DuPont 2012 Annual Report Download - page 51

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
To the Stockholders and the Board of Directors of
E. I. du Pont de Nemours and Company:
In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of income, comprehensive income, equity and cash
flows present fairly, in all material respects, the financial position of E. I. du Pont de Nemours and Company and its subsidiaries at December 31, 2012 and
2011, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 2012 in conformity with accounting
principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedule listed in the index appearing under
Item 15(a) (2) presents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial
statements. Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2012,
based on criteria established in Internal Control – Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway
Commission (COSO). The Company's management is responsible for these financial statements and financial statement schedule, for maintaining effective
internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in "Management's
Report on Internal Control over Financial Reporting" appearing on page F-2. Our responsibility is to express opinions on these financial statements, on the
financial statement schedule and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits in
accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the
audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over
financial reporting was maintained in all material respects. Our audits of the financial statements included examining, on a test basis, evidence supporting the
amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating
the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over
financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control
based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe our audits
provide a reasonable basis for our opinions.
A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and
the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over
financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect
the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit
preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being
made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or
timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.
PricewaterhouseCoopers LLP
Philadelphia, Pennsylvania
February 6, 2013
F-3