News Releases / 2026
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January 14, 2026
Rengo Acquires Additional Shares of Okaji Logistics
Rengo Co., Ltd. announces that it has acquired an additional 17.4% of the issued shares of Okaji Logistics Co., Ltd. (excluding treasury stock), bringing its total ownership interest, including its existing holdings, to 20.0%.
Okaji Logistics has four affiliated companies—Okaji Shigyo Co., Ltd., Okaji Co., Ltd., Shigeta Kogei Shigyo Co., Ltd., and Yoshida Corrugated Board Industrial Co., Ltd. (the five companies are hereinafter collectively referred to as the "Okaji Group")—and, as the core business of the Okaji Group, is engaged in the manufacturing and sales of corrugated board and boxes. The Okaji Group has established manufacturing sites in Wakayama Prefecture, Aichi Prefecture, and Fukuoka Prefecture, and has built a strong customer base.
Going forward, Rengo will strengthen collaboration between the Okaji Group and nearby Rengo Group plants, provide management support to the Okaji Group, and aim to further expand the Rengo Group's corrugated packaging business.Overview of Okaji Logistics Co., Ltd.
Head office location 3-1-10 Yamasaki-cho, Kainan-shi, Wakayama Prefecture Representative Representative Director and President Hisaki Ooka Capital 90 million yen Major shareholder Rengo Co., Ltd. 20%
(Shareholding ratio is calculated excluding treasury stock.)Main business Management of the manufacturing and sales of corrugated board and boxes Number of employees 33 Overview of Okaji Shigyo Co., Ltd.
Head office location 3-1-10 Yamasaki-cho, Kainan-shi, Wakayama Prefecture Plant locations ・ Wakayama Plant : 760-6 Nishihama, Wakayama-shi, Wakayama Prefecture
・ Toyohashi Plant : 4-49 Akemi-cho, Toyohashi-shi, Aichi Prefecture
・ Moji Plant : 3-37 Shinmoji, Moji-ku, Kitakyushu-shi,
Fukuoka PrefectureRepresentative Representative Director and President Hisaki Ooka Capital 24 million yen Shareholder Okaji Logistics Co., Ltd. 100% Main business Manufacturing of corrugated board and boxes Number of employees 138 Overview of Okaji Co., Ltd.
Head office location 760-6 Nishihama, Wakayama-shi, Wakayama Prefecture Office locations ・ Kainan Sales Office : 3-1-10 Yamasaki-cho, Kainan-shi, Wakayama
Prefecture
・ Toyohashi Sales Office : 4-49 Akemi-cho, Toyohashi-shi, Aichi Prefecture
・ Moji Sales Office : 3-37 Shinmoji, Moji-ku, Kitakyushu-shi,
Fukuoka PrefectureRepresentative Representative Director and President Hisaki Ooka Capital 305 million yen Shareholder Okaji Shigyo Co., Ltd. 100% Main business Sales of corrugated board, boxes, and other packaging materials Net sales Approx. 5 billion yen (fiscal year ended December 2024) Number of employees 36 Overview of Shigeta Kogei Shigyo Co., Ltd.
Head office location 22-7 Sakaedani, Wakayama-shi, Wakayama Prefecture Representative Representative Director and President Masanari Shigeta Capital 29 million yen Major shareholder Okaji Shigyo Co., Ltd. 50.9% Main business Manufacturing and sales of folding cartons Net sales Approx. 550 million yen (fiscal year ended August 2025) Number of employees 16 Overview of Yoshida Corrugated Board Industrial Co., Ltd.
Head office location 53-2 Nateichiba, Kinokawa-shi, Wakayama Prefecture Office location 240-1 Kokawa Higashino, Kinokawa-shi, Wakayama Prefecture Representative Representative Director and President Junji Yoshida Capital 25 million yen Major shareholder Okaji Shigyo Co., Ltd. 68% Main business Sales of corrugated boxes Net sales Approx. 300 million yen (fiscal year ended December 2024) Number of employees 8