Producer
Toyo Kohan
Japan's second-largest tinplate producer (founded 1934); specializes in tin-free steel (TFS / ECCS), laminated steel, and electrolytic tinplate. Listed on Tokyo Stock Exchange. Unlike Nippon Steel's bulk commodity tinplate, Toyo Kohan focuses on niche high-precision products: easy-open can ends, laminated packaging films on steel substrates, and coated sheets for electronics casings.
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Inputs supplied
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Goods downstream
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Stories
What else they do
Business segments
The company's full revenue map, where this supply-chain role fits within their broader business.
Tinplate & Tin-Free Steel (TFS/ECCS)
45%Laminated Steel for Electronics
30%Specialty Coated Steel
15%Other Steel Products
10%
Intelligence
What's known
Sourced claims about this company's role in supply chains, chokepoints, concentration, incidents, dual-use connections.
Did you know2024
Toyo Kohan produces steel for two supply chains that rarely appear in the same analysis: (1) food packaging — tin-free steel for food cans and easy-open ends, the metal keeping sardines, pet food, and instant coffee sealed on supermarket shelves; and (2) consumer electronics — polymer-laminated steel for hard disk drive (HDD) casings and laptop computer shells, the precision-coated metal protecting the disk drives storing digital data. The same Yamaguchi Prefecture steel company that produces the TFS metal in a canned tuna fish also produces the laminated steel casing of the hard drive in a data center or laptop. Food preservation steel and digital storage hardware steel share a Toyo Kohan thin-gauge steel processing platform — a connection that food industry procurement and electronics supply chain analysts each miss because they track different material codes and regulatory frameworks.
Toyo Kohan Co., Ltd. ↗Origin2023
Toyo Kohan Co., Ltd. was founded in 1934 in Yamaguchi Prefecture, Japan — the same year that Thyssenkrupp Rasselstein independently invented electrolytic tinning in Germany. Japan's tinplate industry developed to serve its canned food export market (Japanese canned foods, particularly marine products, were significant export commodities in the 1930s-40s). Toyo Kohan's differentiation from Japan's primary tinplate producers (Nippon Steel) lay in specialty and precision products: tin-free steel (chrome-electrolytic chromium-coated steel, ECCS) for food packaging that doesn't require tin; easy-open can ends with score lines requiring precise metallurgical control; and polymer-laminated steel products where plastic films are bonded to steel substrate for electronics applications. The company's specialty precision positioning reflects Japan's broader industrial strategy of competing on quality and precision rather than commodity volume.
Toyo Kohan Co., Ltd. ↗