hangzhou oxygen plant group co., ltd. (hereinafter referred to as hangyang) was established in 1950 and listed on the shenzhen stock exchange in 2010 (stock code: 002430). it is a world-class supplier of air separation equipment and cryogenic petrochemical equipment in china. the pioneer and leader of the gas industry.
hangyang is the manufacturer of the first air separation plant in china. the output and sales volume of large and extra-large air separation plants are the world's largest. leading level; the domestic market share of low-temperature petrochemical products such as ethylene cold box is the first, and the project "r&d and industrial application of ethylene complete technology of complex raw material million-ton level" won the first prize of the national science and technology progress award.
in recent years, hangyang has adhered to the development strategy of "focusing on both ends, expanding horizontally, and making high-quality products", and realized the whole industry chain operation of "general engineering contracting-equipment manufacturing-gas operation". at present, 48 professional gas companies have been invested and established nationwide, with a total oxygen production capacity of over 2.5 million nm3/h. the gas supply mode is mainly based on pipeline gas on-site gas production, small storage and liquid retailing, and also operates neon helium krypton xenon rare gas, ultra-high-purity gas, electronic bulk gas, high-end medical gas and food preservation gas, etc. it can provide integrated solutions for centralized gas supply in industrial gas island parks, and can develop special gases on demand.