Filed under Green Tech Freon-22 (R 22) Market Likely to Emerge over a Period of 2019 – 2023: Chemours (DuPont … Published by on September 13, 2019 Manufacturer Detail: Chemours (DuPont) Honeywell , Jiangsu Meilan Chemical , Zhejiang Juhua Chemical , Jiangsu Bluestar Green Technology …