In 1998: The Planning & Economic Commission of Sichuan Province established the Sichuan Sanda Science & Technology Development Department.
In 1993: a limited liability company was founded.
In 1998: It started to research and trail production of the first generation changeover switch by adopting up-to-date foreign changeover
Switch technology.
In 1999: It passed the certificate of ISO9001 Quality system and CE security certificate. ADA was registered as a trademark as its products.
In 2000: The second generation changeover switches were put into production.
In 2001: It got the certificate of Hi-Technical enterprise of Sichuan province.
In 2003: It passed the 3C certificate and established Shanghai Sales Branch.
In 2004: It brought 30-mu land in Kunshan,Jiangsu, establishing the Kunshan Sales Branch and production center.
