On Dec.18, the EPC project of galliumgermaniumindiumcopper comprehensive recovery upgrading project of Danxia smelter met the production capacity, recovery and performance qualifications, and passed the performance test successfully. CINF has undertaken the project since Feb., 2016, completed it in Oct. 2016, and has performed the trial production since Oct. 24. For 13month trial production and technical upgrading, the production and operation are steady at and the performance tests achieve the requirements.