Beijing Tiangang Auxiliary Co., Ltd. was founded in 1998,specializes in producing series of hindered amine light stabilizer and its intermediates.This is the second company that President Liu Jie established,the first one is Beijing Huashan Auxiliary Factory founded in 1991.In order to enhance competitive ability, Tiangang merged Huashan at the beginning of 2004,became one company. Our products such as BW-10LD(622LD),HS-770,HS-508 and their intermediates have been sold well in domestic market as well as overseas market such as Taiwan,South Korea,Europe and USA.By developing advanced technologies and keeping higher quality ,we obtained certificate of quality system certification to GB/T19001-2000 idt ISO9001:2000 standard.Also we long term cooperation with universities and institutes particularly in R&D to get fresh idea and update technology . Tiangang people insist on the principle of being honest,innovation and advanced as well as management concept of forever perseverance in pursuit of highest quality and best service.