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Report of Independent Registered Public Accounting Firm
The Board of Directors and Stockholders
Green Plains Renewable Energy, Inc.:
We have audited Green Plains Renewable Energy, Inc. and subsidiaries (the Company) internal control over financial
reporting as of December 31, 2011, 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 maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal
control over financial reporting, included in the accompanying Management’s Annual Report on Internal Control Over
Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting
based on our audit.
We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United
States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective
internal control over financial reporting was maintained in all material respects. Our audit 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 audit also included
performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a
reasonable basis for our opinion.
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 (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and
dispositions of the assets of the company; (2) 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 (3) 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.
In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of
December 31, 2011, based on criteria established in
Internal Control – Integrated Framework
issued by the Committee of
Sponsoring Organizations of the Treadway Commission.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States),
the consolidated balance sheets of the Company as of December 31, 2011 and 2010, and the related consolidated statements
of operations, stockholders’ equity and comprehensive income (loss), and cash flows for each of the years in the three-year
period ended December 31, 2011, and our report dated February 17, 2012 expressed an unqualified opinion on those
consolidated financial statements and related financial statement schedule.
/s/ KPMG LLP
Omaha, NE
February 17, 2012
Item 9B. Other Information.
None.