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Acerinox Columbus Stainless

operating

EAF route · Middelburg, Africa, South Africa

GEM wiki

Acerinox Columbus Stainless is a scrap-based steel plant: an electric arc furnace melts recycled steel scrap into new crude steel. The liquid steel is solidified into semi-finished shapes by continuous casting. The plant has a crude steel capacity of 850 thousand tonnes per year. Its main products are sheet, plate, coil, slab.

Process Route

EAF

Timeline

Operating since 1966

Emissions

2025

0.083 Mt CO₂e

0.14 t CO₂e per tonne of steel

Typical EAF route: 0.5–0.7 t/t

Modelled estimate (Climate TRACE), not reported data. Methodology

Capacity (ttpa)

Crude Steel

850

EAF

850

Production

Crude steelproduction, GEM-compiled (Global Iron & Steel Tracker). Dashed line shows nominal capacity.

Steel Units

EAF
unknown EAF (1)operating
850 ttpa100 twiki

Steel Products

sheet, plate, coil, slab

Ownership

Owner Columbus Stainless (Pty) Ltd

Parent Acerinox SA [76.0%]; Industrial Development Corporation of South Africa Ltd [24.0%]

Workforce 1,319 employees

State ownership Partial

Country Context

South Africa crude steel production (USGS). Plant line shows nominal capacity, not output.

Learn the processes this plant uses

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Plant data sourced from the Global Iron & Steel Tracker (March 2026), Global Energy Monitor. Licensed under CC BY 4.0.

Production data: USGS Minerals Yearbook — Raw Steel: World Production by Country or Locality (2019 edition; 2022 and 2023 early release tables). U.S. Geological Survey, public domain. EAF/BOF splits: USGS Minerals Yearbook (2023 estimates).

Facility emissions estimates from Climate TRACE. Licensed under CC BY 4.0.