Modification No. 4 Rosemont Copper Company MOU

11/14/2009

FS Agreement No. 08-MU-11030510-010

MODIFICATION NO. 04

to

AGREEMENT NO. 08-MU-11030510-010

between

USDA fOREST SERVICE,
CORONADO NATIONAL FOREST

and

ROSEMONT COPPER COMPANY

1. Purpose of the Modification:  The purpose of this modification is to update Attachment 2, EIS Timeline dated September 25, 2008.
2. Change in Performance Period:  None.
3. Change in Funds Abailable:  Not applicable.

This modification is issued pursuant to Clause No. F. 15 and Attactment 2.

Attachment 2 of the MOU is replaced with the attached revised timeline.

Except as provided herein, all terms and conditions of the referenced document remain unchanged and in full force.

ATTACHMENT 2

EIS Timeline

Rosemont Copper Project

Notes:

1. Timeline is contingent upon Proponent provision of necessary data/information.
2. Timeline is contingent upon the absence of unavoidable adverse unforeseen events (e.g., complex wildfire on Forest, serious injury or illness of key player, etc.).
3. Time line contingent upon Proponent's support of SWCA to meet the needs of the Forest for analysis
4. Forest Service will adjust its analysis approach to imporve efficiency where possible.