As the largest and most professional Sulphide manufacturer in Asia,Shandong Efirm Biochemistry and Environmental Protection Co.,Ltd is a real manufacturer especially product Thiourea 99% min and Sodium Hydrosulfide.It will become list company in the year of 2015.Although it was founded in Jan 2011,we have started to product Thiourea under our Group since the year of 2003. Thiourea 99% purity min is usually used as Pharmaceutical Intermediates,Gold Mining floating,Making Pesticide,Electrofacing Cleaning Chemical,Rubber making,Textile Auxiliaries Agent etc. Now the actual capacity of Thiourea 99% is 30,000MT per year,and will soon reach to 50,000MT next year. Sodium Hydrosulfide is is divided into three categories,the Liquid purity is from 32% to 48%,the Solid purity is from 70% to 98%,the Flake purity is from 68% to 70%.It is a very important chemical used in copper mining and leather depilating agent. Now the actual capacity of Sodium Hydrosulfide is as follows:the Liquid 70,000MT,the Solid 30,000MT,the Flake 30,000MT. Our advantage are as follows: 1,Free and adequate Hydrogen Sulphide to assure the production 2, advanced Technology Center and professional technicist to assure the quality. 3, Own power plant and Sewage Treatment Plant to save the cost. 4,Biggest capacity and high quality to assure the shipment and most competitive price. We have exported our production to Japan,Russia,Brazil,India since the year of 2006.Our quality has been recognized by customers.We are finding Chemical Agent in Asia,Europe and South America,if you are interested in it,we are looking forward to doing long-term business with you. Welcome to visit Shandong Efirm.