ENFI undertakes the EPC work, upon completion, this plant can produce 1 million tons of concentrated sulfuric acid at 98.5% and saturated steam at 10 Bar as by-product.

The typical "3+1 double-conversion & double-absorption" process is adopted, where the SO2 conversion rate can reach 99.8%. The process package and key non-standard equipment are all designed by adopting Chinese self-retained technologies.