EXHIBIT 10.8 December 15, 1997 Mr. David H. Watkins Senior Vice President, Exploration Cyprus Amax Minerals Company 9100 East Mineral Circle Englewood, CO 80112 RE: AMENDMENT TO EXPLORATION JOINT VENTURE AGREEMENT DATED AS OF JANUARY 1, 1994 AMONG CYPRUS AMAX MINERALS COMPANY, CYPRUS EXPLORATION AND DEVELOPMENT CORPORATION, AMAX GOLD INC. AND AMAX GOLD EXPLORATION, INC. (THE "AGREEMENT") -------------------------------------------------------------------------- Dear David: Please accept this letter on behalf of Amax Gold Inc. and Amax Gold Exploration, Inc. as evidence of our mutual agreement to extend the above referenced Agreement pursuant to Section 12.1 of such Agreement for a period of one year, from December 31, 1997 to December 31, 1998. Please confirm the agreement of Cyprus Amax Minerals Company and Cyprus Exploration and Development Corporation to such extension by executing this letter below and returning one original to me. Very truly yours, S. Scott Shellhaas President and Chief Operating Officer, Amax Gold Inc. and Senior Vice President, Amax Gold Exploration, Inc. Mr. David Watkins December 15, 1997 Page 2 Agreed and accepted this _____ day of December, 1997: CYPRUS AMAX MINERALS COMPANY and CYPRUS EXPLORATION AND DEVELOPMENT CORPORATION _______________________________________ David H. Watkins Senior Vice President, Exploration, Cyprus Amax Minerals Company and President, Cyprus Exploration and Development Corporation cc: Deborah J. Friedman, Amax Gold Inc. Philip C. Wolf, Cyprus Amax Minerals Company