1984
The former Haining electronic component plant was established;

1993 
Haining electronic component was restructured into joint stock cooperative system, and renamed Haining Tiantong electronic industry company limited.

1998
Hai’ning Tiantong electronic industry company limited was granted certificate for import and export exterprise in PRC, and renamed Zhejiang Tiantong electronic company limited.

2001
Zhajiang Tiantong electronic company limited, the first listed company controlled by natural person, was one of the 10 biggest news about Chinese enterprises in 2001.

2004
TDG brand was granted Zhejiang famous trademark by Zhejiang industrial and commercial bureau. The headquarter of Jiaxing TDG (Tiantong Jiaxing technological industry park) laid a foundation in January 18.

2005年
Approved by China Securities Regulatory Commission, TDG additionally issued 45 million A stock, and raised 280 million RMB. TDG established SMT department, for the development of industrial chain. September, Tiantong Jiaxing technological industry park, covering 300K square meters and invested more than 1 billion RMB, was constructed.

2006
Tiantong Zhejiang Precision Electronics Technology Co., Ltd, the platform for TDG’S electronic manufacturing and service, was established and granted ISO9001:2000 and ISO14001:2004.

2007
September, R&D center was constructed. The Company took advantage of the groups’ advantage in soft magnetism, provided low-cost solutions and customized product R&D for magnetic components and modules.
November, the Company signed a strategic cooperative partnership with Taxan group, so as to construct competitive platform for global supply chain and procurement, and to enter Japan market.
December, the Company was granted 2007 Leading enterprise in jiaxing foreign trade industry.

2008
January, the Company made its three-year development strategy which will construct southern/northern China base with Jiaxing as the center, expand the scale and covering range of eastern China base, strengthen the core competitiveness of upstream industrial chain (magnetic components and structural components), and forge TDG-TECH the biggest EMS brand in China and competitive EMS brand in the world;
February, the Company built bar code tracing system;
February, the Company built bar code tracing system;
April, the Company constructed library of product reliability and failure analysis;
July, TDG-tech established preparatory group for precision machinery department;
September, Southern China base-Shenzhen Tiantong precision electronic technology company limited began production;
The Company was granted new practice patent of magnetic core and its integrated inductor by state intellectual property bureau;
The Company passed SGS’S ISO9001:2000;
October, the Company started TD-SCDMA mobile phone assembling and base station assembling testing;
The Company independently researched and invented DSL splitter, TM series module-TM1109 and TM1409, and passed the provincial new product approval by Zhejiang information industry department.
December, the Company won a majority vote for approval of clean production;
Passed SGS’s IS14001:2004;
Passed high-tech enterprise certificate;
Won 2008 tax award for enterprises taxed over 5 million RMB;
Won 2008 10 best industrial leading enterprises;
Won 2008 10 best new-type enterprises;
Won 2008 A-type enterprises of Jiaxing foreign currency trust construction.

2009
March, the Company entered automotive electronic market, interiorly promoted ISO/TS16949.
April, the Company participated in kernel equipment pilot test of China 4G LTE test network and started manufacturing/test/assembling of 3G TD/WCDMA/CDMA2000 network repeater;
May, the communication system product surpassed the communication terminal product for the first time and became the most core business of the Company, of which means TDG-tech had become the domestic communication system EMC provider with most various products and biggest production capacity in eastern China;
The Company introduced Teradyne 8852 ICT tester, and bought the widest wave-soldering equipment and biggest BGA rework station in China, further improved the comprehensive engineering capacity of communication system products;
June, the Company set forth SAP-ERP project and implemented process flow optimization and enterprise information update;
July, the Company shook hands with IPC China, constructed IPC eastern China training base in Jiaxing Tiantong electronic product park, and passed ISO/TS16949.
August, the first order of the precision machinery department-new-energy big-scale control cabinet was delivered. September, TDG-tech’s 2008 excellent employees travelled to Yunnan;
October, TDG-tech’s SAP system ran a simulative operation;
November, TDG-tech’s SAP system went online, of which means the completion of TDG’s process flow optimization.