On June 22, Sumitomo Metal Mining and Mitsubishi Gas Chemical said their joint venture Granopt will increase production capacity for its Faraday rotator used in optical communications threefold by FY27 versus FY25.

2026-06-22

On June 22, Sumitomo Metal Mining and Mitsubishi Gas Chemical said their joint venture Granopt will increase production capacity for its Faraday rotator used in optical communications threefold by FY27 versus FY25.