On April 27, 2022, the public platform for self-monitoring information of Shaanxi Province's sewage units showed that Fugu County **** Limited Liability Company's nitrogen oxides were suspected of exceeding the standard emission on 2022.4.13-2022.4.14 PECC reflected the situation to the local environmental protection bureau through 12369 and Weibo, as detailed in the following chart:

June 24, 2022 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.