EXHIBIT 4

JOINT FILING AGREEMENT

Pursuant to Rule 13d-1(k)(1)

The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint acquisition statements.  The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning him contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the other, except to the extent that he knows or has reason to believe that such information is inaccurate.

Dated: December 12, 2008
	ROBERT ROSS MCEWEN
	By:	/s/ Robert Ross McEwen
	Name:   Robert Ross McEwen
	2190303 ONTARIO INC.
	By:	/s/ Robert Ross McEwen
	Name:   Robert Ross McEwen
	Title:     Director, President and Vice President,
	2190303 Ontario Inc., an Ontario corporation