JOINT FILING AGREEMENTJoint Filing Agreement • December 17th, 2007 • Al Yousuf LLC • Miscellaneous chemical products
Contract Type FiledDecember 17th, 2007 Company IndustryThe persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the common stock of Altair Nanotechnologies Inc. and further agree that this Joint Filing Agreement be included as an exhibit to such joint filings. In evidence thereof, the undersigned, being duly authorized, have executed this Joint Filing Agreement this 16th day of December, 2007.