1910 – established as the Nippon Sanso joint-stock company.
1911 – the start of oxygen production in the Osaki factory.
1918 – Renamed to Nippon Sanso Corporation and the company formally founded on 19 July.
1934 – air separation unit for making, Kamata factory .
1935 – First air separation unit completed for domestic usage
1954 – established the Kawasaki plant, liquefied oxygen and high-purity nitrogen, argon started manufacturing.
1955 – Tokyo factory was separated, and Nippon Rika Kogyo Co., Ltd., changed its name to Nippon Sanso Corporation its trade name.
1971 – the first time in the world of LNG cold energy utilization air separation unit, completed in Tokyo liquefied oxygen .
1989 – Thermos Japan acquisition and acquisition of Matheson
1999 – Matheson and Tri-Gas Company merged to become Matheson Tri-gas
2001 – A spin-off household products business, Thermos Ltd., was established.
2003 – Acquired plant engineering division of Hitachi's Air separation units.
2004 – by the merger of Nippon Sanso Corporation and Taiyo Toyo Sanso Co., Ltd., changed its name to the Taiyo Nippon Sanso Corporation
2006 – Acquired all shares of Hitachi Oxygen, Ltd. as a wholly owned subsidiary.
2007 – is with Japan Carbonate Co., Liquefied Carbon Dioxide Co., Ltd., as well as a holding company to integrate the carbon dioxide business of Japan Liquid Charcoal Holdings Co., Ltd. and Taiyo Nippon Sanso, Japan Liquid Charcoal launched the Corporation.
2009 – Acquired Valley National Gases via its subsidiary Matheson Tri-Gas.2010 – Acquired majority shares of K-Air Specialty Gases to begin operation in India and agreed to build first ASU in India.2012 – Acquired Leeden ltd for its operations in Malaysia and Singapore.2013 – Nichikita Oxygen renamed to Hokkaido Sanso.
2014 – Acquired by Mitsubishi Chemical Holdings Group to become as a consolidated subsidiary.2014 – Acquired Continental Carbonic Products, Inc. in US and becomes largest independent supplier of Dry Ice in US.
2015 – Acquired Thailand based Air Products Industry and Australian industrial gas company Renegade Gas Pty Ltd.
2016 – Acquired Chinese company Jilin OLED Material Tech and US company Sulfa Trap2016 – Agrees to acquire 18 air separation plants and eight other plants of Air Liquide, US. The deal also includes acquisition of three retail stores of Airgas, a subsidiary of Air Liquide2016 – Agrees to acquire Supagas of Australia for US$225 million . After this purchase, TNSC improves its global market share to 7%.2018 – Acquired SAIL Technologies, Inc. to foray into Amino Acid segment.
2018 – Acquired Europe operation of Praxair2019 – Acquired 5 HyCO plants of Linde North America
