On January 8, 2024, in Shandong Province, key monitoring enterprises self-monitoring information public platform shows that **Environment (Zaozhuang **) Wastewater Treatment Co. Ltd. discharge COD 12/31, 1/1, 1/3 is suspected of exceeding the standard discharge. PECC reflected the situation to the local environmental protection bureau through 12369 and microblogging, see below:

Feedback was received from the local EPA on February 26, 2024: the enterprise's violations were investigated and six separate Notices of Order to Correct Administrative Violations were issued.