EXHIBIT A JOINT FILING AGREEMENT
| CUSIP No.: 000000000 | Page 9 of 10 Pages |
EXHIBIT A
The undersigned hereby agree that the statement on Schedule 13G with respect to the Common
Stock, par value $0.01 per share, of Nord Resources Corporation dated as of October 12, 2007, is,
and any amendments thereto (including amendments on Schedule 13D) signed by each 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) under the Securities Exchange Act of 1934.
Date: October 12, 2007
| XXXXX X. XXXXX |
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| By: | /s/ Xxxxx X. Xxxx | |||
| Name: | Xxxxx X. Xxxx | |||
| Title: | Attorney-in-Fact | |||
| XXXXX CAPITAL MANAGEMENT, LLC |
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| By: | /s/ Xxxxx X. Xxxx | |||
| Name: | Xxxxx X. Xxxx | |||
| Title: | Vice President | |||
