Ray Nkonyeni Cement Plant is a cement plant in South Africa. Its listed capacity is 1,480,000 t of cement. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length. It is operated by Natal Portland Cement Company Pty Ltd. By capacity it ranks #3 among 8 cement plants in South Africa. It emits about 630,424 t CO₂e a year from Climate TRACE. That is 3.4% of the CO₂e from the 24 facilities in South Africa that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 18% above the national median for this sector.

1,480,000t of cement
630,424t CO₂e / yr (Climate TRACE)
#12CO₂ rank in South Africa
0.43t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-32439415.

Data status

Known source data

FacilityRay Nkonyeni Cement Plant Climate TRACE
CountrySouth Africa Climate TRACE
Coordinates-30.67523, 30.34639 Climate TRACE
Sector / subsectorcement Climate TRACE
Reported capacity1,480,000 t of cement Climate TRACE
Owner / operatorNatal Portland Cement Company Pty Ltd Climate TRACE
Modelled CO₂e630,424 t/yr Climate TRACE

Calculated from the dataset

South Africa rank#12 of 24 · top 50.0% calculated
Global cement rank#915 of 2113 · top 43.3% calculated
Climate contextderived from coordinates calculated

Not available

Fuel typeNot available not in dataset
Thermal capacity (MW)Not available not in dataset

Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.

Similar facilities by modelled emissions

Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.

Operating power plants within 50 km

PowerAtlas operating assets, ordered by great-circle distance from published coordinates.

In context: how this facility compares

At 1,480,000 t of cement, Ray Nkonyeni Cement Plant is around the median cement plant in South Africa (1,300,000 t of cement). Subsector: cement. As cement plant, it requires high process heat (typically 800–1400°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 630,424 t CO₂e a year looks like

This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

3.5krailcars of coal burned
147kgasoline cars driven for a year
630kacres of US forest absorbing CO₂ for a year

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

Carbon cost and Scope 1 emissions

At its reported 630k t CO₂e/yr (Scope 1), Ray Nkonyeni Cement Plant carries no domestic carbon price — and as a CBAM-covered product, its 630k t at the EU CBAM rate (€75/t) is €47.5M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).

630k t CO₂e / yrScope 1 emissions
€47.5M/yrCBAM exposure on EU exports

Carbon price: EU CBAM €75/t · EU ETS €85/t, September 10, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Indicative carbon value, not the cash bill — free allocation applies; not compliance advice.

Capacity vs largest cement plants in South Africa

Lichtenburg Cement Plant: 2,400,000 t of cement2.4MLichtenbur…Slurry Cement Plant: 1,900,000 t of cement1.9MSlurry Cem…Ray Nkonyeni Cement Plant: 1,480,000 t of cement1.5MRay Nkonye…Sephaku Ditsobotla Cement Plant: 1,300,000 t of cement1.3MSephaku Di…Delportshoop Cement Plant: 1,250,000 t of cement1.2MDelportsho…Lime Acres Cement Plant: 947,368 t of cement947kLime Acres…De Hoek Cement Plant: 880,000 t of cement880kDe Hoek Ce…Riebeeck Cement Plant: 530,000 t of cement530kRiebeeck C…

Listed capacity (t of cement), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by Natal Portland Cement Company Pty Ltd.

Local climate

Ray Nkonyeni Cement Plant sits in a humid subtropical climate zone (Köppen Cfa), at 30.7°S in the southern hemisphere.

~18°Ctypical annual mean
~27°Ctypical warm-season
Humid subtropical: hot summers and mild winters

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

Site climate & environmental severity

This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
43/100environmental-severity index
6.9°Cseasonal temperature swing
39 kmdistance to coast
Very highCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1292 W/m² to ambient — roughly 0.99× the loss at a 20 °C reference. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby sites

The #3 largest of 8 cement plants in South Africa by listed capacity (Climate TRACE).

Nearby industrial sites

Location

Coordinates -30.67523, 30.34639. View on OpenStreetMap.

Frequently asked questions

What type of facility is Ray Nkonyeni Cement Plant?

Ray Nkonyeni Cement Plant is a cement plant in South Africa. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.

What capacity is listed for Ray Nkonyeni Cement Plant?

The open dataset lists 1,480,000 t of cement of capacity for Ray Nkonyeni Cement Plant.

How much CO₂ does Ray Nkonyeni Cement Plant emit?

The page uses about 630,424 t CO₂e/year from the open dataset It ranks #12 among facilities in South Africa by estimated CO₂.

Where is Ray Nkonyeni Cement Plant located?

Ray Nkonyeni Cement Plant is in South Africa at approximately -30.67523, 30.34639.

Who operates Ray Nkonyeni Cement Plant?

The operator recorded in the open dataset is Natal Portland Cement Company Pty Ltd.

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