Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Registration Statement on Form S-1 of KiOR, Inc. of our report dated March 21, 2011 relating to the financial statements of KiOR, Inc. and its subsidiaries (a development stage enterprise), which appears in such Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Houston, Texas
April 11, 2011