International Breweries PLC is located in Onitsha, a commercial city in Anambra State, Nigeria.  Commissioned on 30 August 2012, the Onitsha brewery has an annual capacity of 2.7 million hectolitres.

Its brands which are widely sold in the South East and neighbouring regions include: Hero Lager, Castle Milk Stout (6%ABV), Grand Malt (non-alcoholic), Beta Malt (non-alcoholic).