CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Trustees and Shareholders of

Oppenheimer Developing Markets Fund:

We consent to the use of our report dated October 12, 2015, with respect to the financial statements and financial highlights of Oppenheimer Developing Markets Fund as of August 31, 2015, incorporated by reference herein, and to the references to our firm under the headings “Financial Highlights” in the Prospectus, and “Independent Registered Public Accounting Firm” and “Financial Statements” in the Statement of Additional Information.

/s/ KPMG LLP

KPMG LLP

Denver, Colorado

October 23, 2015