Freeport-McMoRan Copper & Gold Inc.
I, Douglas N. Currault II, Assistant Secretary of Freeport-McMoRan Copper & Gold Inc. (the
“Corporation”), a corporation organized and existing under the laws of the State of Delaware, do hereby certify
that the following resolution was duly adopted by the Board of Directors of the Corporation at a meeting held on
December 13, 1988, and that such resolution has not been amended, modified or rescinded and is in full force
and effect on the date hereof:
RESOLVED, That any report, registration statement or other form filed on behalf of this
corporation pursuant to the Securities Exchange Act of 1934, or any amendment to such report,
registration statement or other form, may be signed on behalf of any director or officer of this
corporation pursuant to a power of attorney executed by such director or officer.
IN WITNESS WHEREOF, I have hereunto signed my name and affixed the seal of the Corporation on
March 4, 2004.
/s/ Douglas N. Currault II
Douglas N. Currault II