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KISCO / Korea Iron & Steel: EAF billets and reinforcement steel

Public official-source review (2026-10-11); works-specific approvals require re-verification

Last verified:

KISCO is a Korean EAF steelmaker and rebar producer, distinct from similarly named overseas entities.

At a glanceDetail
CountrySouth Korea
ProducerKorea Iron & Steel (KISCO)
Main focusEAF billets, reinforcing bar, specialist reinforcement grades
Production identityChangwon; verify works-specific product and test coverage
Last verified2026-10-11

Identity and company background

KISCO traces its history to 1957 and describes electric-arc-furnace production, billets and hot-rolled deformed reinforcing bar. The company lists KS D 3504 rebar grades and some ASTM A615 products, and reports annual billet production capability of 1.2 Mt. This does not mean it is currently a heavy plate or offshore beams producer. Historical references to former plate production are not current product availability.

Products and manufacturing footprint

Primary portfolio: EAF billets, reinforcing bar, specialist reinforcement grades.

Manufacturer/site check: Changwon; verify works-specific product and test coverage. A group marketing brochure may aggregate multiple sites, processes or affiliates; it is not a substitute for a works-specific production list.

Certifications and project approvals

Do not infer a current works-specific API, ISO, EN/CE, class-society or end-customer AVL approval from an historic brochure or another subsidiary's certificate. Request valid documents that identify the legal entity, physical works, specific product, grades, diameter/thickness range and expiration date. Where no such current scope was independently corroborated, this article makes no approval claim.

Procurement takeaway

Buyers should distinguish actual rolling and melting origin, national reinforcement standard, weldability/seismic designation, bar diameter, testing and traceability. Do not apply EN 10025 structural-section assumptions to concrete reinforcement.

What to reverify before an RFQ or PO

  • Exact legal manufacturer, works location and MTC issuer.
  • Current parent/subsidiary relationship, particularly after restructuring.
  • Product grade, dimensional standard, process route and size availability.
  • Manufacturing-site certification, license number, approved thickness/size and validity dates.
  • End-customer and EPC approved-vendor status for the specific project.
  • Seller/trader versus producer; traceable heat and coil/plate origin.

References and verification sources

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KISCO / Korea Iron & Steel: EAF billets and reinforcement steel

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