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Mukah aluminium plant

Aluminium Smelter in Malaysia. Approximate location 2.96852, 112.37314.

Aluminium SmelterMalaysiaCO₂ reported

Mukah aluminium plant is an aluminium smelter in Malaysia with a reported capacity of 120,000 t of alumina/aluminum. It smelts alumina into primary aluminium by high-current electrolysis. It is operated by Press Metal Sarawak . By capacity it ranks #2 of 2 aluminium smelters tracked in Malaysia. It emits about 232,015 tonnes of CO₂e per year (Climate TRACE) — roughly the tailpipe emissions of 54,083 cars. Its CO₂ per unit of capacity is about 7% below the median aluminium smelter.

120,000t of alumina/aluminum
232,015t CO₂e / yr (Climate TRACE)
#34CO₂ rank in Malaysia
1.93t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-3673106.

在上下文中:该设施如何比较

在120,000 t of alumina/aluminum时,Mukah aluminium plant是Malaysia中aluminium smelter的中位数低于 960,000 t of alumina/aluminum。 子部门:aluminum。 作为aluminium smelter,它需要强烈的工艺热量(通常600–900°C)来进行其核心工业操作——必须通过锅炉、炉或直接燃烧供应的热量,通过未隔热的容器和管道的损失代表浪费的燃料。可拆卸模块化绝缘可以将这些损失减少80-96%,将表面冷却至≤45°C,投资回收期通常不到2年。 铝冶炼厂使用大电流将氧化铝精炼成900°C以上的熔融铝,热金属必须通过坩埚和铸造设备流动。

容量和CO₂强度比较从Climate TRACE工业设施数据计算得出;部门角色基于工程参考。

What 232,015 t CO₂e a year looks like

This facility's reported annual CO₂e in the everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

54,083cars driven for a year
30,258homes' annual energy use
3,866,917tree seedlings grown 10 years

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Capacity vs largest aluminium smelters in Malaysia

Samalaju aluminium plant: 960,000 t of alumina/aluminum960kSamalaju a…Mukah aluminium plant: 120,000 t of alumina/aluminum120kMukah alum…

Reported capacity (t of alumina/aluminum), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by Press Metal Sarawak .

Local climate

Mukah aluminium plant sits in a tropical rainforest climate zone (Köppen Af), at 3.0°N in the northern hemisphere.

~26°Ctypical annual mean
~27°Ctypical warm-season
Tropical rainforest: hot and humid year-round with little seasonal variation

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

How it compares & nearby sites

The #2 largest of 2 aluminium smelters in Malaysia by reported capacity.

Nearby industrial sites

Location

Coordinates 2.96852, 112.37314. View on OpenStreetMap.

Heat loss & insulation profile

A aluminium smelter like this runs hot equipment that sheds heat continuously: alumina calciner, casthouse furnaces, hot ducting (electrolysis itself is electric) (surface/process temperatures around 150–1,000 °C). These surfaces lose energy to the air year-round; removable modular insulation cuts that loss, brings outer surfaces to ≤45 °C, and unclips for inspection.

electrolysis is mostly electricity (Scope 2) + anode process; on-site combustion small - insulation mainly relevant to alumina refining/casthouse.

Indicative recoverable energy

On an already-insulated site (pipes & valves in cladding / jackets), closing the remaining gaps, flanges and damaged sections and switching to removable covers indicatively recovers about 1,900 MWh/yr (≈ 380 t CO₂/yr) — scaled to this site's reported CO₂ within its sector. Bare or damaged surfaces recover several times more.

See Inzonex insulation → Estimate your site →

Indicative, not a measurement. Conservative floor for an already-insulated plant; a TIPCHECK on-site audit gives a measured figure. Industry context: EiiF TIPCHECK — industrial insulation can save ~14 Mtoe/yr in EU, payback typically <2 years.

Safety & the no-regret first step

Bare hot surfaces here exceed the touch-safe limit (EN ISO 13732-1); insulation to ≤45 °C is a worker-safety and compliance win. And before electrification, fuel-switching or CCS, eliminating surface heat loss is the cheapest, fastest, lowest-risk step — audit the bare spots first, rip-and-replace later.

External climate finance your country can access

Domestic energy-efficiency grants are limited here; industrial decarbonisation is mainly funded externally:

CBAM. Exporters of cement, steel, aluminium, fertiliser, hydrogen and electricity to the EU face the Carbon Border Adjustment Mechanism — cutting embedded emissions (efficiency + insulation) lowers the levy.

Routed via national development banks / accredited entities — not a direct factory grant. Verified 2026.

Frequently asked questions

What type of facility is Mukah aluminium plant?

Mukah aluminium plant is a aluminium smelter in Malaysia. It smelts alumina into primary aluminium by high-current electrolysis.

What is the capacity of Mukah aluminium plant?

Mukah aluminium plant has a reported capacity of 120,000 t of alumina/aluminum.

How much CO₂ does Mukah aluminium plant emit?

Mukah aluminium plant emits about 232,015 tonnes of CO₂e per year (Climate TRACE) — roughly the tailpipe emissions of 54,083 cars. That ranks #34 among tracked facilities in Malaysia.

Where is Mukah aluminium plant located?

Mukah aluminium plant is in Malaysia, near coordinates 2.96852, 112.37314.

Who operates Mukah aluminium plant?

Mukah aluminium plant is operated by Press Metal Sarawak .

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