Hangzhou Oxygen Plant Group Co.,Ltd. manufactures and sells air separation equipment and parts, cryogenic and petrochemical equipment, and other gas products in China and internationally. It operates through Machinery Manufacturing, Gas Sales, and EPC segments. The company offers high-purity gas, rare gas, new energy gas, mixed gas, electronic special gas, electronic bulk, medical gas, and excimer laser gas; medical detection mixture, energy gas liquid hydrogen, and carbon; and oxygen, nitrogen, argon, neon, helium, krypton, xenon, carbon dioxide, and hydrogen. It also provides EPC services. In addition, the company engages in the hydrogen production, purification, storage and transportation, filling, CCUS, and other energy related businesses. It serves the metallurgy, chemicals, machinery, semiconductors, aerospace, new energy, new materials, healthcare, and food preservation industries. The company was founded in 1950 and is headquartered in Hangzhou, the People's Republic of China. Hangzhou Oxygen Plant Group Co.,Ltd. is a subsidiary of Hangzhou Hangyang Holdings Co., Ltd.