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What smart money is saying about The Japan Steel Works, Ltd.Japan flag

5631.T · Industrials · Industrial - Machinery · Market cap $3.65B

2 funds in our archive have pitched The Japan Steel Works, Ltd. — most recently Baron Emerging Markets Fund in March 2026.

Company profile

The Japan Steel Works, Ltd., established in Tokyo, Japan in 1907, is a global manufacturer and distributor of steel and diverse machinery. Its operations are organized into Industrial Machinery Products, Steel and Energy Products, and Other Businesses. The company provides critical components for power generation, including monoblock rotor shafts, nuclear reactor shell flanges, and turbine castings for thermal power plants. It also supplies advanced metallic materials like clad steel, high-alloy and stainless steels, and Ni-based alloys. For heavy industries, JSW manufactures forged steel rolls, various forged and cast steel items, steel plates, and pressure vessels for chemical, petrochemical, and general industrial applications, alongside maintenance and inspection services for these vessels. In the plastics sector, JSW offers a range of production equipment such as polyolefin pelletizers, twin-screw extruders, film and sheet production lines, and spinning extruders, in addition to injection and blow molding machinery. Its portfolio further extends to specialized systems like excimer laser annealing and laser lift-off equipment, rolling stock components, and presses/laminators. A significant part of JSW's activities involves the design, production, and upkeep of defense armaments, spanning from firing systems to missile launchers, complemented by research and development in this field. The company also contributes to sustainable energy infrastructure by producing high-pressure hydrogen storage tanks for refueling stations serving fuel cell vehicles. Complementary services include maintenance concierge programs, equipment retrofitting, and specialized training. JSW additionally offers deposition and crystal processing equipment, as well as wind power generation systems.

Fund coverage · 2 theses

  • Baron Emerging Markets Fund
    March 2026

    The Japan Steel Works, Ltd. is a diversified industrial supplier positioned to benefit from power generation, nuclear, defense, and machinery growth with strong earnings prospects.

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  • Baron International Growth Fund
    March 2026

    The Japan Steel Works is a diversified industrial equipment maker with defense, nuclear, and power-related growth tailwinds.

    Read the full thesis

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