Cangwu Saintgreen Chemical Industry Co., Ltd. (the original name is HongQing Chemical Trade Co., Ltd.), was established in 1993, an enterprise integrating research, development, production and marketing together. Saintgreen is located at the bank side of Xijiang River , Cangwu County , Wuzhou City , Guangxi Province , China occupying a land of 33000 M3 with a staff of more than 200 employees, of which 15% are engineering technicians.

Each year Saintgreen produces 7000 tons of copper sulfate, 15000 tons of polymer ferrous sulfate, 12000 tons of ferrous sulfate monohydrate, 35000 tons of ferrous sulfate heptahydrate. About 70% of the products are exported to USA , UK , France , Spain , Australia , New Zealand , Japan , Korea , Vietnam , Thailand and Taiwan.

Presently, Saintgreen Chemical Industry Co,. Ltd bases on the development strategy of capital shareholding system, management modernization and marketing internationalization. In February 2006 Sanitgreen was accredited ISO 9001:2000. Saintgreen emphasizes on“customers' need come first”and provides perfect quality products with reasonable price and excellent services. Moreover, Sanitgreen is always looking forward to cooperation with traders and manufacturers all over the world for mutual benefits and bright future.