JOINT FILING AGREEMENT
Exhibit
99.1
The undersigned hereby agree that the
Statement on Schedule 13G dated December 14, 2009 with respect to the shares of
Common Stock, par value $0.01 per share, of Beacon Power Corporation and any
further amendments thereto executed by each and any of the undersigned shall be
filed on behalf of each of the undersigned pursuant to and in accordance with
the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as
amended.
Dated: December
14, 2009
|
RCG
PB, LTD
By:
Ramius Advisors, LLC,
its investment advisor RAMIUS
ENTERPRISE MASTER FUND LTD
By:
Ramius Advisors, LLC,
its investment advisor RCG
HOLDINGS LLC
By:
C4S & Co., L.L.C.,
its managing member |
RAMIUS
ADVISORS, LLC
By:
Ramius LLC,
its
sole member
By:
Xxxxx Group, Inc.,
its sole member XXXXX
GROUP, INC.
C4S
& CO., L.L.C.
|
|
By:
|
/s/
Xxxxxxx X. Xxxxxxx
|
|
|
Name:
|
Xxxxxxx
X. Xxxxxxx
|
|
|
Title:
|
Authorized
Signatory
|
|
|
/s/
Xxxxxxx X. Xxxxxxx
|
|
|
XXXXXXX
X. XXXXXXX
|
|
|
Individually
and as attorney-in-fact for Xxxxx X. Xxxxx, Xxxxxx X. Xxxxx and Xxxxxx X.
Xxxxxxx
|
