Meanwhile, the source of raw materials and the supervision of the supplychain have become the focus. In 2025, China 's customs and relevant departmentsintroduced new regulations, requiring that imported regenerated pulp (recycledpulp) must declare its "dry" or "wet" processing method,and if the impurities exceed 0.5%, it will be returned or destroyed. Thismeasure has directly affected the international waste paper/recycled pulpsupply chain. Suppliers and exporters in many countries have been forced toadjust their export strategies, and domestic papermaking enterprises have alsobecome more dependent on compliant and clean sources.