Qingdao Tianya Chemical Co., Ltd is the leading Sodium Metabisulfite China manufacturer and supplier, we produce and supply excellent quality China Sodium Metabisulfite products, our Sodium Metabisulfite products includes Sodium Metabisulfite Food Grade and Sodium Metabisulfite Industrial Grade (Technical Grade), and we also produce other a range of water treatment chemicals, including Sodium Bicarbonate, Polyaluminium Chloride (PAC) and Caustic Soda (Sodium Hydroxide), etc.. Our factory is located in Weifang of China, China’s biggest sea salt, soda ash, bromine, and refinery bases, and Asia’s biggest chlor-alkali base, which owns