The more than $470 million Angolan plant is supplying diesel at home while exporting heavy fuel oil and naphtha, executives at Gemcorp Capital, which owns 90%, said.
The start-up gives Angola new refining capacity to support domestic fuel availability and cut dependence on imported products despite being a major crude producer.
The Cabinda facility is among the first refineries built in Africa in decades, marking a notable expansion of the continent's downstream oil infrastructure.