Kingstone Chemical Shanghai Co., Ltd. is a professional supplier and exporter of cellulose ether, construction chemical, food additive and high performance pigment. We were established by a group of investors who have more than 10 years' experience of import and export in chemical industries. HPMC is our core business. We invest and make joint venture for 3 factories in Hebei Province with capacity 20000MT per year. We always pursue stable quality, moderate price and perfect service. "To ...