Hongkong Sts Testing Technology Service Co., Limited is an independent third-party testing laboratory based in Shenzhen China. STS operations have recently been opened to cover testing needs in US and UK.STS testing is recognized by several internationally recognized Certification Bodies and Notified Bodies: the United states UL, Timco, Germany TUV and China CNAS.STS has been suthorized by UL,FCC,TIMCO,SIEMIC,VCCI,IC,CSA,EMSD,TUV,RMCC,PHOENIX,NEMKO,ECO,testing service products range for information technology appliance,household appliances,lamps,electronic tools,automotive electronics,wireless products,etc.,we can help customers directly for UL,GS,CB,CE,FCC,SAA,SASO,SONCAP,PSE,EK-mark,E-mark,FDA,CCC,etc.,to help customers apply for multi-national certification at a time.Our unique expertise and specialized resources and abundant experience lead us to realize the enormous responsibilities and expanding. Nowadays, STS is the leader in the market due to its comparatively technical advantages and efficient localized services.To provide different customer with professional,comprehensive,reliable,high-class testing and certification services is our goal.Profession interpreting our quality,faith accomanying our service,effiency to gain your recognition,to win a win-win cooperation.