NEWS/RELEASE

Press Release; “Tanaka Precious Metals Exclusively Supply Ruthenium Dye for Dye-Sensitized Solar Cells”

Tanaka Holdings Co., Ltd. (a company of Tanaka Precious Metals, Head office: Marunouchi, Chiyoda-ku, Tokyo; President & CEO: President Hideya Okamoto)
today announced that Tanaka Kikinzoku Kogyo K.K. (Head office: Marunouchi, Chiyoda-ku, Tokyo; President & CEO: President Hideya Okamoto),
which operates the Tanaka Precious Metals’ manufacturing business, will begin exclusively providing the CYC-B11 ruthenium complex dye with a conversion efficiency over 11.4% -one of the world’s highest level for dye-sensitized solar cells.

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