Nippon Sanso Corporation (Head Office: Shinagawa-ku, Tokyo; President: Kenji Nagata; hereinafter “NSC”) announces that liquefied oxygen—one of its third-party-certified CO₂-free gases, Green Liquid Nitrogen*, produced utilizing environmental attributes derived from renewable energy—has been adopted by Tamatsukuri Co., Ltd. (Head Office: Osaka City, Osaka; President: Shigenobu Mori; hereinafter “Tamatsukuri”), which is engaged in the cutting and processing of steel products. This initiative forms part of the NSC’s sustainability strategy and contributes to reducing environmental impact in manufacturing processes within the steel processing sector. Going forward, NSC will continue to expand its supply system for Green Liquid Nitrogen, an environmentally friendly product, across a wide range of industries, including steel and metal processing. This will contribute to the realization of carbon neutrality across industries.
* Although liquefied oxygen, liquefied nitrogen, and liquefied argon are simultaneously produced through air separation, nitrogen—being the most abundant component in air (approximately 78%) and accounting for the largest share of deman —is used as the representative term, and the entire product group is collectively referred to as Green Liquid Nitrogen.
1. Background of Adoption of Green Liquid Nitrogen
In the steel industry, as the adoption of green steel and efforts to reduce CO₂ emissions across the entire supply chain continue to advance, the importance of reducing environmental impact is increasing, not only in material production, but also in processing stages. Furthermore, in cutting and processing operations, liquefied oxygen is widely used, and reducing CO₂ emissions derived from utilities has emerged as a new challenge. Against this backdrop, as part of its initiatives to reduce environmental impact, Tamatsukuri has adopted liquefied oxygen from the NSC’s Green Liquid Nitrogen product line.
2. Overview of Adoption of Green Liquid Nitrogen
The liquefied oxygen adopted is a product manufactured at the NSC’s air separation unit (ASU) utilizing environmental attributes derived from renewable energy. This adoption is expected to provide Tamatsukuri with several benefits, including (1) reducing CO₂ emissions associated with the use of liquefied oxygen, (2) lowering the environmental impact of steel product processing, and (3) strengthening its capability to address decarbonization across the supply chain. In particular, as demand for environmentally-friendly steel materials increases, reducing CO₂ emissions in processing contributes to enhancing product value.
3. Customer Profile
Tamatsukuri is a steel plate cutting and processing company within the Metal One Group, operating six business locations, ten plants, and two sales offices nationwide. It supplies steel products for a wide range of applications, including construction machinery, industrial machinery, civil engineering and construction, shipbuilding, and plant engineering.
| Company name |
Tamatsukuri Co., Ltd. |
| Established |
October 1949 |
| Head Office |
Nakanoshima Central Tower 11F, 2-2-7 Nakanoshima, Kita-ku, Osaka City, 530-0005,Japan |
| Capital |
JPY 70 million |
| Number of Employees |
356 (as of April 1, 2026) |
| Business Activities |
Sales of primary processed products of ultra-thick and special steel plates |
| Revenue |
JPY 20.6 billion (FY ended March 2025) |
Taiyo Nippon Sanso Corporation
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