equipment          642,767     598,190
     Construction in progress          52,709      47,594
     Furniture and fixtures 
      and other                        52,040      49,775
                                      -------     -------
                                      906,219     850,269
                                      =======     =======
     Less: Accumulated depreciation 
      and depletion                   381,690     349,538
                                      -------     -------
                                     $524,529    $500,731
                                      =======     =======

</TABLE>



                                  F-9
<PAGE>

         MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


ACQUISITION AND DIVESTITURE

     On April 30, 1998 the Company acquired, for approximately
$34 million in cash, a precipitated calcium carbonate (PCC)
manufacturing facility in the United Kingdom from Rhodia
Limited.  This acquisition allows the Company to establish a
base for its specialty PCC business in Europe.  The
transaction was accounted for as a purchase.  The purchase
price exceeded the fair value of net assets acquired by
approximately $8 million, which is being amortized on a
straight-line basis over 25 years.

     On April 28, 1998 the Company sold its limestone 
operation in Port Inland, Michigan, to Oglebay Norton Company 
for cash and receivables approximating $34 million.  The sales 
price approximated the net book value of the assets.

FINANCIAL INSTRUMENTS AND CONCENTRATIONS OF CREDIT RISK 

     The following methods and assumptions were used to estimate
the fair value of each class of financial instrument:

     CASH AND CASH EQUIVALENTS, ACCOUNTS RECEIVABLE AND PAYABLE, AND ACCRUED 
LIABLILITIES:
     The carrying amounts approximate fair value because of the short 
maturity of these instruments.

     AVAILABLE-FOR-SALE SECURITIES:
     The available-for-sale securities are presented in accordance
with SFAS No. 115, "Accounting for Certain Investments in Debt and Equity 
Securities."  

     The fair values are based on quoted market prices and are as follows:

<TABLE>
<CAPTION> 

                   1998              1997               1996 
              -----------------  -----------------  ------------------
THOUSANDS     MARKET GROSS       MARKET GROSS       MARKET GROSS 
OF DOLLARS    VALUE  UNREALIZED  VALUE  UNREALIZED  VALUE  UNREALIZED
                     HOLDING            HOLDING            HOLDING 
                     GAINS              GAINS              GAINS 
              ------ ----------  ------ ----------  ------ ----------
<S>          <C>     <C>        <C>     <C>        <C>     <C>
Common Stock  $389     $174       $424    $230       $558     $340

</TABLE>


     The unrealized holding gains, net of taxes, were $86,000,
$113,000 and $163,000, respectively, at December 31, 1998,
1997 and 1996 and are included in accumulated other
comprehensive loss in the statement of shareholders' equity.

     SHORT-TERM DEBT AND LIABILITIES:
     The carrying amounts of short-term debt and other liabilities
approximate fair value because of the short maturity of these
instruments.

     LONG-TERM DEBT:
     The fair value of the long-term debt of the Company is
estimated based on the quoted market prices for that debt or
similar debt which approximates the carrying amount.

     FORWARD EXCHANGE CONTRACTS:
     The fair value of forward exchange contracts (used for
hedging purposes) is estimated by obtaining quotes from
brokers.

     When appropriate, the Company enters into forward exchange
contracts to mitigate the impact of foreign exchange rate
movements on the Company's operating results.  It does not
engage in speculation.  Such foreign exchange contracts would
not subject the Company to additional risk from exchange rate
movements because gains and losses on these contracts would
offset losses and gains on the assets, liabilities and
transactions being hedged.  There were no open forward
exchange contracts outstanding at December 31, 1998 or
December 31, 1997.

     CREDIT RISK:
     Substantially all of the Company's accounts receivable are
due from companies in the paper, construction and steel
industries. Credit risk results from the possibility that a
loss may occur from the failure of another party to perform
according to the terms of the contract. The Company regularly
monitors the credit risk exposures and takes steps to
mitigate the likelihood of these exposures resulting in
actual loss.  The Company's extension of credit is based on
an evaluation of the customer's financial condition and
collateral is generally not required. Credit losses are
provided for in the financial statements and consistently
have been within management's expectations.

                                F-10

<PAGE>

        MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


LONG-TERM DEBT AND COMMITMENTS

     The following is a summary of long-term debt: 

<TABLE>
<CAPTION>

     THOUSANDS OF DOLLARS                                1998         1997
                                                         ----         ----
     <S>                                             <C>          <C>
     7.75% Economic Development Revenue  
      Bonds Series 1990 Due 2010 (secured)              $4,600      $4,600
     Variable/Fixed Rate Industrial 
     Development Revenue Bonds Due 2009                  4,000       4,000
     Variable/Fixed Rate Industrial 
     Development Revenue Bonds Due April 1, 2012         7,545       7,545
     Variable/Fixed Rate Industrial 
     Development Revenue Bonds Due August 1, 2012        8,000       8,000
     6.04% Guarantied Senior Notes Due June 11, 2000    26,000      39,000
     7.49% Guaranteed Senior Notes Due July 24, 2006    50,000      50,000
     Other borrowings                                    1,533       1,914
                                                        ------      ------
                                                       101,678     115,059
     Less: Current maturities                           13,511      13,488
                                                        ------      ------
     Long-term debt                                    $88,167    $101,571
                                                       =======    ========
</TABLE>

     The 7.75% Economic Development Revenue Bonds Due 2010 are
tax-exempt, 20-year instruments issued to finance a PCC plant
in Eastover, South Carolina. The bonds are dated September 1,
1990. They are currently subject to redemption at face value
at the option of the issuer and to redemption at the option
of the holder in the event of a downgrade in the rating of
the bonds below "A."  Pfizer Inc is a guarantor of these bonds.

     The Variable/Fixed Rate Industrial Development Revenue Bonds
Due 2009 are tax-exempt 15-year instruments issued to finance
the expansion of  a PCC plant in Selma, Alabama.  The bonds
are dated November 1, 1994, and provide for an optional put
by the holder (during the Variable Rate Period) and a
mandatory call by the issuer.  The bonds  bear interest at
either a variable rate or fixed rate, at the option of the
Company.  Interest is payable semi-annually under the fixed
rate option and monthly under the variable rate option.   The
Company has selected the variable rate option on these
borrowings and the average interest rate was approximately
3.7% for the year ending December 31, 1998.

     The Variable/Fixed Rate Industrial Development Revenue Bonds
due April 1, 2012 are tax-exempt 15-year instruments and were
issued on April 1, 1997 to finance the construction of a PCC
plant in Jackson, Alabama.  The bonds bear interest at either
a variable rate or fixed rate, at the option of the Company. 
Interest is payable semi-annually under the fixed rate option
and monthly under the variable rate option.  The Company has
selected the variable rate option on these borrowings and the
average interest rate was approximately 3.7% for the year
ending December 31, 1998.

     On August 4, 1997, the Company redeemed $1,455,000 of the
Variable/Fixed Rate Industrial Development Revenue Bonds due
April 1, 2012.  This represented the unused portion of the
original bond issuance proceeds received on April 1, 1997 to
finance the construction of a PCC plant in Jackson, Alabama.

     The Variable/Fixed Rate Industrial Development Revenue Bonds
due August 1, 2012 are tax-exempt 15-year instruments that
were issued on August 1, 1997 to finance the construction of
a PCC plant in Courtland, Alabama.  The bonds bear interest
at either a variable rate or fixed rate, at the option of the
Company.  Interest is payable semi-annually under the fixed
rate option and monthly under the variable rate option.  The
Company has selected the variable rate option on these
borrowings and the average interest rate was approximately
3.7% for the year ending December 31, 1998.

     On June 28, 1993, through a private placement, the Company
issued $65 million of 6.04% Guarantied Senior Notes (the
"Notes") due June 11, 2000.  The proceeds from the sale of
the Notes were used to finance the purchase of 2.5 million
shares of treasury stock, and for other corporate purposes. 
Interest on the Notes is payable semi-annually.

     On July 24, 1996, through a private placement, the Company
issued $50 million of 7.49% Guaranteed Senior Notes due July
24, 2006.  The proceeds from the sale of the notes were used
to refinance a portion of the short-term commercial bank debt
outstanding.  These notes rank pari passu with the Company's
other unsecured senior obligations.  No required principal
payments are due until July 24, 2006.  Interest on the notes
is payable semi-annually.


                                F-11
<PAGE>

         MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


    The aggregate maturities of long-term debt are as follows:
1999 - $13.5 million; 2000 - $13.5 million; 2001 - $0.5
million; 2002 - $-- million; 2003 - $-- million; thereafter -
$74.2 million.

    The Company has approximately $110 million in uncommitted,
short-term bank credit lines.  There were no borrowings on
these credit lines on December 31, 1998 and December 31,
1997. 

     During 1998, 1997 and 1996, respectively, the Company
incurred interest costs of $7,047,000, $8,198,000 and
$8,417,000 including $1,129,000, $990,000 and $2,518,000,
respectively, which were capitalized.  Interest paid
approximated the incurred interest costs. 

BENEFIT PLANS

     PENSION PLANS AND OTHER POSTRETIREMENT BENEFIT PLANS
     The Company and its subsidiaries have pension plans
covering substantially all eligible employees on a
contributory or non-contributory basis.

     The funded status of the Company's pension plans and other
postretirement benefit plans at December 31, 1998 and 1997 is
as follows:

<TABLE>
<CAPTION>
                                     PENSION BENEFITS       OTHER BENEFITS
                                     ----------------       --------------
MILLIONS OF DOLLARS                 1998         1997       1998      1997
                                    ----         ----       ----      ----
<S>                            <C>            <C>          <C>        <C>
CHANGE IN BENEFIT OBLIGATION
Benefit obligation 
 at beginning of year              $80.4        $71.6       $14.0    $12.2
Service cost                         4.8          4.1         0.9      0.8
Interest cost                        5.7          5.2         1.0      0.9
Amendments                           4.0           --          --       --
Actuarial gain                       7.4          4.9         1.5      0.4
Benefits paid                      (10.4)        (4.6)       (0.6)    (0.3)
Other                                0.8         (0.8)         --       --
                                    ----         ----        ----     ----
Benefit obligation 
 at end of year                    $92.7        $80.4       $16.8    $14.0
                                   =====        =====       =====    =====

CHANGE IN PLAN ASSETS
Fair value of plan assets 
 at beginning of year              $84.6        $70.4        $ --     $ --
Actual return on 
 plan assets                        13.2         12.6          --       --
Employer contribution                3.9          5.7         0.6      0.3
Plan participants' 
 contributions                       0.7          0.7          --       --
Benefits paid                      (10.4)        (4.6)       (0.6)    (0.3)
Other                                 --         (0.2)         --       --
                                   -----        -----       -----    -----
Fair value of plan assets 
 at end of year                    $92.0        $84.6        $ --     $ --
                                   =====        =====       =====    =====

Funded status                     $(0.7)        $4.2       $(16.8)  $(14.0)
Unrecognized transition 
 amount                             2.3          3.3           --       --
Unrecognized net  
 actuarial loss                    (4.0)        (6.3)         2.8      1.4
Unrecognized prior 
 service cost                       6.5          2.9         (5.4)    (7.1)
                                  -----        -----        -----    -----
Prepaid (accrued) 
 benefit cost                      $4.1         $4.1       $(19.4)  $(19.7)
                                   ====         ====       ======   ======

Amounts recognized in the 
  consolidated balance sheet
  consist of:
Prepaid benefit cost              $10.5         $9.5         $ --     $ --
Accrued benefit liabilities        (9.4)        (7.3)       (19.4)   (19.7)
Intangible asset                    2.0          0.9           --       --
Accumulated other  
 comprehensive loss                 1.0          1.0           --       --
                                   ----         ----          ----    ----
Net amount recognized              $4.1         $4.1        $(19.4) $(19.7)
                                   ====         ====        ======  ======

</TABLE>

                              F-12
<PAGE>

         MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


     The weighted average assumptions used in the accounting for the 
pension benefit plans and other benefit plans as of December 31 
are as follows:

                                         1998         1997
                                         ----         ----
Discount rate                            6.75%        7.25% 
Expected return on plan assets           9.00%        9.25% 
Rate of compensation increase            4.00%        4.25%

     For measurement purposes, a health care cost trend rate of
approximately 9.8% for pre-age-65 benefits and 8.1% trend for post-age-65 
benefits were used.  These trend rates were assumed to decrease gradually to 
5.3% for 2005 and remain at that level thereafter.

     The components of net periodic benefit costs are as follows:

<TABLE>
<CAPTION>
                                PENSION BENEFITS         OTHER BENEFITS
                                ----------------         --------------
MILLIONS OF DOLLARS          1998    1997    1996      1998   1997   1996
                             ----    ----    ----      ----   ----    ---
 <S>                        <C>      <C>     <C>       <C>    <C>    <C>
Service cost                 $4.8    $4.1    $4.6      $0.9   $0.8   $0.8
Interest cost                 5.7     5.2     5.0       1.0    0.9    0.8
Expected return on 
 plan assets                 (7.3)   (6.2)   (5.3)       --     --     --
Amortization of 
 transition amount            0.7     0.7     0.7        --     --     --
Amortization of prior 
 service cost                 0.4     0.2     0.4      (1.7)  (1.7)  (1.7)
Recognized net 
 actuarial gain              (0.6)     --      --        --     --     --
                             ----    ----    ----      ----   ----   ----
Net periodic benefit cost    $3.7    $4.0    $5.4      $0.2    $--  $(0.1)
                             ====    ====    ====      ====    ===  =====

</TABLE>

    Benefits under defined benefit plans are generally based on 
years of service and the employee's career earnings. Employees 
become fully vested after five years. 

    The Company's funding policy for U.S. plans generally is to 
contribute annually into trust funds at a rate that is intended to 
remain at a level percentage of compensation for covered employees. 
The funding policy for the international plans conforms to local 
governmental and tax requirements.  The plans' assets are invested 
primarily in stocks and bonds. 

    The Company provides postretirement health care and life 
insurance benefits for substantially all of its U.S. retired 
employees. Employees are generally eligible for benefits upon 
retirement and completion of a specified number of years of 
creditable service. The Company does not pre-fund these benefits 
and has the right to modify or terminate the plan in the future.

    Assumed health care cost trend rates could have a significant 
effect on amounts reported for the health care plans.  A 
one-percentage-point change in assumed health care cost trend 
rates would have the following effects:

<TABLE>
<CAPTION>
                            1-Percentage-Point      1-Percentage-Point
                                 Increase                 Decrease 
                            ------------------      ------------------
<S>                            <C>                   <C>
Effect on total 
 service and interest 
 cost components                   $4,000                 $(5,000)
Effect on postretirement 
 benefit obligation               $60,000                $(70,000)

</TABLE>

SAVINGS AND INVESTMENT PLANS

    The Company maintains a voluntary Savings and Investment 
Plan for most non-union employees in the U.S. Within prescribed 
limits, the Company bases its contribution to the Plan on 
employee contributions. The Company's contributions amounted 
to $3.1  million, $3.1 million and $3.0 million for the years 
ended December 31, 1998, 1997 and 1996, respectively.

LEASES

    Rent expense amounted to approximately $3.4 million, 
$4.2 million and $4.2 million for the years ended December 31, 
1998, 1997 and 1996, respectively.  Total future minimum rental 
commitments under all noncancelable leases for the years 1999 
through 2003 and thereafter are approximately $1.5 million, 
$1.5 million, $1.4 million, $1.3 million, $1.3 million and 
$11.5 million, respectively.

    In 1997, the Company entered into a long-term direct financing 
lease of its Pima County, Arizona, limestone facility with another 
company.  Total future minimum payments to be received under 
direct financing leases for the years 1999 through 2003 and 
thereafter are approximately $0.2 million, $0.2 million, $0.2 million, 
0.2 million, $0.2 million and $3.1  million, respectively.

                      F-13
<PAGE>
        MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


LITIGATION

    Under the terms of certain agreements entered into in 
connection with the reorganization prior to the initial public 
offering of the Company's common stock in October 1992,  Pfizer 
and its wholly owned subsidiary, Quigley Company, Inc. ("Quigley") 
agreed to indemnify the Company against certain liabilities being 
retained by Pfizer and its subsidiaries including, but not limited 
to, pending lawsuits and claims and any lawsuits or claims brought 
at any time in the future alleging damages or injury from the use, 
handling of or exposure to any product sold by Pfizer's specialty 
minerals business prior to the closing of the initial public offering. 

    Pfizer and Quigley also agreed to indemnify the Company against 
any liability arising from on-site remedial waste site claims and for 
other claims that may be made in the future with respect to wastes 
disposed of prior to the closing of the initial public offering.  
Further, Pfizer and Quigley agreed to indemnify the Company for 50% of 
the liabilities in excess of $1 million up to $10 million that may arise 
or accrue within ten years after the closing of the initial public 
offering with respect to remediation of on-site conditions existing 
at the time of the closing of the initial public offering. The Company 
will be responsible for the first $1 million of such liabilities, 50% 
of such liabilities in excess of $1 million up to $10 million, and all 
such liabilities in excess of $10 million.

     The transfer by Quigley of certain real property in New Jersey to 
the Company pursuant to the reorganization, including the former Quigley 
facility in Old Bridge, triggered certain obligations under the New 
Jersey Environmental Cleanup Responsibility Act ("ECRA").  Quigley 
retained liability for compliance with ECRA including the assessment 
and, if necessary, remediation of the Old Bridge property.  Quigley's 
obligations under ECRA are embodied in an Administrative Consent Order 
with the New Jersey Department of Environmental Protection and Energy 
("NJDEPE") that requires Quigley to perform any necessary remediation 
and to provide financial assurance of its ability to cover the costs 
of remediation as estimated by NJDEPE with no obligation to the Company.

    The Company and its subsidiary, Specialty Minerals Inc., are 
defendants in a lawsuit, captioned EATON CORPORATION V. PFIZER INC, 
MINERALS TECHNOLOGIES INC. AND SPECIALTY MINERALS INC. which was filed 
on July 31, 1996 and is pending in the U.S. District Court for the 
Western District of Michigan.  The suit alleges that certain materials 
sold to Eaton for use in truck transmissions were defective, 
necessitating repairs for which Eaton seeks reimbursement.  The amount 
of damages claimed by Eaton is approximately $20 million plus interest.  
The Company believes it has insurance coverage for a substantial 
portion of the alleged damages, if it should be held liable.  While 
all litigation contains an element of uncertainty, the Company and 
Specialty Minerals Inc. believe that they have valid defenses to the 
claims asserted by Eaton in this lawsuit, are continuing to vigorously 
defend all such claims, and believe that the outcome of this matter 
will not have a material adverse effect on the Company's consolidated 
financial position or results of operations.

    The Company and its subsidiaries are not party to any other 
pending legal proceedings, other than ordinary routine litigation 
that is incidental to their businesses.

CAPITAL STOCK

    The Company's authorized capital stock consists of 100 
million shares of common stock, par value $.10 per share, of 
which 21,813,674 shares and 22,540,385 shares were outstanding 
at December 31, 1998 and 1997, respectively, and 1,000,000 shares 
of preferred stock, none of which were issued and outstanding.

CASH DIVIDENDS
    Cash dividends of $2.2 million or $.10 per common share were 
paid during 1998.  In January 1999, a cash dividend of approximately 
$545,000 or $ .025 per share, was declared, payable in the first 
quarter of 1999.

                               F-14
<PAGE>
        MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


PREFERRED STOCK PURCHASE RIGHTS
    Under the Company's Preferred Stock Purchase Rights Plan, 
each share of the Company's common stock carries with it one 
preferred stock purchase right.  Subject to the terms and conditions 
set forth in the plan, the rights will become exercisable if a 
person or group acquires beneficial ownership of 15% or more of the 
Company's common stock or announces a tender or exchange offer which 
would result in the acquisition of 30% or more thereof.  If the rights 
become exercisable, separate certificates evidencing the rights will 
be distributed, and each right will entitle the holder to purchase 
from the Company a new series of preferred stock, designated as 
Series A Junior Preferred Stock, at a predefined price.  The rights 
also entitle the holder to purchase shares in a change-of-control 
situation.  The preferred stock, in addition to a preferred dividend 
and liquidation right, will entitle the holder to vote on a pro rata 
basis with the Company's common stock.

    The rights are redeemable by the Company at a fixed price until 
10 days, or longer as determined by the Board, after certain defined 
events or at any time prior to the expiration of the rights on 
October 26, 2002 if such events do not occur.

STOCK AND INCENTIVE PLAN
    The Company has adopted a Stock and Incentive Plan (the "Plan") 
which provides for grants of incentive and non-qualified stock 
options, stock appreciation rights, stock awards or performance 
unit awards.  The Plan is administered by the Compensation and 
Nominating Committee of the Board of Directors. Stock options granted 
under the Plan have a term not in excess of ten years. The exercise 
price for stock options will not be less than the fair market value 
of the common stock on the date of the grant, and each award of stock 
options will vest ratably over a specified period, generally three years.  

    In 1998, the Shareholders approved an amendment to the Plan to 
increase the number of shares of common stock available under the 
Plan by an additional 1.5 million.

    The following table summarizes stock option activity for the Plan:

<TABLE>
<CAPTION>
                                                UNDER OPTION
                                        ----------------------------
                             SHARES                WEIGHTED AVERAGE
                             AVAILABLE             EXERCISE PRICE
                             FOR GRANT   SHARES    PER SHARE ($)
                             ---------  ---------  -----------------    
<S>                         <C>        <C>          <C>
Balance January 1, 1996      1,890,933  1,067,649     $22.83
Granted                       (804,111)   804,111      30.625
Exercised                           --   (108,911)     22.90  
Canceled                        15,069    (15,069)     30.06 
                             ---------  ---------     ------- 
Balance December 31, 1996    1,101,891  1,747,780      26.36  
Exercised                           --    (96,290)     24.38 
Canceled                        23,473    (23,473)     30.35 
                             ---------  ---------     ------- 
Balance December 31, 1997    1,125,364  1,628,017      26.41 
Authorized                   1,500,000         --         --
Granted                        (22,500)    22,500      45.86
Exercised                           --   (162,835)     25.17
Canceled                        27,451    (27,451)     30.48 
                             ---------  ---------    ------- 
Balance December 31, 1998    2,630,315  1,460,231     $26.77 
                             =========  =========    =======
</TABLE>

    In 1996, the Company adopted the disclosure provisions of 
SFAS No. 123, "Accounting for Stock Based Compensation."  There 
were 22,500 stock options granted in 1998 and no stock options 
granted in 1997.  The weighted-average fair value per option at 
the date of grant for options granted during 1998 was $15.47 and 
in 1996 it was $9.64.  The fair value was estimated using the 
Black-Scholes option pricing model, modified for dividends, and 
the following weighted-average assumptions:

                           1998    1996
                           ----    ----
Expected life (years)       5       5
Interest rate              5.03%    6.20%
Volatility                28.10%   21.53%
Expected dividend yield    0.22%    0.33%

                              F-15
<PAGE>

        MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


    Pro forma net income and earnings per share reflecting 
compensation cost for the fair value of stock options awarded 
in 1998 and 1996 were as follows:

<TABLE>
<CAPTION>

(MILLIONS OF DOLLARS, 
 EXCEPT PER SHARE AMOUNTS)                       1998  1997   1996
- --------------------------                       ----  ----   ----
<S>                        <C>                 <C>    <C>    <C>
Net income                  As reported         $57.2  $50.3  $43.1
                            Pro forma           $55.5  $48.8  $41.6

Basic earnings per share    As reported          $2.57  $2.23  $1.91
                            Pro forma            $2.49  $2.16  $1.84

Diluted earnings per share  As reported          $2.50  $2.18  $1.86
                            Pro forma            $2.42  $2.11  $1.80

</TABLE>

    The amounts disclosed may not be representative of the 
effects on reported net income for future years. 

    The following table summarizes information concerning 
Plan options outstanding at December 31, 1998:

<TABLE>
<CAPTION>

              OPTIONS OUTSTANDING                   OPTIONS EXERCISABLE 
- ------------------------------------------------  -----------------------   
  
                             WEIGHTED   
                             AVERAGE      WEIGHTED WEIGHTED
RANGE OF         NUMBER      REMAINING    AVERAGE  NUMBER      AVERAGE 
EXERCISE       OUTSTANDING  CONTRACTUAL   EXERCISE EXERCISABLE EXERCISE 
 PRICES        AT 12/31/98  TERM (YEARS)   PRICE   AT 12/31/98  PRICE   
- --------       ----------- ------------  --------- ----------- ---------
<S>            <C>          <C>           <C>       <C>       <C>
$22.625-29.75    767,484        4.2        $22.84    767,484   $22.84 
$30.625-52.375   692,747        7.1        $31.11    446,831   $30.625

</TABLE>
 
EARNINGS PER SHARE (EPS)

BASIC EPS                                1998     1997    1996
                                         ----     ----    ----

Net income                            $57,224  $50,312  $43,097
                                      -------  -------  ------- 

Weighted average shares outstanding    22,281   22,558   22,621
                                      -------  -------  -------

Basic earnings per share                $2.57    $2.23    $1.91
                                      =======  =======  =======
 
DILUTED EPS                              1998     1997     1996
                                         ----     ----     ----

Net income                            $57,224  $50,312  $43,097
                                      -------  -------  -------

Weighted average shares outstanding    22,281   22,558   22,621
Dilutive effect of stock options          645      555      511
                                      -------  -------  -------
Weighted average shares outstanding, 
 adjusted                              22,926   23,113   23,132
                                      -------  -------  -------
Diluted earnings per share              $2.50    $2.18    $1.86
                                      =======  =======  =======

                              F-16
<PAGE>

        MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


COMPREHENSIVE INCOME

    The following table reflects the accumulated balances of other 
comprehensive income (loss) (in millions):

<TABLE>
<CAPTION>

                                                      ACCUMULATED
                     CURRENCY   MINIMUM UNREALIZED          OTHER
                  TRANSLATION   PENSION    HOLDING  COMPREHENSIVE
                   ADJUSTMENT LIABILITY      GAINS  INCOME (LOSS)
                  ----------- --------- ----------  -------------
<S>                 <C>       <C>       <C>         <C>
Balance at 
 January 1, 1996       $16.9     $--       $0.1        $17.0
Current year change     (5.4)     --        0.1         (5.3)
                       -----    -----      -----        -----

Balance at 
 December 31, 1996      11.5      --        0.2         11.7
Current year change    (25.0)    (1.0)     (0.1)       (26.1)
                       -----     -----     -----        -----

Balance at 
 December 31, 1997     (13.5)    (1.0)      0.1        (14.4)
Current year change      4.8       --        --          4.8
                       -----    -----      -----        -----

Balance at 
December 31, 1998      $(8.7)   $(1.0)     $0.1        $(9.6)
                       =====    =====     =====        =====
</TABLE>

    The tax expense (benefit) associated with items included in 
other comprehensive income (loss) were $(0.5) million, $(1.0) million 
and $(0.5) million for 1998, 1997 and 1996, respectively.

SEGMENT AND RELATED INFORMATION

    SFAS No. 131, "Disclosures about Segments of Enterprise and 
Related Information," established standards for reporting information 
about operating segments in annual financial statements and required 
selected information about operating segments in interim financial 
reports issued to stockholders.  It also established standards for 
related disclosures about products and services, and geographic areas.  
Operating segments are defined as components of an enterprise about 
which separate financial information is available that is evaluated 
regularly by the chief operating decision maker in deciding how to 
allocate resources and in assessing performance.  The Company's 
operating segments are strategic business units that offer 
different products and serve different markets.  They are managed 
separately and require different technology and marketing strategies.

    The Company has two operating segments: Specialty Minerals 
and Refractories.  The Specialty Minerals segment produces and 
sells precipitated calcium carbonate and lime, and mines, processes 
and sells the natural mineral products limestone and talc.  This 
segment's products are used principally in the paper, building 
materials, paints and coatings, glass, ceramic, polymers, food, and 
pharmaceutical industries.  The Refractories segment produces and 
markets monolithic and shaped refractory materials and services used 
primarily by the steel, cement and glass industries.

    The accounting policies of the segments are the same as those 
described in the summary of significant accounting policies.  The 
Company evaluates performance based on operating income of the 
respective business units.  Depreciation expense related to corporate 
assets are allocated to the business segments and are included in 
income from operations.  However, such corporate depreciable assets 
are not included in the segment assets.  Intersegment sales and 
transfers are not significant.

                              F-17
<PAGE>

     MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
         NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

    Segment information for the years ended December 31, 1998, 
1997 and 1996 was as follows (in millions):

<TABLE>
<CAPTION>

                                     1998
                      SPECIALTY MINERALS REFRACTORIES   TOTAL
<S>                     <C>             <C>          <C>  
Net sales                  $429.0          $180.2      $609.2
Income from operations      $66.2           $26.9       $93.1
Depreciation, depletion 
 and amortization           $45.3            $7.8       $53.1
Segment assets             $562.7          $167.5      $730.2
Capital expenditures        $63.1            $9.4       $72.5

                                       1997
                      SPECIALTY MINERALS REFRACTORIES   TOTAL

Net sales                   $403.1          $199.2      $602.3
Income from operations       $54.7           $25.5       $80.2
Depreciation, depletion 
 and amortization            $44.3            $8.6       $52.9
Segment assets              $537.3          $170.1      $707.4
Capital expenditures         $66.6            $8.2       $74.8

                                        1996
                      SPECIALTY MINERALS REFRACTORIES   TOTAL

Net sales                   $359.3          $196.7      $556.0
Income from operations       $50.3           $17.1       $67.4
Depreciation, depletion 
 and amortization            $37.8            $8.4       $46.2
Segment assets              $512.6          $188.0      $700.6
Capital expenditures         $85.1           $11.0       $96.1

</TABLE>


    A reconciliation of the totals reported for the operating 
segments to the applicable line items in the consolidated financial 
statements is as follows (in millions):  

<TABLE>
<CAPTION>
                      
                                                   1998   1997    1996
                                                   ----   ----    ----
INCOME BEFORE PROVISION FOR TAXES  
  ON INCOME AND MINORITY INTERESTS
<S>                                             <C>     <C>    <C>
Income from operations for reportable segmentS    $93.1   $80.2  $67.4
Unallocated corporate expenses                     (0.7)     -      -  
                                                  -----   -----  -----
Consolidated income from operations                92.4    80.2   67.4
Interest income                                     2.1     1.8    1.0
Interest expense                                   (5.9)   (7.2)  (5.9)
Other income (deductions)                          (2.3)   (2.6)   0.1 
                                                  -----   -----  -----
Income before provision fortaxes on income
  and minority interests                          $86.3   $72.2  $62.6
                                                  -----   -----  -----

TOTAL ASSETS                                       1998    1997   1996
                                                   ----    ----   ----
Total segment assets                             $730.2  $707.4 $700.6
Corporate assets                                   30.7    34.0   13.3
                                                  -----   -----  -----

Consolidated total assets                        $760.9  $741.4 $713.9
                                                 ======  ====== ======

                                                   1998    1997   1996
                                                   ----    ----   ----
CAPITAL EXPENDITURES
Total segment capital expenditures                $72.5   $74.8  $96.1
Corporate capital expenditures                     10.0     2.5    1.2
                                                  -----   -----  -----

Consolidated total capital expenditures           $82.5   $77.3  $97.3
                                                  =====   =====  =====
</TABLE>

                               F-18
<PAGE>

    MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES
         NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

    Financial information relating to the Company's operations 
by geographic area was as follows (in millions):

<TABLE>
<CAPTION>
                                              1998    1997    1996
                                              ----    ----    ----
NET SALES
<S>                                        <C>      <C>     <C> 
United States                                $411.7  $414.4  $383.0
                                             ------  ------  ------

Canada/Latin America                           59.4    59.9    52.3
Europe/Africa                                 103.7    83.4    76.6
Asia                                           34.4    44.6    44.1
                                             ------  ------  ------
Total International                           197.5   187.9   173.0
                                              -----   -----   -----

Consolidated total net sales                 $609.2  $602.3  $556.0
                                             ======  ======  ======
</TABLE>

    Net sales are attributed to countries and geographic areas 
based on the location of the legal entity.  No individual foreign 
country represents more than 10% of consolidated net sales or 
consolidated long-lived assets.

<TABLE>
<CAPTION>

                                               1998    1997    1996
                                               ----    ----    ----
LONG-LIVED ASSETS
<S>                                        <C>      <C>     <C>
United States                                $349.9  $367.6  $365.5
                                             ------  ------  ------

Canada/Latin America                           34.7    37.9    41.8
Europe/Africa                                 108.3    72.1    61.8
Asia                                           31.6    23.1    32.0
                                             ------  ------  ------
Total International                           174.6   133.1   135.6
                                             ------  ------  ------

Consolidated totallong-lived assets          $524.5  $500.7  $501.1
                                             ======  ======  ======
</TABLE>


QUARTERLY FINANCIAL DATA (UNAUDITED)

<TABLE>
<CAPTION>

THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS
1998 QUARTERS                      FIRST    SECOND     THIRD    FOURTH
                                --------  --------  --------  --------
<S>                           <C>        <C>       <C>       <C>
Net sales                       $144,102  $155,752  $154,119  $155,220
Gross profit                      44,829    48,496    49,449    49,861
Net income                        12,801    14,657    15,451    14,315
Earnings per share:
   Basic                            0.57      0.65      0.70      0.65
   Diluted                          0.55      0.63      0.68      0.64
Market Price Range Per Share
  of Common Stock
High                             52 5/16   55 9/16    54        51 1/4
Low                             40 15/16    48 3/8    35 7/8    36
Close                           49 15/16    51 3/4    39 1/4  40 15/16

Dividends paid per common share    $.025     $.025     $.025     $.025

THOUSANDS OF DOLLARS, EXCEPT PER SHARE AMOUNTS
1997 QUARTERS                      FIRST    SECOND     THIRD   FOURTH
                                --------  --------  --------  --------
Net sales                       $137,626  $151,765  $155,012  $157,932
Gross profit                      40,525    44,365    46,424    46,409
Net income                        10,568    12,361    13,713    13,670
Earnings per share:
   Basic                            0.47      0.55      0.61      0.61
   Diluted                          0.46      0.54      0.59      0.59
Market Price Range Per Share 
  of Common Stock
High                              42 7/8    40 7/8  44 15/16    46 1/8
Low                               34        32 1/8    36 1/8    39 1/2
Close                             34 1/4    37 1/4    44 3/4   45 7/16

Dividends paid per common share    $.025     $.025     $.025     $.025

</TABLE>
                          F-19
<PAGE>


INDEPENDENT AUDITORS' REPORT
- ----------------------------------------------------------------------


     THE BOARD OF DIRECTORS AND SHAREHOLDERS
    MINERALS TECHNOLOGIES INC.:

    We have audited the accompanying consolidated balance sheet 
of Minerals Technologies Inc. and subsidiary companies as of 
December 31, 1998 and 1997 and the related consolidated statements 
of income, shareholders' equity and cash flows for each of the years 
in the three-year period ended December 31, 1998.  These consolidated 
financial statements are the responsibility of the Company's management.  
Our responsibility is to express an opinion on these consolidated 
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 consolidated financial statements.  An audit also 
includes assessing the accounting principles used and significant 
estimates made by management, as well as evaluating the overall 
consolidated financial statement presentation.  We believe that our 
audits provide a reasonable basis for our opinion.

    In our opinion, the consolidated financial statements referred 
to above present fairly, in all material respects, the financial 
position of Minerals Technologies Inc. and subsidiary companies as of 
December 31, 1998 and 1997 and the results of their operations and 
their cash flows for each of the years in the three-year period ended 
December 31, 1998 in conformity with generally accepted accounting 
principles.



KPMG LLP

New York, New York
January 19, 1999



                          F-20
<PAGE>


MANAGEMENT'S RESPONSIBILITY FOR FINANCIAL STATEMENTS AND SYSTEM OF
INTERNAL CONTROL
- ----------------------------------------------------------------------


    The consolidated financial statements and all related financial 
information herein are the responsibility of the Company's management.  
The financial statements, which include amounts based on judgments, 
have been prepared in accordance with generally accepted accounting 
principles.  Other financial information in the annual report is 
consistent with that in the financial statements.

    The Company maintains a system of internal control over financial 
reporting which it believes provides reasonable assurance that 
transactions are executed in accordance with management's authorization 
and are properly recorded, that assets are safeguarded, and that 
accountability for assets is maintained.  Even an effective internal 
control system, no matter how well designed, has inherent limitations 
and, therefore, can provide only reasonable assurance with respect to 
financial statement preparation.  The system of internal control is 
characterized by a control-oriented environment within the Company which 
includes written policies and procedures, careful selection and training 
of personnel, and audits by a professional staff of internal auditors.

    The Company's independent accountants have audited and reported on 
the Company's consolidated financial statements.  Their audits were 
performed in accordance with generally accepted auditing standards.

    The Audit Committee of the Board of Directors is composed solely 
of outside directors.  The Audit Committee meets periodically with our 
independent auditors, internal auditors and management to review 
accounting, auditing, internal control and financial reporting matters.  
Recommendations made by the independent auditors and the Company's 
internal auditors are considered and appropriate action is taken with 
respect to these recommendations.  Both our independent auditors and 
internal auditors have free access to the Audit Committee.



JEAN-PAUL VALLES
Chairman of the Board and Chief Executive Officer 




NEIL M. BARDACH
Vice President, Finance and Chief Financial Officer




MICHAEL A. CIPOLLA
Controller and Chief Accounting Officer

January 19, 1999



                           F-21
<PAGE>


             MINERALS TECHNOLOGIES INC. & SUBSIDIARY COMPANIES
               SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS
                        (thousands of dollars)

<TABLE>
<CAPTION>

                                 ADDITIONS
                                 CHARGED 
                     BALANCE AT  TO COST,                     BALANCE AT
                     BEGINNING   PROVISION AND                  END OF
DESCRIPTION          OF PERIOD   EXPENSES     DEDUCTIONS(a)(b)   PERIOD
- -----------          ----------  ------------ ---------------- ----------
<S>                  <C>         <C           <C>              <C>

YEAR ENDED 
 DECEMBER 31, 1998
Valuation and
  qualifying accounts 
  deducted from 
  assets to which 
  they apply
Allowance for 
 doubtful accounts      $3,266      $507           $53           $3,720
                        ======      ====           ===           ======


YEAR ENDED 
 DECEMBER 31, 1997
Valuation and 
 qualifying accounts 
 deducted from 
 assets to which 
 they apply
Allowance for 
 doubtful accounts      $2,497     $1,554          $785          $3,266
                        ======     ======          ====          ======



YEAR ENDED 
 DECEMBER 31, 1996
Valuation and 
 qualifying accounts 
 deducted from 
 assets to which 
 they apply
Allowance for 
 doubtful accounts      $3,088       $79           $670         $2,497
                        ======       ===           ====         ======


</TABLE>





(a)Includes impact of translation of foreign currencies.
(b)Uncollectible accounts charged against allowances for doubtful accounts,
   net of recoveries.

                            S-1



                         
                               
                                                      EXHIBIT 21.1


                    SUBSIDIARIES OF THE REGISTRANT
                    ------------------------------


Name of the Company                               Place of Incorporation
- -------------------                               ----------------------

APP China Specialty Minerals Pte Ltd.             Singapore
Barretts Minerals Inc.                            Delaware
Centre International De Couchage C.I.C. Inc.      Canada
ComSource Trading Ltd.                            Delaware
Gold Sheng Chemicals (Zhenjiang) Co., Ltd.        China
Hi-Tech Specialty Minerals Company Limited        Thailand
Huzhou Minteq Refractory Co. Ltd.                 China
Minerals Technologies Europe N.V.                 Belgium
Minerals Technologies Holdings Ltd.               United Kingdom
Minerals Technologies South Africa (Pty) Ltd.     South Africa
Mintech Canada Inc.                               Canada
Mintech do Brasil Comercio Ltda.                  Brazil
Mintech Japan K.K.                                Japan
Minteq Australia Pty Ltd.                         Australia
Minteq Europe Limited.                            Ireland
Minteq International GmbH                         Germany
Minteq International Inc.                         Delaware
Minteq Italiana S.p.A.                            Italy
Minteq Korea Inc.                                 Korea
Minteq Magnesite Limited                          Ireland
Minteq UK Limited.                                United Kingdom
MTX Finance Inc.                                  Delaware
MTX Finance Ireland                               Ireland
PT Sinar Mas Specialty Minerals                   Indonesia
Specialty Minerals do Brasil Comercio
 e Industria Ltda.                                Brazil
Specialty Minerals FMT K.K.                       Japan
Specialty Minerals France S.A.R.L.                France
Specialty Minerals Inc.                           Delaware
Specialty Minerals Inc. Poland Sp. z o.o.         Poland
Specialty Minerals International Inc.             Delaware
Specialty Minerals Israel Limited                 Israel
Specialty Minerals (Mauritius) Private Limited    Mauritius
Specialty Minerals (Michigan) Inc.                Michigan
Specialty Minerals Nordic Oy Ab                   Finland
Specialty Minerals Philippines, Inc.              Philippines
Specialty Minerals (Portugal) - 
 Especialidades Minerais, S.A.                    Portugal
Specialty Minerals, S.A. de C.V.                  Mexico
Specialty Minerals Slovakia, spol. s r.o.         Slovakia
Specialty Minerals South Africa (Pty.) Limited    South Africa
Specialty Minerals (Thailand) Limited             Thailand
Specialty Minerals UK Limited                     United Kingdom
Specialty Pigments (India) Private Limited        India
Synsil Products Inc.                              Delaware
Tecnologias Minerales de Mexico, S.A. de C.V.     Mexico



                                                                         
                                                                            
                                                       EXHIBIT 23.1

             REPORT AND CONSENT OF INDEPENDENT AUDITORS
             ------------------------------------------

The Board of Directors and Shareholders
Minerals Technologies Inc.:                                                 
 


The audits referred to in our report dated January 19, 1999, included the
related financial statement schedule for each of the years in the three-
year period ended December 31, 1998, as listed in Item 14 of this Annual
Report on Form 10-K.  This financial statement schedule is the
responsibility of the Company's management.  Our responsibility is to
express an opinion on this  financial statement schedule based on our
audits.  In our opinion, such financial statement schedule, when considered
in relation to the basic consolidated financial statements taken as a
whole, presents fairly, in all material respects, the information set forth
therein.

We consent to the use of our reports included herein and incorporated by
reference in the Registration Statements on
Form S-8 (Nos. 33-59080, 33-65268, 33-96558 and 333-62739).




                                                    KPMG  LLP               
 
   

New York, New York
March 15, 1999


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the 
consolidated financial statements of Minerals Technologies Inc., and 
is qualified in its entirety by reference to such consolidated financial
statements. 
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                          20,697
<SECURITIES>                                       000
<RECEIVABLES>                                  113,912
<ALLOWANCES>                                     3,720
<INVENTORY>                                     63,657
<CURRENT-ASSETS>                               210,830
<PP&E>                                         906,219
<DEPRECIATION>                                 381,690
<TOTAL-ASSETS>                                 760,912
<CURRENT-LIABILITIES>                           97,938
<BONDS>                                         88,167
                                0
                                          0
<COMMON>                                         2,553
<OTHER-SE>                                     611,345
<TOTAL-LIABILITY-AND-EQUITY>                   760,912
<SALES>                                        609,193
<TOTAL-REVENUES>                               609,193
<CGS>                                          416,558
<TOTAL-COSTS>                                  416,558
<OTHER-EXPENSES>                                21,038
<LOSS-PROVISION>                                   000
<INTEREST-EXPENSE>                               5,918
<INCOME-PRETAX>                                 86,342
<INCOME-TAX>                                    27,360
<INCOME-CONTINUING>                             57,224
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    57,224
<EPS-PRIMARY>                                     2.57<F1>
<EPS-DILUTED>                                     2.50
<FN>
<F1>(EPS-PRIMARY) DENOTES BASIC EPS
</FN>
        

</TABLE>


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