UNION CARBIDE CORP /NEW/
10-K, 1999-03-25
INDUSTRIAL ORGANIC CHEMICALS
Previous: UAL CORP /DE/, 8-K, 1999-03-25
Next: UNION PACIFIC CORP, 10-K405, 1999-03-25





          Securities and Exchange Commission, Washington, D.C. 20549

       Annual Report on Form 10-K for the year ended December 31, 1998.
     Filed pursuant to Section 13 of the Securities Exchange Act of 1934.
                         Commission file number 1-1463

                           Union Carbide Corporation
                                   1998 10-K


Union Carbide Corporation              Tel. (203) 794-2000
39 Old Ridgebury Road                  State of incorporation: New York
Danbury, Connecticut 06817-0001        IRS identification number: 13-1421730


Securities registered pursuant to Section 12(b) of the Act:

Title of each class                  Name of each exchange on which registered

Common Stock ($1 par value)          New York Stock Exchange
                                     Chicago Stock Exchange, Incorporated
                                     The Pacific Stock Exchange Incorporated

Share Purchase Rights Plan           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 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]

At February 28, 1999, 132,990,557 shares of common stock were outstanding. 
Non-affiliates held 132,302,868 of those shares. The aggregate market value of 
the non-affiliate shares was $5.821 billion.

Documents incorporated by reference:

Annual report to stockholders for the year ended December 31, 1998 (Parts I 
and II)

Proxy statement for the annual meeting of stockholders to be held on April 28, 
1999 (Part III)

<PAGE>

                               Table of Contents

Part I
Item 1:  Business                                                            1
Item 2:  Properties                                                          3
Item 3:  Legal Proceedings                                                   5
Item 4:  Submission of Matters to a Vote of Security Holders                 5

Part II
Item 5:  Market for Registrant's Common Equity and Related Stockholder 
           Matters                                                           6
Item 6:  Selected Financial Data                                             6
Item 7:  Management's Discussion and Analysis of Financial Condition and 
           Results of Operations                                             6
Item 7a: Quantitative and Qualitative Disclosures About Market Risk          6
Item 8:  Financial Statements and Supplementary Data                         6
Item 9:  Changes in and Disagreements with Accountants on Accounting and 
           Financial Disclosure                                              6

Part III
Item 10:  Directors and Executive Officers of the Registrant                 7
Item 11:  Executive Compensation                                             8
Item 12:  Security Ownership of Certain Beneficial Owners and Management     8
Item 13:  Certain Relationships and Related Transactions                     8

Part IV
Item 14:  Exhibits, Financial Statement Schedules and Reports on Form 8-K    9
Signatures                                                                  12
Exhibit Index                                                               13

Cautionary statement: All statements in this Annual Report on Form 10-K that 
do not reflect historical information are forward-looking statements, within 
the meaning of the Private Securities Litigation Reform Act of 1995 (as 
amended). Forward-looking statements include statements concerning plans; 
objectives; strategies; anticipated future events or performance; sales; cost, 
expense and earnings expectations; the Year 2000 issue; the euro; interest 
rate and currency risk management; the chemical markets in 1999 and beyond; 
cost reduction targets; the corporation's share price; earnings and 
profitability targets; development, production and acceptance of new products 
and process technologies; ongoing and planned capacity additions and 
expansions; joint ventures; Management's Discussion & Analysis; and any other 
statements that do not reflect historical information. These include 
statements incorporated herein by reference to the 1998 annual report to 
stockholders. Such forward-looking statements are subject to risks and 
uncertainties. Important factors that could cause actual results to differ 
materially from those discussed in such forward-looking statements include the 
supply/demand balance for the corporation's products; customer inventory 
levels; competitive pricing pressures; feedstock availability and costs; 
changes in industry production capacities and operating rates; currency 
exchange rates; interest rates; global economic conditions, particularly in 
Asia and Latin America; disruption in transportation facilities; competitive 
technology positions; failure by the corporation to achieve technology 
objectives, achieve cost reduction targets or complete projects on schedule 
and on budget; and inability to obtain new customers or retain existing ones. 
Some of these factors are discussed further in Part I, Item 1: Business.

Definition of Terms: See page 48 of the 1998 annual report to stockholders. 
Terms defined there are used herein.

Printed on Recycled, Recyclable Paper

<PAGE>


                                    Part I


Item 1. Business

General-Union Carbide operates in two business segments of the chemicals and 
plastics industry, Specialties & Intermediates and Basic Chemicals & Polymers. 
Specialties & Intermediates converts basic and intermediate chemicals into a 
diverse portfolio of chemicals and polymers serving industrial customers in 
many markets. This segment also provides technology services, including 
licensing, to the oil and gas and petrochemicals industries. The Basic 
Chemicals & Polymers segment converts hydrocarbon feedstocks, principally 
liquefied petroleum gas and naphtha, into ethylene or propylene used to 
manufacture polyethylene, polypropylene, ethylene oxide and ethylene glycol 
for sale to third-party customers, as well as propylene, ethylene, ethylene 
oxide and ethylene glycol for consumption by the Specialties & Intermediates 
segment. The profitability of the Basic Chemicals & Polymers segment of the 
chemicals and plastics industry is highly cyclical, whereas that of the 
Specialties & Intermediates segment is less cyclical. Consequently, Union 
Carbide's results are subject to the swings of the business cycle in both the 
highly volatile Basic Chemicals & Polymers segment and the less volatile 
Specialties & Intermediates segment. In addition to its business segments, the 
corporation's Other segment includes its noncore operations and financial 
transactions other than derivatives designated as hedges, which are included 
in the same segment as the item being hedged. See pages 1, 4, 5, and "Results 
of Operations" on pages 7 through 13 of the 1998 annual report to stockholders 
for further information about Union Carbide's businesses, and Note 6 on pages 
30 and 31 of the 1998 annual report to stockholders for financial information 
about Union Carbide's business segments.

Union Carbide does not produce against a backlog of firm orders; production is 
geared primarily to the level of incoming orders and to projections of future 
demand. Inventories of finished products, work in process and raw materials 
are maintained to meet delivery requirements of customers and Union Carbide's 
production schedules.

At year-end 1998, 11,627 people were employed in the manufacturing facilities, 
laboratories and offices of the corporation and its consolidated subsidiaries 
around the world.

Raw Materials, Products and Markets-See information herein and in the 1998 
annual report to stockholders on pages 4 and 5.  All products and services are 
marketed throughout the world by the corporation's direct sales force, and 
where appropriate, augmented by a network of Union Carbide authorized 
distributors.

Union Carbide believes it has contracts or commitments for, or readily 
available sources of, hydrocarbon feedstocks and fuel supplies to meet its 
anticipated needs in all major product areas. The corporation's operations are 
dependent upon the availability of hydrocarbon feedstocks and fuels which are 
purchased from diverse domestic and international sources, including 
independent oil and gas producers as well as integrated oil companies.

The availability and price of hydrocarbon feedstocks, energy and finished 
products are subject to plant interruptions and outages and to market and 
political conditions in the U.S. and elsewhere. Operations and products at 
times may be adversely affected by legislation, government regulations, 
shortages, or international or domestic events.

The business segments of Union Carbide are not dependent to a significant 
extent upon a single customer or a few customers.

Patents; Trademarks; Research and Development-Union Carbide owns a large 
number of United States and foreign patents that relate to a wide variety of 
products and processes, has pending a substantial number of patent 
applications throughout the world and is licensed under a number of patents. 
These patents expire at various times over the next 20 years. Such patents and 
patent applications in the aggregate are material to Union Carbide's 
competitive position. No one patent is considered to be material; however, the 
patent portfolio relating to the UNIPOL process technology is, in the 
aggregate, considered to be material to the Specialties & Intermediates 
segment and the corporation as a whole. Union Carbide also has a large number 
of trademarks. The UNION CARBIDE, UCAR and UNIPOL trademarks are material; no 
other single trademark is material.

                                     - 1 -
<PAGE>


                                Part I (Cont.)

Essentially all of Union Carbide's research and development activities are 
company-sponsored. The principal research and development facilities of Union 
Carbide are indicated in the discussion of Properties (Item 2) of this Form 
10-K report. In addition to the facilities specifically indicated there, 
product development and process technology laboratories are maintained at some 
plants. Union Carbide expensed $143 million in 1998, $157 million in 1997, and 
$159 million in 1996 on company-sponsored research activities to develop new 
products, processes, or services, or to improve existing ones.  Certain of 
Union Carbide's joint ventures conduct research and development within their 
business fields.

Environment-See Costs Relating to Protection of the Environment on pages 13 
and 14 of the 1998 annual report to stockholders and Note 17 on pages 42 and 
43 thereof.

Insurance-Union Carbide's policy is to obtain public liability and other 
insurance coverage at terms and conditions and at a cost that management 
considers fair and reasonable. Union Carbide's management believes it has a 
prudent risk management policy in effect and it periodically reviews its 
insurance coverage as to scope and amount and makes adjustments as deemed 
necessary. There is no assurance, however, that Union Carbide will not incur 
losses beyond the limits, or outside the coverage, of its insurance. Such 
insurance is subject to substantial corporate retentions.

Competition-Each of the major product and service areas in which Union Carbide 
participates is highly competitive. In some instances competition comes from 
manufacturers of the same products as those produced by Union Carbide and in 
other cases from manufacturers of different products which may serve the same 
markets as those served by Union Carbide's products. Some of Union Carbide's 
competitors, such as companies principally engaged in petroleum operations, 
have more direct access to hydrocarbon feedstocks and some have greater 
financial resources than Union Carbide.

The Specialties & Intermediates segment is characterized by differentiated 
products and is less subject to external changes in supply/demand 
relationships than the Basic Chemicals & Polymers segment. In the Specialties 
& Intermediates segment, competition is based primarily on product 
functionality and quality, with the more unique products commanding 
significant price premiums.

Products manufactured by the Specialties & Intermediates segment may compete 
with a few competitors in many products to many competitors in selected 
products.  In all, approximately 40 other major specialty chemical companies 
manufacture products competitive with those of the Specialties & Intermediates 
segment.

The Basic Chemicals & Polymers segment is characterized by large volume 
commodity products and is subject to external changes in supply/demand 
relationships, including changes in the strength of the overall economy, 
customer inventory levels, industry manufacturing capacity and operating rates 
and raw material feedstock costs. Participants in this segment compete for 
business primarily on the basis of price and efficient delivery systems.

The Basic Chemicals & Polymers segment competes with at least 12 other major 
producers of basic chemicals.

See pages 4 and 5 of the 1998 annual report to stockholders for information 
about each segment's principal products.

Union Carbide is a major marketer of petrochemical products throughout the 
world. Products that the corporation markets are largely produced in the 
United States, while products marketed by the corporation's joint ventures are 
principally produced outside the United States. Competitive products are 
produced throughout the world.

Union Carbide's international operations face competition from local producers 
and global competitors and a number of risks inherent in carrying on business 
outside the United States, including regional and global economic conditions, 
risks of nationalization, expropriation, restrictive action by local 
governments and changes in currency exchange rates.

See Note 6 on pages 30 and 31 of the 1998 annual report to stockholders for a 
summary of business and geographic segment information.

                                     - 2 -
<PAGE>


                                Part I (Cont.)

Item 2. Properties

In management's opinion, current facilities, together with planned expansions, 
will provide adequate production capacity to meet Union Carbide's planned 
business activities. Capital expenditures are discussed on pages 16 and 17 of 
the 1998 annual report to stockholders.

Listed below are the principal manufacturing facilities operated by Union 
Carbide worldwide. Research and engineering facilities are noted within each 
of the domestic and international descriptions below. Most of the domestic 
properties are owned in fee. Union Carbide maintains numerous domestic sales 
offices and warehouses, the majority of which are leased premises, whose lease 
terms are scheduled to expire in five years or less. All principal 
international manufacturing properties are owned or held under long-term 
leases. International administrative offices, technical service laboratories, 
sales offices and warehouses are owned in some instances and held under 
relatively short-term leases in other instances. The corporation's 
headquarters is located in Danbury, Connecticut and is leased.

Principal domestic manufacturing facilities and the principal products 
manufactured there are as follows:
Location       City                   Principal Product(s)
Specialties & Intermediates Segment
California     Torrance               Latexes
Georgia        Tucker                 Latexes
Illinois       Alsip                  Latexes
Louisiana      Greensburg             Hydroxyethyl cellulose derivatives
Louisiana      Norco (Cypress Plant)  Polypropylene catalysts
Louisiana      Taft                   Acrolein and derivatives, 
                                      acrylic monomers, caprolactone, 
                                      UV-curing resins, cycloaliphatic 
                                      epoxides, glycol ethers, ethyleneamines, 
                                      surfactants, ethanolamines, oxo alcohols
Louisiana      Taft (Star Plant)      Polyethylene catalysts
New Jersey     Bound Brook            Polyethylene compounds
New Jersey     Edison                 Lanolin and glucose derivatives
New Jersey     Somerset               Latexes
Puerto Rico    Bayamon                Latexes
Texas          Garland                Latexes
Texas          Seadrift               Ethanolamines, glycol ethers, ethylene-
                                      propylene rubber, polyethylene compounds
                                      for wire & cable, polyethylene catalysts
Texas          Texas City             Organic acids and esters, alcohols, 
                                      aldehydes, ketones, vinyl acetate, 
                                      solution vinyl resins, heat transfer
                                      fluids
West Virginia  Institute              Caprolactone derivatives, polyethylene 
                                      glycol, hydroxyethyl cellulose, 
                                      polyethylene oxide,  surfactants, 
                                      ethylidene norbornene, glutaraldehyde, 
                                      ethylene oxide catalysts, acetone and
                                      derivatives
West Virginia  South Charleston       Alkyl alkanolamines, miscellaneous 
                                      specialty products, polyalkylene 
                                      glycols, surfactants, specialty ketones, 
                                      polyvinyl acetate resins, heat transfer 
                                      fluids, aircraft deicing fluids, 
                                      polyethylene catalysts

Basic Chemicals & Polymers Segment
Louisiana      Norco (Cypress Plant)  Polypropylene
Louisiana      Taft                   Ethylene oxide and glycol, olefins
Louisiana      Taft (Star Plant)      Polyethylene
Texas          Seadrift               Ethylene oxide and glycol, olefins, 
                                      polyethylene, polypropylene
Texas          Texas City             Olefins

                                     - 3 -
<PAGE>


                                Part I (Cont.)

Research and development for the Specialties & Intermediates segment is 
carried on at technical centers in Bound Brook, Edison and Somerset, New 
Jersey; Tarrytown, New York; Cary, North Carolina; Houston and Texas City, 
Texas; and South Charleston, West Virginia. Research and development for the 
Basic Chemicals & Polymers segment is carried on at technical centers in Bound 
Brook and Somerset, New Jersey; Houston, Texas; and South Charleston, West 
Virginia. Process and design engineering for both segments is conducted at 
technical centers in South Charleston, West Virginia and in Houston, Texas, in 
support of domestic and foreign projects.

Principal international manufacturing facilities and the principal products 
manufactured there are as follows:

Country                     City         Principal Product(s)

Specialties & Intermediates Segment
Belgium                     Vilvoorde    Lanolin derivatives
Belgium                     Zwijndrecht  Hydroxyethyl cellulose
Brazil                      Aratu        Hydroxyethyl cellulose
Brazil                      Cabo         Vinyl acetate
Brazil                      Cubatao      Polyethylene
Ecuador                     Guayaquil    Latex
Indonesia                   Jakarta      Latex
Malaysia                    Seremban     Latex
People's Republic of China  Guangdong    Latex, hydroxyethyl cellulose 
                                         derivatives
People's Republic of China  Shanghai     Latex
Philippines                 Batangas     Latex
Sri Lanka                   Colombo      Latex
Thailand                    Rayong       Latex
United Arab Emirates        Dubai        Latex
United Kingdom              Wilton       Glycol ethers, ethanolamines

Basic Chemicals & Polymers Segment
Canada                      Prentiss     Ethylene glycol
United Kingdom              Wilton       Ethylene oxide and glycol

Research and development for the Specialties & Intermediates segment is 
carried on at international facilities in Zwijndrecht, Belgium; Cubatao, 
Brazil; Montreal East, Canada; Jurong, Singapore; and Meyrin (Geneva), 
Switzerland.


Principal locations of the corporation's partnerships and corporate 
investments carried at equity and the principal products manufactured by those 
entities are as follows:

Specialties and Intermediates:

UOP LLC - a joint venture with Allied Signal Inc., accounted for as a 
partnership, which is a leading worldwide supplier of process technology, 
catalysts, molecular sieves and adsorbents to the petrochemical and gas-
processing industries. UOP LLC has manufacturing facilities in Mobile, 
Alabama; Des Plaines and McCook, Illinois; Shreveport, Louisiana; Tonawanda, 
New York; Leverkusen, Germany; Reggio di Calabria, Italy; and Brimsdown, 
United Kingdom.  UOP has several joint ventures with 
manufacturing sites in Hiratsuka and Yokkaichi, Japan and Shanghai, China.  
Research and development is performed at locations in Des Plaines, Illinois 
and Mobile, Alabama.

Nippon Unicar Company Limited - a Japan-based producer of polyethylene and 
specialty polyethylene compounds and specialty silicone products.  This joint 
venture with Tonen Chemical Corporation has manufacturing facilities in 
Kawasaki and Komatsu, Japan.

                                     - 4 -
<PAGE>


                                Part I (Cont.)

Aspell Polymeres SNC - a France-based producer of polyethylene and specialty 
polyethylene compounds.  This partnership with Elf Atochem S.A., a subsidiary 
of Elf Aquitaine, has a manufacturing facility in Gonfreville, France.

World Ethanol Company - a U.S.-based partnership with Archer Daniels Midland 
Company that supplies ethanol worldwide.  This partnership has manufacturing 
facilities in Texas City, Texas and Peoria, Illinois.

Univation Technologies, LLC - a U.S.-based joint venture, accounted for as a 
partnership, with Exxon Chemical Company, a division of Exxon Corporation, for 
the licensing of polyethylene technology and research, development and 
commercialization of process technology and single site and other advanced 
catalysts for the production of polyethylene.  The venture is also the sales 
agent for licensing of Union Carbide's UNIPOL technology.  The company's 
headquarters is located in Houston, Texas.  Research and development and 
engineering are performed at locations in Bound Brook, New Jersey; Baytown, 
Texas; Houston, Texas; and South Charleston, West Virginia.  A catalyst 
manufacturing facility is located in Mont Belvieu, Texas.

Asian Acetyls, Co. Ltd. - a South Korea-based producer of vinyl acetate 
monomers used in the production of emulsion resins by customers in the 
coatings and adhesives industries.  This corporate joint venture with BP 
Chemicals and Samsung Fine Chemicals Company has a manufacturing facility in 
Ulsan, South Korea.

Basic Chemicals and Polymers:

Polimeri Europa S.r.l. - a Europe-based producer of olefins and polyethylene 
resins.  This corporate joint venture with EniChem S.p.A. of Italy operates 
facilities at Brindisi, Ferrara, Gela, Priolo and Ragusa, Italy; Dunkirk, 
France; and Oberhausen, Germany.  The venture is headquartered in Milan, 
Italy.

EQUATE Petrochemical Company K.S.C. - a corporate joint venture with 
Petrochemical Industries Company and Boubyan Petrochemical Company, which 
manufactures ethylene, polyethylene and ethylene glycol at its world-scale 
petrochemicals complex in Shuaiba, Kuwait.

Petromont and Company, Limited Partnership - a Canada-based olefins and 
polyethylene resins producer owned jointly with Ethylec Inc.  This partnership 
has manufacturing facilities at Montreal and Varennes, Quebec, Canada.

Alberta & Orient Glycol Company Limited - a corporate joint venture with 
Mitsui & Co., Ltd., Japan, and Far Eastern Textile Ltd., Taiwan.  This Canada-
based producer of ethylene glycol has a manufacturing facility in Prentiss, 
Alberta, Canada. 


Item 3. Legal Proceedings

See Note 17 of Notes to Financial Statements on pages 42 and 43 of the 1998 
annual report to stockholders.

On November 23, 1998, the West Virginia Division of Environmental Protection 
issued a Proposed Order to the corporation alleging violations of hazardous 
waste regulations at the corporation's South Charleston, West Virginia plant. 
The Proposed Order seeks a civil penalty of $359,200.  The corporation is 
contesting the alleged violations and proposed penalty.


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

The corporation did not submit any matters to a stockholder vote during the 
last quarter of 1998.

                                     - 5 -
<PAGE>


                                   Part II

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

Market and dividend information for the corporation's common stock is 
contained on pages 18, 19 and 45 of the 1998 annual report to stockholders. 
Information about the stock exchanges where the stock is traded in the United 
States is listed on page 46 of the 1998 annual report to stockholders. The 
declaration of dividends is a business decision made from time to time by the 
Board of Directors based on the corporation's earnings and financial condition 
and other factors the Board considers relevant.

The number of stockholders of record of the corporation's common stock is 
contained on page 1 of the 1998 annual report to stockholders.

Item 6. Selected Financial Data

Information pertaining to consolidated operations is included under the 
captions "From the Income Statement" and "From the Balance Sheet" and dividend 
information is included under the caption "Other Data" in the Selected 
Financial Data on pages 18 and 19 of the 1998 annual report to stockholders.

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

See the information in the 1998 annual report to stockholders on pages 7 
through 17.

Item 7a. Quantitative and Qualitative Disclosures About Market Risk

Information pertaining to Quantitative and Qualitative Disclosures About 
Market Risk is included under the caption "Interest Rate and Currency Risk 
Management" and "Foreign Operations" in Management's Discussion and Analysis 
on pages 8 and 9 of the 1998 annual report to stockholders.

Item 8. Financial Statements and Supplementary Data

The consolidated balance sheet of Union Carbide Corporation and subsidiaries 
at December 31, 1998 and 1997 and the consolidated statements of income, 
stockholders' equity and cash flows for each of the years in the three-year 
period ended December 31, 1998, together with the report thereon of KPMG LLP 
dated January 22, 1999, are contained on pages 20 through 44 of the 1998 
annual report to stockholders.

Quarterly income statement data are contained on page 45 of the 1998 annual 
report to stockholders.

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

Union Carbide has not had any disagreements covered by this item with 
KPMG LLP, its independent auditors.

                                     - 6 -
<PAGE>


                                   Part III

Item 10. Directors and Executive Officers of the Registrant

For background information on the Directors of Union Carbide Corporation whose 
terms are expected to continue after the annual meeting of stockholders and 
persons nominated to become Directors, see pages 7 through 10 of the proxy 
statement for the annual meeting of stockholders to be held on April 28, 1999.

The principal executive officers of the corporation are as follows. Data is as 
of March 25, 1999.


                                                                          Year
                                                                         First
Name                  Age Position                                     Elected
William H. Joyce      63  Chairman of the Board, President and Chief 
                            Executive Officer                             1993
Joseph S. Byck        57  Vice-President                                  1991
Bruce D. Fitzgerald   59  Vice-President, General Counsel and Secretary   1999
James F. Flynn        56  Vice-President                                  1993
Malcolm A. Kessinger  55  Vice-President                                  1991
Lee P. McMaster       56  Vice-President                                  1993
Joseph C. Soviero     60  Vice-President                                  1993
Roger B. Staub        64  Vice-President                                  1993
John K. Wulff         50  Vice-President, Chief Financial Officer and 
                            Controller                                    1988

There are no family relationships between any officers or directors of the 
corporation. There is no arrangement or understanding between any officer and 
any other person pursuant to which the officer was elected an officer. An 
officer is elected by the Board of Directors to serve until the next annual 
meeting of stockholders and until his successor is elected and qualified.

The table on the next page gives a summary of the positions held during at 
least the past five years by each officer. Each of the officers has been 
employed by the corporation for the past five years.

                                     - 7 -
<PAGE>


                               Part III (Cont.)

Name                  Position                                 Years Held

William H. Joyce      Chairman of the Board, President and 
                        Chief Executive Officer                1996 to present
                      President and Chief Executive Officer    1995 to 1995
                      President and Chief Operating Officer    1993 to 1995

Joseph S. Byck        Vice-President                           1991 to present

Bruce D. Fitzgerald   Vice-President, General Counsel and 
                        Secretary                              1999 to present
                      Deputy General Counsel                   1987 to 1998

James F. Flynn        Vice-President                           1993 to present

Malcolm A. Kessinger  Vice-President                           1991 to present

Lee P. McMaster       Vice-President                           1993 to present

Joseph C. Soviero     Vice-President                           1993 to present

Roger B. Staub        Vice-President                           1993 to present

John K. Wulff         Vice-President, Chief Financial Officer 
                        and Controller                         1996 to present
                      Vice-President, Controller and Principal
                        Accounting Officer                     1989 to 1996

See "Section 16(a) Beneficial Ownership Reporting Compliance" on page 21 of 
the proxy statement for the annual meeting of stockholders to be held on April 
28, 1999.


Item 11. Executive Compensation

See pages 17 through 19 of the proxy statement for the annual meeting of 
stockholders to be held on April 28, 1999.


Item 12. Security Ownership of Certain Beneficial Owners and Management

See pages 20 and 21 of the proxy statement for the annual meeting of 
stockholders to be held on April 28, 1999.


Item 13. Certain Relationships and Related Transactions

See page 10 of the proxy statement for the annual meeting of stockholders to 
be held on April 28, 1999.

                                     - 8 -
<PAGE>


                                   Part IV

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

UNION CARBIDE CORPORATION

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

     1.  The consolidated financial statements set forth on pages 20 through 
         43 and the Independent Auditors' Report set forth on page 44 of the 
         1998 annual report to stockholders are incorporated by reference in 
         this Annual Report on Form 10-K.

     2.  The Report on Schedule of KPMG LLP appears on page 10 of this Annual 
         Report on Form 10-K.

     3.  The following schedule should be read in conjunction with the 
         consolidated financial statements incorporated by reference in Item 8 
         of this Annual Report on Form 10-K. Schedules other than those listed 
         have been omitted because they are not applicable.

                                                                Page in this
                                                              Form 10-K Report

         Valuation and Qualifying Accounts (Schedule II), 
         three years ended December 31, 1998                         11


(b)  The corporation filed the following reports on Form 8-K for the three 
     months ended December 31, 1998.  

     1.  Form 8-K dated September 18, 1998, contained the corporation's 
         Computation of Ratio of Earnings to Fixed Charges for the six months 
         ended June 30, 1998 and the years ended December 31, 1997, 1996, 
         1995, 1994 and 1993 and the corporation's press release dated 
         September 18, 1998.

     2.  Form 8-K dated December 8, 1998, contained the corporation's press
         release dated December 8, 1998.


(c)  Exhibits-See Exhibit Index on pages 13 through 16 for exhibits filed with 
     this Annual Report on Form 10-K.

                                     - 9 -
<PAGE>


                               Part IV (Cont.)

                        Report of Independent Auditors

The Board of Directors
Union Carbide Corporation

Under date of January 22, 1999, we reported on the consolidated balance sheets 
of Union Carbide Corporation and subsidiaries as of December 31, 1998 and 
1997, and the related consolidated statements of income, stockholders' equity 
and cash flows for each of the years in the three-year period ended December 
31, 1998, as contained on pages 20 through 43 in the 1998 annual report to 
stockholders. These consolidated financial statements and our report thereon 
are incorporated by reference in the Annual Report on Form 10-K for the year 
1998. In connection with our audits of the aforementioned consolidated 
financial statements, we also have audited the related financial statement 
schedule as listed in Item 14(a)3. This financial statement schedule is the 
responsibility of the corporation'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.


                                                        KPMG LLP

Stamford, Conn.
January 22, 1999

                                    - 10 -
<PAGE>


                                Part IV (Cont.)

                 Schedule II-Valuation and Qualifying Accounts
<TABLE>
<CAPTION>
Union Carbide Corporation and Consolidated Subsidiaries

                                                                           Deductions
                                                                     Items determined
                                                                 to be uncollectible,
                                               Additions                less recovery
                           Balance at  Charged to  Reclassified            of amounts  Balance at
                            beginning   costs and    from other            previously      end of
                            of period    expenses      accounts           written off      period

                                                Millions of dollars, year ended December 31, 1998
<S>                        <C>               <C>           <C>                    <C>         <C>
Allowance for 
  doubtful accounts        $11               $ 3           $ 8                    $ -         $22

                                                Millions of dollars, year ended December 31, 1997
Allowance for 
  doubtful accounts        $10               $ 3           $ -                    $ 2         $11

                                                Millions of dollars, year ended December 31, 1996
Allowance for 
  doubtful accounts        $11               $ 1           $ -                    $ 2         $10
</TABLE>

                                    - 11 -
<PAGE>


                                    Signatures

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


                                        Union Carbide Corporation


March 25, 1999
                                            /s/ John K. Wulff
                                        by: John K. Wulff
                                            Vice-President, Chief Financial 
                                            Officer and Controller


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 
corporation and in the capacities indicated on March 25, 1999.



/s/William H. Joyce          /s/C. Fred Fetterolf      /s/Ronald L. Kuehn, Jr.
William H. Joyce             C. Fred Fetterolf         Ronald L. Kuehn, Jr.
Director, Chairman of        Director                  Director
the Board, President and
Chief Executive Officer


/s/John K. Wulff             /s/Rainer E. Gut          /s/Rozanne L. Ridgway
John K. Wulff                Rainer E. Gut             Rozanne L. Ridgway
Vice-President, Chief        Director                  Director
Financial Officer
and Controller

                             /s/Vernon E. Jordan, Jr.  /s/James M. Ringler
                             Vernon E. Jordan, Jr.     James M. Ringler
                             Director                  Director


                             /s/Robert D. Kennedy      /s/Paul J. Wilhelm
                             Robert D. Kennedy         Paul J. Wilhelm
                             Director                  Director

                                    - 12 -
<PAGE>


                                Exhibit Index

Exhibit No.

 3.1    Amended and Restated Certificate of Incorporation as filed June 25,
        1998 (See Exhibit 3 of the corporation's June 30, 1998 Form 10-Q).

 3.2    By-Laws of the corporation, amended as of December 3, 1996 (See 
        Exhibit 3.2.1 of the corporation's 1996 Form 10-K).

 4.1    Indenture dated as of June 1, 1995, between the corporation and the 
        Chase Manhattan Bank (formerly Chemical Bank), Trustee (See Exhibit 
        4.1.2 to the corporation's Form S-3 effective October 13, 1995, Reg. 
        No. 33-60705).

 4.2    The corporation will furnish to the Commission upon request any other 
        debt instrument referred to in item 601(b)(4)(iii) (A) of Regulation 
        S-K.

 4.3.1  Rights Agreement, dated as of July 26, 1989, as amended and restated 
        as of May 27, 1992, between the corporation and Chase Mellon 
        Shareholder Services Inc. (successor to Manufacturers Hanover Trust 
        Company), as Rights Agent (See Exhibit 4(a) to the corporation's 
        Form 8 filed with the Commission on June 1, 1992, file number 
        1-10297).

 4.3.2  Amendment to Rights Agreement, dated as of December 3, 1996, between 
        the corporation and Chase Mellon Shareholder Services Inc. as 
        Successor Rights Agent (See Exhibit 99.1 of the corporation's Form 8-K 
        dated December 3, 1996).

10.1    Indemnity Agreement dated as of December 8, 1997, between the 
        corporation and James F. Flynn. The Indemnity Agreement filed with the 
        Commission is substantially identical in all material respects, except 
        as to the parties thereto and dates thereof, with Indemnity Agreements 
        between the corporation and each other person who is a director or
        executive officer of the corporation (See Exhibit 10.1 of the
        corporation's 1997 Form 10-K).

10.2.1  1988 Union Carbide Long-Term Incentive Plan.

10.2.2  Amendment to the 1988 Union Carbide Long-Term Incentive Plan effective 
        June 1, 1989 (See Exhibit 10.14.2 of the corporation's 1994 Form 
        10-K).

10.2.3  Amendment to the 1988 Union Carbide Long-Term Incentive Plan effective 
        August 1, 1989 (See Exhibit 10.14.3 of the corporation's 1994 Form 
        10-K).

10.2.4  Resolutions adopted by the Board of Directors of the corporation on 
        February 26, 1992, with respect to stock options granted under the 
        1988 Union Carbide Long-Term Incentive Plan (See Exhibit 10.2.4 of the 
        corporation's 1997 Form 10-K).

10.2.5  Resolutions adopted by the Compensation and Management Development 
        Committee of the Board of Directors of the corporation on June 30, 
        1992, with respect to the 1988 Union Carbide Long-Term 
        Incentive Plan (See Exhibit 10.2.5 of the corporation's 1997 
        Form 10-K).

10.2.6  Amendment to the 1988 Union Carbide Long-Term Incentive Plan effective 
        October 1, 1997 (See Exhibit 10.2.6 of the corporation's 1997 
        Form 10-K).

10.3.1  1983 Union Carbide Bonus Deferral Program (See Exhibit 10.4.1 of the 
        corporation's 1996 Form 10-K).

10.3.2  Amendment to the 1983 Union Carbide Bonus Deferral Program effective 
        January 1, 1992 (See Exhibit 10.3.2 of the corporation's 1997 
        Form 10-K).

10.4.1  1984 Union Carbide Cash Bonus Deferral Program (See Exhibit 10.5.1 of 
        the corporation's 1996 Form 10-K).

10.4.2  Amendment to the 1984 Union Carbide Cash Bonus Deferral Program 
        effective January 1, 1986 (See Exhibit 10.5.2 of the corporation's 
        1996 Form 10-K).

                                    - 13 -
<PAGE>


                             Exhibit Index (Cont.)

Exhibit No.

10.4.3  Amendment to the 1984 Union Carbide Cash Bonus Deferral Program 
        effective January 1, 1992 (See Exhibit 10.4.3 of the corporation's 
        1997 Form 10-K).

10.5.1  Equalization Benefit Plan for Participants of the Retirement Program 
        Plan for Employees of Union Carbide Corporation and its Participating 
        Subsidiary Companies (See Exhibit 10.6.1 of the corporation's 1996 
        Form 10-K).

10.5.2  Amendment to the Equalization Benefit Plan effective January 1, 1994 
        (See Exhibit 10.18.2 of the corporation's 1994 Form 10-K).

10.6.1  Supplemental Retirement Income Plan (See Exhibit 10.7.1 of the 
        corporation's 1996 Form 10-K).

10.6.2  Amendment to the Supplemental Retirement Income Plan effective January 
        1, 1994 (See Exhibit 10.19.3 of the corporation's 1994 Form 10-K).

10.6.3  Amendment to the Supplemental Retirement Income Plan effective January 
        1, 1995 (See Exhibit 10.18.3 of the corporation's 1995 Form 10-K).

10.7    Union Carbide Non-Employee Directors' Compensation Deferral Plan 
        effective February 1, 1997 (See Exhibit 10.7 of the corporation's 
        1997 Form 10-K).

10.8    Severance Compensation Agreement, dated February 10, 1998, between the 
        corporation and Ron J. Cottle. The Severance Compensation Agreement 
        filed with the Commission is substantially identical in all material 
        aspects, except as to the parties thereto and dates thereof, with 
        Agreements between the corporation and other officers and employees of 
        the corporation (See Exhibit 10.8 of the corporation's 1997 
        Form 10-K).

10.9    Resolution adopted by the Board of Directors of the corporation on 
        November 30, 1988, with respect to an executive life insurance program 
        for officers and certain other employees.

10.10   1997 Union Carbide Variable Compensation Plan effective July 1, 1997 
        (See Exhibit 10.10 of the corporation's 1997 Form 10-K).

10.11.1 Union Carbide Corporation Benefits Protection Trust, amended and 
        restated effective August 29, 1997 (See Exhibit 10.11.1 of the 
        corporation's 1997 Form 10-K).

10.11.2 Amendment to the Union Carbide Corporation Benefits Protection Trust 
        effective November 1, 1997 (See Exhibit 10.11.2 of the corporation's 
        1997 Form 10-K).

10.12   Resolutions adopted by the Board of Directors of the corporation on 
        February 24, 1988, with respect to the purchase of annuities to cover 
        liabilities of the corporation under the Equalization Benefit Plan for 
        Participants of the Retirement Program Plan for Employees of Union 
        Carbide Corporation and its Participating Subsidiary Companies and the 
        Supplemental Retirement Income Plan (See Exhibit 10.25 of the 
        corporation's 1994 Form 10-K).

10.13   Resolutions adopted by the Board of Directors of the corporation on 
        June 28, 1989, with respect to the purchase of annuities to cover 
        liabilities of the corporation under the Supplemental Retirement 
        Income Plan (See Exhibit 10.26 of the corporation's 1994 Form 10-K).

10.14.1 Union Carbide Corporation Non-Employee Directors' Retirement Plan (See 
        Exhibit 10.27 of the corporation's 1994 Form 10-K).

10.14.2 Amendment to the Union Carbide Corporation Non-Employee Directors' 
        Retirement Plan effective May 1, 1997 (See Exhibit 10.14.2 of the 
        corporation's 1997 Form 10-K).

10.15.1 1994 Union Carbide Long-Term Incentive Plan (See Exhibit 10.28 of the 
        corporation's 1994 Form 10-K).

                                    - 14 -
<PAGE>


                             Exhibit Index (Cont.)

Exhibit No.

10.15.2 Amendment to the 1994 Union Carbide Long-Term Incentive Plan effective 
        October 1, 1997 (See Exhibit 10.15.2 of the corporation's 1997 
        Form 10-K).

10.16.1 Amendment and Restatement to Union Carbide Compensation Deferral
        Program effective October 1, 1995 (See Exhibit 10.28 of the
        corporation's 1995 Form 10-K).

10.16.2 Amendment to Union Carbide Compensation Deferral Program effective 
        January 1, 1995 (See Exhibit 10.17.2 of the corporation's 1996 Form 
        10-K).

10.16.3 Amendment to Union Carbide Compensation Deferral Program effective 
        December 31, 1996 (See Exhibit 10.17.3 of the corporation's 1996 Form 
        10-K).

10.17   Excess Long-Term Disability Plan effective January 1, 1994 (See 
        Exhibit 10.30 of the corporation's 1994 Form 10-K).

10.18   1995 Union Carbide Performance Incentive Plan (See Appendix A of the 
        corporation's proxy statement for the annual meeting of stockholders 
        held on April 26, 1995).

10.19.1 1997 Union Carbide Long-Term Incentive Plan (See Appendix A of the 
        corporation's proxy statement filed with the Commission March 12, 
        1997, file number: 001-01463).

10.19.2 Amendment to the 1997 Union Carbide Long-Term Incentive Plan effective 
        April 23, 1997 (See Exhibit 10.19.2 of the corporation's 1997 
        Form 10-K).

10.20   1997 Stock Option Plan for Non-Employee Directors of Union Carbide 
        Corporation (See Appendix B of the corporation's proxy statement filed 
        with the Commission March 12, 1997, file number: 001-01463).

10.21   1997 Union Carbide Corporation EPS Incentive Plan (See Exhibit 10.21 
        of the corporation's 1997 Form 10-K).

10.22   The Mid-Career Hire Plan for Employees of Union Carbide Corporation 
        and Its Participating Subsidiary Companies, effective December 3, 
        1996 (See Exhibit 10.22 of the corporation's 1997 Form 10-K).

10.23.1 Completion Guarantee dated September 15, 1996 by the corporation and 
        its partner, Petrochemical Industries Company K.S.C., for the benefit 
        of certain banks with respect to construction of a petrochemicals 
        complex in Kuwait (See Exhibit 10.1 of the corporation's Form 10-Q for 
        the quarter ended September 30, 1996).

10.23.2 Definitions Agreement dated September 15, 1996 among the corporation 
        and various parties relating to Exhibit 10.23.1 (See Exhibit 10.2 of 
        the corporation's Form 10-Q for the quarter ended September 30, 1996).

13      The corporation's 1998 annual report to stockholders (such report, 
        except for those portions which are expressly referred to in this Form 
        10-K, is furnished for the information of the Commission and is not 
        deemed "filed" as part of the Form 10-K).

21      Subsidiaries of the corporation.

23      Consent of KPMG LLP.

27.1    Financial Data Schedule for the year ended December 31, 1998.

27.2    Restated Financial Data Schedule for the years ended December 31, 1997
        and 1996.
                                    -16-
<PAGE>

27.3    Restated Financial Data Schedule for the three months ended March 31,
        1997, the six months ended June 30, 1997 and the nine months ended
        September 30, 1997.


Wherever an exhibit listed above refers to another exhibit or document (e.g., 
"See Exhibit 6 of . . ."), that exhibit or document is incorporated herein by 
such reference.

A copy of any exhibit listed above may be obtained on written request to the 
Secretary's Department, Union Carbide Corporation, 39 Old Ridgebury Road, 
Danbury, CT 06817-0001. The charge for furnishing any exhibit is 25 cents per 
page plus mailing costs.

                                    - 16 -
<PAGE>


UC-1729
Printed in USA

<PAGE>





                                                              Exhibit 10.2.1


























                               1988 UNION CARBIDE

                            LONG-TERM INCENTIVE PLAN

               1988 UNION CARBIDE LONG-TERM INCENTIVE PLAN

Section 1:  Purpose.  The purpose of the 1988 Union Carbide Long-Term 
Incentive Plan (hereinafter referred to as the "Plan") is to (a) provide 
incentives and rewards to those employees who are in a position to contribute 
to the long-term growth and profitability of the Corporation; (b) assist the 
Corporation and its subsidiaries and affiliates in attracting, retaining, and 
motivating employees with experience and ability; and (c) make the 
Corporation's compensation program competitive with those of other major 
employers.

Section 2:  Administration.  The Plan shall be administered by a Committee of 
the Board of Directors (hereinafter referred to as the "Committee") appointed 
by the Board.  Members of the Committee are not eligible to participate in the 
Plan and no member may have been eligible within one year prior to serving on 
the Committee.  The Committee shall interpret the Plan, establish 
administrative regulations to further the purpose of the Plan, authorize 
awards to eligible participants and take any other action necessary for the 
proper operation of the Plan.  All decisions and acts of the Committee shall 
be final and binding upon all participants.  The Committee may set the option 
price, the number of options to be awarded and the number of shares to be 
awarded out of the total number of shares available for award, and delegate to 
the Chief Executive Officer of the Corporation the right to allocate awards 
among Employees who are not officers or directors of the Corporation within 
the meaning of the Exchange Act, such delegation to be subject to such terms 
and conditions as the Committee in its discretion shall determine.

Section 3:  Participation.  This Plan is for Union Carbide Corporation and its 
subsidiaries and affiliates.  Any Employee of Union Carbide Corporation or a 
subsidiary or affiliate serving in a managerial, administrative, or 
professional position which is recommended to, and authorized by, the 
Committee shall be eligible to participate in the Plan.

Section 4:  Awards.  Awards under this Plan may be stock option awards, stock 
appreciation rights, exercise payment rights, grants of stock, or performance 
awards.  The total number of shares of stock (including Restricted Stock, if 
any) optioned or granted under this Plan during the five year period of the 
Plan shall not exceed 15,000,000 shares.  No participant may be granted, in 
the aggregate, awards which would result in the participant receiving more 
than 10% of the maximum number of shares available for award under the Plan.  
Solely for the purpose of computing the total number of shares of stock 
optioned or granted under this Plan, there shall not be counted any shares 
which have been forfeited and any shares covered by an option which, prior to 
such computation, has terminated in accordance with its terms or has been 
cancelled by the Participant or the Corporation.  In the event of any change 
in the outstanding shares of the Corporation by reason of any stock split, 
stock dividend, recapitalization, merger, consolidation, combination or 
exchange of shares or other similar corporate change or in the event of any 
special distribution to the stockholders, the Committee shall make such 
equitable adjustments in the number of shares and prices per share applicable 
to options then outstanding and in the number of shares which are available 
thereafter for Stock Option Awards or other awards, both under the Plan as a 
whole and with respect to individuals, as the Committee determines are 
necessary and appropriate.  Any such adjustment shall be conclusive and 
binding for all purposes of the Plan.

Section 5:  Stock Options.
          5.1:  The Corporation may award options to purchase common stock or 
Restricted Stock of the Corporation (hereinafter referred to as "Stock Option 
Awards") to such eligible Employees as the Committee, or the Chief Executive 
Officer of the Corporation, if the Committee in its discretion delegates the 
right to allocate awards pursuant to Section 2, authorizes and under such 
terms as the Committee establishes. The Committee shall determine with respect 
to each Stock Option Award whether a participant is to receive an Incentive 
Stock Option or a Non-Qualified Stock Option.
          5.2:  The option price of each share of stock subject to a Stock 
Option Award shall be the closing price of the common stock of the Corporation 
on the date the award is authorized as reported in the New York Stock 
Exchange-Composite Transactions.
          5.3:  A stock option by its terms shall not be transferable by the 
participant other than by will or the laws of descent and distribution, shall 
be of no more than 10 years' duration, and shall be exercisable only after the 
earlier of: (i) such period of time as the Committee shall determine but in no 
event less than one year following the date of grant of such award; (ii) the 
participant's death; (iii) the participant's Retirement; or (iv) a Change in 
Control of the Corporation, but only to the extent permitted under Section 
5.5.  An option is exercisable during a participant's lifetime only by the 
participant or the participant's legal guardian or legal representative.
          An option is only exercisable by a participant while the participant 
is in active employment with the Corporation except (i) during a nine-month 
period commencing on the date of a participant's death, (ii) in the case of a 
participant's Retirement, (iii) during a three-year period commencing on the 
date of a participant's termination of employment by the Corporation other 
than for cause, but only to the extent permitted under Section 5.5, (iv) 
during a three-year period commencing on the date of termination, by the 
participant or the Corporation, of employment after a Change in Control of the 
Corporation, unless such termination of employment is for cause, but only to 
the extent permitted under Section 5.5, or (v) if the Committee decides that 
it is in the best interest of the Corporation to permit individual exceptions.  
An option may not be exercised pursuant to this paragraph after the expiration 
date of the option.
          5.4:  An option may be exercised with respect to part or all of the 
shares subject to the option by giving written notice to the Corporation of 
the exercise of the option.  The option price for the shares for which an 
option is exercised shall be paid on or within ten business days after the 
date of exercise in cash, in whole shares of common stock of the Corporation 
owned by the participant prior to exercising the option, or in a combination 
of cash and such shares of common stock.  The value of any share of common 
stock delivered in payment of the option price shall be its Market Price on 
the date the option is exercised.
          5.5:  Clause (iv) of the first sentence and clauses (iii) and (iv) 
of the third sentence of Section 5.3 herein shall not apply to a stock option 
held by a 'disqualified individual' within the meaning of Section 280G(c) of 
the Code who is a party to an employment contract with the Corporation that 
grants such person severance benefits in the event that the employment is 
terminated subsequent to a change in control of the Corporation, or who is 
entitled to receive benefits pursuant to a severance plan in the event that 
the participant's employment is terminated after a change in control to the 
extent that the exercise of the option would cause such person to incur the 
tax prescribed in Section 4999 of the Code on 'excess parachute payments' 
within the meaning of Section 280G(b) of the Code.
          5.6:  In order to enable the Corporation to meet any applicable 
federal, state or local withholding tax requirements arising as a result of 
the exercise of a stock option, a participant shall pay the Corporation the 
amount of tax to be withheld or may elect to satisfy such obligation as 
follows: (i) in the case of a participant who is subject to Section 16(b) of 
the Exchange Act and who does not make an election under Section 83(b) of the 
Code, by delivering to the Corporation whole shares of common stock of the 
Corporation which were delivered to the participant pursuant to the exercise 
of the option for which the tax is being withheld, other shares of common 
stock of the Corporation owned by the participant prior to exercising the 
option, or a combination of cash and such shares of common stock, or (ii) in 
the case of all other participants, by having the Corporation withhold shares 
that otherwise would be delivered to the participant pursuant to the exercise 
of the option for which the tax is being withheld, by delivering to the 
Corporation other shares of common stock of the Corporation owned by the 
participant prior to exercising the option, or by making a payment to the 
Corporation consisting of a combination of cash and such shares of common 
stock.  Such an election shall be subject to the following: (a) the election 
shall be made in such manner as may be prescribed by the Committee and the 
Committee shall have the right, in its discretion, to disapprove such 
election; (b) the election shall he made prior to the date to be used to 
determine the tax to be withheld and shall be irrevocable; (c) if the 
participant is a person subject to Section 16 of the Exchange Act, the 
election shall not be made within six months after the grant of the option, 
except that this limitation shall not apply in the event that the participant 
dies or becomes disabled prior to the expiration of such six month period, and 
shall be made either at least six months prior to the date to be used to 
determine the tax to be withheld or during a ten day period of the same type 
as is described in Section 6.5 hereof.  The value of any share of common stock 
to be withheld by the Corporation or delivered to the Corporation pursuant to 
this Section 5.6 shall be the Market Price on the date to be used to determine 
the amount of tax to be withheld.
          5.7:  The Committee may, in its discretion, grant to holders of 
stock options the right to receive with respect to each share covered by an 
option payments of amounts equal to the regular cash dividends paid to holders 
of the Company's common stock during the period that the option is outstanding 
(such payments are hereinafter referred to as "Dividend Payments").
          5.8:  The aggregate fair market value of all shares of stock with 
respect to which Incentive Stock Options are exercisable for the first time by 
a participant in any one calendar year, under this Plan or any other stock 
option plan maintained by the Corporation (or by any subsidiary or parent of 
the Corporation), shall not exceed $100,000.  The fair market value of such 
shares of stock shall be the mean of the high and low prices of the common 
stock of the Corporation as reported in the New York Stock Exchange - 
Composite Transactions on the date the related stock option is granted (or on 
the next preceding day such stock was traded on a stock exchange included in 
the New York Stock Exchange - Composite Transactions if it was not traded on 
any such exchange on the date the related stock option is granted).

Section 6:  Stock Appreciation Rights.
          6.1:  The Committee may, in its discretion, grant stock appreciation 
rights to Employees who have received a Stock Option Award.  The stock 
appreciation rights may relate to such number of shares, not exceeding the 
number of shares that the Employee may acquire upon exercise of a related 
stock option, as the Committee determines in its discretion.  Upon exercise of 
a stock option by an Employee, the stock appreciation rights relating to the 
shares covered by such exercise shall terminate.  Upon termination or 
expiration of a stock option, any unexercised stock appreciation rights 
related to that option shall also terminate.  Upon exercise of stock 
appreciation rights, such rights and the related option to the extent of an 
equal number of shares shall terminate.
          6.2:  The Committee at its discretion may revoke at any time any 
unexercised stock appreciation rights granted to an Employee under this Plan, 
without compensation to such Employee.  Revocation of an Employee's stock 
appreciation rights under this section shall not affect any related stock 
options granted to the Employee under this Plan.
          6.3:  Upon an Employee's exercise of some or all of the Employee's 
stock appreciation rights, the Employee shall receive an amount equal to the 
value of the Stock Appreciation for the number of rights exercised, payable in 
cash, common stock, Restricted Stock, or a combination thereof, at the 
discretion of the Committee.
          6.4:  The Committee shall have the discretion either to determine 
the form in which payment of a stock appreciation right will be made, or to 
consent to or disapprove the election of the Employee to receive cash in full 
or partial settlement of the right.  Such consent or disapproval may be given 
at any time before or after the election to which it relates.  Notwithstanding 
the foregoing provision, if an Employee exercises a stock appreciation right 
during the 60-day period commencing on the date of a Change in Control of the 
Corporation, the form of payment of such stock appreciation right shall be 
cash provided that such stock appreciation right was granted at least six 
months prior to the date of exercise, and shall be common stock if such stock 
appreciation right was granted six months or less prior to the date of 
exercise. Provided, however, that the previous sentence shall not apply to a 
'disqualified individual' within the meaning of Section 280G(c) of the Code 
who is a party to an employment contract with the Corporation that grants such 
person severance benefits in the event that his employment is terminated 
subsequent to a Change in Control of the Corporation or who is entitled to 
receive benefits pursuant to a severance plan in the event that his employment 
is terminated after a Change in Control of the Corporation, to the extent that 
the exercise of the stock appreciation right would cause such participant to 
incur the tax prescribed in Section 4999 of the Code on 'excess parachute 
payments' within the meaning of Section 280G(b) of the Code.
          6.5:  Except in the case of a stock appreciation right that was 
granted at least six months prior to exercise and that is exercised for cash 
during the 60-day period commencing on the date of a Change in Control of the 
Corporation, any election by the Employee to receive cash in full or partial 
settlement of the stock appreciation right, as well as any exercise by the 
Employee of the Employee's stock appreciation right for such cash, shall be 
made only during the period beginning on the third business day following the 
date of release of the quarterly or annual summary statements of sales and 
earnings and ending on the twelfth business day following such date.
          6.6:  Settlement for exercised stock appreciation rights may be 
deferred by the Committee in its discretion to such date and under such terms 
and conditions as the Committee may determine.
          6.7:  A stock appreciation right is only exercisable during the 
period when the stock option to which it is related is also exercisable.

Section 7:  Exercise Payments.
          7.1:  The Committee may, in its discretion, grant to holders of 
stock options the right to receive Exercise Payments relating to such number 
of shares covered by the holder's stock options as the Committee determines in 
its discretion. Exercise Payments shall be reduced by the total amount which 
may have been received as Dividend Payments pursuant to Section 5.7 with 
respect to the stock option that is being exercised.
          7.2:  At the discretion of the Committee, the Exercise Payment may 
be made in cash, common stock, Restricted Stock, or a combination thereof; 
provided, however, Exercise Payments may be made in cash to participants 
subject to Section 16(b) of the Exchange Act only if they exercise the related 
stock option during a period beginning on the third business day following the 
date of release of the quarterly or annual summary statements of sales and 
earnings and ending on the twelfth business day following such date.  Exercise 
Payments shall be paid within 20 business days following the exercise of a 
related stock option; provided, however, that payment may be deferred by the 
Committee in its discretion to such date and under such terms and conditions 
as the Committee may determine.
          7.3:  Exercise Payments shall be paid only upon the exercise of 
related stock options which are exercised by the holder while an active 
Employee; provided, however, that in the case of an option holder's death or 
Retirement, Exercise Payments will be paid if such related stock options are 
exercised within nine months after death or three months after Retirement, as 
the case may be, but before the expiration of the stock option's term.

Section 8:  Grants of Stock.
          8.1:  The Committee may grant, either alone or in addition to other 
awards granted under the Plan, shares of stock or Restricted Stock to such 
eligible Employees as the Committee, or the Chief Executive Officer of the 
Corporation, if the Committee in its discretion delegates the right to 
allocate awards pursuant to Section 2, authorizes and under such terms as the 
Committee establishes.  The Committee, in its discretion, may also make a cash 
payment to a participant granted shares of stock or Restricted Stock under the 
Plan to allow such Participant to satisfy tax obligations arising out of 
receipt of the stock or Restricted Stock.

Section 9:  Performance Awards.
          9.1:  The Committee may grant, either alone or in addition to other 
awards granted under the Plan, awards of stock and other awards that are 
valued in whole or in part by reference to, or are otherwise based on, the 
market value of the common stock, Restricted Stock or other securities of the 
Corporation ("Performance Awards") to such eligible Employees as the 
Committee, or the Chief Executive officer of the Corporation, if the Committee 
in its discretion delegates the right to allocate awards pursuant to Section 
2, authorizes and under such terms as the Committee establishes.  Performance 
Awards may be paid in common stock, Restricted Stock or other securities of 
the Company, cash or any other form of property as the Committee shall 
determine.  Performance Awards shall entitle the participant to receive an 
award if the measures of performance established by the Committee are met.  
The measures of performance shall be established by the Committee in its 
absolute discretion.
          9.2:  The Committee shall determine the times at which Performance 
Awards are to be made and all conditions of such awards.
          9.3: The participant shall not be permitted to sell, assign, 
transfer, pledge or otherwise encumber shares received pursuant to this 
Section 9 prior to the date on which any applicable restriction or performance 
period established by the Committee lapses.

Section 10:  General Provisions.
          10.1:  Any assignment or transfer of any awards without the written 
consent of the Corporation shall be null and void.
          10.2: Nothing contained herein shall require the Corporation to 
segregate any monies from its general funds, or to create any trusts, or to 
make any special deposits for any immediate or deferred amounts payable to any 
participant for any year.
          10.3:  Participation in this Plan shall not affect the Corporation's 
right to discharge a participating Employee.
          10.4:  Restricted Stock may not be sold or transferred by the 
participant until any restrictions that have been established by the Committee 
have lapsed.
          10.5:  The participant shall have, with respect to Restricted Stock, 
all of the rights of a stockholder of the Corporation, including the right to 
vote the shares and the right to receive any dividends, unless the Committee 
shall otherwise determine.
          10.6:  Upon a participant's termination of employment during the 
period any restrictions are in effect, all Restricted Stock shall be forfeited 
without compensation to the participant unless the Committee decides that it 
is in the best interest of the Corporation to permit individual exceptions.

Section 11:  Definitions.
          11.1:  A 'Change in Control of the Corporation' shall be deemed to 
occur in the event that any of the following circumstances have occurred:
                    (i)     	if a change in control of the Corporation would 
be required to be reported in response to Item 1(a) of the Current Report on 
Form 8-X, as in effect on the date hereof, pursuant to Sections 13 or 15(d) of 
the Exchange Act whether or not the Corporation is then subject to such 
reporting requirement;

                    (ii)     any 'person' or 'group' within the meaning of 
Sections 13(d) and 14(d) (2) of the Exchange Act (x) becomes the 'beneficial 
owner' as defined in Rule 13d-3 under the Exchange Act of more than 35% of the 
then outstanding voting securities of the Corporation, otherwise than through 
a transaction or transactions arranged by, or consummated with the prior 
approval of, the Board or (y) acquires by proxy or otherwise the right to vote 
for the election of directors, for any merger or consolidation of the 
Corporation or for any other matter or question, more than 35% of the then 
outstanding voting securities of the Corporation, otherwise than through an 
arrangement or arrangements consummated with the prior approval of the Board;

                    (iii)     if during any period of twenty-four consecutive 
months (not including any period prior to the adoption of this section), 
Present Directors and/or New Directors cease for any reason to constitute a 
majority of the Board.  For purposes of this subsection (iii), 'Present 
Directors' shall mean individuals who at the beginning of such consecutive 
twenty-four month period were members of the Board and 'New Directors' shall 
mean any director whose election by the Board or whose nomination for election 
by the Corporation's stockholders was approved by a vote of at least two-
thirds of the Directors then still in office who were Present Directors or New 
Directors; or

                    (iv)     any 'person' or 'group' within the meaning of 
Sections 13(d) and 14(d) (2) of the Exchange Act that is the 'beneficial 
owner' as defined in Rule 13d-3 under the Exchange Act of 20% or more of the 
then outstanding voting securities of the Corporation commences soliciting 
proxies.

          11.2:  "Code" means the Internal Revenue Code of 1986, as now or 
hereafter amended.
          11.3:  "Employee" means all employees of the Corporation or of a 
subsidiary or affiliate of the Corporation participating in the Plan, 
including officers of the Corporation, as well as officers of the Corporation 
who are also directors of the Corporation.  However, an individual who is a 
member of the Committee shall not be an "employee" for purposes of this Plan.
          11.4:  "Exchange Act" shall mean the Securities Exchange Act of 
1934, as amended.
          11.5:  "Exercise Payment" is a payment upon the exercise of a stock 
option of an amount determined by the Committee in its discretion, which 
amount shall not be greater than 60% of the excess of the Market Price over 
the option price of the stock acquired upon the exercise of the option.
          11.6:  "Incentive Stock Option" means any stock option granted 
pursuant to this Plan which is designated as such by the Committee and which 
complies with Section 422A of the Code.
	          11.7:  "Market Price" is the mean of the high and low prices of the 
common stock of the Corporation as reported in the New York Stock Exchange-
Composite Transactions on the date the option or stock appreciation right is 
exercised (or on the next preceding day such stock was traded on a stock 
exchange included in the New York Stock Exchange-Composite Transactions if it 
was not traded on any such exchange on the date the option or stock 
appreciation right is exercised), except that in the case of a stock 
appreciation right that is exercised for cash during the first three days of 
the ten-day period set forth in Section 6.5, "Market Price" is the highest 
daily closing price of the common stock of the Corporation as reported in the 
New York Stock Exchange-Composite Transactions during such ten-day period.  
Notwithstanding the foregoing provisions, if a stock appreciation right is 
exercised during the 60-day period commencing on the date of a change in 
control of the Corporation, the Market Price for purposes of determining the 
stock appreciation shall be the highest of (1) the market price of the common 
stock of the Corporation, as determined under the preceding sentence; (2) the 
highest market price of a share of the common stock of the Corporation during 
the period commencing on the ninetieth day preceding the date of exercise of 
the stock appreciation right and ending on the date of exercise of the stock 
appreciation right; (3) the highest price per share of common stock of the 
Corporation shown on Schedule 13D or an amendment thereto filed pursuant to 
Section 13(d) of the Securities Exchange Act of 1934 by any person holding 35% 
of the combined voting power of the Corporation's then outstanding voting 
securities; or (4) the highest price paid or to be paid per share of common 
stock of the Corporation pursuant to a tender or exchange offer as determined 
by the Committee.  Provided, however, that the previous sentence shall not 
apply to a 'disqualified individual' within the meaning of Section 280G(c) of 
the Code if the exercise of the stock appreciation right would cause such 
participant to incur the tax prescribed in Section 4999 of the Code on 'excess 
parachute payments' within the meaning of Section 280G(b) of the Code.
          11.8:  "Non-Qualified Stock Option" means any stock option granted 
pursuant to this Plan which is not an Incentive Stock Option.
          11.9:  "Retirement" shall mean retirement from employment by the 
Corporation or a subsidiary or affiliate with the right to receive immediately 
a non-actuarially reduced pension under the Corporation's Retirement Program.
          11.10:  "Restricted Stock" means stock of the Corporation subject to 
restrictions on the transfer of such stock, conditions of forfeitability of 
such stock, or any other limitations or restrictions as determined by the 
Committee.
          11.11:  "Stock Appreciation" shall be based on the excess of the 
Market Price of the common stock over the option price of the related option 
stock, as determined by the Committee.

Section 12:  Amendment, Suspension, or Termination.
          12.1:  The Board of Directors may suspend, terminate, or amend the 
Plan, including but not limited to such amendments as may be necessary or 
desirable resulting from changes in the federal income tax laws and other 
applicable laws, but may not, without approval by the holders of a majority of 
all outstanding shares entitled to vote on the subject at a meeting of 
stockholders of Union Carbide Corporation, increase the total number of shares 
of stock that may be optioned or granted under this Plan.
          12.2:  This Plan is intended to comply with the requirements of Rule 
16b-3 under the Exchange Act, as applicable during the term of the Plan.  
Should the requirements of Rule 16b-3 change, the Board of Directors may amend 
this Plan to comply with the requirements of that rule or its successor 
provision or provisions.

Section 13:  Effective Date and Duration of the Plan.
	This Plan shall be effective following approval by the stockholders of the 
Corporation.  No award shall be granted under this Plan for any year 
commencing on or after January l, 1994.



 

 




                                                                Exhibit 10.9

                 RESOLUTIONS ADOPTED BY THE BOARD OF DIRECTORS OF 
                  UNION CARBIDE CORPORATION ON NOVEMBER 30, 1988
                WITH RESPECT TO AN EXECUTIVE LIFE INSURANCE PROGRAM 
                    FOR OFFICERS AND CERTAIN OTHER EMPLOYEES

          RESOLVED, that the proper officers of the Corporation be, and they 
hereby are, authorized to adopt an executive life insurance program for 
officers and certain other employees effective on or after January 1, 1989 
providing for the following:  a death benefit during active employment equal 
to one or two times such employee's current salary and a post-retirement 
death benefit equal to one or two times salary depending upon the 
organizational position occupied by the participant immediately prior to 
retirement with the death benefit adjusted periodically to reflect increases 
in the employee's salary; the payment by the employee of that portion of the 
annual premium for the insurance policy issued pursuant to the program equal 
to the amount that such employee would have paid under the Corporation's 
basic life insurance program; the payment by the Corporation of the balance 
of the premium; and the right of the Corporation, evidenced by a written 
agreement between the Corporation and the employee, to recoup its premium 
payments (i) out of the death benefits under the policy in the event the 
employee dies while an employee of the Corporation(ii) from the cash value in 
the policy after the employee attains age 65 or 10 years have elapsed since 
issuance of the policy, whichever is later, or (iii) by surrender of the 
policy or through reimbursement by the employee in the event the employee's 
participation in the program ceases for some other reason.


                                                                                


                                                                  Exhibit 13

                        Union Carbide Corporation
                           1998 Annual Report



(The cover)

Union Carbide Corporation
1998 Annual Report

<PAGE>


(Inside front cover)

Table of Contents

Financial Highlights/At a Glance
   1  Summary comparison of 1998 and 1997 results
Chairman's Letter
   2  Bill Joyce on performance in 1998, strategic objectives 
      and long-term outlook
Principal Products & Services
   4  Description of the Specialties & Intermediates and 
      Basic Chemicals & Polymers segments
Chemical Glossary
   6  Chemicals and polymers used in Carbide's businesses
Management's Discussion & Analysis
   7  Results of Operations
  16  Liquidity, Capital Resources and Other Financial Data
  17  Debt Ratios 
Selected Financial Data
  18  Summary financial history of the past 11 years
Financial Statements 
  20  Consolidated Balance Sheet
  21  Consolidated Statement of Income
  22  Consolidated Statement of Stockholders' Equity
  24  Consolidated Statement of Cash Flows
  25  Notes to Financial Statements
  44  Management's Statement of Responsibility 
      for Financial Statements
  44  Independent Auditors' Report
Quarterly Data
  45  Summary comparison of quarterly 1998 and 1997 results
Corporate Information
  46  Important dates, names, addresses, telephone numbers 
      and other information
Directors and Corporate Officers
  47  List of directors, corporate officers and 
      other senior management
Union Carbide Around the World
  48  List of worldwide locations
Definition of Terms
  48  Definition of nonchemical terms

Cautionary statement: All statements in this annual report that do not reflect 
historical information are forward-looking statements, within the meaning of 
the Private Securities Litigation Reform Act of 1995 (as amended). Forward-
looking statements include statements concerning plans; objectives; 
strategies; anticipated future events or performance; sales; cost, expense and 
earnings expectations; the Year 2000 issue; the euro; interest rate and 
currency risk management; the chemical markets in 1999 and beyond; cost 
reduction targets; the corporation's share price; earnings and profitability 
targets; development, production and acceptance of new products and process 
technologies; ongoing and planned capacity additions and expansions; joint 
ventures; Management's Discussion & Analysis; and any other statements that do 
not reflect historical information. Such forward-looking statements are 
subject to risks and uncertainties. Important factors that could cause actual 
results to differ materially from those discussed in such forward-looking 
statements include the supply/demand balance for the corporation's products; 
customer inventory levels; competitive pricing pressures; feedstock 
availability and costs; changes in industry production capacities and 
operating rates; currency exchange rates; interest rates; global economic 
conditions, particularly in Asia and Latin America; disruption in 
transportation facilities; competitive technology positions; failure by the 
corporation to achieve technology objectives, achieve cost reduction targets 
or complete projects on schedule and on budget; and inability to obtain new 
customers or retain existing ones.

<PAGE>


Financial Highlights

<TABLE>
<CAPTION>
Dollar amounts in millions 
  (except per share figures)                     1998      1997  % Change
For the Year
<S>                                            <C>       <C>          <C>
Net sales                                      $5,659    $6,502       (13)
Operating profit                                  803     1,045       (23)
Income before cumulative effect of 
  change in accounting principle                  403       676       (40)
  Per common share - basic                       2.98      5.02       (41)
  Per common share - diluted                     2.91      4.53       (36)
Net income - common stockholders                  403       652       (38)
  Per common share - basic                       2.98      4.89       (39)
  Per common share - diluted                     2.91      4.41       (34)
Cash dividends on common stock                    122       100        22
  Per common share                               0.90    0.7875        14
Capital expenditures                              782       755         4
At Year-End
Total assets                                   $7,291    $6,964         5
Total debt                                      2,222     1,887        18
Stockholders' equity                            2,449     2,348         4
  Per common share                              18.46     17.15         8
Common shares outstanding (thousands)         132,686   136,944        (3)
Common stockholders of record                  45,775    47,713        (4)
Employees                                      11,627    11,813        (2)
</TABLE>

At a Glance
Union Carbide Corporation is a worldwide chemicals and polymers company. The 
company possesses many of the industry's most advanced process and catalyst 
technologies and some of the most cost-efficient, large-scale production 
facilities in the world. In addition to its consolidated operations, the 
corporation participates in partnerships and corporate joint ventures whose 
combined net sales totaled approximately $4.1 billion in 1998.

Union Carbide operates two business segments:
Specialties & Intermediates, which accounted for 73 percent of customer 
revenues in 1998, produces a broad range of products, including specialty 
polyolefins used in wire and cable insulation; surfactants for industrial 
cleaners; catalysts for the manufacture of polymers; acrolein and derivatives; 
water-soluble polymers; cellulose-, glucose- and lanolin-based materials for 
personal care products; specialty coatings; acrylic and vinyl acrylic latex 
used in paints and adhesives; solvents; vinyl acetate monomer, and ethylene 
oxide derivatives. This segment also licenses olefins-based technologies and 
offers other specialized technology licensing and services.

Basic Chemicals & Polymers converts various hydrocarbon feedstocks, 
principally liquefied petroleum gases and naphtha, into the basic building-
block chemicals ethylene and propylene (also known as olefins), which are in 
turn converted to polyethylene (the world's most widely used plastic), 
polypropylene (one of the world's fastest-growing plastics), and ethylene 
oxide and ethylene glycol (used to make polyester fiber, film and resin, and 
automotive antifreeze). This segment provides ethylene, propylene, ethylene 
oxide and ethylene glycol to the Specialties & Intermediates segment.

Union Carbide's leading end markets as a percentage of sales are:
  Paints, coatings and adhesives        22
  Packaging and consumer plastics       18
  Wire and cable                        14
  Textile                                7
  Household and personal care            7
  Automotive, including antifreeze       5
  Agriculture and food                   4
  Oil and gas                            3
  Industrial cleaners                    2

                                     - 1 -
<PAGE>


(Contained in the left hand margin is a picture of William H. Joyce, Chairman, 
President and Chief Executive Officer.)

Chairman's Letter

The year just ended was a tough one to be in the chemical business. The 
cyclical downturn already under way as the year began accelerated faster in 
1998 than many had anticipated. 
  At year-end 1998, prices of commodity chemicals and plastics had fallen more 
than 30 percent from the beginning of the year. Margins for those products 
declined during the year, and so did earnings. By year-end, average commodity 
chemical margins had shrunk to levels not seen since 1993, the trough of the 
last chemical industry business cycle.
  Asia's already foundering economies curtailed chemical exports to that key 
market in 1998, further aggravating the global supply/demand imbalance. A 
strong dollar only worsened the export picture. 
  Union Carbide's results reflected the problems. Net sales declined 13 
percent from the prior year, to $5.7 billion. Net income available to common 
stockholders declined 38 percent, to $403 million, and diluted earnings per 
share fell 34 percent, to $2.91. 
  After strong, double-digit earnings improvement in the early through mid-
90s, growth of our Specialties & Intermediates (S&I) segment lost momentum. 
Segment earnings from operations showed little improvement in 1998, due mainly 
to the Asian crisis. This greatly affected Wall Street's outlook for our 
stock. Although Carbide stock substantially under-performed the major stock 
averages, its performance, virtually flat for the year, exceeded the S&P 
chemicals index, which fell 8.3 percent. 
  No one can say for certain when chemical markets will recover. But in the 
meantime, Carbiders will be working hard to repeat the dramatic turnaround 
they achieved in the early 90s, when Wall Street was similarly pessimistic 
about Carbide's prospects going into the low point of the last chemical 
business cycle. 
  Throughout all of our businesses, Carbide people concentrated on increasing 
volume and cutting costs. For several years our performance exceeded 
everyone's expectations and our stock performance led the Dow industrials.
  Although times have been hard lately across the industry, none of us is 
satisfied with Carbide's performance in recent years. We are also convinced 
that Carbide has the potential, and the means, for substantial improvement. 
  First, we have all the capacity we need for rapid volume growth. We've added 
nearly 6 billion pounds of capacity since 1994, much of it underused last 
year. Moreover, it is highly cost-effective capacity based on Carbide's 
proprietary process technologies and should make a substantial contribution to 
results when operating rates return to normal.
  With this extra capacity already in hand, Carbiders know that we need to 
outsell and outperform competitors and to convince customers that, in Carbide, 
they have the industry's most efficient and reliable supplier. 

Intensified Focus on Cost Reduction
In addition to growth potential, we also believe that our intensified focus on 
cost reduction should enable Carbide's earnings to begin their recovery even 
before the chemical business cycle turns up. Carbide people have exceeded our 
cost reduction expectations in virtually every year since we began to 
implement our profit improvement initiatives, and they did so again in 1998. 
  Our cost reduction and profit improvement program is well ahead of schedule 
on the way to our $1.1 billion savings target by the year 2000. Our redoubled 
efforts to control expenses should see more of those savings reach the bottom 
line, and we continue to look for new opportunities to raise the target.
  Carbide will be operating in a very tough business environment for the next 
year or two. Although we've not abandoned our Year 2000 earnings target of 
$4.00 per share, reaching it will be a considerable challenge. And barring 
some dramatic upturn in world chemical markets, which few expect to happen 
soon, Carbide does not expect to earn the target $4.00 in 1999. But we'll be 
in a much better position to make the most of the difficult conditions we 
anticipate, having dealt with several issues and projects whose costs were a 
further drain on 1998 earnings. 
  For one, our new ethylene propylene rubber (EPR) facility, which had been 
out of service for the year for major engineering modifications, was up and 
running at year-end. Given the facility's unique competitive advantages, we 
expect EPR sales to grow rapidly and the business to begin generating 
operating profits by year-end. 
  Our Taft olefins facility, which was out of service for much of the second 
half of 1998 to complete an expansion and scheduled maintenance, should be 
operating for the full year in 1999. And we believe we have the operating 
problems behind us that extended startup and curtailed production at our 
EQUATE joint venture in Kuwait. 
  Earnings should also benefit in 1999 from a decline in costs for 
implementing Powernet, our information technology initiative under way for the 
past several years. In addition to correcting Year 2000 systems problems, 
Powernet will improve efficiency and reduce costs by integrating planning, 
order entry, procurement, production, distribution and financial systems 
across the global enterprise. By year-end 1998, Powernet was operational at 
all major domestic locations.

                                     - 2 -
<PAGE>


  Our Powernet systems conversion appears to be the most comprehensive such 
change attempted by any chemical company. When fully operational, it should 
enable us to provide a level of service to customers impossible to achieve 
before Powernet and unsurpassed in our industry.

The Next Peak
Looking past the cyclical trough, our improved cost base, along with highly 
competitive new facilities, should enable earnings to reach new highs in the 
next cyclical peak. The new facilities, including our share of joint ventures, 
will increase our capacity about 50 percent compared with the 1995 peak.
  Our ethylene and polyethylene projects in Alberta are moving ahead on 
target. Our 1.3 billion-pound-capacity UNIPOL polyethylene plant at Prentiss, 
Alberta, is scheduled for completion in 2000. With its large size, leading-
edge process technology and access to low-cost ethylene from the 2.8 billion-
pound-capacity facility we are building nearby with NOVA Chemicals Ltd., the 
Prentiss plant should be a highly competitive supplier in its North American 
target markets. 
  Construction of our joint venture petrochemical complex in Malaysia is 
scheduled for completion in late 2001. We expect the venture, with Petroliam 
Nasional Berhad, the national oil company of Malaysia, to be Southeast Asia's 
most competitively advantaged producer of a broad range of chemicals, with the 
potential for excellent returns when growth resumes in the region. 
  Prospects for the venture, recently named the OPTIMAL Group, are further 
enhanced as other companies have canceled or postponed their own Southeast 
Asian chemical projects that would not have had OPTIMAL's feedstock or other 
advantages. Given OPTIMAL's strengths and the favorable competitive 
environment we expect, we remain confident that our Asian joint venture is the 
right one in the right place at the right time.
  We are also enthusiastic about the progress of Univation Technologies, LLC, 
our polyolefins technology joint venture with Exxon Chemical Company. The 
venture has announced that, since its inception in 1997, five companies 
worldwide have selected the UNIPOL Process for polyethylene and two for 
polypropylene. And some of the polyethylene projects include the venture's 
proprietary metallocene catalysis and capacity expansion technologies.
  Advanced catalysts such as metallocenes offer polyethylene producers 
extraordinary control of the molecular architecture of their products and the 
ability to meet the needs of almost any plastics market with the right cost 
and combination of toughness and other properties. The ability to tailor 
polymers for a range of new uses opens new markets and new opportunities for 
growth.
  We were pleased in November to have the Court of Appeal of England affirm 
the proprietary nature of Union Carbide's "condensing mode" technology, which 
is employed in our UNIPOL polyethylene process to significantly boost reactor 
performance. The favorable ruling affirms that UNIPOL remains the industry's 
leading polyethylene technology.
  So despite the hard times in 1998, in many areas we made progress that 
should ensure a more productive and profitable future. Yet all of us in the 
chemical business and, we believe, most stockholders, understand that progress 
means little in our business unless accompanied by progress in safety and 
environmental performance. 
  Carbide registered some gains in 1998 and substantially improved over 
performance of the early 90s. But we would have liked to have done better. 
  For the seventh year in a row, there were no major process incidents at any 
of our facilities. While the number of accidental releases matched our lowest 
on record, the volume of material in those incidents was unacceptably high. 
Tragically, we also suffered a fatality, our first at a U.S. facility in more 
than six years, when an employee at our plant in Taft, La., died from nitrogen 
asphyxiation. 
  We are giving high priority under our RESPONSIBLE CARE commitment to 
improving our personnel safety performance and reducing the volume and number 
of accidental releases.
  We take our health, safety and environmental responsibilities seriously and 
I am pleased to report that Carbide received an Environmental Partnership 
award in 1998 from the U.S. Environmental Protection Agency for our work with 
Federal and state environmental protection agencies to clean up a Superfund 
site in Marietta, Ohio.
  Finally, I would like to note two changes in the composition of our board of 
directors.
  Joseph E. Geoghan, who was also vice president, general counsel and 
secretary, retired at year-end 1998 after a distinguished 41-year career with 
Union Carbide. Joe is a supremely capable corporate lawyer whose devoted 
service to Carbide and wise counsel to management will be sorely missed. 
  I am pleased to welcome Paul J. Wilhelm, president of the U.S. Steel Group 
of USX Corporation and a USX director, who was elected to the Carbide board, 
effective Dec. 1, 1998.


  William H. Joyce
  February 25, 1999

                                     - 3 -
<PAGE>


Principal Products & Services

Specialties & Intermediates

  Union Carbide's Specialty Polymers and Products group manufactures and 
markets numerous specialty products. Many of its technologies are targeted for 
sharply defined market segments.

Specialty Polymers and Products
- - Specialty Industrial Products produces acrolein and derivatives, important 
in a range of products from biocides to animal feed supplements; ethylidene 
norbornene (ENB), used in the production of ethylene propylene rubber for 
roofing and automotive parts; and specialty ketones, used as solvents and 
intermediates in herbicide, drug and vitamin manufacture.
- - Performance Polymers produces POLYOX water-soluble resins, used in personal 
care products, drug formulations, inks, textiles and plastics. The business 
also produces polyvinyl acetate resins, used in such widely diverse 
applications as chewing gum, molded automotive body parts, bathroom fixtures, 
business-machine housings, coatings and adhesives.
- - Coating Materials produces, among other products, UCAR solution vinyl 
resins, used in coatings for beverage and food cans, bottle caps and closures; 
in maintenance coatings used on bridges, storage tanks and oceangoing vessels; 
in printing inks for vinyl shower curtains, wallpaper and furniture; and in 
magnetic recording tape. Products also include CELLOSIZE hydroxyethyl 
cellulose thickeners, used in interior and exterior paints and personal care 
products; TONE caprolactone-based materials, used in fabric coatings, 
orthopedic cast and splint materials, automotive primers and topcoats and 
biodegradable bags for compostable materials; cycloaliphatic epoxides for 
electric utility equipment such as insulators and transformers; CYRACURE 
products for ultraviolet-cured coatings and inks; and FLEXOL plasticizers, 
made from soybean and linseed oils, used to keep plastic products 
soft and pliable.
- - Amerchol Corporation, a Union Carbide subsidiary, manufactures and sells a 
wide variety of cellulose-, glucose- and lanolin-based materials for shampoos, 
skin lotions and other personal care products.

UCAR Emulsion Systems makes products used in interior and exterior house 
paints, adhesives and sealants. They include UCAR POLYPHOBE rheology 
modifiers, used to thicken coatings, and UCAR latex products, used as binders 
and to improve exterior durability, scrub and stain resistance and adhesion.

Specialty Polyolefins manufactures a variety of performance polyolefin 
products marketed worldwide. Chief among these are polyolefin-based compounds 
for high-performance insulation, semiconductives and jacketing systems for 
power distribution, telecommunications and flame-retardant wire and cable. 
Other Specialty Polyolefins products are used in adhesives, laminating film 
and flexible tubing.

UNIPOL Systems develops and licenses UNIPOL Process technology - the 
industry's most versatile method of manufacturing polyethylene and 
polypropylene - for producers worldwide. The business also develops new 
process technology for the manufacture of other olefins-based polymers, such 
as ethylene propylene rubber, which it produces and markets to rubber products 
manufacturers, and sells catalysts to UNIPOL Process licensees worldwide. 
Licensing of the UNIPOL PE and PP Processes, as well as the development of new 
polyethylene technologies, such as metallocene catalysts and Super Condensed 
Mode Technology, is handled through Univation Technologies, LLC, a joint 
venture of Union Carbide and Exxon Chemical Company.

Industrial Performance Chemicals manufactures and sells a broad range of 
ethylene oxide derivatives and formulated glycol products for specialty 
applications. These include CARBOWAX polyethylene glycols, nontoxic, 
biodegradable, water-soluble products with a wide range of applications in the 
pharmaceutical, personal care, household, textile-processing, wood 
preservation, ceramic and industrial markets; ethanolamines, for detergents, 
personal care products such as bath soap, agricultural products and natural 
gas conditioning and refining; ethyleneamines, for fuel, lubricant and motor-
oil additives, adhesives, corrosion inhibitors, cleaning materials and many 
industrial uses; TRITON and TERGITOL specialty and commodity surfactants, for 
use in institutional, industrial and household cleaning products; formulations 
for personal care products, and in industrial processes for textiles, paper, 
paints and coatings and many other products; UCON fluids and lubricants, for 
use in brake fluids and fire-resistant hydraulic fluids, used in heavy-duty 
machinery and off-highway equipment and in automotive air conditioning systems 
with non-ozone-depleting coolants; alkyl alkanolamines for water-treating 
chemicals, surfactants, fabric softeners, pharmaceuticals, and natural-gas and 
boiler-water conditioning; and gas-treating 

                                     - 4 -
<PAGE>


chemicals, including SELEXOL and UCARSOL solvents, used to lower corrosion 
rates and increase efficiency in removing carbon dioxide and sulfur 
derivatives from natural and refinery gases. Formulated glycol products 
include UCAR aircraft and runway deicing and anti-icing fluids, which remove 
or prevent formation of ice, snow and frost on aircraft and runway surfaces; 
UCARTHERM heat-transfer fluids, which help to distribute heat and cooling 
effects and inhibit corrosion in heating, ventilation and refrigeration 
systems; and NORKOOL industrial products, used as coolants, corrosion 
inhibitors and cleaners in gas compressor stations, generators and large 
engines. 

Solvents, Intermediates and Monomers supplies one of the chemical industry's 
broadest product lines to the paints and coatings markets and also serves the 
cosmetics and personal care, adhesives, household and institutional products, 
pharmaceuticals and agricultural markets. Products include oxo aldehydes, 
acids and alcohols, used as chemical intermediates and industrial solvents and 
in herbicides, plasticizers, paint dryers, jet-turbine lubricants, lube oil 
additives, perfumes and food and feed preservatives; esters, which serve as 
solvents in industrial coatings and printing inks and in the manufacturing 
processes for pharmaceuticals and polymers; CARBITOL and CELLOSOLVE solvents, 
used in high-technology coatings applications such as primers and industrial 
finishes for the automotive, packaging and furniture markets, as jet-fuel 
additives and grease cutters for household and industrial cleaners and in UCON 
and EMKADIXOL brake fluids; ketones, including methyl isobutyl ketone, used as 
solvents for vinyl resins, industrial lacquers and pharmaceuticals and as 
intermediates for dyes and rubbers chemicals; monomers, such as vinyl acetate, 
and acrylic esters, widely used in the production of latex paints, paper 
coatings, adhesives, textile binders and floor and shoe polishes; alcohols, 
such as ethanol and isopropanol, used as solvents and intermediates in 
materials used to produce coatings, inks, herbicides, petroleum additives and 
synthetic lubricants, and also widely used as solvents for personal care 
products such as perfumes, deodorants and hair sprays, and in the preparation 
of mouthwashes, detergents, disinfectants and polishes; and the UNICARB 
System, a pollution-reducing technology that can cut costs and reduce volatile 
organic compounds (VOCs) in spray-applied coatings by up to 80 percent.

Basic Chemicals & Polymers

Union Carbide's Hydrocarbons group manufactures about two thirds of the 
company's ethylene requirements and almost one third of its propylene 
requirements. Ethylene and propylene are the key raw materials for many of 
Union Carbide's businesses.

Union Carbide is the world's leading producer of ethylene oxide and ethylene 
glycol, supplied by the Ethylene Oxide/Glycol group. Ethylene oxide is a 
chemical intermediate primarily used in the manufacture of ethylene glycol, 
polyethylene glycol, glycol ethers, ethanolamines, surfactants and other 
performance chemicals and polymers; di- and triethylene glycol, used in 
natural gas-drying and other moisture-removing applications and as softeners 
for paper, cork, glue and bookbinding; and tetraethylene glycol, for removing 
impurities from raw materials used in making plastics, synthetic rubber and 
dyes. Ethylene glycol is used extensively in the production of polyester 
fiber, resin and film, automotive antifreeze and engine coolants, and aircraft 
anti-icing and deicing fluids. 

Union Carbide is a leading manufacturer of polyethylene, the world's most 
widely used plastic. UNIPOL Polymers produces and markets linear low-, medium- 
and high-density polyethylenes, used in high-volume applications such as 
housewares, milk and water bottles, grocery sacks, trash bags, packaging, 
water and gas pipe, and FLEXOMER very low-density resins, used as an impact 
modifier in other polymers and to produce flexible hose and tubing, frozen-
food bags and stretch wrap. 

Carbide's Polypropylene Resins business manufactures and sells polypropylene, 
one of the world's largest-volume, fastest-growing plastics. End-use 
applications include carpeting and upholstery, apparel, packaging films, food 
containers such as dairy products cups, housewares and appliances, heavy-duty 
tapes and ropes, and automobile interior trim and panels.

For a summary of business and geographic segment data, see Note 6 to the 
consolidated financial statements and Management's Discussion & Analysis, 
beginning on page 7.

For a summary of the corporation's joint ventures, see Note 9 to the 
consolidated financial statements and Management's Discussion & Analysis on 
pages 10 through 13. 

                                     - 5 -
<PAGE>


Chemical Glossary

Alcohols - Chemicals, such as butanol, ethanol and isopropanol, that serve as 
solvents and intermediates for the manufacture of personal care products, 
pharmaceuticals, paints and coatings, herbicides, petroleum additives and 
synthetic lubricants.

Biocides - Chemicals used to control or inhibit the growth of bacteria, algae, 
fungi and mold.

Chemical Intermediates - Chemicals formed or introduced as an intermediate 
step between the starting material and the final product in chemical 
processing. Examples are:
- - Acrolein, used to make biocides, animal feed supplements and coatings 
resins.
- - Esters, made by reacting alcohols and acids, used primarily as solvents in 
paints and coatings, ink and pharmaceuticals.
- - Ethanolamines, reaction products of ethylene oxide and ammonia, used in 
detergents and other cleaning materials, in personal care products, 
agricultural products and for removal of sulfur and other impurities from 
natural gases.
- - Ethyleneamines, made from ethylene oxide or ethylene dichloride, used in 
many industrial products, including fuel, lubricant and motor oil additives, 
adhesives, wet-strength paper resins and paints.

Ethylene Glycol - Chemical made from ethylene oxide and water, used to make 
polyester resins, film and fiber, automotive antifreeze and engine coolants, 
and aircraft deicing/ anti-icing fluids.

Ethylene Oxide - Chemical made from ethylene and oxygen. It combines with 
other chemicals to produce a wide range of products, such as ethylene glycol, 
water-soluble polymers for personal care products and surfactants for 
detergents and cleaning products.

Glycol Ethers - Solvents used in higher-technology coating applications, such 
as finishes for the automotive market, and in noncoating applications, such as 
hard-surface cleaners, military jet fuels and brake fluids.

Ketones - Chemicals, such as acetone, used as solvents for resins, lacquers 
and pharmaceuticals, and as intermediates for resins, dyes and rubber 
chemicals.

Monomer - Chemical that can be converted into a polymer. For example, ethylene 
is a monomer that is made into polyethylene.

Olefins - Generic name for unsaturated hydrocarbons made from components of 
petroleum or natural gas. Examples are:
- - Ethylene and Propylene, chemicals derived from natural gases or petroleum 
components, and the starting materials from which most of Union Carbide's 
chemicals and polymers are made.

Oxo Alcohols, Aldehydes and Acids - Chemicals Carbide manufactures via its LP 
OXO Process, such as butanol and propionic acid, which are used as chemical 
intermediates and industrial solvents.

Polymers - Chains or networks of linked monomers. Plastics are polymers. 
Examples are:
- - Polyethylene, the world's most widely used plastic, made by the reaction of 
ethylene and, optionally, other olefins. It is used in hundreds of consumer 
and industrial products, including grocery and trash bags, waste containers, 
housewares, bottles, drums, food packaging and wire and cable insulation and 
jacketing. Union Carbide produces most of its polyethylene via UNIPOL Process 
technology, developed by the corporation in the early 1970s, which is licensed 
to polyethylene makers around the world.
- - Polypropylene, a fast-growing, high-volume plastic made from the reaction of 
propylene and, optionally, other olefins. The broad range of applications 
includes lawn furniture, carpet fiber and backing, food containers, toys, 
appliance housings and binding materials. Much of Union Carbide's production 
is via the UNIPOL PP Process, also licensed around the world.

Solvents - Chemicals used to dissolve or absorb other chemicals. For example, 
ketones, esters, alcohols and glycol ethers are effective solvents commonly 
used in paints and coatings.

Surfactants - Chemicals that increase the cleaning and wetting properties of 
household and industrial cleaners and detergents. They are used also in 
textile and paper processing, paints, agricultural products, cosmetics, 
shampoos and other personal care products. Carbide makes most of its 
surfactants from ethylene oxide and alcohols.

                                     - 6 -
<PAGE>


Management's Discussion & Analysis

Results of Operations

<TABLE>
<CAPTION>
Millions of dollars (except per share figures),
  for the year ended December 31,                       1998    1997    1996
<S>                                                   <C>     <C>     <C>
Net sales                                             $5,659  $6,502  $6,106
Operating profit(a)                                      803   1,045     921
Interest expense                                         114      79      76
Income before provision for income taxes                 689     966     845
Income before cumulative effect of change 
  in accounting principle                                403     676     593
Net income                                               403     659     593
Net income - common stockholders                         403     652     583
Per share - basic 
  Income before cumulative effect of change 
    in accounting principle                           $ 2.98  $ 5.02  $ 4.43
  Net income - common stockholders                      2.98    4.89    4.43
Per share - diluted
  Income before cumulative effect of change 
    in accounting principle                             2.91    4.53    3.90
  Net income - common stockholders                      2.91    4.41    3.90
<FN>
(a) See Note 6 to the financial statements for a discussion of the special 
    items included in operating profit.
</FN>
</TABLE>

  Union Carbide operates in two business segments. Specialties & Intermediates 
(S&I) converts basic and intermediate chemicals into a diverse portfolio of 
chemicals and polymers serving industrial customers in many markets. This 
segment also provides technology services, including licensing, to the oil and 
petrochemicals industries. Basic Chemicals & Polymers (BC&P) converts 
hydrocarbon feedstocks, principally liquefied petroleum gas and naphtha, into 
ethylene or propylene used to manufacture polyethylene, polypropylene, 
ethylene oxide and ethylene glycol for sale to third-party customers, as well 
as ethylene, propylene, ethylene oxide and ethylene glycol for consumption by 
the S&I segment. In comparison to those of S&I, the revenues and operating 
profit of BC&P tend to be more cyclical and very sensitive to a number of 
external variables, including overall economic demand, hydrocarbon feedstock 
costs, industry capacity increases and plant operating rates. 
  In addition to its business segments, the corporation's Other segment 
includes its noncore operations and financial transactions other than 
derivatives designated as hedges, which are included in the same segment as 
the item being hedged.

Summary
1998 Compared with 1997
  The corporation's 1998 earnings reflected a difficult environment for the 
chemical industry coupled with the continuing decline of the Asian economy. On 
a consolidated basis, net sales declined 13.0 percent as the result of a 10.1 
percent decline in average selling prices and a 3.1 percent decline in 
customer volume. Average customer selling prices dropped 22.3 percent in the 
BC&P segment, reflecting a deteriorating supply/demand balance in 
polyethylene, polypropylene and ethylene oxide/glycol. Average selling prices 
in S&I dropped 5.2 percent, due in part to weakness in Asian markets. Volumes 
declined in both segments as a result of extended plant shutdowns associated 
with planned multiyear olefins unit turnarounds and expansion, distribution 
disruptions in the U.S. Gulf Coast region early in 1998 and declining Asian 
demand. Fixed cost per pound of products sold (fixed manufacturing and 
distribution costs, plus research and development and selling, administration 
and other expenses, divided by customer volume) increased from a decade low of 
10.8 cents in the prior year to 11.5 cents in the current year, primarily the 
result of lower volumes and higher fixed costs related to the extended plant 
shutdowns and the implementation of the corporation's information technology 
infrastructure system in 1998. 
  Partnership income declined $100 million due to the recognition of $53 
million of before-tax ($38 million after-tax) losses in the third quarter 
associated with Aspell Polymeres SNC, the corporation's joint venture in 
France; a decline in UOP LLC's (UOP) earnings, related to reduced oil and 
petrochemical projects within some of the oil markets in Asia, Russia and the 
Middle East; and reduced Petromont and Company, Limited Partnership, 
(Petromont) earnings due to declining polyethylene prices. Operating profit 
benefited from a $189 million before-tax ($115 after-tax) net gain from two 
favorable litigation settlements related to the UNIPOL Systems business. Net 
income was reduced by a $69 million decline in earnings of the corporation's 
corporate investments carried at equity caused by declining basic chemical 
prices in Asia and Europe, as well as startup difficulties experienced by 
EQUATE Petrochemical Company (EQUATE).

                                     - 7 -
<PAGE>


1997 Compared with 1996
  On a consolidated basis, average selling prices increased 1.2 percent and 
customer volume increased 5.1 percent, while fixed cost per pound sold 
declined to 10.8 cents, the lowest of the decade. Average selling prices 
benefited from increased ethylene glycol prices in the first nine months of 
1997 and improved polyethylene pricing in the first half of 1997, partly 
offset by the impact of a stronger U.S. dollar against foreign currencies and 
increased competition in pricing, primarily in the solvents, intermediates and 
monomers (SIM) product lines. Volume increases resulted from stronger demand 
in both segments, partially offset by rail distribution problems in the U.S. 
Gulf Coast region, particularly toward the last half of 1997. BC&P's customer 
unit variable margin (sales less variable manufacturing and distribution costs 
divided by customer volume) benefited from a reduction in raw material costs 
from prior year levels. This was somewhat offset by higher raw material costs 
for S&I products, most significantly ethylene oxide, transferred from the BC&P 
segment at approximate market value, and higher energy costs. Partnership 
income remained strong, excluding certain costs, principally research and 
development, assumed by the corporation's technology venture, Univation 
Technologies, LLC (Univation). Additionally, the improved earnings from our 
equity companies represented increases in earnings of Polimeri Europa S.r.l. 
(Polimeri Europa) partially offset by increased preoperating expenses 
associated with EQUATE.
  In 1996 the corporation's earnings were adversely impacted by declines in 
selling prices, particularly for ethylene glycol, polyethylene and vinyl 
acetate monomer, and by high raw material and energy costs. These factors had 
a significant impact on BC&P's operating profit and limited S&I operating 
profit growth. Sales volumes experienced their largest increase in the past 
decade, while productivity, as measured by fixed cost per pound of products 
sold, also improved. Partnerships reported strong profits, while equity 
company results declined due to the preoperating costs of EQUATE and increased 
raw material costs for Polimeri Europa. 

Interest Expense
  Interest expense increased from $79 million in 1997 to $114 million in 1998, 
due to an increase in debt levels from 1997 to 1998 coupled with a reduction 
in capitalized interest associated with the corporation's capital program.
  Interest expense increased $3 million, from $76 million in 1996 to $79 
million in 1997. This increase reflected the effect of a full year's interest 
expense associated with the 7.75 percent debentures due in 2096 and an 
increase in short-term debt, partially offset by an increase in capitalized 
interest associated with the corporation's capital program. 

Provision for Income Taxes
  The effective tax rate was 31.5 percent in 1998 compared with 28.9 percent 
and 27.9 percent in 1997 and 1996, respectively. The corporation's effective 
tax rate increased in 1998 as a result of higher tax rates associated with the 
corporation's two favorable litigation settlements related to the UNIPOL 
Systems business. Excluding these settlements, the effective tax rate would 
have been 28.6 percent. The corporation's effective tax rate is less than the 
statutory Federal income tax rate principally because of research and 
experimentation and foreign sales corporation tax credits. 

Corporate Matters
Interest Rate and Currency Risk Management
  The corporation selectively uses financial instruments to manage its 
exposure to market risk related to changes in foreign currency exchange rates 
and interest rates. The corporation does not hold derivative financial 
instruments for trading purposes. See Notes 1 and 10 to the consolidated 
financial statements for more information about these instruments.
  At Dec. 31, 1998, the corporation held open foreign currency forward 
contracts and purchased options with net notional amounts of $419 million and 
an unrecognized net loss of $1 million ($185 million and an unrecognized net 
loss of $2 million, respectively, at Dec. 31, 1997). 

                                     - 8 -
<PAGE>


  The corporation used sensitivity analysis to evaluate the potential effect 
of movements in foreign currency exchange rates and interest rates on the 
consolidated financial statements. Based on this analysis, a hypothetical 10 
percent weakening in the U.S. dollar across all currencies would have resulted 
in a $7 million net loss at Dec. 31, 1998 (no income statement effect at Dec. 
31, 1997). Alternatively, a hypothetical 10 percent strengthening in the U.S. 
dollar across all currencies would have resulted in a $10 million net loss at 
Dec. 31, 1998 ($3 million net gain at Dec. 31, 1997). These gains and losses 
would generally be offset by fluctuations in underlying currency transactions.
  The corporation held long-term debt of $1,814 million, of which $125 million 
was variable-rate debt, at Dec. 31, 1998 ($1,463 million and $15 million, 
respectively, at Dec. 31, 1997). At Dec. 31, 1998 and 1997, a hypothetical 10 
percent increase or decrease in market interest rates would not have 
materially affected interest expense or cash flows related to variable-rate 
debt. A 10 percent increase in market interest rates would have decreased the 
net fair market value of fixed-rate debt instruments by $96 million at Dec. 
31, 1998 ($94 million at Dec. 31, 1997), and a 10 percent decrease in market 
interest rates would have increased the net fair market value of fixed-rate 
debt instruments by $108 million at Dec. 31, 1998 and 1997.

Foreign Operations
  A portion of the financial results of each of the corporation's segments is 
derived from activities conducted outside the U.S. and denominated in 
currencies other than the U.S. dollar. Because the financial results of the 
corporation are reported in U.S. dollars, they are affected by changes in the 
value of the various foreign currencies in relation to the U.S. dollar. 
Exchange rate risks are lessened, however, by the diversity of the 
corporation's foreign operations and the fact that international activities 
are not concentrated in any single non-U.S. currency. In addition, the effects 
of a strengthening U.S. dollar could cause pricing pressures on worldwide 
chemical markets that could result in declines in the corporation's sales 
volumes.
  The corporation is subject to other risks customarily associated with doing 
business in foreign countries, including local labor and economic conditions, 
unfavorable changes in foreign tax laws and possible controls on repatriation 
of earnings and capital. Future losses associated with such risks, if any, 
cannot be predicted.

European Monetary Union
  On Jan. 1, 1999, eleven European Union member countries established fixed 
conversion rates among their existing currencies (legacy currencies) and one 
common currency, the euro. The euro is now trading on currency exchanges and 
can be used in business transactions. Beginning in January 2002, euro-
denominated bills and coins will be issued, and legacy currencies will be 
withdrawn from circulation. The corporation's European and other international 
financial systems and processes were euro-ready on Jan. 1, 1999, and the 
corporation anticipates that its domestic financial systems and processes will 
be euro-ready by the end of 1999. The corporation is still in the process of 
evaluating the potential effects of the euro conversion, and does not expect 
the euro to have a material effect on its industry segment businesses, 
consolidated results of operations or financial condition.

Outlook-Corporate
  In 1997, the corporation adopted an incentive plan designed to grant awards 
to a limited number of senior managers if the corporation were to achieve 
$4.00 or more diluted earnings per share performance during 1999 and 2000. 
While no actual level of earnings can be predicted, it is not likely that the 
goal of $4.00 per diluted share is attainable in 1999. There is also 
increasing uncertainty as to whether the goal is attainable in 2000.
  The corporation regularly reviews its assets with the objective of 
maximizing the deployment of resources in core operations. In this regard, UCC 
continues to consider strategies and/or transactions with respect to certain 
noncore assets and other assets not essential to the operation of the business 
that, if implemented, could result in material nonrecurring gains or losses.

(Included on pages 8 and 9 are four bar charts which provide the following 
data:

(1) Fixed Cost per Pound - cents/pound
              Specialties &    Basic Chemicals &    Consolidated
              Intermediates        Polymers             Total
    1991          20.6                9.2               15.5
    1992          19.0                7.7               13.8
    1993          17.5                7.5               12.9
    1994          15.0                7.0               11.4
    1995          15.8                7.2               11.9
    1996          14.7                6.7               11.0
    1997          14.2                6.8               10.8
    1998          14.7                7.5               11.5

(2) Employee Productivity
               Number of    Thousands of Pounds
               Employees       Per Employee
    1991         16,705             665
    1992         15,075             794
    1993         13,051             916
    1994         12,004           1,064
    1995         11,521           1,128
    1996         11,745           1,230
    1997         11,813           1,286
    1998         11,627           1,266

(3) Volume - millions of pounds
              Specialties &    Basic Chemicals &    Consolidated
              Intermediates        Polymers             Total
    1991          6,144              4,958             11,102
    1992          6,458              5,510             11,968
    1993          6,454              5,502             11,956
    1994          7,093              5,680             12,773
    1995          7,112              5,878             12,990
    1996          7,743              6,706             14,449
    1997          8,264              6,923             15,187
    1998          8,101              6,614             14,715

(4) Unit Variable Margin - cents/pounds
                               Specialties & 
                               Intermediates
                               Including the
                               OrganoSilcon
              Specialties &    business sold    Basic Chemicals & 
              Intermediates       in 1993           Polymers
    1991         24.5               27.1              11.8
    1992         25.0               27.8               7.7
    1993         25.7               27.2               6.6
    1994         24.6                  -               8.5
    1995         26.8                  -              16.4
    1996         24.7                  -              11.0
    1997         22.9                  -              13.9
    1998         24.3                  -               9.6          )


                                     - 9 -
<PAGE>


Specialties & Intermediates

<TABLE>
<CAPTION>
Millions of dollars, except as indicated                1998    1997    1996
<S>                                                   <C>     <C>     <C>
Segment revenues                                      $4,139  $4,453  $4,286
Cost of sales, exclusive of depreciation 
  and amortization                                     3,007   3,358   3,131
Gross margin                                           1,132   1,095   1,155
Depreciation and amortization                            247     214     188
Partnership income                                        27     116     134
Operating profit                                      $  833  $  667  $  742
Income from corporate investments carried at equity   $    1  $    6  $    9
Customer volume (millions of pounds)                   8,101   8,264   7,743
Unit variable margin (cents/pound)                      24.3    22.9    24.7
Fixed cost per pound of products sold (cents/pound)     14.7    14.2    14.7
Capital expenditures                                  $  438  $  458  $  522
Investments, advances and acquisitions                    42      50      38
Segment assets                                         4,493   4,146   3,892
</TABLE>

1998 Compared with 1997
  During 1998, S&I segment revenues declined 7.1 percent on a 5.2 percent 
decline in average selling prices and a 2.0 percent decline in volume. Average 
selling prices declined for almost all of S&I's products as a result of 
worldwide competitive pricing pressure, particularly on sales in weakening 
Asian markets. Volume decreased most significantly in the SIM product lines, 
due largely to reduced Asian demand. This decline was somewhat offset by 
increased domestic shipments of industrial performance chemicals and UCAR 
emulsion systems products.
  The S&I unit variable margin increased principally due to declines in raw 
material costs. However, fixed cost per pound of products sold increased over 
1997 reflecting the combined effect of reduced volumes and increased fixed 
costs associated with the extended plant shutdowns and costs associated with 
the corporation's information technology project. Increased depreciation and 
amortization are principally the result of depreciation associated with 
capital projects completed during 1998.
  Included in Operating profit for 1998 were two favorable litigation 
settlements related to the UNIPOL Systems business representing a total of 
$189 million before-tax ($115 after-tax), which occurred in the second half of 
the year.

1997 Compared with 1996
  The increase in sales of 3.9 percent was the result of a 6.7 percent 
increase in volume partially offset by lower average selling prices. Average 
selling price reductions were due in part to a strengthening of the U.S. 
dollar against currencies such as the German Deutschemark and the Japanese 
yen, as well as by increased competition in SIM product lines. Additionally, 
shipments for this segment's products were negatively affected by rail 
problems in the U.S. Gulf Coast region in the second half of 1997. Unit 
variable margin declines resulted from an increase in the cost of raw 
materials and energy. A decline in research and development expenditures was 
mainly attributable to costs assumed by the corporation's technology venture, 
Univation. Increased depreciation and amortization expense reflected the 
associated depreciation of projects completed in 1997. Included in 1997's 
Operating profit is a charge of $12 million for the write-off of certain 
equipment associated with the corporation's ethylene propylene rubber (EPR) 
project.

Specialties & Intermediates Joint Ventures
  The most significant joint ventures included in the S&I segment are:

UOP LLC (UOP) - a domestic joint venture, accounted for as a partnership, with 
AlliedSignal Inc. for the worldwide supply of process technology, catalysts, 
molecular sieves and adsorbents to the petrochemical and gas-processing 
industries. In addition to its domestic operations, UOP has facilities in 
Germany, Italy and the United Kingdom.

                                    - 10 -
<PAGE>


Joint Ventures - Specialties & Intermediates      
<TABLE>
<CAPTION>
                                                                                    UCC's
                                                       Combined            Proportionate Share(a)
Millions of dollars                              1998    1997    1996      1998      1997    1996
<S>                                            <C>     <C>     <C>       <C>       <C>     <C>
Net sales                                      $2,060  $2,246  $2,238    $1,032    $1,109  $1,082
Cost of sales                                   1,345   1,395   1,456       663       567     680
Depreciation                                      119      90      86        54        51      39
Income from operations                            231     340     322       122       175     187
Interest expense                                   43      42      31        16        15      12
Provision for income taxes                         48      76      63        24        38      32
Net Income                                     $  141  $  224  $  227    $   81(b) $  122  $  143
UCC share of dividends & distributions                                   $  105    $  107  $  101
Total assets                                   $1,981  $1,837  $1,769    $  881    $  820  $  757
Total third-party debt                            616     588     577       268       249     212
Net Assets                                     $  474  $  451  $  561    $  298    $  277  $  263
<FN>
(a) Includes U.S. Generally Accepted Accounting Principles adjustments made 
    by the corporation, such as goodwill and related amortization, and 
    adjustments needed to conform the accounting policies of the joint 
    ventures to those of UCC.
(b) Excluding the $53 million loss associated with Aspell in the third 
    quarter.
</FN>
</TABLE>

Nippon Unicar Company Limited (NUC) - a Japanese corporate joint venture with 
Tonen Chemical Corporation to produce polyethylene and specialty polyethylene 
compounds and specialty silicone products.

Aspell Polymeres SNC (Aspell) - a French partnership with Elf Atochem S.A., a 
subsidiary of Elf Aquitaine, to produce polyethylene and specialty 
polyethylene compounds.

World Ethanol Company (World Ethanol)- a domestic partnership with Archer 
Daniels Midland Company, to supply ethanol worldwide.

Univation Technologies, LLC (Univation) - a domestic joint venture, accounted 
for as a partnership, with Exxon Chemical Company, a division of Exxon 
Corporation, for the licensing of polyethylene technology and research, 
development and commercialization of process technology and single site and 
other advanced catalysts for the production of polyethylene. The venture is 
also the sales agent for licensing of Union Carbide's UNIPOL technology.

Asian Acetyls Co., Ltd. (ASACCO) - a South Korean corporate joint venture with 
BP Chemicals and Samsung Fine Chemicals Company to produce vinyl acetate 
monomers used in the production of emulsion resins by customers in the 
coatings and adhesives industries.

1998 Compared with 1997
  The corporation's share of S&I partnership income decreased $89 million from 
1997. The decrease is primarily related to the recognition of $53 million of 
losses associated with Aspell in the third quarter of 1998. Additionally, 1998 
included declining earnings from UOP, primarily related to unfavorable market 
conditions in Asia, Russia and the Middle East, and a full twelve months of 
operating costs, principally related to research and development, associated 
with Univation, compared with only eight months in 1997. Income from the 
corporation's S&I corporate investments carried at equity decreased $5 million 
principally due to reduced earnings at NUC. 

1997 Compared with 1996
  The corporation's share of S&I partnership income decreased $18 million in 
1997 from the prior year. The decline resulted from the assumption of certain 
costs, principally research and development, by Univation, and decreased 
earnings of World Ethanol, mainly attributable to lower prices and volumes 
caused by a different mix of ethanol sales in 1997. Income from corporate 
investments carried at equity decreased $3 million principally the result of 
reduced earnings at NUC.

Outlook - Specialties & Intermediates
  Looking ahead to the first quarter of 1999, the corporation anticipates that 
this segment will continue to be negatively affected by weak pricing, 
particularly in Asia. This effect may be mitigated by seasonal improvement in 
volumes, continued low raw material cost and improved licensing results. 
Results from the corporation's S&I joint ventures will continue to be affected 
by declines in UOP's earnings due to continuing difficulties in Asia, Russia 
and the Middle East. 

                                    - 11 -
<PAGE>


Basic Chemicals & Polymers
<TABLE>
<CAPTION>
Millions of dollars, except as indicated                 1998    1997    1996
<S>                                                    <C>     <C>     <C>
Segment revenues                                       $1,802  $2,420  $2,125
Cost of sales, exclusive of depreciation 
  and amortization                                      1,550   1,816   1,739
Gross margin                                              252     604     386
Depreciation and amortization                             142     126     124
Partnership income                                          6      17      10
Operating profit                                       $   20  $  386  $  162
(Loss) from corporate investments carried at equity    $  (67) $   (3) $  (25)
Customer volume (millions of pounds)                    6,614   6,923   6,706
Unit variable margin (cents/pound)                        9.6    13.9    11.0
Fixed cost per pound of products sold (cents/pound)       7.5     6.8     6.7
Capital expenditures                                   $  344  $  297  $  199
Investments, advances and acquisitions                     69      18     225
Segment assets                                          2,596   2,540   2,328
</TABLE>

1998 Compared with 1997
  During 1998, the BC&P segment was negatively affected by overall 
deterioration of the supply/demand balance for basic chemicals. Average 
customer selling prices declined 22.3 percent. Prices for ethylene glycol, 
polyethylene and polypropylene declined throughout 1998 to levels below those 
of the prior cyclical trough in 1993. Customer volume declined 4.5 percent, in 
part due to distribution disruptions in the first half of the year and 
extended ethylene plant shutdowns for multiyear maintenance, at the 
corporation's Taft, La., and Texas City, Tex., facilities, and an expansion, 
at Taft, La., all in the second half of the year.
  Unit variable margin declined as average selling prices fell at a faster 
rate than the cost of raw materials. The increase in this segment's fixed cost 
per pound of products sold reflects the combined effect of reduced customer 
volumes and higher costs associated with the extended plant shutdowns and the 
implementation of the corporation's information technology infrastructure 
system. The increase in depreciation and amortization is the result of 
depreciation associated with capital projects completed during 1998.

1997 Compared with 1996
  Increases in sales resulted from a 9.2 percent increase in average customer 
selling prices coupled with a 3.2 percent increase in customer volume. The 
increase in average customer selling prices reflected the strong increase in 
ethylene glycol pricing during the first three quarters of 1997 and improved 
polyethylene pricing throughout the first half of the year. In addition, this 
segment's cost of sales and unit variable margin benefited from reduced 
average feedstock costs in 1997 versus 1996.

Basic Chemicals & Polymers Joint Ventures
  The most significant joint ventures included in the BC&P segment are:

Alberta & Orient Glycol Company Limited (A&OG) - a Canadian corporate joint 
venture with Mitsui & Co., Ltd., Japan, and Far Eastern Textile Ltd., Taiwan, 
to produce ethylene glycol.

EQUATE Petrochemical Company K.S.C. (EQUATE) - a corporate joint venture in 
Kuwait with Petrochemical Industries Company and Boubyan Petrochemical Company 
to manufacture ethylene, polyethylene and ethylene glycol.

Petromont and Company, Limited Partnership (Petromont) - a Canadian 
partnership with Ethylec Inc. to produce olefins and polyethylene resins.

Polimeri Europa S.r.l. (Polimeri Europa) - an Italian corporate joint venture 
with EniChem S.p.A. to produce olefins and polyethylene resins. This joint 
venture also has facilities in France and Germany.

1998 Compared with 1997
  BC&P's partnership income declined $11 million from 1997 due to the decline 
in earnings of Petromont resulting from declining worldwide average chemical 
selling prices. Lower earnings for this segment's corporate investments 
carried at equity in 1998 are mainly attributable to declining worldwide 
average basic chemical selling prices particularly in Asia and Europe. 
Additionally, EQUATE experienced startup difficulties during its first full 
year of operations, including an interruption in the supply of electric power 
from a government-owned power station. 
  Depreciation within the joint ventures more than doubled in 1998 due to the 
startup of the EQUATE facility.

                                    - 12 -
<PAGE>


Joint Ventures - Basic Chemicals & Polymers
<TABLE>
<CAPTION>
                                                                           UCC's Proportionate
                                                         Combined                Share(a)
Millions of dollars                                1998    1997    1996    1998    1997    1996
<S>                                              <C>     <C>     <C>     <C>     <C>     <C>
Net sales                                        $1,996  $2,078  $1,930  $  984  $1,038  $  965
Cost of sales                                     1,597   1,661   1,575     790     855     798
Depreciation                                        253     102     126     113      46      51
Income from operations                               50     219      96      36      68      30
Interest expense                                    206      70      67      86      35      34
Provision for income taxes                           27      49      20      12      18      11
Net Income (loss)                                $ (182) $  100  $    9  $  (61) $   14  $  (15)
UCC share of dividends & distributions                                   $   18  $   19  $   40
Total assets                                     $3,724  $3,980  $3,536  $1,725  $1,797  $1,650
Total third-party debt                            1,474   1,595   1,197     691     744     561
Net Assets                                       $  639  $  985  $  972  $  326  $  413  $  432
<FN>
(a) Includes U.S. Generally Accepted Accounting Principles adjustments made by 
    the corporation, such as goodwill and related amortization, and 
    adjustments needed to conform the accounting policies of the joint 
    ventures to those of UCC.
</FN>
</TABLE>

1997 Compared with 1996
  The corporation's share of the net income of BC&P partnerships increased $7 
million from 1996 to 1997, due to significant improvement in Petromont 
earnings. The corporation's share of loss from corporate investments carried 
at equity declined $22 million from a loss of $25 million in 1996 to a loss of 
$3 million in 1997, as the result of improved earnings of Polimeri Europa 
partially offset by increased preoperating expenses of EQUATE. Strong results 
of our polyolefins partnerships in 1997 were the result of increases in 
worldwide polymer pricing over the prior year. 

Joint Venture Commitments
  EQUATE commenced operations in the fourth quarter of 1997. Preoperating 
losses of $43 million for development of this world-scale petrochemical 
complex were recognized by the corporation in 1997 ($23 million in 1996). The 
corporation has severally guaranteed 45 percent (approximately $562 million at 
Dec. 31, 1998) of EQUATE's debt and working capital financing needs until 
certain completion and financial tests are achieved. If these tests are met, a 
$54 million several guarantee will provide ongoing support thereafter. The 
corporation has also severally guaranteed certain sales volume targets until 
EQUATE's sales capabilities are proved. In addition, the corporation has 
pledged its shares in EQUATE as security for EQUATE's debt. The corporation 
has political risk insurance coverage for its equity investment and, through 
March 31, 1999, substantially all of its guarantee of EQUATE's debt. The 
corporation is in the process of extending the political risk insurance for 
its debt guarantee through March 31, 2001.

Outlook - Basic Chemicals & Polymers
  The corporation anticipates that adverse market conditions will continue 
throughout 1999. While the corporation announced price increases in ethylene, 
polyethylene, polypropylene and ethylene glycol in the first quarter of 1999, 
it is too early to determine if the increases will be accepted. Variable 
margins should remain relatively flat, with any price increases offset by raw 
material cost increases. The corporation anticipates that operating profit 
will benefit from the absence of costs associated with the Taft, La., and 
Texas City, Tex., olefins plant turnarounds and the Taft expansion, completed 
in 1998. The corporation's outlook for its BC&P joint ventures is anticipated 
to reflect the same market conditions as those of the corporation's BC&P 
segment. While EQUATE is anticipated to operate at its nameplate capacity, 
resultant gains are likely to be offset by decreases at Polimeri Europa due to 
lower European polyethylene pricing. 

Other

<TABLE>
<CAPTION>
Millions of dollars
for the year ended December 31,  1998   1997   1996
<S>                              <C>    <C>    <C>
Operating profit (loss)          $(50)  $ (8)  $ 17
</TABLE>

  The Other segment includes the operating profit (loss) of noncore activities 
and certain financial transactions. Included in 1998 were the net effects of 
gains and losses from the resolution of certain legal obligations related to 
discontinued businesses, the writedown of a long-term available-for-sale 
security and a reclassification, to a discontinued business, of an 
environmental accrual.

Costs Relating to Protection of the Environment
  Worldwide costs relating to environmental protection continue to be 
significant, due primarily to stringent laws and regulations and to the 
corporation's commitment to industry 

                                    - 13 -
<PAGE>


initiatives such as RESPONSIBLE CARE, as well as to its own internal 
standards. In 1998, worldwide expenses related to environmental protection for 
compliance with Federal, state and local laws regulating solid and hazardous 
wastes and discharge of materials to air and water, as well as for waste site 
remedial activities, totaled $91 million. Expenses in 1997 and 1996 were $100 
million and $110 million, respectively. In recent years, such environmental 
expenses have decreased as the corporation has made progress toward completing 
major remediation projects. In addition, worldwide capital expenditures 
relating to environmental protection, including those for new capacity and 
cost reduction and replacement, in 1998 totaled $57 million, compared with $68 
million and $43 million in 1997 and 1996, respectively.
  The corporation, like other companies in the U.S., periodically receives 
notices from the U.S. Environmental Protection Agency and from state 
environmental agencies, as well as claims from other companies, alleging that 
the corporation is a potentially responsible party (PRP) under the 
Comprehensive Environmental Response, Compensation and Liability Act and 
equivalent state laws (hereafter referred to collectively as Superfund) for 
past and future cleanup costs at hazardous waste sites at which the 
corporation is alleged to have disposed of, or arranged for treatment or 
disposal of, hazardous substances. The corporation is also undertaking 
environmental investigation and remediation projects at hazardous waste sites 
located on property currently and formerly owned by the corporation pursuant 
to Superfund, as well as to the Resource Conservation and Recovery Act and 
equivalent state laws.
  There are approximately 118 hazardous waste sites at which management 
believes it is probable or reasonably possible that the corporation will incur 
liability for investigation and/or remediation costs. The corporation has 
established accruals for those hazardous waste sites where it is probable that 
a loss has been incurred and the amount of the loss can reasonably be 
estimated. The reliability and precision of the loss estimates are affected by 
numerous factors, such as the stage of site evaluation, the allocation of 
responsibility among PRPs and the assertion of additional claims. The 
corporation adjusts its accruals as new remediation requirements are defined, 
as information becomes available permitting reasonable estimates to be made, 
and to reflect new and changing facts.
  At Dec. 31, 1998, the corporation's accruals for environmental remediation 
totaled $220 million ($264 million in 1997). Approximately 53 percent of the 
accrual (55 percent in 1997) pertains to estimated future expenditures for 
site investigation and cleanup, and approximately 47 percent (45 percent in 
1997) pertains to estimated expenditures for closure and postclosure 
activities. See Note 17 to the financial statements for a discussion of the 
environmental sites for which the corporation has remediation responsibility. 
In addition, the corporation had environmental loss contingencies of $121 
million at Dec. 31, 1998. 
  Estimates of future costs of environmental protection are necessarily 
imprecise, due to numerous uncertainties. These include the impact of new laws 
and regulations, the availability and application of new and diverse 
technologies, the identification of new hazardous waste sites at which the 
corporation may be a PRP and, in the case of Superfund sites, the ultimate 
allocation of costs among PRPs and the final determination of the remedial 
requirements. While estimating such future costs is inherently imprecise, 
taking into consideration the corporation's experience to date regarding 
environmental matters of a similar nature and facts currently known, the 
corporation estimates that worldwide expenses related to environmental 
protection, expressed in 1998 dollars, should average about $110 million 
annually over the next five years. Worldwide capital expenditures for 
environmental protection, also expressed in 1998 dollars, are expected to 
average about $50 million annually over the same period. Management 
anticipates that future annual costs for environmental protection after 2003 
will continue at levels comparable to the five-year average estimates.
  Subject to the inherent imprecision and uncertainties in estimating and 
predicting future costs of environmental protection, it is management's 
opinion that any future annual costs for environmental protection in excess of 
the five-year average estimates stated here, plus those costs anticipated to 
continue thereafter, would not have a material adverse effect on the 
corporation's consolidated financial position. 

Litigation
  The corporation and its consolidated subsidiaries are involved in a number 
of legal proceedings and claims with both private and governmental parties. 
These cover a wide range of matters, including, but not limited to: product 
liability; governmental regulatory proceedings; health, safety and 
environmental matters; employment; patents; contracts; and taxes. In some of 
these legal proceedings and claims, the cost of remedies that may be sought or 
damages claimed is substantial. While it is impossible at this time to 
determine with certainty the ultimate outcome of any such legal proceedings 
and claims, management believes that adequate provisions have been made for 
probable losses with respect thereto and that such ultimate outcome, after 
provisions therefor, will not have a material adverse effect on the 
consolidated financial position of the corporation but could have a material 
effect on consolidated results of operations in a given quarter or year. 
Should any losses be sustained in connection with any of such legal 
proceedings and claims in excess of provisions therefor, they will be charged 
to income when determinable.

                                    - 14 -
<PAGE>


Accounting Changes
1996 through 1998
  Effective Jan. 1, 1998, the corporation adopted Statement of Financial 
Accounting Standards (Statement) No. 130, "Reporting Comprehensive Income," 
Statement No. 131, "Disclosures about Segments of an Enterprise and Related 
Information," and Statement No. 132, "Employers' Disclosures about Pensions 
and Other Postretirement Benefits." These Statements address presentation and 
disclosure matters and therefore had no impact on the corporation's financial 
position or results of operations. As required by these Statements, the 
respective reporting disclosures have been reflected in the corporation's 1998 
consolidated financial statements. Prior periods have been restated to comply 
with the provisions of these Statements.
  In 1997, the corporation adopted Emerging Issues Task Force consensus on 
Issue 97-13, "Accounting for Costs Incurred in Connection with a Consulting 
Contract or an Internal Project That Combines Business Process Reengineering 
and Information Technology Transformation," requiring companies to expense as 
incurred costs associated with business process reengineering activities. 
Effective Oct. 1, 1997, the corporation adopted the provisions of Issue 97-13 
as a cumulative effect of a change in accounting principle, reversing $28 
million ($17 million, after-tax) of costs previously capitalized from 1995 
through the third quarter of 1997. 
  Additionally in 1997, the corporation adopted Statement No. 128, "Earnings 
Per Share," and Statement No. 129, "Disclosure of Information about Capital 
Structure." 

Subsequent to 1998
  The corporation prospectively adopted Statement of Position (SOP) 98-1, 
"Accounting for the Costs of Computer Software Developed or Obtained for 
Internal Use," effective Jan. 1, 1999. The effect of this adoption is not 
expected to be material to the results of operations in the period of 
adoption.
  Also effective Jan. 1, 1999, the corporation adopted SOP 98-5, "Reporting on 
the Costs of Start-Up Activities." This SOP requires the expensing of certain 
costs, such as preoperating expenses and organizational costs associated with 
the corporation's startup activities. The effect of adoption is required to be 
accounted for as a cumulative effect of change in accounting principle. The 
amount to be recognized as a cumulative effect of change in accounting 
principle in the first quarter of 1999 is anticipated to be approximately $20 
million after-tax.
  In 1998, the Financial Accounting Standards Board issued Statement No. 133, 
"Accounting for Derivative Instruments and Hedging Activities." It requires 
that an entity recognize all derivative instruments as either assets or 
liabilities in the statement of financial position and measure those 
instruments at fair value. This Statement is effective for all fiscal quarters 
of fiscal years beginning after June 15, 1999. The corporation is currently 
evaluating the effect this Statement will have on its financial position and 
results of operations in the period of adoption and may consider early 
adoption.

Year 2000 Readiness Disclosure
Overview
  The corporation has a comprehensive program to address its systems that may 
be affected by the Year 2000 problem, including hardware and software, and to 
assess the readiness of its customers and suppliers. An inventory of potential 
problems and a prioritization of remedial work is complete. Remediation 
efforts and further discussions with entities outside the corporation whose 
Year 2000 activities could impact Union Carbide are under way. 

Internal Activities
  Since 1995, the corporation has been working to ready its internal 
operations and has expended significant funds to replace most of its U.S. 
office information systems with an integrated, advanced system supported by 
Systems Applications and Products (SAP) software. This SAP project, 
implemented during 1998, made most of the corporation's commercial hardware 
and software Year 2000 ready.
  At the completion of 1999, all of the corporation's business information 
systems are expected to be Year 2000 ready. 
  Other systems and equipment scheduled for implementation, remediation, 
completion or replacement by the end of the third quarter of 1999 include:

- -  Commercial computer systems in Human Resources; Health, Safety and 
Environment; Engineering; Research and Development; and other functional 
areas. 

- -  Process control systems, logic controllers, process and laboratory 
analyzers, embedded devices, and other business systems including office and 
medical equipment, building/site systems and applications providing 
environmental compliance reporting. Remediation in major manufacturing units 
will be coordinated with planned major maintenance shutdowns. Remediation has 
already been accomplished at the corporation's Texas City and Taft 
hydrocarbons units. In a few cases, remediation will be handled in the fourth 
quarter to coordinate with previously scheduled plant shutdowns.

- -  International computer infrastructure. Remediation of international 
commercial applications began in 1997 and was essentially completed during the 
fourth quarter of 1998. Small applications remediation and international 
infrastructure will be completed during 1999.

- -  Domestic infrastructure upgrades to desktop computers and servers.

- -  Selected subsidiary and Canadian operations.

                                    - 15 -
<PAGE>


External Groups
  The corporation is reviewing its external relationships to address potential 
Year 2000 impacts arising from interfaces with customers, suppliers and 
service providers with whom the corporation has a significant relationship, as 
well as the corporation's joint ventures. 
  The corporation continues to communicate with its most significant suppliers 
and customers to assess their ability to meet their sales and purchasing 
obligations, as well as with its joint ventures to assess their readiness for 
the Year 2000.
  Interviews with the 200 most critical suppliers have been completed. In 
North America, approximately 1,900 inquiries have been answered in writing by 
our customers and for 62 major customers more extensive information has been 
received through telephone interviews, personal visits or additional 
written information. Another 200 inquiries have been similarly addressed 
outside North America. The corporation's Year 2000 efforts relative to 
customers and suppliers will continue into the Year 2000.

Expenditures
  Costs for project work are expected to range between $40 and $45 million, 
with potential contingencies raising the overall funding to between $50 and 
$60 million. Additionally, internal personnel costs are expected to range 
between $30 and $40 million. All costs are expected to be funded through 
operations of the corporation. As of Dec. 31, 1998, approximately $12 million 
and $6 million had been incurred for costs of project work and internal 
personnel, respectively. Approximately 70 percent of the planned external 
costs are expected to relate to repairing or upgrading current systems and 30 
percent to existing hardware and software replacement. These estimates do not 
include costs associated with the replacement of most of the corporation's 
U.S. computer systems with SAP, the environmental reporting project, 
international information technology infrastructure, or Year 2000 issues which 
the corporation's joint ventures may incur, all of which are being implemented 
independently of the corporation's Year 2000 project. It is anticipated that 
the corporation's share of the cost to address Year 2000 issues of its joint 
ventures will range between $10 and $15 million.

Risks and Contingency Plan
  Failure to sufficiently remediate the Year 2000 problem in a timely fashion 
poses substantial risks for the corporation. Reasonable worst-case scenarios 
include, but are not limited to, manufacturing system malfunctions including 
shutdowns and failure in the supply chain. The full extent of these risk 
scenarios is uncertain at this time and will be better defined during 1999. 
Contingency planning is being initiated in the first quarter, and plans should 
be in place, as necessary, by the end of the third quarter. Contingency plans 
will include, but not be limited to, consideration of alternative sources of 
supply, customer communications and plant and business response plans.
  The corporation plans to complete its Year 2000 project prior to the new 
year. However, considerable work remains to be accomplished, and unforeseen 
difficulties may arise that could adversely affect the corporation's ability 
to complete systems modifications correctly, on time and/or within cost 
estimates. In addition, there can be no assurance that customers, suppliers 
and service providers on whom the corporation relies, as well as the 
corporation's joint ventures, will resolve their Year 2000 issues accurately, 
thoroughly and on time. Failure by the corporation or failure by the 
corporation's customers, suppliers, service providers or joint ventures to 
complete the Year 2000 project by the new year could have a material adverse 
affect on future operating results and financial condition of the corporation.

Liquidity, Capital Resources and Other Financial Data

Cash Flow From Operations
  Cash flow from operations increased by $21 million to $928 million in 1998, 
as compared to $907 million in 1997, principally the result of an increase in 
noncash charges and a reduction in working capital requirements partially 
offset by a decline in net income. The increase in noncash charges is mainly 
attributable to increases in joint venture losses, depreciation and 
amortization and deferred income taxes.

Cash Flow Used for Investing
  Cash flow used for investing includes capital expenditures, investments, 
advances and acquisitions, and purchases of, and proceeds from, the sale of 
securities and assets.
  Capital expenditures increased to $782 million in 1998, from $755 million in 
1997 and $721 million in 1996. Major capital projects funded during 1998 and 
1997 included work on an olefins expansion, a new butanol unit, a new CARBOWAX 
polyethylene glycol and TERGITOL surfactants facility and an ethanolamines 
unit, all at Taft, La.; a new olefins facility being built jointly with NOVA 
Chemicals Ltd., and a polyolefins project, both in Alberta, Canada; as well as 
the upgrade of information technology infrastructure. Major capital projects 
funded during 1996 included an ethylene propylene rubber facility at Seadrift, 
Tex.; an expansion of ethylene production units at Taft, La., as well as new 
cogeneration facilities at Texas City, Tex., and Taft, La.; and new 
information technology infrastructure. 
  Over the past three years, 61 percent of capital expenditures was directed 
to new capacity, 35 percent to cost reduction and replacement and 4 percent to 
environmental, safety and health facilities. Of these expenditures, 86 percent 
were in the U.S. and Puerto Rico.

                                    - 16 -
<PAGE>


  Investments and acquisitions in 1996 included the purchases of Shell's 
polypropylene assets and business and 95 percent of the outstanding shares of 
Companhia Alcoolquimica Nacional, a Brazilian producer of vinyl acetate 
monomer. 
  At Dec. 31, 1998, the cost of completing authorized construction projects 
was estimated to be $1.160 billion, of which $132 million is covered by firm 
commitments. Future construction expenditures are anticipated to be sourced 
through operating cash flows and borrowings.
  In April 1998, the corporation and Petroliam Nasional Berhad (PETRONAS), the 
national oil company of Malaysia, agreed to form three joint venture companies 
(the OPTIMAL Group) that will build and operate a 600,000 metric-tons-per-year 
ethylene plant, a 385,000 metric-tons-per-year ethylene oxide/glycol plant and 
a multiple specialties and intermediates derivatives plant in Kerteh, 
Terengganu, Malaysia. The joint ventures' primary marketing focus will be in 
Southeast Asia. The corporation anticipates funding its approximate $500 
million share of the cost of the complex through its 2001 planned startup date 
with internally generated funds and external debt.

Cash Flow Used for Financing
  Cash flow used for financing includes stockholder and minority interest 
dividends and funds used to buy back common stock, offset in part by net 
proceeds from short- and long-term debt and sales of common stock pursuant to 
the corporation's dividend reinvestment plan, its employee savings and 
investment programs and its long-term incentive plans.
  Cash flow used for financing in 1998 totaled $8 million, compared with $132 
million in 1997 and $254 million in 1996. Borrowings in 1998 included net 
proceeds of $248 million from the issuance of 6.25 percent notes due in June 
2003 and $110 million net proceeds of floating rate public notes, due in April 
2000. The floating rate public notes bear interest at a rate which will be 
reset quarterly at the three-month London interbank offered rate (LIBOR), plus 
0.65 percent. Dividends paid in 1998 totaled $122 million.
  Included in cash flow used for financing in 1997 were net proceeds of $250 
million from the issuance of preferred stock by the corporation's real estate 
investment trust (REIT) subsidiary. The corporation paid $240 million in cash 
to redeem the preferred stock shares in the fourth quarter of 1997. Cash 
dividends paid to preferred shareholders of the REIT during 1997 totaled $25 
million. 
  In September 1997, the board of directors declared an increase in the 
quarterly common stock dividend to $0.225 per share. In October 1997, the 
trustee of the Employee Stock Ownership Plan (ESOP) exercised its right to 
convert all shares of the corporation's preferred stock held by the ESOP into 
the corporation's common stock. This noncash conversion increased the 
corporation's common stock outstanding at that time by 15.4 million shares.
  In 1996, the corporation issued $200 million of 7.75 percent debentures 
maturing in 2096, the proceeds of which were used to finance ongoing share 
repurchases and to pay down existing short-term debt. 
  During 1998, pursuant to its 60 million share repurchase authorization, the 
corporation repurchased 6.1 million shares of its common stock for $273 
million, at an average effective price of $44.69 per share, bringing the total 
amount repurchased since the beginning of 1993 to 55.4 million shares for 
$1.986 billion, at an average effective price of $35.82 per share. The 
corporation intends to acquire additional shares from time to time at 
prevailing market prices, at a rate consistent with the combination of 
corporate cash flow and market conditions. In addition to the above 
repurchases in 1998, stock was reacquired from employees to satisfy tax 
withholding requirements on restricted shares issued under employee benefit 
plans.
  At Dec. 31, 1998, there were no outstanding borrowings under the existing 
major bank credit agreement aggregating $1 billion. The corporation has an 
effective shelf registration statement available covering $390 million of 
public debt securities at Dec. 31, 1998.

Debt Ratios

<TABLE>
<CAPTION>
Total debt outstanding at year-end for each of the past three years was:
Millions of dollars       1998    1997    1996
<S>                     <C>     <C>     <C>
Domestic                $2,019  $1,719  $1,492
International              203     168     107
Total                   $2,222  $1,887  $1,599
</TABLE>

Year-end ratios of total debt to total capital were:
                          1998    1997    1996
Debt ratio                47.2%   44.2%   42.7%
Total debt consists of short-term debt, long-term debt and the current portion 
of long-term debt. Total capital consists of total debt plus minority 
stockholders' equity in consolidated subsidiaries and stockholders' equity. 

(Included on page 17 is one bar chart which provides the following data:

Shares Repurchased - millions
            Net of 
         Reissuances    Total
1993          1.4        3.8
1994          6.1       11.6
1995          9.3       14.1
1996          8.7       12.8
1997          4.9(a)     7.0
1998          4.3        6.1
(a) Does not include 15.4 million shares issued in connection 
    with the ESOP preferred share conversion.
                                                                      )

                                    - 17 -
<PAGE>


Selected Financial Data
<TABLE>
<CAPTION>
Union Carbide Corporation and Subsidiaries
Dollar amounts in millions  
  (except per share figures)                     1998       1997       1996    1995       1994
<S>                                            <C>        <C>        <C>     <C>        <C>     
From the Income Statement
  Net sales                                    $5,659     $6,502     $6,106  $5,888     $4,865  
  Cost of sales, exclusive of
    depreciation and amortization               4,294      4,806      4,568   4,100      3,673   
  Research and development                        143        157        159     144        136     
  Selling, administration and other expenses      304        324        321     387(f)     290     
  Depreciation and amortization                   389        340        312     306        274     
  Partnership income (loss)                        33(a)     133        144     152         98      
  Other income (expense) - net                    241(b)      37         31     245        (39)    
  Income before interest expense and 
    provision for income taxes                    803      1,045        921   1,348        551     
  Interest expense                                114         79         76      89         80      
  Income (loss) before provision for 
    income taxes - continuing operations          689        966        845   1,259        471     
  Provision (credit) for income taxes             217        279        236     380        137      
  Income (loss) from corporate investments
    carried at equity                             (66)         3        (16)     47         55      
  Income (loss) from continuing operations        403        676        593     925        389     
  Cumulative effect of change in 
    accounting principle                            -        (17)         -       -          -     
  Net income (loss) - common stockholders         403        652        583     915        379      
  Per common share:
  Basic - Income (loss) from 
            continuing operations              $ 2.98     $ 5.02     $ 4.43  $ 6.65     $ 2.51   
        - Net income (loss)                      2.98       4.89       4.43    6.65       2.51    
  Diluted - Income (loss) from 
              continuing operations              2.91       4.53       3.90    5.85       2.27    
          - Net income (loss)                    2.91       4.41       3.90    5.85       2.27    
From the Balance Sheet
  Net current assets of continuing operations  $  436     $  362     $  595  $  858     $  329    
  Total assets                                  7,291      6,964      6,546   6,256      5,028   
  Long-term debt                                1,796      1,458      1,487   1,285        899     
  Other long-term obligations                     602        738        811     834        537     
  Total capital(c)                              4,707      4,268      3,742   3,392      2,479   
  Stockholders' equity                          2,449      2,348      2,114   2,045      1,509   
  Stockholders' equity per common share         18.46      17.15      16.72   15.14      10.45    
Other Data
  Cash dividends on common stock               $  122     $  100     $   99  $  103     $  113    
  Cash dividends per common share                0.90     0.7875       0.75    0.75       0.75    
  Special distribution per common share             -          -          -       -          -       
  Market price per common share - high(d)       55.75      56.81      49.88   42.75      35.88   
  Market price per common share - low(d)        36.75      40.50      36.38   25.50      21.50   
  Common shares outstanding (thousands)       132,686    136,944    126,440 135,108    144,412 
  Capital expenditures                            782        755        721     542        409     
  Employees - continuing operations            11,627     11,813     11,745  11,521     12,004  
Selected Financial Ratios
  Total debt/total capital                       47.2%      44.2%      42.7%   39.0%      38.2%   
  Return on capital(c)                           11.2%      19.6%      18.6%   39.2%      18.0%    
  Return on equity(e)                            17.2%      30.8%      28.5%   60.6%      26.5%    
  Income from continuing operations/average
    stockholders' equity                         16.8%      30.3%      28.5%   52.1%      26.5%   
  Cash dividends on common stock/income 
    from continuing operations                   30.3%      14.8%      16.7%   11.1%      29.0%   

<CAPTION>
Union Carbide Corporation and Subsidiaries
Dollar amounts in millions  
  (except per share figures)                     1993    1992       1991    1990    1989    1988
<S>                                            <C>     <C>        <C>     <C>     <C>     <C>
From the Income Statement
  Net sales                                    $4,640  $4,872     $4,877  $5,238  $5,613  $5,525
  Cost of sales, exclusive of
    depreciation and amortization               3,589   3,764      3,787   3,876   3,909   3,696
  Research and development                        139     155        157     157     143     124
  Selling, administration and other expenses      340     383        408     466     442     394
  Depreciation and amortization                   276     293        287     278     261     255
  Partnership income (loss)                        67      60        (22)     70      82      95
  Other income (expense) - net                    (66)    (13)      (135)    103     108      (1)
  Income before interest expense and 
    provision for income taxes                    297     324         81     634   1,048   1,150
  Interest expense                                 70     146        228     269     268     172
  Income (loss) before provision for 
    income taxes - continuing operations          227     178       (147)    365     780     978
  Provision (credit) for income taxes              78      45        (50)    130     257     381
  Income (loss) from corporate investments
    carried at equity                              16     (14)       (21)    (42)     27      33
  Income (loss) from continuing operations        165     119       (116)    188     530     608
  Cumulative effect of change in 
    accounting principle                          (97)   (361)         -       -       -       -
  Net income (loss) - common stockholders          58    (187)       (28)    308     573     662
  Per common share:
  Basic - Income (loss) from 
            continuing operations              $ 1.03  $ 0.79     $(1.07) $ 1.34  $ 3.79  $ 4.52
        - Net income (loss)                      0.37   (1.48)     (0.22)   2.19    4.10    4.92
  Diluted - Income (loss) from 
              continuing operations              0.97    0.76      (1.07)   1.32    3.63    4.30
          - Net income (loss)                    0.41   (1.24)     (0.22)   2.16    3.92    4.67
From the Balance Sheet
  Net current assets of continuing operations  $  233  $   66     $  209  $    7  $   22  $   14
  Total assets                                  4,689   4,941      6,826   7,389   7,355   7,327
  Long-term debt                                  931   1,113      1,160   2,058   2,060   2,271
  Other long-term obligations                     378     277        428     357     572     594
  Total capital(c)                              2,395   2,710      4,694   5,338   5,319   4,805
  Stockholders' equity                          1,428   1,238      2,239   2,373   2,383   1,836
  Stockholders' equity per common share          9.49    9.32      17.55   18.88   16.83   13.34
Other Data
  Cash dividends on common stock               $  110  $  114     $  126  $  138  $  140  $  155
  Cash dividends per common share                0.75   0.875       1.00    1.00    1.00    1.15
  Special distribution per common share             -  15.875          -       -       -       -
  Market price per common share - high(d)       23.13   17.13(g)   22.63   24.88   33.25   28.38
  Market price per common share - low(d)        16.00   10.88(g)   15.13   14.13   22.75   17.00
  Common shares outstanding (thousands)       150,548 132,865    127,607 125,674 141,578 137,602
  Capital expenditures                            395     359        400     381     483     380
  Employees - continuing operations            13,051  15,075     16,705  17,722  18,032  17,258
Selected Financial Ratios
  Total debt/total capital                       40.3%   54.3%      52.0%   54.0%   49.9%   56.1%
  Return on capital(c)                            7.7%    6.9%         -     8.4%   21.2%   24.5%
  Return on equity(e)                             4.7%   (8.4)%     (1.2)%  12.9%   31.2%   53.1%
  Income from continuing operations/average
    stockholders' equity                         12.4%    6.8%         -     7.9%   25.1%   39.4%
  Cash dividends on common stock/income 
    from continuing operations                   66.7%   95.8%         -    73.4%   26.4%   25.5%
<FN>
(a) Includes $53 million in losses associated with Aspell Polymeres SNC, the 
    corporation's joint venture in France. 
(b) Other income (expense) - net in 1998 includes $189 million in favorable 
    litigation settlements related to the UNIPOL Systems business.
(c) Return on capital is computed by dividing income by beginning-of-year 
    capital. Income consists of income from continuing operations, less 
    preferred dividends, plus after-tax interest cost (net of interest income 
    received from Praxair), plus income attributable to minority interests. 
    Capital consists of total debt plus minority stockholders' equity in 
    consolidated subsidiaries and stockholders' equity, adjusted for the 
    corporation's Praxair-related assets and the cumulative effect of changes 
    in accounting principles. Total debt consists of short-term debt, long-
    term debt and the current portion of long-term debt.
(d) Prices are based on New York Stock Exchange Composite Transactions. 
(e) Return on equity is computed by dividing Net income (loss) - common 
    stockholders by beginning-of-year stockholders' equity.
(f) Selling, administration and other expenses in 1995 include a charge of 
    $68 million for postemployment benefits. 
(g) In 1992 the corporation spun off Praxair, Inc. The high and low presented 
    in the table for 1992 represent the value of the common stock after the 
    spin-off. The high and low for 1992 before the spin-off were $29.63 and 
    $20.13, respectively. 
</FN>
</TABLE>
                                 - 18 and 19 -
<PAGE>


Financial Statements

Consolidated Balance Sheet
<TABLE>
<CAPTION>
Union Carbide Corporation and Subsidiaries
Millions of dollars, at December 31,                             1998    1997
<S>                                                            <C>     <C>
Assets
    Cash and cash equivalents                                  $   49  $   20
    Notes and accounts receivable                                 933     993
    Inventories                                                   667     604
    Other current assets                                          257     249
Total Current Assets                                            1,906   1,866
    Property, plant and equipment                               8,409   7,707
    Less: Accumulated depreciation                              4,228   3,927
Net Fixed Assets                                                4,181   3,780
    Companies carried at equity                                   624     690
    Other investments and advances                                141     113
Total Investments and Advances                                    765     803
    Other assets                                                  439     515
Total Assets                                                   $7,291  $6,964

Liabilities and Stockholders' Equity
    Accounts payable                                           $  264  $  273
    Short-term debt and current portion of long-term debt         426     429
    Accrued income and other taxes                                110      75
    Other accrued liabilities                                     670     727
Total Current Liabilities                                       1,470   1,504
    Long-term debt                                              1,796   1,458
    Postretirement benefit obligation                             450     464
    Other long-term obligations                                   602     738
    Deferred credits                                              488     419
    Minority stockholders' equity in 
      consolidated subsidiaries                                    36      33
    Stockholders' equity
      Common stock
         Authorized - 500,000,000 shares
         Issued - 155,052,017 shares 
             (154,609,669 shares in 1997)                         155     155
      Additional paid-in capital                                   79      47
      Other equity adjustments                                     (2)     (3)
      Accumulated other comprehensive loss                       (104)   (101)
      Retained earnings                                         3,357   3,074
      Unearned employee compensation - ESOP                       (67)    (80)
      Treasury stock, at cost - 22,366,017 shares
             (17,666,164 shares in 1997)                         (969)   (744)
Total Stockholders' Equity                                      2,449   2,348
Total Liabilities and Stockholders' Equity                     $7,291  $6,964
<FN>
The Notes to Financial Statements on pages 25 through 43 should be read in 
conjunction with this statement.
</FN>
</TABLE>
                                    - 20 -
<PAGE>


Consolidated Statement of Income

<TABLE>
<CAPTION>
Union Carbide Corporation and Subsidiaries
Millions of dollars (except per share figures), 
for the year ended December 31,                        1998    1997      1996
<S>                                                  <C>     <C>       <C>
Net Sales                                            $5,659  $6,502    $6,106
  Cost of sales, exclusive of depreciation 
    and amortization                                  4,294   4,806     4,568
  Research and development                              143     157       159
  Selling, administration and other expenses            304     324       321
  Depreciation and amortization                         389     340       312
  Partnership income                                     33     133       144
  Net gains from settlements of UNIPOL Systems 
    business litigation                                 189       -         -
  Other income - net                                     52      37        31
Income Before Interest Expense and Provision 
  for Income Taxes                                      803   1,045       921
  Interest expense                                      114      79        76
Income Before Provision for Income Taxes                689     966       845
  Provision for income taxes                            217     279       236
Income of Consolidated Companies and Partnerships       472     687       609
  Minority interest                                       3      14         -
  Income (loss) from corporate investments 
    carried at equity                                   (66)      3       (16)
Income Before Cumulative Effect of Change in 
    Accounting Principle                                403     676       593
  Cumulative effect of change in 
    accounting principle                                  -     (17)        -
Net Income                                              403     659       593
  Preferred stock dividends, net of income taxes          -       7        10
Net Income - Common Stockholders                     $  403  $  652    $  583
Earnings Per Common Share
  Basic -
    Income Before Cumulative Effect of Change in 
      Accounting Principle                           $ 2.98  $ 5.02    $ 4.43
    Cumulative effect of change in 
      accounting principle                                -   (0.13)        -
    Net Income - Common Stockholders                 $ 2.98  $ 4.89    $ 4.43
  Diluted -
    Income Before Cumulative Effect of Change in 
      Accounting Principle                           $ 2.91  $ 4.53    $ 3.90
    Cumulative effect of change in 
      accounting principle                                -   (0.12)        -
    Net Income - Common Stockholders                 $ 2.91  $ 4.41    $ 3.90
Cash Dividends Declared Per Common Share             $ 0.90  $ 0.7875  $ 0.75
<FN>
The Notes to Financial Statements on pages 25 through 43 should be read in 
conjunction with this statement.
</FN>
</TABLE>

                                    - 21 -
<PAGE>



Consolidated Statement of Stockholders' Equity

<TABLE>
<CAPTION>
Union Carbide Corporation and Subsidiaries
                                                                                Additional    Other      Compre-
                                                            Shares       Common  Paid-In     Equity      hensive
Millions of dollars (shares in thousands)                Common Treasury  Stock  Capital   Adjustments   Income
<S>                                                      <C>      <C>     <C>     <C>        <C>          <C>
Balance at December 31, 1995                             154,610  19,502  $ 155   $ 343      $  (5) 
Put options, net                                                                      8  
Issued:
  For the Dividend Reinvestment and Stock Purchase Plan             (212)             2   
  For employee savings and incentive plans                        (3,942)            17      
Common stock repurchase program                                   12,821             
Comprehensive income
  Net income                                                                                              $ 593
  Other comprehensive income (loss), net of income taxes
    Unrealized losses on securities, net of
      reclassification adjustments                                                                           (4)
    Foreign currency translation adjustments                                                                (11)
  Other comprehensive loss                                                                                  (15)
Comprehensive income                                                                                      $ 578
Preferred stock dividends, net of income taxes      
Cash dividends on common stock                 
Restricted stock - Long-Term Incentive Program                                                  (3)
Balance at December 31, 1996                             154,610  28,169  $ 155   $ 370      $  (8) 
Put options, net                                                                     26  
Issued:
  For the Dividend Reinvestment and Stock Purchase Plan             (189)             2 
  For employee savings and incentive plans                        (1,979)           (66)  
Common stock repurchase program                                    7,071 
Effect of conversion of preferred shares held by ESOP            (15,406)          (285) 
Comprehensive income
  Net income                                                                                              $ 659
  Other comprehensive income (loss), net of income taxes
    Unrealized gains on securities, net of 
      reclassification adjustments                                                                            5
    Foreign currency translation adjustments                                                                (81)
  Other comprehensive loss                                                                                  (76) 
Comprehensive income                                                                                      $ 583  
Preferred stock dividends, net of income taxes 
Cash dividends on common stock    
Shares allocated to ESOP participants      
Restricted stock - Long-Term Incentive Program                                                   5   
Balance at December 31, 1997                             154,610  17,666  $ 155   $  47      $  (3) 
Issued:
  For the Dividend Reinvestment and Stock Purchase Plan       58    (161)             4 
  For employee savings and incentive plans                   384  (1,213)            28 
Common stock repurchase program                                    6,074  
Comprehensive income
  Net income                                                                                              $ 403 
  Other comprehensive income (loss), net of income taxes
    Unrealized gains on securities, net of 
      reclassification adjustments                                                                            5
    Foreign currency translation adjustments                                                                 (8)
  Other comprehensive loss                                                                                   (3)  
Comprehensive income                                                                                      $ 400  
Cash dividends on common stock   
Tax on unallocated ESOP shares  
Shares allocated to ESOP participants   
Restricted stock - Long-Term Incentive Program                                                   1  
Balance at December 31, 1998                             155,052  22,366  $ 155   $  79      $  (2) 


<CAPTION>
Union Carbide Corporation and Subsidiaries
                                                        Accumulated                Unearned              Total
                                                           Other                   Employee              Stock-
                                                       Comprehensive  Retained  Compensation  Treasury  holders'
Millions of dollars (shares in thousands)                   Loss      Earnings      -ESOP       Stock    Equity
<S>                                                        <C>         <C>          <C>        <C>      <C>
Balance at December 31, 1995                               $  (10)     $ 2,145      $   -     $  (583)  $ 2,045
Put options, net                                                                                              8
Issued:
    For the Dividend Reinvestment and Stock Purchase Plan                                           7         9
    For employee savings and incentive plans                                                      119       136
Common stock repurchase program                                                                  (550)     (550)
Comprehensive income
    Net income                                                             593
    Other comprehensive income (loss), net of income taxes
      Unrealized losses on securities, net of
        reclassification adjustments 
      Foreign currency translation adjustments
    Other comprehensive loss                                  (15)
Comprehensive income                                                                                        578
Preferred stock dividends, net of income taxes                             (10)                             (10)
Cash dividends on common stock                                             (99)                             (99)
Restricted stock - Long-Term Incentive Program                                                               (3)
Balance at December 31, 1996                               $  (25)     $ 2,629      $   -     $(1,007)  $ 2,114
Put options, net                                                                                             26
Issued:
    For the Dividend Reinvestment and Stock Purchase Plan                                           7         9
    For employee savings and incentive plans                                                       66         -
Common stock repurchase program                                                                  (340)     (340)
Effect of conversion of preferred shares held by ESOP                     (107)       (81)        530        57
Comprehensive income
    Net income                                                             659
    Other comprehensive income (loss), net of income taxes 
      Unrealized gains on securities, net of 
        reclassification adjustments 
      Foreign currency translation adjustments 
    Other comprehensive loss                                  (76)
Comprehensive income                                                                                        583
Preferred stock dividends, net of income taxes                              (7)                              (7)
Cash dividends on common stock                                            (100)                            (100)
Shares allocated to ESOP participants                                                   1                     1
Restricted stock - Long-Term Incentive Program                                                                5
Balance at December 31, 1997                               $ (101)     $ 3,074      $ (80)    $  (744)  $ 2,348
Issued:
    For the Dividend Reinvestment and Stock Purchase Plan                                           6        10
    For employee savings and incentive plans                                                       42        70
Common stock repurchase program                                                                  (273)     (273)
Comprehensive income
    Net income                                                             403
    Other comprehensive income (loss), net of income taxes
      Unrealized gains on securities, net of 
        reclassification adjustments 
      Foreign currency translation adjustments  
    Other comprehensive loss                                   (3)
Comprehensive income                                                                                        400
Cash dividends on common stock                                            (122)                            (122)
Tax on unallocated ESOP shares                                               2                                2
Shares allocated to ESOP participants                                                  13                    13
Restricted stock - Long-Term Incentive Program                                                                1
Balance at December 31, 1998                                $(104)     $ 3,357      $ (67)    $  (969)  $ 2,449

<FN>
The Notes to Financial Statements on pages 25 through 43 should be read in 
conjunction with this statement.
</FN>
</TABLE>
                                        - 22 and 23 -
<PAGE>


Consolidated Statement of Cash Flows

<TABLE>
<CAPTION>
Union Carbide Corporation and Subsidiaries
Increase (decrease) in cash and cash equivalents
Millions of dollars, for the year ended December 31,       1998   1997   1996
<S>                                                       <C>    <C>    <C>
Operations
Income before cumulative effect of change 
    in accounting principle                               $ 403  $ 676  $ 593
  Noncash charges (credits) to net income
    Depreciation and amortization                           389    340    312
    Deferred income taxes                                   118     86     82
    Net gains on investing transactions                       -      -     (3)
    Equity in earnings/losses of joint ventures,
      net of dividends received                             156    (10)    13
    Other                                                     6     12      3
  Increase in working capital(a)                            (86)  (144)   (92)
  Long-term assets and liabilities                          (58)   (53)   (47)
Cash Flow From Operations                                   928    907    861
Investing
  Capital expenditures                                     (782)  (755)  (721)
  Investments, advances and acquisitions, 
    excluding cash acquired                                (111)   (68)  (263)
  Proceeds from available-for-sale securities                39     37     29 
  Purchase of available-for-sale securities                 (47)   (38)   (42)
  Sale of fixed and other assets                             11     13     22 
Cash Flow Used for Investing                               (890)  (811)  (975)
Financing
  Change in short-term debt (3 months or less)              (23)   271     96
  Proceeds from short-term debt                              22     51     21
  Repayment of short-term debt                              (14)     -    (37)
  Proceeds from long-term debt                              358     14    203
  Repayment of long-term debt                                (4)   (30)   (10)
  Issuance of common stock                                   41     44    129
  Purchase of common stock                                 (276)  (337)  (544)
  Proceeds from subsidiary preferred stock                    -    250      -
  Purchase of subsidiary preferred stock                      -   (240)     - 
  Payment of dividends                                     (122)  (134)  (111)
  Other                                                      10    (21)    (1)
Cash Flow Used for Financing                                 (8)  (132)  (254)
  Effect of exchange rate changes on cash and 
    cash equivalents                                         (1)    (1)    (1)
  Change in cash and cash equivalents                        29    (37)  (369)
Cash and cash equivalents, beginning-of-year                 20     57    426
Cash and cash equivalents, end-of-year                    $  49  $  20  $  57
Cash paid for interest and income taxes:
    Interest (net of amount capitalized)                  $ 117  $  77  $  66
    Income taxes                                             43    121    169

<FN>
(a) Net change in certain components of working capital
    (excluding noncash transactions):
      (Increase) decrease in current assets
         Notes and accounts receivable                    $  77  $  53  $ (26)
         Inventories                                        (63)   (63)    43
         Other current assets                                (3)     -     25
      Increase (decrease) in payables and accruals          (97)  (134)  (134)
      (Increase) in working capital                       $ (86) $(144) $ (92)

The Notes to Financial Statements on pages 25 through 43 should be read in 
conjunction with this statement.
</FN>
</TABLE>
                                    - 24 -
<PAGE>


Notes to Financial Statements

Index                                               Page
  1   Summary of Significant Accounting Policies     25
  2   Supplementary Balance Sheet Detail             27
  3   Supplementary Income Statement Detail          28
  4   Other Comprehensive Income (Loss)              28
  5   Earnings Per Share                             29
  6   Business and Geographic Segment Information    30
  7   Income Taxes                                   32
  8   Leases                                         33
  9   Joint Ventures                                 34
 10   Financial Instruments                          35
 11   Long-Term Debt                                 36
 12   Minority Interest                              36
 13   Stockholders' Equity                           37
 14   Employee Stock Ownership Plan                  37
 15   Incentive Plans                                38
 16   Retirement Programs                            40
 17   Commitments and Contingencies                  42


1 Summary of Significant Accounting Policies

Nature of Operations - Union Carbide Corporation is engaged in two segments of 
the chemicals and plastics industry, Specialties & Intermediates and Basic 
Chemicals & Polymers. See Note 6.

Principles of Consolidation - The consolidated financial statements include 
the accounts of all significant subsidiaries. All significant intercompany 
transactions have been eliminated in consolidation. Investments in 20 percent- 
to 50 percent-owned partnerships and corporate investments (joint ventures) 
are reported under the equity method of accounting. Other investments are 
generally carried at cost.
  The consolidated financial statements have been prepared in conformity with 
generally accepted accounting principles, which require the corporation to 
make estimates and assumptions that affect the reported amounts of assets and 
liabilities and disclosure of contingent assets and liabilities at the date of 
the financial statements and the reported amounts of revenues and expenses 
during the reporting period. Actual results could differ from those estimates.

Accounting Changes - 
1996 through 1998
Effective Jan. 1, 1998, the corporation adopted Statement of Financial 
Accounting Standards (Statement) No. 130, "Reporting Comprehensive Income," 
Statement No. 131, "Disclosures about Segments of an Enterprise and Related 
Information," and Statement No. 132, "Employers' Disclosures about Pensions 
and Other Postretirement Benefits." These Statements address presentation and 
disclosure matters and therefore had no impact on the corporation's financial 
position or results of operations. As required by these Statements, the 
respective reporting disclosures have been reflected in the corporation's 1998 
consolidated financial statements. Prior periods have been restated to comply 
with the provisions of these Statements.
  In 1997, the corporation adopted Emerging Issues Task Force consensus on 
Issue 97-13, "Accounting for Costs Incurred in Connection with a Consulting 
Contract or an Internal Project That Combines Business Process Reengineering 
and Information Technology Transformation," requiring companies to expense as 
incurred costs associated with business process reengineering activities. 
Effective Oct. 1, 1997, the corporation adopted the provisions of Issue 97-13 
as a cumulative effect of a change in accounting principle, reversing $28 
million ($17 million, after-tax) of costs previously capitalized from 1995 
through the third quarter of 1997. 
  Additionally in 1997, the corporation adopted Statement No. 128, "Earnings 
Per Share," and Statement No. 129, "Disclosure of Information about Capital 
Structure."

Subsequent to 1998
The corporation prospectively adopted Statement of Position (SOP) 98-1, 
"Accounting for the Costs of Computer Software Developed or Obtained for 
Internal Use," effective Jan. 1, 1999. The effect of this adoption is not 
expected to be material to the results of operations in the period of 
adoption.
  Also effective Jan. 1, 1999, the corporation adopted SOP 98-5, "Reporting on 
the Costs of Start-Up Activities." This SOP requires the expensing of certain 
costs, such as preoperating expenses and organizational costs associated with 
the corporation's startup activities. The effect of adoption is required to be 
accounted for as a cumulative effect of change in accounting principle. The 
amount to be recognized as a cumulative effect of change in accounting 
principle in the first quarter of 1999 is anticipated to be approximately $20 
million after-tax.
  In 1998, the Financial Accounting Standards Board issued Statement No. 133, 
"Accounting for Derivative Instruments and Hedging Activities." It requires 
that an entity recognize all derivative instruments as either assets or 
liabilities in the statement of financial position and measure those 
instruments at fair value. This Statement is effective for all fiscal quarters 
of fiscal years beginning after June 15, 1999. The corporation is currently 
evaluating the effect this Statement will have on its financial position and 
results of operations in the period of adoption and may consider early 
adoption.

Foreign Currency Translation - Unrealized gains and losses resulting from 
translating foreign subsidiaries' assets and 

                                    - 25 -
<PAGE>


liabilities into U.S. dollars generally are recognized as part of Other 
comprehensive income (loss), as described in Note 4, and are included in 
Accumulated other comprehensive loss on the Consolidated Balance Sheet until 
such time as the subsidiary is sold or substantially or completely liquidated. 
Translation gains and losses relating to those operations located in Latin 
American countries where hyperinflation exists and to international operations 
using the U.S. dollar as their functional currency are included in the 
Consolidated Statement of Income. As required by Statement No. 52, Brazil was 
no longer considered a hyperinflationary economy, effective Jan. 1, 1998.

Financial Instruments - Financial instruments are used to hedge financial risk 
caused by fluctuating interest and currency rates. The amounts to be paid or 
received on interest rate risk instruments that hedge debt, accrue and are 
recognized over the lives of the instruments. Gains and losses on foreign 
currency risk instruments used to hedge firm commitments are deferred and 
recognized as part of the related foreign currency transactions. Gains on 
foreign currency purchased options used to hedge the identified cash flows of 
anticipated transactions are deferred and matched against the cash flows of 
the foreign currency transactions as they occur.
  Foreign currency instruments that are designated to offset fluctuations in 
the dollar value of foreign currency accounts receivable and payable and from 
earnings fluctuations in anticipated foreign currency cash flows are marked to 
market and the results recognized immediately in Other income-net.

Cash Equivalents - The corporation considers as cash equivalents all highly 
liquid investments that are readily convertible to known amounts of cash and 
are so near their maturity that they present insignificant risk of changes in 
value because of changes in interest rates. 

Inventories - Inventories are stated at cost or market, whichever is lower. 
These amounts do not include depreciation and amortization, the impact of 
which is not significant to the financial statements.
  Approximately 65 percent of inventory amounts before application of the LIFO 
method at Dec. 31, 1998 (67 percent at Dec. 31, 1997) have been valued on the 
LIFO basis; the "average cost" method is used for the balance. It is estimated 
that if inventories had been valued at current costs, they would have been 
approximately $224 million and $348 million higher than reported at Dec. 31, 
1998 and 1997, respectively. 

Fixed Assets - Fixed assets are carried at cost. Expenditures for replacements 
are capitalized, and the replaced items are retired. Gains and losses from the 
sale of property are included in income.
  Depreciation is calculated on a straight-line basis. The corporation and its 
subsidiaries generally use accelerated depreciation methods for tax purposes 
where appropriate.

Patents, Trademarks and Goodwill - Amounts paid for purchased patents, 
trademarks and newly acquired businesses in excess of the fair value of the 
net assets of such businesses have been charged to patents, trademarks and 
goodwill. The portion of such amounts determined to be attributable to patents 
is amortized over their remaining lives, while trademarks and goodwill are 
amortized over the estimated period of benefit, generally 5 to 20 years.

Research and Development - Research and development costs are charged to 
expense as incurred. Depreciation expense applicable to research and 
development facilities and equipment is included in Depreciation and 
amortization in the Consolidated Statement of Income ($11 million in 1998, $12 
million in 1997 and $11 million in 1996).

Income Taxes - Provisions have been made for deferred income taxes based on 
differences between financial statement and tax bases of assets and 
liabilities using currently enacted tax rates and regulations. 

Environmental Costs - Environmental expenditures are expensed or capitalized 
as appropriate, depending on their future economic benefit. Expenditures 
relating to an existing condition caused by past operations and having no 
future economic benefits are expensed. Environmental expenditures include site 
investigation, physical remediation, operation and maintenance, and legal and 
administrative costs. Environmental accruals are established for sites where 
it is probable that a loss has been incurred and the amount of the loss can 
reasonably be estimated. Where the estimate is a range and no amount within 
the range is a better estimate than any other amount, the corporation accrues 
the minimum amount in the range and includes the balance of the range in its 
reported contingencies.

Retirement Programs - The cost of pension benefits under the U.S. Retirement 
Program is determined by an independent actuarial firm using the projected 
unit credit actuarial cost method, with an unrecognized net asset at Jan. 1, 
1986, amortized over 15 years. Contributions to this program are made in 
accordance with the regulations of the Employee Retirement Income Security Act 
of 1974.
  The cost of postretirement benefits is recognized on the accrual basis over 
the period in which employees become eligible for benefits. 

Incentive Plans - The corporation measures compensation cost for the stock 
purchase plan and the stock option portion of its employee compensation plan 
using the intrinsic value based method of accounting prescribed by Accounting 
Principles Board Opinion 25, and makes pro forma disclosures of net income and 
earnings per share as if the fair value based method of accounting defined in 
Statement No. 123 had been applied. Compensation expense is recognized for 
other stock-based incentives issued under the long-term incentive plan and 
other programs.

Reclassifications - Certain prior year amounts have been reclassified to 
conform with the current year's presentation.

                                    - 26 -
<PAGE>


2  Supplementary Balance Sheet Detail

<TABLE>
<CAPTION>
Millions of dollars, at December 31,                 1998      1997
<S>                                                <C>        <C>
  Notes and accounts receivable
  Trade                                            $  783    $  826
  Other                                               172       178
                                                      955     1,004
  Less: Allowance for doubtful accounts                22        11
                                                   $  933    $  993
  Inventories
  Raw materials and supplies                       $  187    $  135
  Work in process                                      41        62
  Finished goods                                      439       407
                                                   $  667    $  604
  Property, plant and equipment
  Land and improvements                            $  345    $  328
  Buildings                                           437       407
  Machinery and equipment                           7,080     6,230
  Construction in progress and other                  547       742
                                                   $8,409    $7,707
  Other assets 
  Deferred charges                                 $  228    $  223
  Insurance recovery receivables                      104       147
  Long-term receivables                                27        49
  Patents, trademarks and goodwill                     80        96
                                                   $  439    $  515
  Other accrued liabilities
  Accrued accounts payable                         $  314    $  301
  Payrolls                                             56        55
  Environmental remediation costs                      60        68
  Postretirement benefit obligation                    38        34
  Employee profit sharing                              16        55
  Other                                               186       214
                                                   $  670    $  727
  Other long-term obligations
  Environmental remediation costs                  $  160    $  196
  Product liability costs                             107       174 
  Impairment of unused office space                   115       136 
  Postemployment benefits                              63        72 
  Other                                               157       160
                                                  $   602    $  738
  Accumulated other comprehensive loss
  Foreign currency translation adjustments(a)     $  (111)   $ (103)
  Unrealized gains on available-for-sale
    securities, net of tax(b)                           7         2
                                                   $ (104)   $ (101)
<FN>
(a) The corporation does not record deferred income tax on foreign currency 
    translation adjustments.
(b) Net of $4 million and $2 million of deferred income tax at Dec. 31, 1998 
    and 1997, respectively.
</FN>
</TABLE>

                                    - 27 -
<PAGE>


3  Supplementary Income Statement Detail
<TABLE>
<CAPTION>
Millions of dollars, for the year ended December 31,  1998  1997  1996
<S>                                                   <C>   <C>   <C>
Selling, administration and other expenses
Selling                                               $ 99  $124  $130
Administration                                         107   126   121
Other expenses                                          98    74    70
                                                      $304  $324  $321
Other income (expense) - net
Investment and interest income                        $ 26  $ 27  $ 32
Foreign currency adjustments                           (20)   (8)   (7)
Other                                                   46    18     6
                                                      $ 52  $ 37  $ 31
Interest expense
Interest incurred(a)                                  $157  $130  $121
Less: Interest capitalized and other adjustments        43    51    45
                                                      $114  $ 79  $ 76
<FN>
(a) Includes $12 million in 1998, 1997 and 1996, representing the interest 
component of certain leases. 
</FN>
</TABLE>

4  Other Comprehensive Income (Loss)

Comprehensive income is defined as any change in the corporation's equity from 
transactions and other events originating from non-owner sources. For the 
corporation, those changes are comprised of reported net income, changes in 
the unrealized appreciation or depreciation of the corporation's available-
for-sale securities and changes in unrealized foreign currency translation 
adjustments. The following summary presents the components of comprehensive 
income, other than net income:

<TABLE>
<CAPTION>
                                                        Income Tax
Millions of dollars                            Pre-Tax    Effect    After-Tax
<S>                                            <C>        <C>        <C>
Balance at December 31, 1995                   $  (10)    $    -     $  (10)
  Foreign currency translation adjustments        (11)         -        (11)
  Unrealized gains (losses) on securities:
    Unrealized holding gains (losses) 
      arising during period                        (5)        (1)        (4)
    Reclassification adjustment for 
      (gains) losses realized in net income         -          -          -
  Net unrealized losses                           (16)        (1)       (15)
Balance at December 31, 1996                   $  (26)    $   (1)    $  (25)
  Foreign currency translation adjustments        (81)         -        (81)
  Unrealized gains (losses) on securities:
    Unrealized holding gains (losses) 
      arising during period                         8          3          5
    Reclassification adjustment for 
      (gains) losses realized in net income         -          -          -
  Net unrealized losses                           (73)         3        (76)
Balance at December 31, 1997                   $  (99)    $    2     $ (101)
  Foreign currency translation adjustments         (8)         -         (8)
  Unrealized gains (losses) on securities:
    Unrealized holding gains (losses) 
      arising during period                         -          -          -
    Reclassification adjustment for 
      (gains) losses realized in net income         7          2          5
  Net unrealized losses                            (1)         2         (3)
Balance at December 31, 1998                   $ (100)    $    4     $ (104)
</TABLE>

                                    - 28 -
<PAGE>


5 Earnings Per Share

Basic and diluted earnings per share (EPS) are calculated as follows:
<TABLE>
<CAPTION>

Millions of dollars (except share and per share amounts),
for the year ended December 31,                                     1998         1997         1996
<S>                                                               <C>          <C>          <C>
Basic -
  Income before cumulative effect of change in 
    accounting principle                                          $  403       $  676       $  593
        Less:  Dividends on ESOP shares, pre-tax                       -           (9)         (13)
               Appreciation on ESOP shares redeemed for cash           -          (23)           -
  Income before cumulative effect of change in 
    accounting principle, adjusted for basic calculation             403          644          580
  Cumulative effect of change in accounting principle                  -          (17)           -
  Net income-common stockholders, adjusted 
    for basic calculation                                         $  403       $  627       $  580
  Weighted average shares outstanding for basic calculation  135,028,100  128,185,093  131,029,621
  Earnings per share -
  Income before cumulative effect of 
    change in accounting principle                                $ 2.98       $ 5.02       $ 4.43 
  Cumulative effect of change in accounting principle                  -        (0.13)           -
  Net income-common stockholders                                  $ 2.98       $ 4.89       $ 4.43
Diluted -
  Income before cumulative effect of change in 
    accounting principle, adjusted for basic calculation          $  403       $  644        $ 580
        Plus:  Dividends on ESOP shares, pre-tax                       -            9           13 
        Less:  Additional ESOP contribution resulting from 
                 assumed conversion of ESOP shares                     -           (1)          (1)
  Income before cumulative effect of change in 
    accounting principle, adjusted for diluted calculation           403          652          592 
  Cumulative effect of change in accounting principle                  -          (17)           -
  Net income-common stockholders, adjusted for 
    diluted calculation                                           $  403       $  635       $  592
  Weighted average shares outstanding for basic calculation  135,028,100  128,185,093  131,029,621
        Add:  Effect of stock options                          3,381,795    4,034,969    4,495,656
              Effect of equity put options                             -            -          403
              Shares issuable upon conversion of the 
                corporation's convertible ESOP shares                  -   11,739,036   16,120,754 
  Weighted average shares outstanding, adjusted for 
    diluted calculation                                      138,409,895  143,959,098  151,646,434 
  Earnings per share -
  Income before cumulative effect of change in 
    accounting principle, adjusted for diluted calculation        $ 2.91       $ 4.53       $ 3.90
  Cumulative effect of change in accounting principle                  -        (0.12)           -
  Net income-common stockholders, adjusted for 
    diluted calculation                                           $ 2.91       $ 4.41       $ 3.90
</TABLE>


                                    - 29 -
<PAGE>


6  Business and Geographic Segment Information

The corporation has two operating segments, Specialties & Intermediates (S&I) 
and Basic Chemicals & Polymers (BC&P). The S&I segment includes the 
corporation's specialty chemicals and polymers product lines, licensing, and 
solvents and chemical intermediates. The BC&P segment includes the 
corporation's ethylene and propylene manufacturing operations as well as the 
production of first-level ethylene and propylene derivatives-polyethylene, 
polypropylene, ethylene oxide and ethylene glycol. Each operating segment is a 
strategic business unit that offers products and services with different 
functionalities. They are managed separately because of the significant 
differences that exist in their products and services and in the methods 
required to produce, market and distribute them. In addition to its operating 
segments, the corporation's Other segment includes its non-core operations and 
financial transactions other than derivatives designated as hedges, which are 
included in the same segment as the item being hedged.
  The accounting policies of the segments are the same as those described in 
the summary of significant accounting policies. Sales of the BC&P segment 
include intersegment sales, principally ethylene oxide, which are made at the 
estimated market value of the products transferred. Administrative costs were 
allocated between the segments via a formula based on sales in 1998, and a 
formula based on capital, overhead and sales in 1997 and 1996; no significant 
difference in allocations between the segments resulted from the change in 
formula. Other costs and shared assets are principally allocated on the basis 
of pounds produced, gross fixed asset values or headcount, as appropriate. The 
corporation evaluates performance based on Income before interest expense and 
provision for income taxes (operating profit).
  Sales are attributed to countries based on customer ship-to addresses. Long-
lived assets are principally composed of Net Fixed Assets, Companies carried 
at equity, and certain Other assets. Investments of the corporation are 
assigned to the country in which the investee has its principal offices. Net 
sales and long-lived assets by country and geographic area were as follows:

<TABLE>
<CAPTION>
Millions of dollars 
for the year ended December 31,             1998    1997   1996
<S>                                       <C>     <C>     <C>
Net sales
United States, including 
  Puerto Rico                             $3,355  $3,784  $3,613 
Canada                                       211     247     210
Europe & Middle East                         802     924     858
Latin America                                408     431     362
Far East & Other                             883   1,116   1,063
Total International Operations            $2,304  $2,718  $2,493
                                          $5,659  $6,502  $6,106
</TABLE>

<TABLE>
<CAPTION>
Millions of dollars
at December 31,                             1998    1997    1996
<S>                                       <C>     <C>     <C>
Long-lived assets
United States, including 
  Puerto Rico                             $4,290  $4,021  $3,645
Canada                                       284     201     207
Europe & Middle East                         401     456     423
Latin America                                 91     111     114
Far East & Other                             127     122     122
Total International Operations            $  903  $  890  $  866
Total long-lived assets                    5,193   4,911   4,511
Current and other assets                  $2,098  $2,053  $2,035
  Total Assets                            $7,291  $6,964  $6,546
</TABLE>

                                    - 30 -
<PAGE>


<TABLE>
<CAPTION>
Millions of dollars                               S&I    BC&P   Other  Totals
<S>                                            <C>     <C>     <C>     <C>
1998          
  Net sales                                    $4,139  $1,520  $    -  $5,659
  Intersegment revenues                             -     282       -     282
  Segment revenues                              4,139   1,802       -   5,941
  Depreciation and amortization                   247     142       -     389
  Partnership income                               27       6       -      33
  Operating profit (loss)                         833      20     (50)    803
  Interest expense                                  -       -     114     114
  Income (loss) from corporate investments 
    carried at equity                               1     (67)      -     (66)
  Segment assets                                4,493   2,596     202   7,291
  Companies carried at equity                     298     326       -     624
  Expenditures for segment assets                 480     413       -     893
1997
  Net sales                                    $4,453  $2,049  $    -  $6,502
  Intersegment revenues                             -     371       -     371
  Segment revenues                              4,453   2,420       -   6,873
  Depreciation and amortization                   214     126       -     340
  Partnership income                              116      17       -     133
  Operating profit (loss)                         667     386      (8)  1,045
  Interest expense                                  -       -      79      79
  Income (loss) from corporate investments 
    carried at equity                               6      (3)      -       3
  Segment assets                                4,146   2,540     278   6,964
  Companies carried at equity                     277     413       -     690
  Expenditures for segment assets                 508     315       -     823
1996
  Net sales                                    $4,286  $1,820  $    -  $6,106
  Intersegment revenues                             -     305       -     305
  Segment revenues                              4,286   2,125       -   6,411
  Depreciation and amortization                   188     124       -     312
  Partnership income                              134      10       -     144
  Operating profit                                742     162      17     921
  Interest expense                                  -       -      76      76
  Income (loss) from corporate investments 
    carried at equity                               9     (25)      -     (16)
  Segment assets                                3,892   2,328     326   6,546
  Companies carried at equity                     263     432       -     695
  Expenditures for segment assets                 560     424       -     984
</TABLE>

  The operating profit of the S&I segment for 1998 includes a nonrecurring net 
gain of $189 million related to favorable settlements of UNIPOL Systems 
business litigation in the third and fourth quarters of 1998 and a $53 million 
reduction in earnings related to losses associated with Aspell Polymeres SNC 
in the third quarter of 1998.
  The operating profit of the S&I segment for 1997 includes a $12 million 
charge for the write-off of certain equipment associated with the 
corporation's ethylene propylene rubber project.

                                    - 31 -
<PAGE>


7  Income Taxes

The following is a summary of the U.S. and non-U.S. components of Income 
Before Provision for Income Taxes:

<TABLE>
<CAPTION>
Millions of dollars
for the year ended December 31,  1998  1997  1996
<S>                              <C>   <C>   <C>
U.S.                             $646  $897  $766
Non-U.S.                           43    69    79
                                 $689  $966  $845
</TABLE>


The following is an analysis of income tax expense:
<TABLE>
<CAPTION>
                                                            1998                 1997                 1996
Millions of dollars, for the year ended December 31,  Current  Deferred    Current  Deferred    Current  Deferred
<S>                                                      <C>       <C>        <C>       <C>        <C>       <C>
U.S. Federal income taxes                                $100      $ 86       $154      $ 80       $107      $ 79
U.S. business and research and 
  experimentation tax credits                             (27)        -        (14)        -         (8)        -
U.S. state and local taxes based on income                  6        31          1         4          1         2
Non-U.S. income taxes                                      20         1         52         2         54         1
                                                           99       118        193        86        154        82
Provision for income taxes                                    $217                  $279                 $236
</TABLE>


The tax effects of temporary differences that gave rise to significant 
portions of the deferred tax assets and deferred tax liabilities 
are as follows: 

<TABLE>
<CAPTION>
                                                     1998                     1997
                                             Deferred     Deferred    Deferred     Deferred 
Millions of dollars, at December 31,           Assets  Liabilities      Assets  Liabilities
<S>                                              <C>          <C>         <C>          <C>
Depreciation and amortization                    $  -         $553        $  -         $495
Postretirement and postemployment benefits        215            -         226            -
Environmental and litigation costs                 81            -         113            -
Sale/leaseback and related deferrals               90            -         101            -
Other                                             223          278         174          242
Gross deferred tax assets and liabilities         609          831         614          737
Net deferred tax liability                              $222                     $123
</TABLE>

                                    - 32 -
<PAGE>


  Net noncurrent deferred tax liabilities of $347 million ($263 million in 
1997) are included in Deferred credits in the Consolidated Balance Sheet. Net 
current deferred tax assets of $125 million ($135 million in 1997) are 
included in Other current assets. Net noncurrent deferred tax assets are zero 
in 1998 ($5 million in 1997 which were included in Other assets). In 1998 
there was no benefit from non-U.S. net operating loss carryforwards ($2 
million in 1997 which was included in deferred tax assets above).
  Undistributed earnings of affiliates intended to be reinvested indefinitely 
amounted to approximately $488 million at Dec. 31, 1998 ($469 million at Dec. 
31, 1997). Determination of deferred taxes related to these earnings is not 
practicable.
  An analysis of the difference between Provision for income taxes and the 
amount computed by applying the statutory Federal income tax rate to Income 
Before Provision for Income Taxes is as follows: 

<TABLE>
<CAPTION>
                                      Percentage of 
                                     Pre-Tax Income
For the year ended December 31,    1998   1997   1996
<S>                                <C>    <C>    <C>
Tax at statutory Federal rate      35.0%  35.0%  35.0%
Taxes related to operations
  outside the U.S.                  0.7   (0.7)  (1.0)
U.S. state and local taxes
  based on income                   3.4    0.3    0.3
Foreign sales corporation          (1.5)  (2.9)  (3.0)
Business credits                   (3.9)  (1.5)  (0.9)
Other, net                         (2.2)  (1.3)  (2.5)
Consolidated effective
  income tax rate                  31.5%  28.9%  27.9%
</TABLE>


8  Leases

Leases that meet the criteria for capitalization have been classified and 
accounted for as capital leases. For operating leases, primarily involving 
facilities and distribution equipment, the future minimum rental payments 
under leases with remaining noncancelable terms in excess of one year are:

<TABLE>
<CAPTION>
Millions of dollars
for the year ending December 31,
<S>                               <C>
1999                              $ 61
2000                                57
2001                                54
2002                                59
2003                                58
Subsequent to 2003                 140
Total minimum payments             429
Future sublease rentals             75
Net minimum rental commitments    $354
</TABLE>

  The present value of the net minimum rental payments amounts to $275 
million, of which $187 million pertains to the corporation's headquarters 
lease. Total lease and rental payments (net of sublease rental of $9 million 
in 1998, $21 million in 1997 and $20 million in 1996) were $56 million, $54 
million and $53 million for 1998, 1997 and 1996, respectively. 

                                    - 33 -
<PAGE>


9 Joint Ventures

The following are financial summaries of 33 percent- to 50 percent-owned joint 
ventures included in Companies carried at equity. The corporation's most 
significant joint ventures, classified as partnerships, include UOP LLC; 
Petromont and Company, Limited Partnership; Aspell Polymeres SNC; World 
Ethanol Company and Univation Technologies, LLC (formed in 1997).

<TABLE>
<CAPTION>
                                       Partnerships
Millions of dollars               1998      1997    1996
<S>                             <C>       <C>     <C>
Net sales(a)                    $1,905    $2,076  $2,109
Cost of sales                    1,210     1,242   1,338
Depreciation                       116        83      83
Partnership income                 154       249     242
UCC share of partnership
  income                        $   33(b) $  133  $  144
Current assets                  $  799    $  746  $  704
Noncurrent assets                  937       886     806
Total assets                     1,736     1,632   1,510
Current liabilities                430       451     608
Noncurrent liabilities             828       711     385
Total liabilities                1,258     1,162     993
Net assets                         478       470     517
UCC equity                      $  286    $  278  $  251
<FN>
(a) Includes $140 million net sales to the corporation in 1998 
    ($208 million in 1997 and $159 million in 1996).
(b) Includes $53 million of losses associated with Aspell Polymeres SNC.
</FN>
</TABLE>

  The corporation's joint ventures, classified as corporate investments, 
include Polimeri Europa S.r.l.; EQUATE Petrochemical Company K.S.C.; Nippon 
Unicar Company Limited; Alberta & Orient Glycol Company Limited; Asian Acetyls 
Co., Ltd. and several smaller entities.

<TABLE>
<CAPTION>
                             Corporate Investments
Millions of dollars          1998     1997     1996
<S>                        <C>      <C>      <C>
Net sales(a)               $2,151   $2,248   $2,059
Cost of sales               1,732    1,814    1,693
Depreciation                  256      109      129
Net income (loss)            (195)      75       (6)
UCC share of net 
  income (loss)            $  (66)  $    3   $  (16)
Current assets             $1,037      933   $  877
Noncurrent assets           2,932    3,252    2,918
Total assets                3,969    4,185    3,795
Current liabilities           963      872      888
Noncurrent liabilities      2,371    2,347    1,891
Total liabilities           3,334    3,219    2,779
Net assets                    635      966    1,016
UCC equity                 $  338   $  412   $  444
<FN>
(a) Includes $157 million net sales to the corporation in 1998 
    ($156 million in 1997 and $153 million in 1996).
</FN>
</TABLE>

  Dividends and distributions received from joint ventures and partnerships 
aggregated $123 million in 1998 ($126 million in 1997 and $141 million in 
1996).

                                    - 34 -
<PAGE>


10   Financial Instruments

Fair values of financial instruments are estimated by using a method that 
indicates the amount at which the instrument could be exchanged in a current 
transaction between willing parties, other than in a forced or liquidation 
sale. The fair values of the financial instruments included on the 
Consolidated Balance Sheet were estimated as follows: 

Cash, Short-Term Receivables and Accounts Payable - At Dec. 31, 1998 and 1997, 
the carrying amounts approximate fair values because of the short maturity of 
these instruments. 
  Outstanding foreign currency forward contracts and options used as a means 
of offsetting fluctuations in the dollar value of other foreign currency 
accounts receivable and payable and earnings fluctuations from anticipated 
foreign currency cash flows totaled $220 million at Dec. 31, 1998 ($185 
million at Dec. 31, 1997). In addition to the above, at Dec. 31, 1998, the 
corporation held foreign currency options in the amount of $199 million (U.S. 
dollar equivalent) to hedge a commitment to lend money to fund construction of 
operating facilities at specific future dates by one of its foreign 
subsidiaries. Such commitment is supported by commitments to third parties. 
The premiums on the options and any gains or losses are being capitalized as 
part of the intercompany loan and amortized to income as an adjustment to the 
effective interest yield of such loan over its repayment term. At Dec. 31, 
1998, $3 million had been capitalized. Recognized net gains and losses 
associated with all foreign currency purchased options and forward contracts 
held during 1998 and 1997, and the average fair market value of those 
contracts, were not material. These gains and losses were generally offset by 
changes in the U.S. dollar value equivalents of underlying foreign currency 
transactions.

Investments - The corporation's investments in joint ventures and other 
businesses generally involve entities for which it is not practicable to 
determine fair values. 

Long-Term Receivables - The fair values of long-term receivables are 
calculated using current interest rates and consideration of underlying 
collateral where appropriate. The fair values, which approximate the carrying 
values of $27 million and $49 million, are included in Other assets in the 
Consolidated Balance Sheet at Dec. 31, 1998 and 1997, respectively. 

Debt - The corporation uses various types of financial instruments, including 
interest rate swaps and forward rate agreements, to manage exposure to 
financial market risk caused by interest rate fluctuations. An interest rate 
swap held at Dec. 31, 1998 and 1997, had a nominal carrying amount and fair 
value.

Carrying Amounts and Fair Values - The carrying amounts and fair values of the 
corporation's investments, long-term receivables and debt financial 
instruments at Dec. 31, 1998 and 1997, are summarized in the table below. Fair 
values are based on quoted market values, where available, or discounted cash 
flows (principally long-term debt). 

<TABLE>
<CAPTION>
Millions of dollars     
at December 31,                1998               1997
                       Carrying     Fair  Carrying     Fair
Assets (Liabilities)     Amount    Value    Amount    Value
<S>                        <C>      <C>       <C>      <C>
Investments and 
  receivables              $168     $168      $162     $162 
Short- and 
  long-term debt         (2,222)  (2,266)   (1,887)  (1,956)
</TABLE>

                                    - 35 -
<PAGE>


11  Long-Term Debt

<TABLE>
<CAPTION>
Millions of dollars, at December 31,                1998    1997
<S>                                               <C>     <C>
6.25%  Notes due 2003                             $  250  $    -
6.75%  Notes due 2003                                125     125
6.79%  Debentures due 2025(a)                        250     250
7.00%  Notes due 1999                                175     175
7.50%  Debentures due 2025                           150     150
7.75%  Debentures due 2096(b)                        200     200
7.875%  Debentures due 2023                          175     175
8.75%  Debentures due 2022(c)                        117     117
Floating Rate Public Notes due 2000                  110       -
Pollution control and other 
  facility obligations                               239     242
Other debt - various maturities 
  and interest rates                                  23      29
                                                   1,814   1,463
Less: Payments to be made within 1 year               18       5
                                                  $1,796  $1,458
<FN>
(a) Holders may request redemption of these debentures from the corporation
    on June 1, 2005.
(b) The maturity may be shortened under certain circumstances to preserve
    the deductibility of interest payments for Federal income tax purposes.
(c) Redeemable at the option of the corporation on or after Aug. 1, 2002.
</FN>
</TABLE>

  The corporation has a credit agreement with a group of banks permitting the 
corporation to borrow up to $1 billion at any time through January 2002 with 
the option, subject to certain conditions, to increase the available credit by 
$250 million and to extend the maturity date of the agreement to maintain a 
five year term. The credit agreement permits the corporation to borrow funds 
under several different programs, including the euro-dollar, Certificate of 
Deposit (CD), Base Rate or Money Market London Interbank Offered Rate (LIBOR) 
programs. Maturity dates for these programs range from 30 days to twelve 
months. The interest rate for each of these programs is contingent on either 
the euro-dollar, CD rate, Federal funds rate or LIBOR and is determined based 
on a calculation included in the agreement. The corporation must pay an annual 
facility fee based on the rating of the corporation's long-term debt 
securities by either Moody's Investors Service, Inc. or Standard and Poor's 
Rating Service as indicated in the agreement. As of Dec. 31, 1998, there were 
no outstanding amounts against this agreement. The corporation intends to 
refinance the 7.00% Notes maturing in August 1999 either by borrowing under 
this credit agreement or under a prospective borrowing. Accordingly, such 
amount has been classified as long-term debt.
  The corporation has an effective shelf registration statement available 
covering $390 million of public debt securities at Dec. 31, 1998, which may be 
used under a medium-term-note program.
  In 1998, the corporation issued $250 million of 6.25% Notes due in June 
2003, and $110 million of floating rate public notes due in April 2000. The 
floating rate public notes bear interest at a rate which will be reset 
quarterly at the three-month LIBOR plus 0.65 percent. At Dec. 31, 1998 
the interest rate on these notes was 5.84 percent.  
  The corporation's credit agreement and the indentures under which notes and 
debentures are issued contain covenants normal for these types of instruments. 
These covenants place certain limits on the corporation's ability to merge 
with another entity, sell assets, engage in sale-leaseback transactions, incur 
debt or create liens on assets. In addition, the credit agreement requires the 
corporation to meet leverage and interest coverage tests.
  Pollution control and other facility obligations represent state, 
commonwealth and local governmental bond financing of pollution control and 
other facilities and are treated for accounting and tax purposes as debt of 
the corporation. These tax-exempt obligations mature at various dates from 
1999 through 2023 and had an average annual effective interest rate of 7.2 
percent in 1998 and 1997.
  The weighted average and effective interest rates in 1998 on the 
corporation's fixed-rate debt, excluding pollution control and other facility 
obligations, were 7.5 percent in 1998 (7.7 percent in 1997). The corporation's 
weighted average interest rate on short-term borrowings outstanding as of Dec. 
31, 1998 was 6.0 percent (6.4 percent at Dec. 31, 1997).
  Payments due on long-term debt in the four years following 1999 are: 2000, 
$117 million; 2001, $21 million; 2002, $189 million, and 2003, $381 million.


12  Minority Interest

In January 1997, a newly formed real estate investment trust subsidiary issued 
$250 million of preferred stock bearing a current dividend yield of 14 percent 
for 10 years and 1 percent thereafter. In October 1997, the preferred shares 
were redeemed for $240 million.

                                    - 36 -
<PAGE>


13  Stockholders' Equity

Subject to the following discussion, each outstanding share of common stock 
has identical rights in voting on corporate matters, dividends when declared, 
liquidation and other corporate matters.
  Each outstanding share of common stock bears one Right entitling its holder, 
under certain circumstances, to buy a share of common stock at a purchase 
price of $37.67 (subject to adjustment). The Rights may not be exercised until 
10 days after a person or group acquires 20 percent or more of UCC's common 
stock, or until a date determined by the board of directors following 
announcement of a tender offer that, if consummated, would result in 20 
percent or more ownership of the common stock. Until then, separate Rights 
certificates will not be issued, nor will the Rights be traded separately
from the stock.
  Should an acquirer become the beneficial owner of 20 percent of the common 
stock, and under certain additional circumstances, the corporation's 
stockholders (other than the acquirer) would have the right to buy common 
stock in Union Carbide Corporation, or in the surviving enterprise if the 
corporation is acquired, having a value equal to two times the purchase price 
of the Right then in effect.
  The Rights will expire on Aug. 31, 1999, unless redeemed prior to that date. 
The redemption price is $0.01 per Right.
  Since inception of its share repurchase authorization in 1993 through Dec. 
31, 1998, the corporation has repurchased 55.4 million shares (6.1 million 
shares during 1998) out of a total authorization of 60 million shares, at an 
average effective price of $35.82 per share. The corporation will continue to 
acquire additional shares from time to time at prevailing market prices, at a 
rate consistent with the combination of corporate cash flow and market 
conditions.
  In conjunction with the corporation's common stock buyback program, put 
options were sold in a series of private placements entitling the holders to 
sell 12.9 million shares of common stock to UCC at specified prices upon 
exercise of the options. Since inception of this program through Dec. 31, 
1998, options representing 9.8 million common shares have expired unexercised, 
while options representing 3.1 million shares were exercised for $129 million, 
or an average price of $40.94 per share. There were no options issued during 
1998, nor were there any outstanding options at Dec. 31, 1998. Premiums 
received since inception of the program, which are recorded as Additional 
paid-in capital, have reduced the average price of repurchased shares to 
$35.82 per share from $36.07.


14  Employee Stock Ownership Plan

The Union Carbide Corporation Employee Stock Ownership Plan (ESOP) is an 
integral part of the Savings and Investment Program (the Program) for 
employees. Prior to October 1997, each share of the corporation's preferred 
stock held by the ESOP was convertible into and had the same voting rights as 
one share of the corporation's common stock. The annual preferred dividend was 
$0.794 per share. In October 1997, the trustee of the ESOP exercised its right 
to convert all outstanding ESOP preferred stock into shares of the 
corporation's common stock (ESOP shares). As a result of the conversion, the 
corporation's common stock outstanding at that date was increased by 15.4 
million shares.
  Substantially all full-time employees in the U.S. are eligible to 
participate in the ESOP through the allocation of ESOP shares equivalent to 
the corporation's matching contribution of 75 percent of eligible employee 
contributions to the Program. In addition, eligible employees can receive the 
equivalent of up to twenty days pay in ESOP shares through the corporation's 
ESOP profit sharing plan. 
  Common shares held by the ESOP generally are sold in the open market when 
employees make withdrawals or sell ESOP shares within their account. 
  The cost of the ESOP is recognized as incurred and was $7 million in 1998 
($7 million and $2 million in 1997 and 1996, respectively). The increase in 
1998 and 1997 costs, compared to 1996, was principally due to the allocation 
of more shares to participants through the corporation's ESOP profit sharing 
plan. At Dec. 31, 1998, 14.6 million common shares held by the ESOP were 
outstanding, 7.1 million of which were allocated to employees' accounts. 
During 1998, 1.4 million ESOP shares were allocated to employees' accounts.

                                    - 37 -
<PAGE>


15  Incentive Plans


In 1997, stockholders approved the 1997 Union Carbide Long-Term Incentive Plan 
for key employees. The Plan provides for granting incentive and nonqualified 
stock options; exercise payment rights; grants of stock, including restricted 
stock, and performance awards. Holders of options may be granted the right to 
receive payments of amounts equal to the regular cash dividends paid to 
holders of the corporation's common stock during the period an option is 
outstanding. The number of shares granted or subject to options cannot exceed 
six million under the Plan. Option prices are equal to the closing price of 
the corporation's common stock on the date of the grant, as listed on the New 
York Stock Exchange Composite Transactions. Options generally become 
exercisable two years after such date. Options may not have a duration of more 
than ten years. The option price may be settled in cash, common shares of the 
corporation currently owned by a participant, withholding stock shares from 
the exercise or a combination of these alternatives. Restricted stock award 
shares are entitled to vote and dividends are credited to the holder's 
account, but these shares are generally nontransferable for varying periods 
after the grant date. Once the vesting conditions are met, the shares become 
fully transferable. Performance awards may be paid in common stock, cash or 
other forms of property. No dividend-equivalent payment rights or performance 
awards were granted in 1998 or 1997.
  No awards were made in 1998 or 1997, and no further awards can be made, 
under previous plans. Prior plans still have options outstanding and 
restricted stock not yet vested, whose terms are generally similar to 
nonqualified stock options and restricted stock grants under the 1997 plan. 
  Changes in outstanding fixed price options were as follows: 


<TABLE>
<CAPTION>
                                             1998                    1997                    1996
                                                   Weighted                Weighted                Weighted 
                                                    Average                 Average                 Average
Shares in thousands                  Shares  Exercise Price  Shares  Exercise Price  Shares  Exercise Price
<S>                                  <C>             <C>     <C>             <C>     <C>             <C>
Outstanding at January 1             12,533          $25.48  12,782          $21.45  13,350          $18.54
Granted                               1,472           43.88   1,508           46.31   1,166           45.55
Exercised                            (1,141)          15.60  (1,717)          13.45  (1,569)          13.05
Canceled or expired                    (114)          46.21     (40)          38.47    (165)          36.00
Outstanding at December 31           12,750          $28.31  12,533          $25.48  12,782          $21.45
Options exercisable at December 31    9,874                   9,889                  10,460
</TABLE>


  Options were exercised during 1998 at prices ranging from $6.70 to $40.38 
per share ($6.70 to $45.63 per share during 1997 and $6.70 to $28.63 per share 
during 1996). 

                                    - 38 -
<PAGE>


The following table summarizes information about fixed price option shares 
outstanding at Dec. 31, 1998:
<TABLE>
<CAPTION>
                                            Weighted Average
                                    Shares         Remaining  Weighted Average
Shares in thousands            Outstanding  Contractual Life    Exercise Price
<S>                                  <C>           <C>                  <C>
Range of Exercise Prices
$ 6.70 to $ 9.54                     2,296         2.3 years            $ 8.38
$11.37 to $16.75                     1,908         3.8 years             16.38
$21.63 to $28.63                     3,466         5.4 years             24.81
$39.88 to $46.31                     5,080(a)      8.6 years             44.18
                                    12,750
<FN>
(a) At Dec. 31, 1998, 2.204 million options were exercisable at an average 
    price of $43.02.
</FN>
</TABLE>

Had compensation cost related to the fixed price options been recorded at fair 
value on the dates of grant in accordance with Statement No. 123, the effect 
on the corporation's net income and EPS amounts would have been as follows:

<TABLE>
<CAPTION>
Millions of dollars 
(except per share figures)
for the year ended December 31,  1998   1997   1996
<S>                             <C>    <C>    <C>
Net income -
  common stockholders  
    As reported                 $ 403  $ 652  $ 583
    Pro forma                   $ 388  $ 639  $ 576
Basic EPS  
    As reported                 $2.98  $4.89  $4.43
    Pro forma                   $2.87  $4.79  $4.37
Diluted EPS          
    As reported                 $2.91  $4.41  $3.90
    Pro forma                   $2.80  $4.32  $3.86
</TABLE>

  The Black-Scholes Option Pricing Model was used to estimate the fair values 
of options granted during 1998, 1997 and 1996. The assumptions used for these 
grants included a seven-year average expected life for 1998 (six-year average 
for 1997 and 1996), and zero-coupon U.S. government risk free interest rates 
of 4.41%, 5.92%, and 5.95%; current dividend yields of 2.22%, 1.73%, and 
1.78%, and volatility of 29.47%, 28.77%, and 28.00% for the years ended Dec. 
31, 1998, 1997 and 1996, respectively. The weighted average fair values of 
options granted during the years 1998, 1997 and 1996 were $15.15, $15.54 and 
$15.31, respectively.
  In 1997, the board of directors approved the 1997 Union Carbide Corporation 
EPS Incentive Plan for a limited number of senior managers. It is designed to 
grant awards if the corporation achieves $4.00 or more diluted earnings per 
share performance during 1999 and 2000. The plan requires these senior 
managers to put an amount equivalent to a portion of one year's annual base 
pay at risk, up to 100 percent, should diluted earnings per share not equal or 
exceed $4.00 in the year 2000. The amount at risk will be deducted from 
compensation over three years and converted to units equivalent to common 
stock using a $47.75 share price, the closing price of the corporation's 
common stock on the date the plan was approved by the board of directors. 
Participants could be awarded up to four times the number of units at 
risk for each of the years 1999 and 2000, depending on the extent to which the 
goals of the plan are exceeded. Participants will also be credited with 
dividend-equivalents in the form of additional units. Awards, if any, under 
the plan will be in cash and paid in 2002, 2003 and 2004. Failure to meet the 
requirements of the plan will result in forfeiture of the amounts at risk.

                                    - 39 -
<PAGE>


16  Retirement Programs

The noncontributory defined benefit retirement program of Union Carbide 
Corporation (U.S. Retirement Program) covers substantially all U.S. employees 
and certain employees in other countries. Pension benefits are based primarily 
on years of service and compensation levels prior to retirement. Pension 
coverage for employees of the corporation's non-U.S. consolidated subsidiaries 
is provided through separate plans, to the extent deemed appropriate. 
Obligations under such plans are principally provided for by depositing funds 
with trustees.
  The corporation provides health care and life insurance benefits (Other 
Benefits) for eligible retired employees and their eligible dependents. These 
benefits are provided through various insurance companies and health care 
providers. The health care plans are contributory with participants' 
contributions adjusted annually; the life insurance plans are noncontributory.  
  The corporation's significant retirement programs are its U.S. and Canadian 
plans. The funded status, actuarial assumptions, health care cost trends, and 
components of net periodic benefit costs of these plans combined is as 
follows:

<TABLE>
<CAPTION>
                                                     Pension         Other 
                                                    Benefits        Benefits
Millions of dollars, 
  for the year ended December 31,                 1998    1997    1998    1997 
<S>                                             <C>     <C>     <C>     <C>
Change in plan assets
  Fair value of plan assets, beginning of year  $3,769  $3,118  $   17  $   17
  Actual gain (loss) on plan assets                736     821       6       8
  Foreign currency exchange rate changes           (12)     (6)      -       -
  Employer contribution                              -      10       -       -
  Benefits paid                                   (182)   (174)     (9)     (8)
  Fair value of plan assets, end of year        $4,311  $3,769  $   14  $   17
Change in benefit obligation
  Benefit obligation, beginning of year         $3,278  $2,927  $  503  $  465
  Service cost                                      60      51      14      14
  Interest cost                                    205     206      30      33
  Amendments                                         -       1     (93)      2
  Plan participants' contributions                   -       -      22      21
  Foreign currency exchange rate changes            (7)     (3)     (1)     (1)
  Actuarial loss                                   129     278      27      27
  Benefits paid(a)                                (193)   (182)    (59)    (58)
  Benefit obligation, end of year               $3,472  $3,278  $  443  $  503
Funded status                                   $  839  $  491  $ (429) $ (486)
<FN>
(a)  Includes nonfunded plan benefits paid directly by the corporation.
</FN>
</TABLE>


The funded status is composed of the following elements:
<TABLE>
<CAPTION>
                                               Pension          Other
                                              Benefits         Benefits
Millions of dollars, at December 31,        1998    1997    1998     1997 
<S>                                       <C>     <C>     <C>      <C>
Unrecognized net actuarial gain (loss)    $  818  $  455  $  (34)  $  (17)
Unrecognized transition asset                 29      42       -        -
Unrecognized prior service (cost) credit     (14)    (17)     93       29
Prepaid benefit cost                          30      27       -        -
Accrued benefit cost                         (24)    (16)   (488)    (498)
Funded status                             $  839  $  491  $ (429)  $ (486)
</TABLE>

  The Other Benefits benefit obligation is net of $99 million at Dec. 31, 1998 
($131 million at Dec. 31, 1997), which is reimbursed to the corporation in 
part by previously owned businesses under ongoing benefit-sharing agreements.

                                    - 40 -
<PAGE>


Benefit obligations are valued using the 1994 Uninsured Pensioner Mortality 
Table. The actuarial assumptions used were as follows:
<TABLE>
<CAPTION>
                                                      Pension        Other
                                                     Benefits       Benefits
At December 31,                                     1998   1997   1998   1997
<S>                                                 <C>    <C>    <C>    <C>
Discount rate for determining benefit obligation    6.00%  6.50%  6.00%  6.50%
Expected long-term rate of return on plan assets    8.00%  8.00%  8.00%  8.00%
Rate of increase in compensation levels             3.25%  3.75%     -      -
</TABLE>

Health care costs are projected to increase as follows:
<TABLE>
<CAPTION>
                                                Medicare          Medicare
                               Pre-Medicare  Supplement Plan  Alternative Plan
<S>                                <C>           <C>               <C>
Immediate                          7.50%         8.00%             16.83%
Ultimate                           5.00%         5.00%              5.00%
Year ultimate trend is reached      2004          2004               2017
</TABLE>

<TABLE>
<CAPTION>
                                        Pension Benefits      Other Benefits
Millions of dollars, 
  for the year ended December 31,      1998   1997   1996   1998   1997   1996
<S>                                   <C>    <C>    <C>    <C>    <C>    <C>
Components of net periodic benefit costs
  Service cost                        $  60  $  51  $  49  $  14  $  14  $  13
  Interest cost                         205    206    194     30     33     31 
  Expected return on plan assets       (242)  (233)  (215)    (1)    (2)    (2)
  Amortization of 
    transition obligation               (12)   (12)   (12)     -      -      -
  Amortization of prior service costs     3      3      3    (29)   (21)   (21)
  Recognized net actuarial (gain) loss   (1)    (1)     3      -      -      -
  Net periodic benefit costs          $  13  $  14  $  22  $  14  $  24  $  21
</TABLE>

  The accounting for the health care plans anticipates future cost-sharing 
changes to the written plan that are consistent with the company's expressed 
intent to control these costs. As of July 1, 1998, the corporation adopted 
certain amendments which will be effective Jan. 1, 1999 through Jan. 1, 2001. 
These amendments will encourage retirees to transfer their health care 
coverage into lower costing plans and usually to choose generic drugs. 
Effective Jan. 1, 1999, certain retirees will also pay a greater percentage of 
premium contributions. In addition, the plan provides that the corporation's 
per individual subsidy for pre-Medicare and Medicare medical coverage is 
capped at two times its subsidy to the company-sponsored plans in 2000.
  The corporation funded postretirement benefits for certain retirees who 
retired prior to Dec. 31, 1988. The funds are invested primarily in common 
stocks. 
  At Dec. 31, 1998, the effect on the accumulated postretirement benefit 
obligation of a one-percentage-point change in assumed health care cost trend 
rates would be as follows: 

<TABLE>
<CAPTION>
                                           1998                  1997
                                     1 Percentage Point    1 Percentage Point
Millions of dollars                 Increase  (Decrease)  Increase  (Decrease)
<S>                                   <C>       <C>         <C>       <C>
Effect on total of service 
  and interest cost components        $  3      $( 3)       $  4      $( 3)
Effect on post-retirement 
  benefit obligation                    28       (30)         33       (30)
</TABLE>

Deferred Compensation Plan
  Since Jan. 1, 1995, the corporation has provided an unfunded, nonqualified 
deferred compensation plan to certain key employees, offering them an election 
to defer a portion of their gross pay. The corporation's obligation to 
employees is adjusted to reflect changes in the market values of employees' 
investment choices. With limited exceptions, participants' deferred account 
balances are scheduled for payment at or after full retirement.

                                    - 41 -
<PAGE>


17 Commitments and Contingencies

Purchase Agreements - The corporation has three major agreements for the 
purchase of ethylene-related products and three other purchase agreements in 
the U.S. and Canada (two in 1997 and 1996). Total purchases under these 
agreements were $196 million, $245 million and $233 million in 1998, 1997 and 
1996, respectively. The net present value of the fixed and determinable 
portion of obligations under these purchase commitments at Dec. 31, 1998 (at 
current exchange rates, where applicable) is presented in the following table:

<TABLE>
<CAPTION>
Millions of dollars
for the year ending December 31,
<S>                                 <C>
1999                                $ 71
2000                                  39
2001                                  32
2002                                  28
2003                                  19
2004 through 2014                     74
Total                               $263
</TABLE>

Environmental - The corporation is subject to loss contingencies resulting 
from environmental laws and regulations, which include obligations to remove 
or remediate the effects on the environment of the disposal or release of 
certain wastes and substances at various sites. The corporation has 
established accruals in current dollars for those hazardous waste sites where 
it is probable that a loss has been incurred and the amount of the loss can 
reasonably be estimated. The reliability and precision of the loss estimates 
are affected by numerous factors, such as different stages of site evaluation, 
the allocation of responsibility among potentially responsible parties and the 
assertion of additional claims. The corporation adjusts its accruals as new 
remediation requirements are defined, as information becomes available 
permitting reasonable estimates to be made and to reflect new and changing 
facts.
  At Dec. 31, 1998, the corporation had established environmental remediation 
accruals in the amount of $220 million ($264 million in 1997). These accruals 
have two components, estimated future expenditures for site investigation and 
cleanup and estimated future expenditures for closure and postclosure 
activities. In addition, the corporation had environmental loss contingencies 
of $121 million at Dec. 31, 1998.
  The corporation has sole responsibility for the remediation of approximately 
37 percent of its environmental sites for which accruals have been 
established. These sites are well advanced in the investigation and cleanup 
stage. The corporation's environmental accruals at Dec. 31, 1998, included 
$169 million for these sites ($197 million at Dec. 31, 1997), of which $65 
million ($79 million at Dec. 31, 1997) was for estimated future expenditures 
for site investigation and cleanup and $104 million ($118 million at Dec. 31, 
1997) was for estimated future expenditures for closure and postclosure 
activities. In addition, $66 million of the corporation's environmental loss 
contingencies at Dec. 31, 1998, related to these sites. The two sites with the 
largest total potential cost to the corporation are nonoperating sites. Of the 
above accruals, these sites accounted for $39 million ($36 million at Dec. 31, 
1997), of which $19 million ($17 million at Dec. 31, 1997) was for estimated 
future expenditures for site investigation and cleanup and $20 million ($19 
million at Dec. 31, 1997) was for estimated future expenditures for closure 
and postclosure activities. In addition, $44 million of the above 
environmental loss contingencies related to these sites.
  The corporation does not have sole responsibility at the remainder of its 
environmental sites for which accruals have been established. All of these 
sites are in the investigation and cleanup stage. The corporation's 
environmental accruals at Dec. 31, 1998, included $51 million for estimated 
future expenditures for site investigation and cleanup at these sites ($67 
million at Dec. 31, 1997). In addition, $55 million of the corporation's 
environmental loss contingencies related to these sites. The largest of these 
sites is a nonoperating site. Of the above accruals, this site accounted for 
$10 million ($14 million at Dec. 31, 1997) for estimated future expenditures 
for site investigation and cleanup. In addition, $3 million of the above 
environmental loss contingencies related to this site.

                                    - 42 -
<PAGE>


  Worldwide expenses related to environmental protection for compliance with 
Federal, state and local laws regulating solid and hazardous wastes and 
discharge of materials to air and water, as well as for waste site remedial 
activities, totaled $91 million in 1998, $100 million in 1997 and $110 million 
in 1996.

Other - The corporation has severally guaranteed 45 percent (approximately 
$562 million at Dec. 31, 1998) of EQUATE Petrochemical Company's debt and 
working capital financing needs until certain completion and financial tests 
are achieved. If these tests are met, a $54 million several guarantee will 
provide ongoing support thereafter. The corporation has also severally 
guaranteed certain sales volume targets until EQUATE's sales capabilities are 
proved. In addition, the corporation has pledged its shares in EQUATE as 
security for EQUATE's debt. The corporation has political risk insurance 
coverage for its equity investment and, through March 31, 1999, substantially 
all of its guarantee of EQUATE's debt. The corporation is in the process of 
extending the political risk insurance for its debt guarantee through March 
31, 2001.
  The corporation and its consolidated subsidiaries had additional contingent 
obligations at Dec. 31, 1998, totaling $91 million, of which $55 million 
related to guarantees of debt.

Litigation - The corporation and its consolidated subsidiaries are involved in 
a number of legal proceedings and claims with both private and governmental 
parties. These cover a wide range of matters, including, but not limited to: 
product liability; trade regulation; governmental regulatory proceedings; 
health, safety and environmental matters; employment; patents; contracts; and 
taxes. In some of these legal proceedings and claims, the cost of remedies 
that may be sought or damages claimed is substantial.  
  The corporation has recorded nonenvironmental litigation accruals of $120 
million, and related insurance recovery receivables of $104 million. At Dec. 
31, 1998, the corporation had net nonenvironmental litigation loss 
contingencies of $51 million.
  While it is impossible at this time to determine with certainty the ultimate 
outcome of any legal proceedings and claims referred to in this note, 
management believes that adequate provisions have been made for probable 
losses with respect thereto and that such ultimate outcome, after provisions 
therefor, will not have a material adverse effect on the consolidated 
financial position of the corporation, but could have a material effect on 
consolidated results of operations in a given quarter or year. Should any 
losses be sustained in connection with any of such legal proceedings and 
claims in excess of provisions therefor, they will be charged to income when 
determinable.

                                    - 43 -
<PAGE>


Management's Statement of Responsibility for Financial Statements

  Union Carbide Corporation's financial statements are prepared by management, 
which is responsible for their fairness, integrity and objectivity. The 
accompanying financial statements have been prepared in conformity with 
generally accepted accounting principles and, accordingly, include amounts 
that are estimates and judgments. All historical financial information in this 
annual report is consistent with the accompanying financial statements.
  The corporation maintains accounting systems, including internal accounting 
controls monitored by a staff of internal auditors, that are designed to 
provide reasonable assurance of the reliability of financial records and the 
protection of assets. The concept of reasonable assurance is based on 
recognition that the cost of a system must not exceed the related benefits. 
The effectiveness of those systems depends primarily upon the careful 
selection of financial and other managers, clear delegation of authority and 
assignment of accountability, inculcation of high business ethics and 
conflict-of-interest standards, policies and procedures for coordinating the 
management of corporate resources and the leadership and commitment of top 
management.
  The corporation's financial statements are audited by KPMG LLP, independent 
certified public accountants, in accordance with generally accepted auditing 
standards. These standards provide for the auditors to consider the 
corporation's internal control structure to the extent they deem necessary in 
order to issue their opinion on the financial statements.
  The Audit Committee of the board of directors, which consists solely of 
nonemployee directors, is responsible for overseeing the functioning of the 
accounting system and related controls and the preparation of annual financial 
statements. The Audit Committee recommends to the board of directors the 
selection of the independent auditors, which is submitted to the stockholders 
for ratification. The Audit Committee periodically meets with the independent 
auditors, management and internal auditors to review and evaluate their 
accounting, auditing and financial reporting activities and responsibilities. 
The independent and internal auditors have full and free access to the Audit 
Committee and meet with the committee, with and without management present.

William H. Joyce                                                John K. Wulff
Chairman, President and                       Vice-President, Chief Financial
Chief Executive Officer                                Officer and Controller

Danbury, Conn.
Jan. 22, 1999


Independent Auditors' Report
KPMG LLP

To the Stockholders and Board of Directors of Union Carbide Corporation:

  We have audited the accompanying consolidated balance sheet of Union Carbide 
Corporation and subsidiaries as of Dec. 31, 1998 and 1997, and the related 
consolidated statements of income, stockholders' equity, and cash flows for 
each of the years in the three-year period ended Dec. 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 financial statements. An audit 
also includes assessing the accounting principles used and significant 
estimates made by management, as well as evaluating the overall financial 
statement presentation. We believe that our audits provide a reasonable basis 
for our opinion.
  In our opinion, the consolidated financial statements referred to above 
present fairly, in all material respects, the financial position of Union 
Carbide Corporation and subsidiaries at Dec. 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 Dec. 31, 1998, in conformity with generally accepted 
accounting principles.

KPMG LLP
Stamford, Conn.
Jan. 22, 1999

                                    - 44 -
<PAGE>


Quarterly Data

<TABLE>
<CAPTION>
Union Carbide Corporation and Subsidiaries

Millions of dollars                     1Q       2Q       3Q       4Q     Year
<S>                                 <C>      <C>      <C>      <C>      <C>
1998
  Net sales                         $1,561   $1,459   $1,350    $1,289   $5,659
  Cost of sales                      1,161    1,087    1,036     1,010    4,294
  Gross profit                         400      372      314       279    1,365
  Depreciation and amortization         95       98       95       101      389
  Operating profit                     232      203      190(b)(c) 178(b)   803
  Net income                           142      118       76        67      403
  Net income - common stockholders     142      118       76        67      403
1997
  Net sales                         $1,638   $1,666   $1,659    $1,539   $6,502
  Cost of sales                      1,231    1,220    1,199     1,156    4,806
  Gross profit                         407      446      460       383    1,696
  Depreciation and amortization         82       87       87        84      340
  Operating profit                     247      291      291       216    1,045
  Income before cumulative effect of
    change in accounting principle     157      191      181       147      676
  Cumulative effect of change in 
    accounting principle                 -        -        -       (17)     (17)
  Net income                           157      191      181       130      659
  Net income - common stockholders     155      188      179       130      652
<FN>
(b)  Includes $118 million and $71 million in the third and fourth quarters, 
     respectively, of favorable litigation settlements related to the UNIPOL 
     Systems business.
(c)  Includes $53 million in losses associated with Aspell Polymeres SNC, the 
     corporation's joint venture in France.
</FN>
</TABLE>

<TABLE>
<CAPTION>
Dollars per common share                1Q       2Q       3Q       4Q     Year
<S>                                 <C>      <C>      <C>      <C>      <C>
1998
Basic - 
  Net income - common stockholders  $ 1.03   $ 0.87   $ 0.56   $ 0.50   $ 2.98
Diluted - 
  Net income - common stockholders    1.01     0.85     0.55     0.49     2.91
  Cash dividends declared           0.2250   0.2250   0.2250   0.2250     0.90
  Market price - high(a)           50.3125  55.7500  55.6250  46.2500  55.7500
  Market price - low(a)            40.1250  45.3125  36.7500  37.4375  36.7500
1997
Basic -
  Income before cumulative effect of
    change in accounting principle  $ 1.17   $ 1.46   $ 1.34   $ 1.07   $ 5.02
  Cumulative effect of change in 
    accounting principle                 -        -        -    (0.13)   (0.13)
  Net income - common stockholders    1.17     1.46     1.34     0.94     4.89
Diluted -
  Income before cumulative effect of
    change in accounting principle    1.03     1.28     1.18     1.04     4.53
  Cumulative effect of change in 
    accounting principle                 -        -        -    (0.12)   (0.12)
  Net income - common stockholders    1.03     1.28     1.18     0.92     4.41
  Cash dividends declared           0.1875   0.1875   0.4125        -   0.7875
  Market price - high(a)           49.3750  50.6250  56.8125  50.1250  56.8125
  Market price - low(a)            40.5000  42.5000  46.6875  41.4375  40.5000
<FN>
(a) Prices are based on New York Stock Exchange Composite Transactions.
</FN>
</TABLE>

                                    - 45 -
<PAGE>


Corporate Information

1999 Annual Meeting
  The 1999 annual meeting of stockholders will be held on Wednesday, April 28, 
at the John C. Creasy Health Education Center, 24 Hospital Ave., Danbury, CT 
06810, beginning at 10 A.M.
  A notice of the annual meeting, a proxy statement and a proxy voting card 
will be mailed to each stockholder in March, together with a copy of this 
annual report.

General Offices
  The general offices of Union Carbide Corporation are located at 39 Old 
Ridgebury Road, Danbury, CT 06817-0001 (Telephone: 203-794-2000).

Stock Exchanges
  Union Carbide stock is traded primarily on the New York Stock Exchange 
(ticker symbol: UK). The stock is also listed on the Chicago and Pacific Stock 
Exchanges in the U.S.

Stock Records and Transfer
  The corporation acts as its own stock transfer agent through its Shareholder 
Services Department, which maintains stockholder records, transfers stock and 
answers questions regarding stockholders' accounts, including dividend 
reinvestment accounts. Stockholders wishing to transfer stock or to change the 
name on a stock certificate should contact Shareholder Services for 
assistance. The registrar is ChaseMellon Shareholder Services.

Dividend Reinvestment
  Stockholders of record may purchase shares directly through Union Carbide's 
Dividend Reinvestment and Stock Purchase Plan. Under the plan, shares may be 
purchased from Union Carbide free of commissions and service charges. 
  Requests for a prospectus that explains the plan in detail should be 
directed to the Shareholder Services Department (Telephone: 800-934-3350).

Form 10-K
  A Form 10-K report for the year ended Dec. 31, 1998, will be available in 
April 1999. A copy without exhibits may be obtained without charge by writing 
to Union Carbide Corporation, Bruce D. Fitzgerald, secretary, 39 Old Ridgebury 
Road, Danbury, CT 06817-0001.

Charitable Contributions Booklet
  Union Carbide annually publishes a booklet that lists organizations 
receiving charitable, educational, cultural or similar grants of $250 or more 
from the corporation. The booklet is available on written request to the 
secretary.

RESPONSIBLE CARE Progress Report
  This report covers health, safety and environmental progress at Union 
Carbide. Information includes performance data for U.S. and other worldwide 
locations, RESPONSIBLE CARE goals, and progress Carbide made in 1998 as it 
completed implementation of RESPONSIBLE CARE management practices. To obtain a 
copy, write to Union Carbide Corporation, Public Affairs Department, Section 
L4-505, 39 Old Ridgebury Road, Danbury, CT 06817-0001 (Telephone: 800-552-
5272).

Inquiries
- -  Inquiries from the public about Union Carbide and its products and services 
   should be directed to the Corporate Information Center, Union Carbide 
   Corporation, Section N-0, 39 Old Ridgebury Road, Danbury, CT 06817-0001 
   (Telephone: 203-794-5300).

- -  Inquiries about stockholder accounts and dividend reinvestment should be 
   directed to Union Carbide Corporation, William H. Smith, manager, 
   Shareholder Services Department, Section G1-328, 39 Old Ridgebury Road, 
   Danbury, CT 06817-0001 (Telephone: 203-794-3350).

- -  Investors, financial analysts and portfolio managers should direct 
   questions about Union Carbide to Union Carbide Corporation, D. Nicholas 
   Thold, director of investor relations, Investor Relations Department, 
   Section E4-286, 39 Old Ridgebury Road, Danbury, CT 06817-0001 (Telephone: 
   203-794-6440).

- -  Financial journalists should direct questions to Union Carbide Corporation, 
   David N. Kernis, assistant director, communications, Public Affairs 
   Department, Section L4-502, 39 Old Ridgebury Road, Danbury, CT 06817-0001 
   (Telephone: 203-794-6929).

- -  Information about Union Carbide also may be found on the company's home 
   page on the Internet at www.unioncarbide.com. Union Carbide's site provides 
   information in five categories: general, financial, business, RESPONSIBLE 
   CARE and recruitment. 

                                    - 46 -
<PAGE>


Directors and Corporate Officers

Directors

C. Fred Fetterolf 
Retired director, president and chief operating officer of Aluminum Company of 
America. A UCC director since 1987, he chairs the Health, Safety & 
Environmental Affairs (HS&EA) Committee and serves on the Audit, Compensation 
& Management Development and Nominating Committees.

Rainer E. Gut 
Chairman of Credit Suisse Group, Zurich, Switzerland, Credit Suisse First 
Boston and Credit Suisse. A UCC board member since 1994, he chairs the Finance 
and Pension Committee and is a member of the Compensation & Management 
Development and Nominating Committees.

Vernon E. Jordan, Jr. 
Senior partner of Akin, Gump, Strauss, Hauer & Feld LLP. He is chairman of the 
Nominating Committee and a member of the Executive, Finance & Pension and 
Public Policy Committees. He has been a board member since 1987.

William H. Joyce 
Chairman, president and chief executive officer of Union Carbide Corporation. 
A director since 1992, he is chairman of the Executive Committee.

Robert D. Kennedy 
Chairman of UCAR International Inc., and retired chairman and chief executive 
officer of Union Carbide Corporation. A director since 1985, he serves on the 
Audit, Executive, Nominating and Public Policy Committees.

Ronald L. Kuehn, Jr. 
Director and chairman, president and chief executive officer of Sonat, Inc. A 
UCC board member since 1984, he chairs the Compensation & Management 
Development Committee and serves on the Executive, Finance & Pension and HS&EA 
Committees.

Rozanne L. Ridgway 
Former assistant secretary of state for Europe and Canada. A director since 
1990, she chairs the Public Policy Committee and is a member of the Audit, 
HS&EA and Nominating Committees.

James M. Ringler 
Director and chairman, president and chief executive officer of Premark 
International, Inc. He has been a director since 1996 and is chairman of the 
Audit Committee and a member of the Compensation & Management Development, 
Finance & Pension and HS&EA Committees.

Paul J. Wilhelm 
President of the U.S. Steel Group of USX Corporation and a director of that 
corporation. Elected a director in 1998, he serves on the HS&EA and Public 
Policy Committees.


Corporate Officers

William H. Joyce
Chairman of the Board, President and Chief Executive Officer

Joseph S. Byck
Vice-President, Strategic Planning, Investor Relations and Public Affairs

Bruce D. Fitzgerald
Vice-President, General Counsel and Secretary

James F. Flynn
Vice-President, General Manager, Solvents, Intermediates and Monomers

Malcolm A. Kessinger
Vice-President, Human Resources

Lee P. McMaster
Vice-President, General Manager, Specialty Polymers and Products, UCAR 
Emulsion Systems

Joseph C. Soviero
Vice-President, Corporate Ventures

Roger B. Staub
Vice-President, General Manager, UNIPOL Systems

John K. Wulff
Vice-President, Chief Financial Officer and Controller


Other Senior Management

Eugene J. Boros
Vice-President, Research and Development

Ruth E. Bruch
Vice-President, Chief Information Officer

David L. Brucker
Vice-President, Engineering and Operations

Graham S. Cattell
Vice-President, Engineering

Ron J. Cottle
Vice-President, Health, Safety and Environment

R. Duane Dickson
Vice-President, General Manager, Industrial Performance Chemicals

John L. Gigerich
Vice-President, Purchasing, Information Technology and Supply Chain Management

Kevin P. Lynch
Vice-President, General Manager, UNIPOL Polymers

Philip F. McGovern
Vice-President, Tax

Daniel C. Scheid
Vice-President, General Manager, Ethylene Oxide/Glycol

Lee C. Stewart
Vice-President and Treasurer

Vince F. Villani
Vice-President, General Manager, Olefins

Donald R. Wood
Vice-President, Polypropylene Resins

John P. Yimoyines
Vice-President, General Manager, Specialty Polyolefins

                                    - 47 -
<PAGE>


Union Carbide Around the World

United States & Puerto Rico
  Alabama*              New Jersey
  California            New York*
  Colorado              North Carolina
  Connecticut           Texas*
  District of Columbia  Vermont
  Georgia               West Virginia
  Illinois*             Puerto Rico
  Louisiana*  

Canada
  Alberta*              Quebec*
  Ontario

Europe
  Austria               Russia
  Belgium               Spain
  Czech Republic        Sweden
  France*               Switzerland
  Germany*              Turkey
  Italy*                United Kingdom*
  Poland  

Latin America
  Argentina             Ecuador
  Brazil                Guatemala
  Chile                 Mexico
  Colombia              Peru
  Costa Rica            Venezuela

Far East & other
  Australia             Morocco
  China*                Philippines
  Egypt                 Singapore
  Hong Kong             South Africa
  Indonesia             South Korea*
  Japan*                Sri Lanka
  Jordan                Taiwan
  Kuwait*               Thailand
  Malaysia              United Arab Emirates

*Including joint venture locations.


Definition of Terms

Unless the context otherwise requires, the terms below refer to the following:

  Union Carbide Corporation,       Union Carbide Corporation,
  Union Carbide, Carbide,          the parent company, and its
  the corporation, we, our,        consolidated subsidiaries
  the company, UCC

  Domestic                         United States and 
                                   Puerto Rico

  Domestic operations              Operations of Union 
                                   Carbide in this area, 
                                   including exports

  International operations         Operations of Union 
                                   Carbide in areas of the world 
                                   other than the United States 
                                   and Puerto Rico

  Joint ventures                   Partnerships and corporate
                                   investments of Union 
                                   Carbide Corporation 
                                   accounted for under the   
                                   equity method of accounting

The use of these terms is for convenience of reference only. The consolidated 
subsidiaries are separate legal entities that are managed by, and accountable 
to, their respective boards of directors.


CARBITOL, CARBOWAX, CELLOSIZE, CELLOSOLVE, CYRACURE, EMKADIXOL, FLEXOL, 
FLEXOMER, NEULON, NORKOOL, LP OXO, POLYOX, POLYPHOBE, SELEXOL, TERGITOL, TONE, 
TRITON, TUFLIN, UCAR, UCARSOL, UCARTHERM, UCON, UCURE, UNICARB, UNIPOL, and 
UNION CARBIDE are trademarks of Union Carbide.

RESPONSIBLE CARE is a registered service mark of the Canadian Chemical 
Producers Association and the Chemical Manufacturers Association.

EQUATE is a trademark of EQUATE Petrochemical Company K.S.C. of Kuwait.

                                    - 48 -
<PAGE>


(Inside back cover)

Printed on Recycled, Recylable Paper.
Printed in U.S.A.

<PAGE>


(Back cover)

(The back cover depicts a hexagon containing the words "Union Carbide".)

Union Carbide Corporation
39 Old Ridgebury Road
Danbury, Connecticut 06817-0001

UC-1800

<PAGE>



                                                                    Exhibit 21

                                                                    Percentage
                                                                    of Voting
                                                      State or      Securities
                                                      Sovereign     Owned By
                                                      Power of      Immediate
Name of Company                                     Incorporation   Parent    

Union Carbide Corporation (the "Corporation")         New York         -  %

Subsidiaries included in the Consolidated Financial Statements except where 
noted otherwise:

Amerchol Corporation                                  Delaware      100.00
Benefit Capital Management Corporation                Delaware      100.00
Calidria Corporation                                  Delaware      100.00
Catalysts, Adsorbents & Process Systems, Inc.         Maryland      100.00
Dexter Realty Corporation                             Ohio          100.00
JWS Hampshire, Inc.                                   Delaware      100.00
KTI Chemicals, Inc.                                   Delaware      100.00
P.T. Union Carbide Indonesia                          Indonesia     100.00
Prentiss Glycol Company                               Delaware      100.00
Seadrift Pipeline Corporation                         Delaware      100.00
South Charleston Sewage Treatment Co.                 West Virginia 100.00
UCAR Emulsion Systems International, Inc.             Delaware      100.00
UCAR Interm, Inc.                                     Delaware      100.00
UCAR Louisiana Pipeline Company                       Delaware      100.00
UCAR Pipeline Inc.                                    Delaware      100.00
UCAR, Polimeros y Quimicos C.A.                       Ecuador       100.00
UCAR Resinas Caribe Inc.                              Delaware      100.00
UCAR Vanor (Proprietary) Limited                      South Africa  100.00
UCEX (U.K.) Limited                                   England       100.00
Umetco Minerals Corporation                           Delaware      100.00
Union Carbide Argentina S.A.I.C.S.                    Argentina     100.00
Union Carbide Asia Limited                            Hong Kong     100.00
Union Carbide Asia Pacific, Inc.                      Delaware      100.00
Union Carbide Benelux N.V.                            Belgium             (1)
Union Carbide do Brasil S/A                           Brazil        100.00
Union Carbide Caribe LLC                              Delaware      100.00
Union Carbide Canada Inc.                             Canada        100.00
Union Carbide Chemicals and Plastics 
  Technology Corporation                              Delaware      100.00
Union Carbide Chemicals (Australia) Pty. Ltd.         Australia     100.00
Union Carbide Chemicals Korea Limited                 Korea         100.00
Union Carbide Chemicals (Malaysia) Sdn. Bhd.          Malaysia      100.00
Union Carbide Comercial, C.A.                         Venezuela     100.00
Union Carbide Customer Services Pte. Ltd.             Singapore     100.00
Union Carbide Engineering and Hydrocarbons
  Service Company, Inc.                               Delaware      100.00
Union Carbide Ethylene Oxide/Glycol Company           Delaware      100.00
Union Carbide (Europe) S.A.                           Switzerland   100.00
Union Carbide Foreign Sales Corporation               US Virgin Is. 100.00
Union Carbide Formosa Co., Ltd.                       Taiwan        100.00
Union Carbide (Guangdong Zhongshan) Company Limited   Peoples .Republic 
                                                      of China       75.00

(1)	99.83% of the voting securities of Union Carbide Benelux N.V. is owned 
by Union Carbide Corporation; and 00.17% by Union Carbide (Europe) S.A.

                                                                    Percentage
                                                                    of Voting
                                                      State or      Securities
                                                      Sovereign     Owned By
                                                      Power of      Immediate
Name of Company                                     Incorporation   Parent    

Union Carbide Corporation. (Continued)

Union Carbide Imaging Systems, Inc.                   Delaware      100.00
Union Carbide Inter-America Inc.                      Delaware      100.00
Union Carbide Inter-America Inc.                      New Jersey    100.00
Union Carbide Japan K.K.                              Japan         100.00
Union Carbide Limited                                 England       100.00
Union Carbide Pan America, Inc.                       Delaware      100.00
Union Carbide Philippines (Far East) Inc.             Philippines   100.00
Union Carbide Quimica Ltda.                           Brazil        100.00
Union Carbide Quimicos y Plasticos, S.A. de C.V.      Mexico        100.00
Union Carbide South Africa (Proprietary) Limited      South Africa  100.00
Union Carbide Subsidiary C, Inc.                      Delaware      100.00
Union Carbide Subsidiary L, Inc.                      Delaware      100.00
Union Carbide Subsidiary M, Inc.                      Delaware      100.00
Union Carbide Subsidiary Y, Inc.                      Delaware      100.00
Union Carbide Subsidiary Z, Inc.                      Delaware      100.00
Union Carbide Thailand Limited                        Thailand      100.00
Union Carbide Wire & Cable Company, Inc.              Delaware      100.00
Union Polymers Sdn. Bhd.                              Malaysia       60.00
Westbridge Insurance Ltd.                             Bermuda       100.00

Companies reported in the Consolidated Financial Statements on an Equity in 
Net Assets Basis included:

Asian Acetyls                                         Rep. of Korea  33.00
Alberta & Orient Glycol Company Limited               Canada         50.00
ASPELL Polymeres SNC                                  France         50.00
Commercial Alcohols Limited                           Canada         50.00
Equate Petrochemical Company K.S.C.                   Kuwait         45.00
Nippon Unicar Company Limited                         Japan          50.00
Petromont and Company, Limited Partnership            Canada         49.95
Petromont Inc.                                        Canada         50.00
Polimeri Europa S.r.l.                                Italy          50.00
Seadrift Polypropylene Company                        Texas          50.00
Shawinigan Pipeline Reg'd.                            Canada         50.00
Union Carbide Lanka Limited                           Sri Lanka      49.00
UOP LLC                                               New York       50.00
Univation Technology, LLC                             Delaware       50.00
Union Showa K.K.                                      Japan          50.00
World Ethanol Company                                 Illinois       50.00

                            * * * * * * * * * * * *

The names of the Corporation's other consolidated subsidiaries and companies 
carried on an equity in net assets basis are not listed.  These subsidiaries 
and companies, if considered in the aggregate as a single subsidiary, would 
not constitute a significant subsidiary.  In addition, the Corporation has 
investments in other subsidiaries and 20-to-50%-owned companies for which 
financial statements are not submitted because all such subsidiaries and 
companies, considered in the aggregate as a single subsidiary, would not 
constitute a significant subsidiary.


                                                  EXHIBIT 23








                        CONSENT OF INDEPENDENT AUDITORS




The Board of Directors
Union Carbide Corporation



We consent to the incorporation by reference in each of the Registration 
Statements of Union Carbide Corporation on Form S-3 (Nos. 33-26185, 33-60705 
333-17309 and 333-59635), and on Form S-8 (Nos. 2-90419, 33-22125, 33-38714, 
33-53573, 33-58931, 333-02829, 333-38493, 333-38495 and 333-74079) of our
reports dated January 22, 1999, relating to the consolidated balance sheets
of Union Carbide Corporation and subsidiaries as of December 31, 1998 and 1997,
and the related consolidated statements of income, stockholders' equity and
cash flows and related schedule for each of the years in the three-year period 
ended December 31, 1998, appearing and incorporated by reference in the Annual
Report on Form 10-K of Union Carbide Corporation for the year ended 
December 31, 1998.






                                                    KPMG LLP



Stamford, Connecticut
March 25, 1999



<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM UNION
CARBIDE CORPORATION'S ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED DECEMBER 31,
1998, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<CIK> 0000100790
<NAME> UNION CARBIDE CORPORATION
<MULTIPLIER> 1,000,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                              49
<SECURITIES>                                         0
<RECEIVABLES>                                      933
<ALLOWANCES>                                         0
<INVENTORY>                                        667
<CURRENT-ASSETS>                                  1906
<PP&E>                                            8409
<DEPRECIATION>                                    4228
<TOTAL-ASSETS>                                    7291
<CURRENT-LIABILITIES>                             1470
<BONDS>                                           1796
                                0
                                          0
<COMMON>                                           155
<OTHER-SE>                                        2294
<TOTAL-LIABILITY-AND-EQUITY>                      7291
<SALES>                                           5659
<TOTAL-REVENUES>                                  5659
<CGS>                                             4294
<TOTAL-COSTS>                                     4294
<OTHER-EXPENSES>                                   532<F1>
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 114
<INCOME-PRETAX>                                    689
<INCOME-TAX>                                       217
<INCOME-CONTINUING>                                403
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       403
<EPS-PRIMARY>                                     2.98<F2>
<EPS-DILUTED>                                     2.91<F2>
<FN>
<F1>Other expenses are equal to Research and development of 143 and Depreciation
    and amortization of 389.
<F2>The EPS-PRIMARY amount represents Basic earnings per share and the EPS-DILUTED
    amount represents Diluted earnings per share, computed in accordance with
    Statement of Financial Accounting Standards No. 128, "Earnings Per Share."
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains restated summary financial information extracted from
Union Carbide Corporation's Annual Report on Form 10-K for the years ended
December 31, 1997 and December 31, 1996, and is qualified in its entirety by
reference to such financial statements.
</LEGEND>
<RESTATED> 
<CIK> 0000100790
<NAME> UNION CARBIDE CORPORATION
<MULTIPLIER> 1,000,000
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1996
<PERIOD-START>                             JAN-01-1997             JAN-01-1996
<PERIOD-END>                               DEC-31-1997             DEC-31-1996
<CASH>                                              20                      57
<SECURITIES>                                         0                       0
<RECEIVABLES>                                      993                    1047
<ALLOWANCES>                                         0                       0
<INVENTORY>                                        604                     541
<CURRENT-ASSETS>                                  1866                    1873
<PP&E>                                            7707                    7159
<DEPRECIATION>                                    3927                    3750
<TOTAL-ASSETS>                                    6964                    6546
<CURRENT-LIABILITIES>                             1504                    1278
<BONDS>                                           1458                    1487
                                0                     144
                                          0                       0
<COMMON>                                           155                     155
<OTHER-SE>                                        2193                    1959
<TOTAL-LIABILITY-AND-EQUITY>                      6964                    6546
<SALES>                                           6502                    6106
<TOTAL-REVENUES>                                  6502                    6106
<CGS>                                             4806                    4568
<TOTAL-COSTS>                                     4806                    4568
<OTHER-EXPENSES>                                   497<F1>                 471<F1>
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                  79                      76
<INCOME-PRETAX>                                    966                     845
<INCOME-TAX>                                       279                     236
<INCOME-CONTINUING>                                676                     593
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                           17                       0
<NET-INCOME>                                       659                     593
<EPS-PRIMARY>                                     4.89<F2>                4.43<F2>
<EPS-DILUTED>                                     4.41<F2>                3.90<F2>
<FN>
<F1>Other expenses in 1997 are equal to research and development of 157 and
    depreciation and amortization of 340.  Other expenses in 1996 are equal to 
    research and development of 159 and depreciation and amortization of 312.
<F2>The EPS-PRIMARY amount represents basic earnings per share and the EPS-DILUTED
    amount represents diluted earnings per share, computed in accordance with
    Statement of Financial Accounting Standards No. 128 "Earnings Per Share."
</FN>
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains restated summary financial information extracted from
Union Carbide Corporation's Quarterly Reports on Form 10-Q for the three months
ended March 31, 1997, the six months ended June 30, 1997 and the nine months
ended September 30, 1997, and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<RESTATED> 
<CIK> 0000100790
<NAME> UNION CARBIDE CORPORATION
<MULTIPLIER> 1,000,000
       
<S>                             <C>                     <C>                  <C>
<PERIOD-TYPE>                   3-MOS                    6-MOS               9-MOS
<FISCAL-YEAR-END>                     DEC-31-1997         DEC-31-1997        DEC-31-1997
<PERIOD-START>                        JAN-01-1997         JAN-01-1997        JAN-01-1997
<PERIOD-END>                          MAR-31-1997         JUN-30-1997        SEP-30-1997
<CASH>                                        175                  72                 86
<SECURITIES>                                    0                   0                  0
<RECEIVABLES>                                1082                1079               1064
<ALLOWANCES>                                    0                   0                  0
<INVENTORY>                                   553                 544                556
<CURRENT-ASSETS>                             2028                1923               1954
<PP&E>                                       7274                7424               7577
<DEPRECIATION>                               3809                3855               3886
<TOTAL-ASSETS>                               6795                6770               6975
<CURRENT-LIABILITIES>                        1221                1131               1306
<BONDS>                                      1494                1467               1459
                         140                 140                138
                                     0                   0                  0
<COMMON>                                      155                 155                155
<OTHER-SE>                                   1972                2053               2063
<TOTAL-LIABILITY-AND-EQUITY>                 6795                6770               6975
<SALES>                                      1638                3304               4963
<TOTAL-REVENUES>                             1638                3304               4963
<CGS>                                        1231                2451               3650
<TOTAL-COSTS>                                1231                2451               3650
<OTHER-EXPENSES>                              122<F1>             250<F1>            374<F1>
<LOSS-PROVISION>                                0                   0                  0
<INTEREST-EXPENSE>                             19                  38                 57
<INCOME-PRETAX>                               228                 500                772
<INCOME-TAX>                                   66                 145                228
<INCOME-CONTINUING>                           157                 348                529
<DISCONTINUED>                                  0                   0                  0
<EXTRAORDINARY>                                 0                   0                  0
<CHANGES>                                       0                   0                  0
<NET-INCOME>                                  157                 348                529
<EPS-PRIMARY>                                1.17<F2>            2.63<F2>           3.97<F2>
<EPS-DILUTED>                                1.03<F2>            2.31<F2>           3.49<F2>
<FN>
<F1>Other expenses for the three months ended March 31, 1997 are equal to research
    and development of 40 and depreciation and amortization of 82.  Other expenses
    for the six months ended June 30, 1997 are equal to research and development  of
    81 and depreciation and amortization of 169.  Other expenses for the nine
    months ended September 30, 1997 are equal to research and development of 118
    and depreciation and amortization of 256.
<F2>The EPS-PRIMARY amount represents basic earnings per share and the EPS-DILUTED
    amount represents deiluted earnings per share, computed in accordance with
    Statement of Financial Accounting Standards No. 128 "Earnings Per Share."
</FN>
        

</TABLE>


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission