The official website of Suzhou Economic and Technological Development Zone released the first public announcement on the environmental impact assessment of the second phase expansion project of Suzhou Yivite New Materials Co., Ltd. semiconductor gas, material research and development and localization on July 28. It is understood that the project plans to build a purification and sub-packaging device for hexafluoroethane and octafluorocyclobutane in the original factory area of Jin'an Road in Suzhou Economic and Technological Development Zone, with a designed capacity of 500 tons/year; mixed gas, with a capacity of 45,000 m3/year; Electronic grade laughing gas, with a production capacity of 6000t/a; 620t/a of combustible and corrosive gas, 85750 cubic meters of combustible gas and bulk gas per year. The total investment of the project is 405.9014 million yuan. Suzhou Yivite New Material Co., Ltd. is a wholly-owned subsidiary of Zhejiang Daughter Vessal Technology Co., Ltd. It was established on June 12, 2017 with a registered capital of 120 million yuan.