Producer
Kubota Corporation (Iron Pipe Division)
Two Japan plants: Hanshin (Hyogo) and Keiyo (Chiba); Keiyo is only global facility mass-producing 9m-long DIP; JV with TATA Metaliks in India
1
Inputs supplied
1
Goods downstream
2
Facilities
0
Stories
What they make
1 input Kubota Corporation (Iron Pipe Division) supplies
Click an input to see every good that depends on it, every country that produces it, and every other company in the supply chain.
Where it shows up
Goods downstream
Essential goods that depend on something Kubota Corporation (Iron Pipe Division) makes — pick one to see the full supply chain.
Where they make it
2 facilities
Kubota Hanshin Plant - Amagasaki, Hyogo Japan →
JPSecond major Japanese DIP production facility; serves domestic and export markets
Kubota Keiyo Plant - Ichihara, Chiba Japan →
JPONLY global facility mass-producing 9m-long ductile iron pipe; 110,000+ tpa; specialized capability not replicated elsewhere
What else they do
Business segments
The company's full revenue map — where this supply-chain role fits within their broader business.
Iron Pipe Division (DIP & Fittings)
15%Farm & Industrial Machinery (Core Business)
55%Water Treatment Systems
15%Other Environmental & Building Materials
15%
Intelligence
What's known
Sourced claims about this company's role in supply chains — chokepoints, concentration, incidents, dual-use connections.
Origin2023
Kubota Corporation was founded in 1890 in Osaka by Gonshiro Kubota — not as a tractor company, but as a cast iron pipe manufacturer. The company's first product was cast iron irrigation pipe, and pipe manufacturing was Kubota's primary business through the Meiji and Taisho eras. Agricultural machinery came later: Kubota began making cast iron rice reaping machines and water pumps as natural extensions of its iron foundry expertise, and the tractor business grew from this agricultural equipment diversification. By the postwar era, Kubota's tractor business had grown to overshadow its pipe division in revenue and global recognition — Kubota tractors are now sold in 130+ countries while Kubota pipe remains primarily a Japanese market product with some export. The result is a company that most global consumers know as a tractor brand whose corporate origin was water pipe manufacturing. Kubota's Keiyo facility in Chiba Prefecture is the only factory in the world that mass-produces 9-meter-length ductile iron pipe — a specialized product for large-diameter water transmission mains where fewer joints means fewer potential leak points. The 1890 Osaka cast iron pipe company that became famous for tractors maintains its founding product line in a 134-year demonstration that original industrial DNA persists alongside dramatic business model evolution.
Kubota Corporation ↗Did you know2023
Kubota Corporation simultaneously supplies the agricultural supply chain (Kubota tractors and combines cultivate rice, wheat, and corn fields across Asia, North America, and Europe) AND the water infrastructure supply chain (Kubota DIP carries drinking water to Japanese and international cities) AND the wastewater treatment supply chain (Kubota water treatment systems treat sewage). The same company whose orange tractors are in every American farm implement dealer also makes the underground ductile iron pipe that distributes municipal water and operates wastewater treatment plants that make the agricultural water cycle work. A Kubota tractor plows a rice field; that rice is irrigated through a Kubota-piped irrigation system; the irrigation runoff is treated by a Kubota wastewater system before returning to the watershed. In Japan, where Kubota has the deepest product penetration, the agricultural supply chain and the water infrastructure supply chain are served by the same Osaka foundry company simultaneously.
Kubota Corporation ↗