Exhibit 1
JOINT FILING AGREEMENT
This will confirm the agreement by and among all the undersigned that
the Schedule 13G filed on or about this date and any amendments thereto with
respect to the beneficial ownership by the undersigned of shares of common
stock, $0.001 par value per share, of A123 Systems, Inc. is being filed on
behalf of each of the undersigned in accordance with Rule 13d-1(k)(1). This
agreement may be executed in two or more counterparts, each of which shall be
deemed an original, but all of which together shall constitute one and the same
instrument.
Dated: February 16, 2010
GE CAPITAL EQUITY INVESTMENTS, INC.
By: /s/ Xxxxxxx X. Xxxxxx
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Name: Xxxxxxx X. Xxxxxx
Title: Sr. Managing Director
GE CAPITAL CFE, INC.
By: /s/ Xxxxxxx X. Xxxxxx
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Name: Xxxxxxx X. Xxxxxx
Title: Senior Vice President
GPSF SECURITIES, INC.
By: /s/ Xxxxxxx X. Xxxxxx
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Name: Xxxxxxx X. Xxxxxx
Title: Vice President
XXXXXX FINANCIAL LEASING, INC.
By: /s/ Xxxxxxx X. Xxxxxx
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Name: Xxxxxxx X. Xxxxxx
Title: Authorized Signatory
GENERAL ELECTRIC CAPITAL CORPORATION
By: /s/ Xxxxxxx X. Xxxx
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Name: Xxxxxxx X. Xxxx
Title: Attorney-in-Fact
GENERAL ELECTRIC CAPITAL SERVICES, INC.
By: /s/ Xxxxxxx X. Xxxx
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Name: Xxxxxxx X. Xxxx
Title: Attorney-in-Fact
GENERAL ELECTRIC COMPANY
By: /s/ Xxxxxxx X. Xxxx
-----------------------------------------
Name: Xxxxxxx X. Xxxx
Title: Attorney-in-Fact
