Hangzhou Oxygen Plant Group Co., Ltd.

Hangyang specializes in the design, manufacturing, engineering, and installation of air separation plants from small to extra-large scales, with a maximum capacity of 120,000 Nm³/h. It has supplied more than 4,000 ASU sets in China and leads globally in the output and sales of super-large units (60,000 Nm³/h and above), commanding over 50% domestic market share. The company also produces cryogenic petrochemical equipment such as ethylene cold boxes and supports projects in metallurgy, chemicals, semiconductors, new energy, aerospace, and healthcare.

Hangyang operates over 60 gas subsidiaries nationwide with a total oxygen production capacity exceeding 3.5 million Nm³/h, offering one-stop solutions including pipeline supply, on-site production, and specialty gases. Its products are exported to more than 40 countries. The company invests in R&D for hydrogen liquefaction, CCUS, and energy storage while pursuing vertical integration from equipment to gas operations. It holds a flagship position in China's industrial gas sector as a publicly listed enterprise with a focus on technological self-reliance and international expansion.