Furthermore, based on this result, they received assistance from the government and the army, and established Iwataki Smeltery, a smelting facility exclusively for nickel, which was only 11 kilometers away from Oeyama Mine in the former Yoshizu village, Yosa County (now Miyazu City, Kyoto Prefecture and Iwataki, Yosano-cho).
さらにこの結果に基づき、政府と陸軍の援助を受け、大江山鉱山から11キロしか離れていない与謝郡吉津村（当時。現在の京都府宮津市と与謝野町岩滝）に専用のニッケル製錬施設、岩滝製錬所を建設することになった。