日本,Taiyo Nippon Sanso,大阳日酸,    
大阳日酸株式会社是全球最大的工业气体生产商之一，在亚洲、欧洲、北美拥有30多家子公司，其中包括设在美国的全资子公司MATHESON TRI-GAS。
　　上海大阳日酸气体有限公司是大阳日酸株式会社和大阳日酸(中国)投资有限公司共同在中国设立的外商独资企业，2003年5月成立于上海市莘庄工业园区。上海大阳日酸采用日本大阳日酸株式会社的先进生产设备和严格品质管理体制，生产和供应高纯液氧、液氮、液氩、氢气、氦气、二氧化碳等工业用气体以及医用氧为代表的医用气体。应用领域有钢铁、造船、金属加工、化学、半导体、TFT-LCD、LED、太阳能电池、食品以及医院等。我司还向客户提供低温液体储罐供应系统，PSA、制氮机等现场制气设备，同时提供气体配管工程、现场分析服务与维护与气体相关的综合配套服务。

Taiyo Nippon Sanso Corporation is the fruit of the merger of Nippon Sanso Corporation and Taiyo Toyo Sanso Co., Ltd., on October 1, 2004. The Company is drawing on the capabilities of its two predecessors in its drive to become a leading player in Asia and around the world.

Industrial gases are used widely today and producers use a variety of methods to provide gas to their customers around the world, including via pipeline, tanker truck and cylinder. At present, there are five industrial gas producers with global operations—of which the Taiyo Nippon Sanso Group is one—and these five companies account for approximately 80% of the global market. The Taiyo Nippon Sanso Group currently ranks fifth in the world.