Summary of Significant Accounting Policies

3 Months Ended

Mar. 29, 2014

Summary of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations Entegris, Inc. (Entegris or the Company) is a leading provider of a wide range of products for purifying, protecting and transporting critical materials used in processing and manufacturing in the microelectronics and other high-technology industries.

Principles of Consolidation The condensed consolidated financial statements include the accounts of the Company and its majority-owned subsidiaries. Intercompany profits, transactions and balances have been eliminated in consolidation.

Use of Estimates The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, particularly receivables, inventories, property, plant and equipment, and intangibles, accrued expenses and income taxes and related accounts, and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States.

The condensed consolidated financial statements and notes are presented as permitted by Form 10-Q and do not contain certain information included in the Company’s annual consolidated financial statements and notes. The information included in this Form 10-Q should be read in conjunction with Management’s Discussion and Analysis and consolidated financial statements and notes thereto included in the Company’s Form 10-K for the year ended December 31, 2013. The results of operations for the three months ended March 29, 2014 are not necessarily indicative of the results to be expected for the full year.

Fair Value of Financial Instruments The carrying value of accounts receivable and accounts payable approximates fair value due to the short maturity of those instruments.

Recent Accounting Pronouncements

The Company did not adopt any accounting pronouncements during the period ended March 29, 2014.

Other Accounting Standards Updates issued not effective for the Company until after March 29, 2014 are not expected to have a material effect on the Company’s condensed consolidated financial statements.