Sustainability
SINANEN HOLDINGS Group
- BtoC Business(Retail/Wholesale Energy＆Related Business)
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MELIFE-WEST Co., LTD.
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MELIFE Co., Ltd.
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MELIFE-EAST Co., LTD.
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Hidaka Toshi Gas Co., Ltd.
- BtoB Business(Energy Solution Business)
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SINANEN CO., LTD.