Paraformaldehyde(PF)production in China has grown to a considerablescale today. The total capacity was around 90 thousand t/a in 2006. Since2007, the production capacity of PF has increased drastically. ZhenjiangLee Chang Yung Comprehensive Petrochemical Co., Ltd. expanded itsPF capacity to 60 thousand t/a in June 2007. Hebei Jizhou Yinhe Chemi-cal Co., Ltd. expanded its capacity of PF from 20 thousand t/a to 30thousand t/a in July 2007. The 30 thousand t/a PF unit(located in Ningbo)of Yantai Wanhua Polyurethane Co., Ltd. went on stream in July 2007.The 20 thousand t/a PF unit in Zhejiang Guoguang Investment GroupCo., Ltd. was put into operation in July 2007. The production capacity ofPF therefore has reached around 180 thousand t/a today. The total capacity was around 90 thousand t / a in 2006. Since 2007, the production capacity of PF has increased drastically. ZhenjiangLee Chang Yung Comprehensive Petrochemical Co., Ltd. expanded itsPF capacity to 60 thousand t / a in June 2007. Hebei Jizhou Yinhe Chemi-cal Co., Ltd. expanded its capacity of PF from 20 thousand t / a to 30 thousand t / a in July 2007. The 30 thousand t / a PF unit (located in Ningbo) of Yantai Wanhua Polyurethane Co., Ltd. went on stream in July 2007. The 20 thousand t / a PF unit in Zhejiang Guoguang Investment Group Co., Ltd. was put into operation in July 2007. The production capacity of PF therefore has reached reached 180 thousand t / a today.