Onne (Port Harcourt) Fertilizer Complex — Nigeria

Onne (Port Harcourt) Fertilizer Complex is a chemical plant in Nigeria. Its listed capacity is 730,000 t of chemical. Chemical plants produce a wide range of industrial and specialty chemicals, many requiring precise temperature control and sustained heat input for reactions and separations. It is operated by Notore Chemical Industries PLC. By capacity it ranks #1 among 3 chemical plants in Nigeria. It emits about 1,643,014 t CO₂e a year from Climate TRACE. That is 5.0% of the CO₂e from the 25 facilities in Nigeria that have an emissions figure in IndustryAtlas. Its CO₂ per unit of capacity is 56% above the national median for this sector.

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-45257157.

In context: how this facility compares

At 730,000 t of chemical, Onne (Port Harcourt) Fertilizer Complex is around the median chemical plant in Nigeria (656,304 t of chemical). Subsector: chemicals. As chemical plant, it requires high process heat (typically 100–500°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Chemical plants produce a wide range of industrial and specialty chemicals, many requiring precise temperature control and sustained heat input for reactions and separations.

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

What 1,643,014 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:

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

Capacity vs largest chemical plants in Nigeria

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

Operator

Operated by Notore Chemical Industries PLC.

Local climate

Onne (Port Harcourt) Fertilizer Complex sits in a tropical monsoon climate zone (Köppen Am), at 4.8°N in the northern hemisphere.

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

Site climate & environmental severity

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

In this site’s local climate, a bare 150 °C surface sheds about 1236 W/m² to ambient — roughly 0.95× 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 #1 largest of 3 chemical plants in Nigeria by listed capacity (Climate TRACE).

Nearby industrial sites

• NGA-Port Harcourt_methanol · Chemical Plant · 182,360 t CO₂
• NGA-Obio/Akpor_methanol · Chemical Plant · 219,041 t CO₂
• PHRC Port Harcourt Refinery · Refinery · 185,439 t CO₂
• Port Harcourt Fertilizer Complex · Chemical Plant · 3,150,986 t CO₂
• Indorama Eleme Petrochemical, Port Harcourt · Petrochemical · 414,464 t CO₂
• Aradel Modular Refinery · Refinery · 48,269 t CO₂

Location

Coordinates 4.77449, 7.01254. View on OpenStreetMap.

Frequently asked questions