Sodium bisulfate 98%

Established in 1994, Sigin Chemical & Industry is a trading and import company supplying industrial and food-grade caustic soda in multiple forms — flakes, powder, pearls, and columns, in purities from 96% to 99% — along with sodium formate and related pharmaceutical excipients and feed additives. The company ships on FOB terms, accepts buyer-specified requirements and small orders, and serves customers across North America, Europe, Asia, the Middle East, and Africa.