May 21st, ACRE and Henan JInma Energy Co.ltd signed the engineering contract of 2 million t/a coking project with EPC contract of acid production of desulfurization waste liquid. The contract include 2×70 ovens with 7.65m top charging coke oven, 3×130t/h CDQ, which are the most advanced coke oven technologies of ACRE. The acid production technology can deal with the pollution of desulfurization waste liquid from HPF process.