well-known as well. the main products include modified asphalt waterproof membranes, self-adhesive waterproof membranes, asphalt shingles, pvc, eva and other polymer waterproof membranes, drainage boards, waterproof boards and waterproof coatings, etc. the production capacity is 70-million square meters of waterproof membranes, 80-thousand tons of waterproof coatings and 20-million square meters of drainage boards and waterproof boards.new sanya group has national grade a contracting qualification in building waterproof projects, named as silver medal by china building waterproof association. it has established strategic cooperative relationship with well-know enterprises, such as sichuan huaxi, china resources (holdings) co.,ltd, crcc, china railway group limited, sinohydro group, cscec, cnnc, china minmetals corporation, poly developments and holdings group co.,ltd, jinke group, wanda group, sunshine city group, jiale group, etc. the products are widely used in housing construction