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EXHIBIT C
JOINT FILING AGREEMENT
The undersigned hereby agree that the statement on Schedule 13G with respect to
the Common Stock of American Superconductor Corp. dated as of June 30, 1998 is,
and any amendments thereto (including amendments on Schedule 13D) signed by each
of the undersigned shall be, filed on behalf of each of us pursuant to and in
accordance with the provisions of Rule 13d-1(f) under the Securities Exchange
Act of 1934.
Date: June 30, 1998 XXXXX FUND MANAGEMENT LLC
By: /S/ XXXXXXX X. XXXX
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Xxxxxxx X. Xxxx
Assistant General Counsel
Date: June 30, 1998 XXXXXX XXXXX
By: /S/ XXXXXXX X. XXXX
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Xxxxxxx X. Xxxx
Attorney-in-Fact
Date: June 30, 1998 XXXXXXX X. XXXXXXXXXXXXX
By: /S/ XXXXXXX X. XXXX
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Xxxxxxx X. Xxxx
Attorney-in-Fact
Date: June 30, 1998 DUQUESNE CAPITAL MANAGEMENT, L.L.C.
By: /S/ XXXXXX XXXXXX
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Xxxxxx Xxxxxx
Managing Director