※ In March 2007, Ningbo Tongmuo new materials Group Co., Ltd. changed its name to NBTM New Materials Group Co., Ltd.
※ In August 2006,The Limited registered capital of NBTM(TIANJIN) Powder Metallurgy Co.,Ltd. one of the Holding Subsidiary Companies was increased to 10 million dollars, the holding ratio of the parent company was increased to 75 percent.
※ In June 2006, Nanjing Tongmuo Broadsino Powder Metallurgy Co.,Ltd. one of the Holding Subsidiary Companies was established, the registered capital was 8.8916 million dollars, the holding ratio of the parent company is 51.02 percent.
※ In April 2005, Ningbo Tongmuo new materials Co., Ltd. changed its name to Ningbo Tongmuo new materials Group Co., Ltd.
※ In March 2005, Changchun Fawer Tongmuo Powder Metallurgy Co.,Ltd. one of the Holding Subsidiary Companies was established, the registered capital was 28 million yuan, the holding ratio of the parent company is 70 percent.
※ In October 2004, NBTM(Jiangmen) Powder Metallurgy Co.,Ltd. one of the Holding Subsidiary Companies was established, the registered capital was 2.5 million dollars, the holding ratio of the parent company is 60 percent.
※ In September 2004, Ningbo Tongmuo Powder Metallurgy Co., Ltd. has received ISO09001 and ISO/TS16949 certification.
※ In July 2004, NBTM(TIANJIN) Powder Metallurgy Co.,Ltd. one of the Holding Subsidiary Companies was established, the registered capital was 6 million dollars, the holding ratio of the parent company is 70 percent.
※ In June 2004, Shanxi NBTM Huasheng Powder Metallurgy Co.,Ltd. one of the Holding Subsidiary Companies was established, the registered capital was 30 million yuan, the holding ratio of the parent company is 60 percent.
※ On May 11, 2004 Ningbo Tongmuo powder metallurgy Co., Ltd. was officially listed.
※ In March 2004, Tianjin Tongmuo OE Industry Trading Co.,Ltd. one of the Holding Subsidiary Companies was established, the registered capital was 5 million yuan, the holding ratio of the parent company is 60 percent.
※ In September 2003,The Limited registered capital of Ningbo Mingzhou Tongmuo Powder Metallurgy Co., Ltd. one of the Holding Subsidiary Companies was increased to 7.7 million dollars, the total investment is 15.4 million dollars. the holding ratio of the parent company is 75 percent.
※ In February 2003, Lianyungang Tongmuo Jianghe Powder Metallurgy Co.,Ltd. one of the Holding Subsidiary Companies was established, the registered capital was 12 million yuan, the holding ratio of the parent company is 60 percent.
※ In December 2002, the application documents of Initial public offering of company shares was submitted to the China Securities Regulatory Commission official.
※ In June 2002, NBTM has received QS9000(third edition) and VDA6.1(fourth edition) certificates.
※ In May 2002, the holding shares of  Ningbo Mingzhou Tongmuo Powder Metallurgy Co., Ltd. Was increased to 75 percent
※ Ningbo Tongmuo new materials Co., Ltd. which was developed from Ningbo Tongmuo powder metallurgy Co., Ltd. in August 2001 changed the equity relationships with  Ningbo Mingzhou Tongmuo Powder Metallurgy Co., Ltd. 68 percent of shares of  Ningbo Mingzhou Tongmuo Powder Metallurgy Co., Ltd. was held by Ningbo Tongmuo new materials Co., Ltd.  Ningbo Mingzhou Tongmuo Powder Metallurgy Co., Ltd. became one holding subsidiary of Ningbo Tongmuo powder metallurgy Co., Ltd.’s.
※ The annual production capacity was planned to achieve 15000 tons.
※ Ningbo Mingzhou Tongmuo Powder Metallurgy Co., Ltd.  was established by Ningbo Tongmuo Powder Metallurgy Co., Ltd. and Mutsumi Special Alloy Industry Co., Ltd. in April 2000. The company is registered with the capital of 3.5 million dollars.
※ Ningbo Tongmuo Powder Metallurgy Co., Ltd. has received ISO09002 certification in May 1997.
※ The annual production capacity has achieved 5000 tons. in 1995.
※ The registered capital of Ningbo Tongmuo Powder Metallurgy Co., Ltd. was increased to 7 million dollars.