Exhibit 99.18

Roscoe Postle Associates Inc.

Suite 388, 1130 West Pender Street, Vancouver, BC  V6E 4A4

T (604) 602-6767 F (604) 602-0235

www.rpacan.com

CONSENT OF R. DENNIS BERGEN

I consent to the inclusion in this annual report on Form 40-F of New Gold Inc., which is being filed with the United States Securities and Exchange Commission, of references to my name in connection with, and to the use of information derived from, the technical report entitled “Technical Report on the New Afton Project, British Columbia, Canada” dated December 31, 2009, included in the Annual Information Form of New Gold Inc. for the financial year ended December 31, 2011, and I consent to the incorporation by reference of such information in the registration statement on Form S-8 (File No. 333-160500) of New Gold Inc.

Dated this 26th day of March, 2012

(Signed) “R. Dennis Bergen”

Name:        R. Dennis Bergen

Title:         P. Eng. and Associate Principal Mining Engineer

for Roscoe Postle Associates Inc.