The main producers of water-absorbent resins are Evonik, BASF, Catalyst Japan, SANDAYA, Sumitomo, LG Korea, NA Industries, Wanhua Chemical, Formosa Plastics, Noel Group, Satellite Petrochemical, etc. And in the field of high water absorption resin (SAP), according to the research of the Newscorp Industry Center, the three global SAP giants are Japan Catalyst, Germany BASF and Germany Evonik. From the perspective of the domestic market, the top three domestic SAP capacity companies are Yixing Danson, Shandong Noel and Nantong.

Achieve "three inspections and one self-inspection, mutual inspection, full-time inspection and one-time notification of qualification", constantly summarize the maintenance experience, and improve the quality of maintenance.