PTC Thermistor manufacturing facility put into production in April 1999.

Became qualified supplier of UT-Starcom in May 1999.

Thermistor production capacity exceeded 40 million pcs in November 2000.

Passed through ISO9002：1994 Quality Certification in May 2001.

Passed through CQC Certification conducted by China Quality Certification Center in December 26, 2002. (CQC No. CQC02000002714）

Passed through ISO 9001：2000 in January 22, 2003 (No. 0243Q10189R1S)

Became qualified supplier of Huawei Technology in May 2003.

Became qualified supplier of GE Lighting, and qualified supplier of OSRAM, it indicates that AMPRON PTC thermistor for energy saving lights has reached world leading level.

Overseas market development rose substantially, in the speed of 150%, Overall annual sales volume exceeded RMB 20 million in year 2003 .

100 million thermistor manufacturing facility put into production in Pinghu, Shenzhen, China in July 2004.

Passed through UL certification in July 2004, UL listed PTC thermistor products include the following: ceramic body diameter Φ5.0mm to Φ16.0mm, resistance in 25C from 1Ω to 600Ω, current from 17mA to 700mA （UL No.: E243011）

Became qualified supplier of OSRAM Italy plant in November 2004.