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Lao Cai Cast Iron and Steel Tang Long

operating

BF–BOF Integrated route · Tang Long Town, Asia Pacific, Vietnam

GEM wiki

Lao Cai Cast Iron and Steel Tang Long makes steel by the integrated route: iron ore is smelted into liquid hot metal in a blast furnace, then refined into crude steel in a basic oxygen furnace. The liquid steel is solidified into semi-finished shapes by continuous casting. The plant has a crude steel capacity of 500 thousand tonnes per year. Its main products are steel ingots, cast iron.

Process Route

BFBOF

Timeline

Announced2004
Construction2011
Operating2014

Emissions

2025

0.74 Mt CO₂e

1.90 t CO₂e per tonne of steel

Typical BF-BOF route: 1.8–2.0 t/t

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

Capacity (ttpa)

Crude Steel

500

BOF

500

Blast Furnace

500

Iron Units

BF
unknown BF (1)operating
500 ttpa500 m³wiki

Steel Units

BOF
unknown BOF (1)operating
500 ttpawiki

Inputs & Energy

Iron ore Quy Xa Mine (Van Ban)

Steel Products

Steel ingots, cast iron

Ownership

Owner Lao Cai Cast Iron and Steel

Parent Kunming Iron & Steel Holding Co Ltd; Laocai Mineral Exploitation and Processing JSC; unknown; Viet Nam Steel Corp

Workforce 1,000 employees

State ownership Partial

Country Context

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

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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.