Oil major Chevron said the Angola LNG export project has started recommissioning.
The project was stalled after a number of technical faults before a rupture on the flare line forced a shutdown almost two years ago.
Traders had previously said they expected exports from the plant to resume later this year.
Chevron has a 36.4% share in the plant, while Angolan state oil firm Sonangol has 22.8%.
Other stakeholders include Total, BP and ENI