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Janurary 30, 2007 / PMC issued new stocks on third time
November 16, 2006 / Japan Petropipe Co., Ltd. began fully operation
July 31, 2006 / Shengli Oilfield Petropipe Co., Ltd. gegan fully operation
July 31, 2006 / PMC isuued new stocks on July 3, 2006 on second time
March 27, 2006 / PMC issued corporation debenture bonds on 2nd time.
December 12, 2006 / Organization name changed to PetroMaterials Co.
October 11, 2005 / Established Pipe Processing & Distribution Center September 30, 2005 / Issued Corporate Debenture Bonds at First Time.
September 25, 2005 / Liaoning Dongyu Co. Earning Shows GoodResults
September 19, 2005 / Oilrig Manufacturing Company Begins Operation
May 18, 2005 / Establishes a JV with North China Petro Management Bureau
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