On August 31, 2023, Shandong Province's national key monitoring enterprise monitoring information release platform showed that Zaozhuang ** New Building Materials Co. Sulfur dioxide was suspected of exceeding the emission standard on 8.27-8.28. PECC reflected the situation to the local environmental protection bureau via 12369 and Weibo, as detailed in the following chart:

September 28, 2023 received feedback from the local environmental protection bureau: for the enterprise exceeding the standard has been investigated and verified, and a case has been opened for investigation.