TOKUYAMA KAIRIKU UNSO
A Japanese logistics and shipping company based in Shunan, Yamaguchi, operating as a wholly owned subsidiary of Tokuyama Corporation.
Last updated September 29, 2026
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Overview
Tokuyama Kairiku Unso K.K. is a Japanese transport and logistics company headquartered in Shunan, Yamaguchi Prefecture. It was established on September 1, 1950, and operates as a wholly owned subsidiary of Tokuyama Corporation, a major Japanese chemical and materials manufacturer. The company's core business centers on marine and land transportation, using Tokuyama's Tokuyama-Shunan port as a key base, and it also provides ship agency services. The company owns three cement tankers: Tokukei Maru, Tokuyama 21st Century, and Tokuyama Maru. These vessels support the transport of cement and related materials, reflecting the company's close integration with Tokuyama's industrial operations. In addition to freight transport, Tokuyama Kairiku Unso engages in logistics optimization for the Tokuyama Group, aiming to enhance the group's overall supply chain. In 2020, Tokuyama Corporation announced a logistics integration plan effective October 1, 2020, under which Tokuyama Logistics was absorbed into Tokuyama Kairiku Unso (then named Tokuyama Kairiku Unso K.K. under its former name, Tokuyama Kairiku Unso). The surviving entity was Tokuyama Kairiku Unso, and the merger was intended to realize logistics optimization within the Tokuyama Group. On January 1, 2021, the company changed its trade name from Tokuyama Kairiku Unso K.K. to Tokuyama Kairiku Unso K.K. (トクヤマ海陸運送株式会社). The company remains active, with recent activities including employee volunteer participation in coastal cleanup efforts and exhibiting at local events. It continues to serve as a key logistics arm of the Tokuyama Group, handling marine and land transport, ship agency operations, and related services.
History
Tokuyama Kairiku Unso K.K. was established on September 1, 1950. From its base at the Tokuyama-Shunan port in Yamaguchi Prefecture, the company developed its business around marine and land transportation, and also provided ship agency services. It became a wholly owned subsidiary of Tokuyama Corporation, a major chemical manufacturer. For decades, the company operated as a logistics provider within the Tokuyama Group, owning and operating cement tankers to support the group's cement and chemical businesses. Its fleet included three self-owned cement tankers: Tokukei Maru, Tokuyama 21st Century, and Tokuyama Maru. On May 20, 2020, Tokuyama Corporation announced that effective October 1, 2020, Tokuyama Kairiku Unso (then named Tokuyama Kairiku Unso K.K.) would be the surviving company in a merger with Tokuyama Logistics, integrating their logistics operations. The merger was completed on October 1, 2020, with Tokuyama Logistics absorbed into Tokuyama Kairiku Unso. The integration aimed to optimize logistics within the Tokuyama Group and enhance the group's overall supply chain. On January 1, 2021, the company changed its trade name from Tokuyama Kairiku Unso K.K. (徳山海陸運送株式会社) to Tokuyama Kairiku Unso K.K. (トクヤマ海陸運送株式会社). The company continues to operate as an active logistics subsidiary, engaging in community activities and industry events.
Established
Absorbed Tokuyama Logistics through merger
Changed trade name to Tokuyama Kairiku Unso K.K.
Products and positioning
A logistics and marine transport specialist within the Tokuyama Group, focused on optimizing group supply chains.
Marine transportation
Land transportation
Ship agency services
Cement tankers (Tokukei Maru, Tokuyama 21st Century, Tokuyama Maru)
Sources3 sources
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