2006年3月29日／第三者割当増資の実施

2006年3月27日／第二回無担保私募債の発行

January 31, 2006 / Our website was renewed.

October 11, 2005 / Established Steel Pipe Processing and Distribution Center in Wakayama

September 30, 2005 / Issued First Private Placement Bond

September 25, 2005 / Liaoning Dongyu Oil Pipe Manufacturing Co., Ltd. − Continues to Achieve Excellent Results in This Fiscal Year As Well

September 19, 2005 / Oilrig Manufacturing Company Begins Its Operation

May 18, 2005 / Establishes a Joint Venture with North China Petroleum Management Bureau