Toronto-based Chariot Resources (TSX: CHD) has added 136 drill holes completed in 2008 to the database at its Mina Justa copper project in Peru as part of ongoing optimization studies on the project.

The drill holes were not contemplated in the 2008 resource estimate that formed the base of last year's feasibility study, the company said in a statement.

The holes include 13 extensions to holes drilled in 2007 and 15 extensions to holes drilled in 2008.

"The updating of our data base has highlighted the upside potential at our Mina Justa project," said CEO Ulli Rath.

The newly included holes were drilled at the Copper 40, MA 67, Northern Oxide and Western Extension Gap areas, all outside the planned open pit.

Chariot has said it is looking for a buyer to take over the company, and reported in December that it had finished an optimized mine plan to increase life-of-mine production.