Zhuzhou Hongda Polymer Materials Co., Ltd. undertakes the EPC general contracting project of the Acid Gas Wet Acid Plant (Expansion) of China Petroleum Group, with an annual output of 20000 tons of sulfuric acid. The
project was successfully completed and put into operation in September 2021, becoming the first wet acid plant in China to meet the ultra-low emission requirement of tail gas (sulfuric acid mist) emissions below 5mg/Nm ³.