January 10, 2007 To the Board of Directors of Taliera Corporation Gentlemen:

Exhibit 10.21

January 10, 2007

To the Board of Directors of
Taliera Corporation

Gentlemen:

        The undersigned previously subscribed for and agreed to purchase 1,000,000 Warrants ("Insider Warrants") at $1.20 per Insider Warrant, of Taliera Corporation (the "Corporation") for an aggregate purchase price of $1,200,000 ("Purchase Price"), pursuant to terms set forth in Letter Agreements dated July 28, 2006 and December 7, 2006 (the "Letter Agreement"). This agreement amends the Letter Agreement to provide for the undersigned's agreement to purchase an additional 416,667 Insider Warrants in accordance with the same terms in the Letter Agreement.

        The undersigned hereby agrees to purchase an additional 416,667 Insider Warrants at $1.20 per Insider Warrant, for and aggregate purchase price of $500,000 all in accordance with the terms of the Letter Agreement. In all other respects, the terms of the Letter Agreement remain in full force and effect.

				Very truly yours,
				TALIERA HOLDINGS, LLC
				By:		/s/ X. XXXXX XXXXXX
						X. Xxxxx Xxxxxx, CEO
Agreed
TALIERA CORPORATION
By:		/s/ X. XXXXX XXXXXX
		X. Xxxxx Xxxxxx, CEO
XXXXXX XXXXXX & CO. INC.
By:		/s/ XXXXXXX XXXXXX
		Name:  Xxxxxxx Xxxxxx
		Title:  Managing Director