Okamura to Introduce Office Products Using GX Steel in Its Own Offices for the First Time, Aiming to Reduce CO2 Emissions by 52 Tons; Promoting Proposals to Client Companies

Okamura Corporation (Headquarters: Yokohama, Kanagawa Prefecture; Representative Director, President and Executive Officer: Masayuki Nakamura) will introduce office products using GX Steel in its own offices (Chiyoda-ku, Tokyo) for the first time in May. The GX Steel used in the introduced products, totaling approximately 26 tons of steel for tables, storage, and private booths, is expected to reduce CO2 emissions by approximately 52 tons*.

GX Steel reflects the greenhouse gas reduction effects of steel manufacturers in specific steel materials. Okamura applies a mass balance method based on ISO 22095 (Chain of Custody) for the use of GX Steel in office products. Since Okamura plans, designs, engineers, and manufactures its office products in-house, it is promoting the use of GX Steel in various products. Moving forward, when establishing or renovating its own offices, Okamura will actively introduce office products using GX Steel. The company will also promote proposals for introduction to client companies.

*Approximately 52 t-CO₂eq

Okamura has set CO2 emission reduction targets and is implementing various initiatives to achieve carbon neutrality by 2050. In product development, to further promote the development of products with reduced environmental impact, the company has formulated the concept of "Carbon Neutral Design," aiming to minimize CO2 emissions throughout the entire product lifecycle, from raw material procurement to manufacturing, sales, use, and disposal, thereby promoting sustainable product development. In procurement based on "Carbon Neutral Design," Okamura is actively working to adopt materials with low CO2 emissions. Regarding the utilization of GX Steel, through the provision of GX Steel "NSCarbolex Neutral" from Nippon Steel Corporation, Okamura is promoting the manufacturing and sales of products using steel that contributes to CO2 emission reduction.

Moving forward, Okamura will continue to promote the development of products with reduced environmental impact throughout the entire product lifecycle and actively work to reduce CO2 emissions.

References

□ Okamura News Release, March 27, 2026

First Introduction of Office Products Using GX Steel to a National Agency

https://www.okamura.co.jp/corporate/news/product/2026/gx_steel.html

□ Okamura News Release, May 26, 2025

Development of Manufacturing and Sales of Office Products Using Green Steel

https://www.okamura.co.jp/corporate/news/product/2025/green_steel.html

—Okamura's Initiatives for the Global Environment—

The Okamura Group aims to achieve carbon neutrality by 2050. As a milestone, it has set a CO2 emission reduction target of 50% by fiscal year 2030 compared to fiscal year 2020. This reduction target has received certification from the international initiative "SBTi (Science Based Targets initiative)" as a science-based target aligned with the Paris Agreement to limit the global average temperature increase to 1.5°C above pre-industrial levels.

In "Initiatives for the Global Environment," one of the Okamura Group's key management themes, "Contribution to climate change issues and realization of carbon neutrality" is identified as a critical challenge. The group is promoting the reduction of environmental impact throughout the entire supply chain in its business activities. Furthermore, it is advancing initiatives from the perspectives of "promoting a circular economy" and "sustainable use and conservation of natural resources."