Commissioning on October 2018. Allgreen’s first set of smelting based heat recovery system, the world's first acid-acid heat exchanger was officially put into operation.

The 38th China Sulfur and Sulfuric Acid Technology Annual Conference and 2018' China Sulphur Phosphorus Titanium Industry Chain Summit was held in Hangzhou, Zhejiang Province from August 21st to 24th, 2018. Five expert engineers of our company attended the meeting.