Tungaloy Corporation (Japanese: 株式会社タンガロイ) is an international company that specializes in production and sales of metal cutting tools as well as industrial products. Headquartered in Japan, it was the first company in the country to succeed in developing superhard alloy. Tungaloy is a member of the International Metalworking Companies (IMC), which is owned by Berkshire Hathaway. In November 2011, the company celebrated the opening of its new production facility in Japan; as the Chairman, President, and CEO of Berkshire Hathaway, Warren Buffett took part in the ceremony.

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