Shenzhen Terca Technology Co.,Ltd is primarily engaged in the research, manufacture, sale and maintenance of vehicle retarders. The Company's major products are electromagnetic retarders, including B series retarders, M series retarders and R series retarders. The Company distributes its products mainly in domestic markets. As of December 31, 2010, the Company had one wholly owned subsidiary, mainly involved in development and distribution of industrial controlling technologies and computer software.

Terca, shortened for the Shenzhen Terca Technology Co.,Ltd, is the first one in China to R&D, manufacturing and sales the vehicle electromagnetic retarder. It is a private owned high tech enterprise, and is also well known for its innovation and prevision in research and development. “Focus on Safer and Easier Transportation”, TERCA Retarder contributes a great deal to the technology revolution in the auxiliary braking system of automobile.
Established on 25 October, 2000, situated in Shenzhen,  Terca will have a base of 34,000 square meters for R&D and production, which will obtain the license from government authorities with production capacity of 50,000 complete retarders per year.
Since its establishment, Terca knows the importance of possession of intellectual property itself. Terca has taken out 22 patents in the State Intellectual Property Office (SIPO)  of the P.R.C., and it has four patents for invention and five patents for utility model put on records in the SIPO. Those make Terca’s technology take a leading position in the international industry.
Owning to it’s hard work in technology innovation, Terca has been commended many times by Shenzhen government. In 2006, Terca has covered the glory of “The Shenzhen Famous Brand”, “The Top 100 of Shenzhen Innovative SME”.
Terca has been granted the quality system certificate of ISO9001：2000、ISO/TS16949:2002 and the EMC certificate of E-Mark. In addition, Terca joint into the work team which leaded by Chongqing Automobile Research Institute to formulate the industrial standard--“the technical role of vehicle electromagnetic retarder assembly”, and played an important role in the drafting and testing.
Terca has developed three series about 18 specifications and 40 varieties retarders, which can match the vehicles ranging from 8 to 12 meter well. By having achieved the authentication from those influential axle and gear box manufacturer, Terca has provided retarders in a great lot for those main bus manufacturer in China.
Since its establishment, Terca is developing rapidly with average annual increase of 26%. Now Terca holds the share of 40% in China, which ranks it the No. One in similar industry whether it’s from mainland or oversea.
Meanwhile, in past few years, Terca Retarder has been exported to different districts and countries around the world, such as Australia, Thailand, Korea, Philippine, Ghana , India, Pakistan, Malaysia, Russia, Viet Nam, Nepal, Taiwan, Hong Kong. To extend it’s market aboard, one joint venture has been set up in Australia, also many distribution channels have been set up in Thailand, Philippine and Russia. In one words, Terca is striving to build a international industry.
Teemed with talents, with the philosophy of “Focus on Safer and Easier Transportation”, Terca is always preparing to satisfy customers with product of high quality and pollution-free and good service.