The Heineken subsidiary Nigerian Breweries is to open a US$311m brewery in the south-eastern city of Enugu on October 24.

The opening will be the final piece in a five year investment plan that has cost US$545m.

"These projects were designed to guarantee us the volumes needed to meet the challenges posed by the demand growth in the brewed products market," said Nigerian Breweries spokesman Larry Agose.

The Enugu brewery has been working in part since March, but its current 1.5m hl production levels will double once it is fully working.

This brewery will bring Nigerian Breweries' total production to 10m hl.