Sustainability Library
Sustainability Archive
Tokyo Seimitsu issued the “Sustainability Archive 2025”(in PDF format) on December 18, 2025, which compiles the information of its sustainability website as of the end of October 2025.
For the latest information on our sustainability initiatives, please also refer to our website, where updates are disclosed as they become available.
CSR Archive
| 2021年 | CSR Report 2021（5.2MB） |
| 2020年 | CSR Report 2020（5.2MB） |
| 2019年 | CSR Report 2019（3.3MB） |
| 2018年 | CSR Report 2018（15.0MB） |
| 2017年 | CSR Report 2017（6.4MB） |
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