On November 23, 2021, Shandong Province key monitoring enterprises self-monitoring information public platform shows that Shandong xxx Coking Co., Ltd. particulate matter in 2021.11.19-2021.11.21 suspected exceeded the emission standards. PECC reflected the situation to the local environmental protection bureau via 12369 and Weibo, as detailed in the chart below:

December 10, 2021 received feedback from the local environmental protection bureau: for the enterprise exceeding the standard has been investigated and verified, and filed a case to deal with.