Exhibit 10.2b ------------- EMPIRE MINERALS CORP. September 5, 2007 Mr. Wenqin Zhang Diying (Tianjin) Mining Science and Technology Development, Co., Ltd. 4, 8th Road Dazhigu, Hedong District Tianjin, China 300170 Dear Mr. Zhang: This letter serves as...

                                                                   Exhibit 10.2b
                                                                   -------------


                             EMPIRE MINERALS CORP.




September 5, 2007

Xx. Xxxxxx Xxxxx
Diying (Tianjin) Mining Science and Technology Development, Co., Ltd.
0, 0xx Xxxx
Xxxxxxx, Xxxxxx Xxxxxxxx
Tianjin, China 300170

Dear Xx. Xxxxx:

This letter serves as an amendment to our Joint Venture Agreement ("Agreement"),
dated November 21, 2006, between Empire Minerals Corp ("Company") and Diying
(Tianjin) Mining Science and Technology Development Co. ("Diying").

As of today, the capital contribution of Diying, which is in the form of
transfers of mineral resources exploration licenses into the Joint Venture, has
not been completed. The Company is hereby granting Diying with an extension to
complete the transfer of the licenses until October 15, 2007.

Sincerely,


/s/ Diego X. Xxxx
Diego X. Xxxx
Chief Financial Officer

DER/der