Hangzhou Oxygen Plant Group Co., Ltd. manufactures and sells air separation equipment, cryogenic petrochemical equipment, and various gas products in China and internationally. It operates through three segments: Machinery Manufacturing, Gas Sales, and EPC. The company offers oxygen, nitrogen, argon, neon, helium, krypton, xenon, and carbon dioxide, as well as medical, electronic bulk, electronic specialty, high-purity, standard, and mixed gases. It also provides supporting machine components such as turbo compressors, expanders, adsorbers, and plate heat exchangers, along with engineering, procurement, and construction services. Additionally, it is involved in hydrogen energy, energy storage, CCUS, nuclear fusion energy, technical services, logistics and transportation, and retail. Its customers span metallurgy, chemicals, machinery, semiconductors, aerospace, new energy, new materials, healthcare, food preservation, electronics, nuclear fusion devices, and scientific research. Founded in 1950 and headquartered in Hangzhou, China, it is a subsidiary of Hangzhou Hangyang Holdings Co., Ltd.