J-Witex Corporation

J-Witex Corporation (ジェイ-ワイテックス株式会社) is a Japanese steel wire manufacturer headquartered in Kaizuka, Osaka. It was established in 2007 through the merger of the steel wire operations of three companies: Kōkoku Kōsen Saku Co., Ltd., Kantō Kōsen Co., Ltd., and Metax Co., Ltd. The company positions itself as a comprehensive steel wire maker and a leading company in the wire industry, with the corporate slogan 'Connecting trust, connecting the future' (信頼をつなぐ、未来をつなぐ). The company manufactures a wide range of wire products. Its galvanized steel wire and stranded wire are used as tension members and drop wires for optical fiber cables in FTTH networks, as precision spring materials under the Delta Wire brand, and as control cable materials where it claims a domestic market share of over 70%. Its steel wire line includes piano wire and hard steel wire for springs, oil-tempered wire for control cables, and blueing wire for communication cable reinforcement. J-Witex also produces wire ropes for construction, civil engineering, machinery, steel, shipbuilding, port, fisheries, forestry, and medical equipment applications, including specialized long-life ropes for ladle cranes and container cranes. Additionally, it offers winding grips (巻付グリップ) used for anchoring and connecting guy wires and messenger wires, as well as for rockfall protection. In 2025, the company began selling a new product called J-e Rope, described as an eco-friendly and sustainable option. J-Witex operates under a mid-term management vision called CCC30 (Change to the Challenging Company: 30%), aiming for technological innovation, global business expansion, and growth in growth sectors and regions. The company emphasizes corporate ethics, legal compliance, safety, disaster prevention, and environmental conservation. Its representative director and president is Hideoki Kimura (木村 英興).

J-Witex Corporation was established in 2007 through the merger of the steel wire businesses of three Japanese companies: Kōkoku Kōsen Saku Co., Ltd., Kantō Kōsen Co., Ltd., and Metax Co., Ltd. The new company combined the accumulated steel wire manufacturing and plating technologies of the three predecessors. Since its founding, J-Witex has positioned itself as a comprehensive steel wire manufacturer and a leading company in the wire industry, supplying a wide range of products to markets in Japan and globally. The company has developed specialized products such as galvanized steel wire for optical fiber cables, precision spring wire under the Delta Wire brand, and control cable materials with a claimed domestic market share of over 70%. It also manufactures various wire ropes and winding grips for infrastructure and industrial applications. In 2022, the company announced a change of representative director and renewed its technology development page and company brochure. In 2025, it began selling J-e Rope, a new eco-friendly product. J-Witex operates under a mid-term management vision called CCC30 (Change to the Challenging Company: 30%), which guides its efforts in technological innovation, global expansion, and growth in key sectors and regions. The company emphasizes corporate ethics, legal compliance, safety, disaster prevention, and environmental conservation as top management priorities.

• 2025

  J-e Rope sales started in January

• 2022

  Change of representative director announced

• 2007

  Company founded through merger of steel wire businesses of Kōkoku Kōsen Saku, Kantō Kōsen, and Metax

Comprehensive steel wire manufacturer and leading company in the wire industry, emphasizing technology, quality, and sustainability.

• Galvanized steel wire

  Used as tension members and drop wires for optical fiber cables in FTTH networks, and as precision spring materials under the Delta Wire brand.

• Galvanized steel stranded wire

  Mainly used as messenger wire for power and communication lines, with excellent non-rotating and non-bending characteristics.

• Steel wire (piano wire, hard steel wire)

  High-quality, high-precision spring materials made from carefully selected materials with thorough quality control.

• Oil-tempered wire

  Used as a key material for control cables, offering excellent straightness and durability.

• Blueing steel wire

  Used for reinforcement of communication cables, with excellent straightness.

• Wire rope

  Used in construction, civil engineering, machinery, steel, shipbuilding, port, fisheries, forestry, and medical equipment applications. Includes long-life ropes for ladle cranes and container cranes, and ultra-flexible ropes.

• Winding grips

  Used for anchoring and connecting guy wires and messenger wires, and for rockfall protection. Color types with weather-resistant resin coating are available.

• J-e Rope

  New eco-friendly and sustainable product developed and sold from January 2025.

1. 1ジェイ-ワイテックス株式会社j-witex.co.jp
2. 2会社情報｜ジェイ-ワイテックス株式会社j-witex.co.jp
3. 3製品情報｜ジェイ-ワイテックス株式会社j-witex.co.jp
4. 4製造工程｜会社情報｜ジェイ-ワイテックス株式会社j-witex.co.jp
5. 5J-Witex Corporation (Japan) - Wikidatawikidata.org