Group 1 - The Chinese government implemented a ban on foreign waste imports in 2018 to prevent pollution transfer and protect public health, which has received widespread approval [1] - The ban has led to positive effects on improving China's environmental quality, but some entities have exploited loopholes by sending processed waste paper from developed countries to Southeast Asia before exporting it to China, which poses health risks and creates unfair competition for compliant paper companies [2] - The production of legitimate waste paper pulp requires extensive purification processes, while dry ground pulp production skips most of these steps, resulting in lower quality and potential contamination [2][3] Group 2 - There are existing national recommended standards for recycled paper pulp in China, but reports of impurities and pathogens in imported dry ground pulp have emerged, prompting calls for stricter enforcement and the conversion of recommended standards to mandatory ones [3] - Domestic companies utilizing recycled fibers have a rigid demand for quality, employing various methods to remove contaminants to ensure their products meet market standards, thereby minimizing safety risks in final products [3]