Quadra Mining News

Quadra Mining Ltd., announced their 1st quarter 2006 production statistics for its 100% owned Robinson Mine located in Nevada. Copper production during the quarter was below plan of 28.7 M pounds due to lower copper recoveries & lower mill operating time. Copper mill feed grade was marginally above plan. During the quarter ended March 31st, 2006 mining of the Tripp Pit was completed & all ore is now being mined from the Veteran Pit. The ore encountered in the 1st & highest benches of the Veteran Pit proved more difficult than expected to process due to an exceptionally high iron content (contained in pyrite) & this resulted in the lower than planned copper & molybdenum recovery. Mill production was affected by several maintenance issues which reduced the utilization to 89%. The plant is expected to get back up tothe planned 93% operating time with these issues now resolved.