China Plastics Piping Association (CPPA), is a non-profit organization founded on the principle of voluntariness by enterprises manufactured plastic pipes and some related social organizations in China. At present, there are more than 300 members from 28 provinces (autonomous regions and municipalities), consisting of research and testing institutions, manufacturers of plastic pipes and fittings, suppliers of inspection equipment and raw material and etc., some of which are administrative offices of foreign companies in China. The throughput and sales volume of the members of China Plastics Piping Association (CPPA) accounts for about 70% of the plastic pipes industry.