In 2022, TDG's 6-inch lithium niobate wafers for surface acoustic wave devices (TC-SAW) was certified the first (set) in China

In 2021, phase one plans for the TDG Pan-Semiconductor Industrial Base were completed. We also received approval to establish a national technical standards innovation base (for new magnetic and optoelectronic information materials)

In 2020, TDG joined the Yangtze River Delta Entrepreneur Alliance and exhibited the company's first 8-inch Lithium Niobate (LN) double-throw wafer at SEMICON/FPD China 2020

In 2019, TDG officially launched its first smart production line in China for soft magnetic materials

In 2018, TDG was recognized as a company role model for national technology innovations. We also held a product launch for our 400kg sapphire crystal at the Shanghai New International Expo Center

In 2017, TDG won the gold medal in the Invention Entrepreneurship Award - Project Award category at the National Exhibition of Invention

In 2016, TDG was recognized as a technological center for domestic companies and established a province-level critical for-profit research institute

In 2015, TDG participated in the setting of international standards for magnetic ferrite cores

In 2014, TDG invested in and developed a TDG sapphire manufacturing base - TDG Yinxia New Material Co., Ltd.

In 2013, TDG held a press conference to launch its new leading product, a C-axis sapphire crystal weighing 90kg

In 2012, TDG and Zhejiang University established the Key Laboratory of New Information Materials of Zhejiang Province

In 2011, TDG was recognized as an Outstandingly Innovative Company in the domestic electronic information industry

In 2010, TDG separately signed strategic collaboration agreements with Japanese company Dai Ichi Kiden, and the 48th Research Institute of the China Electronics Technology Group Corporation

In 2009, TDG was awarded China Well-known Trademark status and also obtained ISO14001 Environmental Management System Certification

In 2008, TDG took on the role of secretary for the National Technical Committee for Standardization of Magnetic Components and Ferrite Materials, Soft Magnetic Ferrite Materials Branch. We were also recognized as the National High-tech Enterprise

In 2007, TDG's magnetic materials were recognized as the China Top Brand for the first time

In 2006, TDG Technology Co., Ltd. was founded, and we began venturing into electronic component

In 2005, Tiantong formally changed its name to TDG Holding Co., Ltd.. We bought Aisi Jicheng Machinery Manufacturing Co., Ltd. and began the development of our smart equipment business. We also received a Product Quality National Exemption Certificate for our soft magnetic ferrite core products

In 2004, the Tiantong (Jiaxing) Science and Technology Industrial Park was established. TDG's ultra-low power consumption MnZn ferrite TP5 material was recognized as a Breakthrough New Product by the Ministry of Science and Technology

In 2003, TDG obtained the ISO9001:2000 Quality Systems certification

In 2002, TDG received the Breakthrough New Product Certificate issued by the Ministry of Science and Technology for its cores and one of its new materials, the Power MnZn ferrite TF3 material used in high-resolution video image FBT

In 2001, TDG became listed on the Shanghai Stock Exchange. An event reported on as one of the Top Ten Most Important Chinese Corporate News Stories for the year

In 2000, TDG was selected as a key high-tech company in the China Torch Program. The anti-electromagnetic interference (anti-EMI) project, which was the largest technical innovation in TDG's history, and the soft magnetic ferrite powder and core technical innovations in telecommunications project were officially launched

In 1999, we received the gold medal in the 10th National Starfire Cup Invention Competition for our soft magnetic ferrite core products

In 1998, TDG was renamed to Zhejiang Tiantong Electronics Corporation, converting from a limited liability company into a corporation

In 1997, TDG obtained ISO9002:1994 Quality Systems certification

In 1996, the State Economic And Trade Committee approved Haining Tiantong Electronic Industry Co., Ltd. to become an exporter of soft magnetic ferrite materials

In 1993, the Haining Electronic Components General Factory was converted  Haining Tiantong Electronic Industry Co., Ltd. governed by an Employee Stock Ownership Plan

In 1991, the Haining Electronic Components Factory was renamed the Haining Electronic Components General Factory. The development of high-performance ferrite power materials and magnetic derivative products was included in the 1990 National Spark Program

In 1988, our ferrite UF color TV receivers and E-type magnetic core projects won third prize at the Ministry of Agriculture's Scientific and Technological Progress awards

In 1984, the Haining Electronic Components Factory was built