Qingdao LNT Chemical Co Ltd is a chemical manufacturing company located at Qingdao in China, and it is 100% subsidiary of an Australian investment company. The plant was built up in China and has been focusing on special thio-chemicals development and production since year of 2004, their Thionocarbamates (Example IPETC), DTPs (Dithiophosphates) Mercaptobenzothiozale salt, and Sodium Thioglycolate (STG) are mainly applied to mineral flotation process and have been exported to Australia, South Africa, Europe, Chile . Qingdao LNT Chemical has been assessed and certified as meeting for the request of ISO 9001 / ISO 14001 / OHSAS 18001 by with SGS since 2013 .