CONSOLIDATED FINANCIAL STATEMENTS

Basis of Presentation

The unaudited interim consolidated financial statements of Union Carbide Corporation and its subsidiaries (the "Corporation" or "UCC") were prepared in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") and reflect all adjustments (including normal recurring accruals) which, in the opinion of management, are considered necessary for the fair presentation of the results for the periods presented. These statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2017.

The Corporation is a wholly owned subsidiary of The Dow Chemical Company ("Dow"). In accordance with the accounting guidance for earnings per share, the presentation of earnings per share is not required in financial statements of wholly owned subsidiaries.

The Corporation’s business activities comprise components of Dow’s global operations rather than stand-alone operations. Dow conducts its worldwide operations through principal product groups. Because there are no separable reportable business segments for UCC under the accounting guidance related to segment reporting and no detailed business information is provided to a chief operating decision maker regarding the Corporation’s stand-alone operations, the Corporation’s results are reported as a single operating segment.

Effective August 31, 2017, pursuant to the merger of equals transaction contemplated by the Agreement and Plan of Merger, dated as of December 11, 2015, as amended on March 31, 2017, Dow and E. I. du Pont de Nemours and Company ("DuPont") each merged with subsidiaries of DowDuPont Inc. ("DowDuPont") and, as a result, Dow and DuPont became subsidiaries of DowDuPont (the "Merger"). Following the Merger, Dow and DuPont intend to pursue, subject to approval by the board of directors of DowDuPont, the separation of the combined company's agriculture business, specialty products business and materials science business through one or more tax-efficient transactions.

Intercompany transactions and balances are eliminated in consolidation. Transactions with the Corporation’s parent company, Dow, and other subsidiaries of Dow and DowDuPont, have been reflected as related company transactions in the consolidated financial statements. See Note 12 for additional information.

Significant Accounting Policy Updates

In the first quarter of 2018, the Corporation adopted Accounting Standards Update ("ASU") 2014-09, "Revenue from Contracts with Customers (Topic 606)" and the associated ASUs (collectively, "Topic 606"). See Notes 2 and 3 for additional information. The Corporation's significant accounting policy for Revenue was updated as a result of the adoption of Topic 606:

Revenue

Substantially all of the Corporation's revenues are generated by sales to Dow. Revenue for product sales to related companies is recognized when the related company obtains control of the product, which occurs either at the time that production is complete or shipped free on board ("FOB") from UCC's manufacturing facility, in accordance with the sales agreement between the Corporation and Dow.

The Corporation recognizes revenue for product sales to trade customers when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the Corporation expects to receive in exchange for those goods or services. To determine revenue recognition for the arrangements that the Corporation determines are within the scope of Topic 606, the Corporation performs the following five steps: (1) identify the contract(s) with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when (or as) the entity satisfies a performance obligation.

Changes in Financial Statement Presentation

Consolidated Statements of Income

In the first quarter of 2018, the Corporation adopted ASU 2017-07, "Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost," which required retrospective application for the reclassification of net periodic benefit costs, other than the service cost component, from "Cost of sales" to "Sundry income (expense) - net." See Note 2 for additional information.

The changes to the consolidated statements of income as a result of the retrospective adoption of ASU 2017-07 are summarized below:



Summary of Changes to the Consolidated Statements of Income	Three Months Ended Sep 30, 2017						Nine Months Ended Sep 30, 2017
In millions	As Filed			Updated			As Filed		Updated
Cost of sales	$	991		$	994		$	3,056	$	3,061
Sundry income (expense) - net	$	(8	)	$	(5	)	$	6	$	11

Consolidated Statements of Equity

In the second quarter of 2018, the Corporation adopted ASU 2018-02, "Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which resulted in a $254 million increase to retained earnings due to the reclassification from accumulated other comprehensive loss for the effect of the federal corporate income tax rate change as a result of the Tax Cuts and Jobs Act of 2017 ("The Act") on the Corporation's pension plans. This reclassification is reflected in the "Adoption of accounting standard" line in the consolidated statements of equity. The Corporation's significant accounting policy for Income Taxes was updated as a result of the adoption of ASU 2018-02 to indicate the Corporation uses the portfolio approach for releasing income tax effects from accumulated other comprehensive loss. See Note 2 for additional information.