We put the sumitomo electric group in the 2017's CSR activity summary form, with "CSR report of 2018" title.

We put the sumitomo electric group in the 2019's CSR activity summary form, with "CSR report of 2020" title.

We put the sumitomo electric group in the 2018's CSR activity summary form, with "CSR report of 2019" title.

We put the sumitomo electric group in the 2016's CSR activity summary form, with "CSR report of 2017" title.

We put the sumitomo electric group in the 2015's CSR activity summary form, with "CSR report of 2016" title.

We put the sumitomo electric group in the 2014's CSR activity summary form, with "CSR report of 2015" title.

We put the sumitomo electric group in the 2013's CSR activity summary form, with "SEI CSR report of 2014" title.