北京开碧源贸易有限责任公司成立于2003年，公司与地质大学、北京大学联合在河南温县建立生产基地，温县开碧源净水材料厂。被建设部定为专业产品推广厂家。产品广泛用于城镇供水、排水、以及化工、冶金、电力、油田、造纸、工业污水处理等领域，是各大型企业理想的合作伙伴，主要产品有：活性炭系列、净水剂系列、滤料系列、塔器填料系列、波纹补偿器系列、橡胶接头系列。
Beijing Kaibiyuan Trading Co., Ltd. (KBY for short) was founded in 2003, which specialized in the water purification materials and equipment in mainland, and have been identified as a professional product promotion factory by the Ministry of Construction. For many years, Kaibiyuan have been cooperating with University of Geosciences, Peking University and continually optimizing the industrial structure. Respectively, Kaibiyuan has set up the production bases in Wenxian County, Henan Province (Wenxian county KBY water purification materials plant), and in Beijing. From the start of a single filter supplier, KBY has developed into consolidated entities enterprise which covers the production and sales of six series products including activated carbon, filter media, tower packing, purifying agent, expansion joint and rubber joint. The products are widely used in urban water supply, drainage, as well as the chemical industry, metallurgy, electric power, oil, paper, industrial wastewater treatment.