We are Yen Bai Cement & Minerals JSC company, YBC, a biggest CaCo3manufacturer in Vietnam with monthly production capacity of 16,000 tons.90% of our product is for export and we are proud that our CalciumCarbonate is considered as top quality in South East Asia.We are strongly confident that our product will meet your expectation.We remain contacted at Tel : 84-983390871skype: tuanincoemail: ybc.tungnguyen (gmail)