Recently, Kosher certification is becoming popular in Japan. Chabad Japan and Kosher Japan are mentioned in several news media. Please check the articles.

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Newsweek　Kosher Sake Pours Into Japan

https://www.newsweek.com/kosher-sake-pours-japan-1553659

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DIAMOND online　京都の緑茶にみる「ユダヤ教の食品認証」、日本でもますます増えそうな理由

This article is about Kosher Japan giving Kosher certification to Japanese Tea companies.

https://diamond.jp/articles/-/262303

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JAPAN TIMES　“Tokyo rabbi gives unconditionally”

https://www.japantimes.co.jp/community/2009/09/19/general/tokyo-rabbi-gives-unconditionally/

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JAPAN TIMES　“Get the latkes out for Hanukkah in Japan”

https://www.japantimes.co.jp/life/2016/12/22/general/get-latkes-hanukkah-japan/