Secheron S.A (hereinafter called Secheron), established in 1879, headquartered in Switzerland, is specialized in design, research, production, sales and service of components and systems of DC traction power. Secheron has
been developing components and systems for rail transit for over 100 years. Today, Secheron has become the leader of DC traction power market. The core products as DC circuirt-breaker have the biggest market share and
are applied in rail transit projects all over the world.

Daqo Group Co. Ltd.(hereinafter called Daqo), one of the leaders in power distribution and transportation field in China, started cooperation with Secheron in 1998. Daqo introduced DC switchgear from Secheron and served for China rail transit. Until the end of 2006, Daqo has provided DC switchgear for more than 10 lines in different cities and got good reputation from the customers.

The two companies jointly established a joint venture company named Zhenjiang Daqo Secheron Traction Power Co., Ltd. (hereinafter called ZDS) in January 2007. In addition to DC switchgear type KMB and MB, ZDS introduced
prefabricated traction rectifier substation type SIK, static adjustable power device type SAPD, DC disconnector switchgear type DSS, stray current drainage device type SCDD and other products to meet the diversified demand
of customers.

As the establishment of ZDS, we have enough capability to provide more excellent solutions to customers and to provide high quality products and top-ranking service for China mass transit industry which develops quickly.