Zijin News, Academician Chai Liyuan of the Chinese Academy of Engineering, and related industry experts has assessed ‘the Vitriol bearing gold and its target elimination’ technology of Guizhou Zijin to reach international advanced level. This technology greatly improves the adaptability of the pressurized oxidation process and promotes the progress of gold smelting technology. In the industrial application of Guizhou Zijin in 2018 and 2019, the incremental output value of this technology exceeded 80 million yuan, and the highest monthly average comprehensive gold recovery rate reached more than 95%, exceeding the design index. Guizhou Zijin will accelerate the technical transformation of the existing 450 tons/day pressurized oxidation system to 1,450 tons/day, and increase the application of this technology.