Basis of Presentation and Summary of Significant Accounting and Financial Reporting Policies

W. R. Grace & Co., through its subsidiaries, is engaged in specialty chemicals and specialty materials businesses on a global basis through three operating segments: Grace Catalysts Technologies, which includes catalysts and related products used in refining, petrochemical and other chemical manufacturing applications; Grace Materials Technologies, which includes packaging technologies and engineered materials used in consumer, industrial, coatings, and pharmaceutical applications; and Grace Construction Products, which includes specialty construction chemicals and specialty building materials used in commercial, infrastructure and residential construction.

W. R. Grace & Co. conducts substantially all of its business through a direct, wholly owned subsidiary, W. R. Grace & Co.-Conn. ("Grace-Conn."). Grace-Conn. owns substantially all of the assets, properties and rights of W. R. Grace & Co. on a consolidated basis, either directly or through subsidiaries.

As used in these notes, the term "Company" refers to W. R. Grace & Co. The term "Grace" refers to the Company and/or one or more of its subsidiaries and, in certain cases, their respective predecessors.

Voluntary Bankruptcy Filing During 2000 and the first quarter of 2001, Grace experienced several adverse developments in its asbestos-related litigation, including: a significant increase in personal injury claims, higher than expected costs to resolve personal injury and certain property damage claims, and class action lawsuits alleging damages from ZONOLITE® Attic Insulation ("ZAI"), a former Grace attic insulation product.

After a thorough review of these developments, Grace's Board of Directors concluded that a federal court-supervised bankruptcy process provided the best forum available to achieve fairness in resolving these claims and on April 2, 2001 (the "Filing Date"), Grace and 61 of its United States subsidiaries and affiliates, (collectively, the "Debtors"), filed voluntary petitions for reorganization (the "Filing") under Chapter 11 of the United States Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware (the "Bankruptcy Court"). The cases were consolidated and are being jointly administered under case number 01-01139 (the "Chapter 11 Cases"). Grace's non-U.S. subsidiaries and certain of its U.S. subsidiaries were not included in the Filing.

Under Chapter 11, the Debtors have continued to operate their businesses as debtors-in-possession under court protection from creditors and claimants, while using the Chapter 11 process to develop and implement a plan for addressing the asbestos-related claims. Since the Filing, all motions necessary to conduct normal business activities have been approved by the Bankruptcy Court. (See Note 2 for Chapter 11 Information.)

Basis of Presentation The interim Consolidated Financial Statements presented herein are unaudited and should be read in conjunction with the Consolidated Financial Statements presented in the Company's 2012 Annual Report on Form 10-K. Such interim Consolidated Financial Statements reflect all adjustments that, in the opinion of management, are necessary for a fair statement of the results of the interim periods presented; all such adjustments are of a normal recurring nature except for the impacts of adopting new accounting standards as discussed below. All significant intercompany accounts and transactions have been eliminated.

The results of operations for the six-month interim period ended June 30, 2013, are not necessarily indicative of the results of operations for the year ending December 31, 2013.

Reclassifications and Revisions Certain amounts in prior years' Consolidated Financial Statements have been reclassified to conform to the current year presentation. Such reclassifications have not materially affected previously reported amounts in the Consolidated Financial Statements.

Certain prior period amounts have been revised to correct the previous classification. Cash payments associated with capital expenditures of $4.6 million for the period ended June 30, 2012, previously classified as operating activities in the Statements of Cash Flows have been revised to investing activities. In addition, cash payments associated with capital expenditures of $9.6 million for the period ended September 30, 2012, previously classified as operating activities in the Statements of Cash Flows will be revised to investing activities.

Grace concluded that these revisions were not material to the prior-year Consolidated Financial Statements.

Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles (U.S. GAAP) requires management to make estimates and assumptions that affect the reported amount of assets and liabilities and disclosure of contingent assets and liabilities at the date of the Consolidated Financial Statements, and the reported amounts of revenues and expenses for the periods presented. Actual amounts could differ from those estimates, and the differences could be material. Changes in estimates are recorded in the period identified. Grace's accounting measurements that are most affected by management's estimates of future events are:


•	Contingent liabilities, which depend on an assessment of the probability of loss and an estimate of ultimate resolution cost, such as asbestos-related matters and litigation (see Notes 2 and 3), income taxes (see Note 7), and environmental remediation (see Note 10);


•	Pension and postretirement liabilities that depend on assumptions regarding participant life spans, future inflation, discount rates and total returns on invested funds (see Note 8);


•	Realization values of net deferred tax assets and insurance receivables, which depend on projections of future income and cash flows and assessments of insurance coverage and insurer solvency; and

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Recoverability of goodwill, which depends on assumptions used to value reporting units, such as observable market inputs, projections of future cash flows and weighted average cost of capital. The Grace Construction Products (GCP) Europe reporting unit continues to operate in a challenging environment. While the fair value of this reporting unit exceeded the carrying value at its last testing date and management does not believe that impairment is probable, the business must continue to improve its performance in future periods, consistent with expectations, to sustain the goodwill carrying value.

The accuracy of management's estimates may be materially affected by the uncertainties arising under Grace's Chapter 11 proceeding.

Currency Translation On February 8, 2013, the Venezuelan government announced that, effective February 13, 2013, the official exchange rate of the bolivar to U.S. dollar would devalue from 4.3 to 6.3. As a result of this currency devaluation, Grace incurred a charge to net income of $8.5 million in the 2013 first quarter. Of this amount, $1.6 million is included in segment operating income.

Short-Term Investments On April 1, 2013, Grace invested $500.0 million in a series of short-term cash investments with a major financial institution. The investments will be liquidated prior to Grace's emergence from bankruptcy and the proceeds are expected to be used to pay a portion of Grace's liabilities subject to compromise.

Effect of New Accounting Standards In June 2011, the FASB issued ASU 2011-05 "Presentation of Comprehensive Income". This update is intended to improve the comparability, consistency, and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income. The new disclosure requirements are effective for fiscal years beginning after December 15, 2011, and for interim periods within those fiscal years, with early adoption permitted. In December 2011, the FASB issued ASU 2011-12 "Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05". This update defers certain paragraphs of ASU 2011-05 pertaining to reclassification adjustments out of accumulated other comprehensive income. This deferral is effective for fiscal years beginning after December 15, 2011, and for interim periods within those fiscal years, with early adoption permitted. Grace continues to report its Consolidated Statement of Other Comprehensive Income as a separate financial statement, immediately following the Consolidated Statement of Operations to comply with the updates that have not been deferred. In February 2013, the FASB issued ASU 2013-02 "Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income", which further clarifies these disclosure requirements. This update is effective for fiscal years beginning after December 15, 2012, and for interim periods within those fiscal years, with early adoption permitted. Grace adopted this update in the 2013 first quarter and it did not have a material effect on the Consolidated Financial Statements.

In December 2011, the FASB issued ASU 2011-11 "Disclosures about Offsetting Assets and Liabilities". This update is intended to improve the comparability of statements of financial position prepared in accordance with U.S. GAAP and IFRS, requiring both gross and net information about offsetting assets and liabilities. The new requirements are effective for fiscal years beginning on or after January 1, 2013, and for interim periods within those fiscal years. In January 2013, the FASB issued ASU 2013-01 "Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities", which clarifies these disclosure requirements. These standards are effective for fiscal years beginning on or after January 1, 2013, and for interim periods within those fiscal years. Grace adopted these standards for the 2013 first quarter and they did not have a material effect on the Consolidated Financial Statements.