On June 23, 2010, the two projects of our company, "National Standard Samples of Copper Ore and Copper Concentrate" and "National Standard Samples of Sulphur Concentrate (Pyrite)" passed the appraisal and acceptance by the competent national authorities. The standard values of 15 elements in copper ore and copper concentrate and 7 characteristic components in pyrite concentrate were determined respectively, reaching the same level. Standard samples are advanced in China.
