AFRICA BUSINESS-Foreign brewers battle for Ethiopia's beer drinkers

* Entry of drinks firms helping to transform business landscape

* Competition has driven down beer prices, improved supply

* Government keeps foreigners away from telecoms, banks (Updates with new details from Diageo)

By Aaron Maasho and Edmund Blair

ADDIS ABABA, April 1 (Reuters) - International brewers are helping transform Ethiopia's business landscape as it slowly sells the assets of the former communist state and opens up to foreigners drawn to one of Africa's fastest growing economies.

Heineken, Diageo and privately-owned Dutch brewer Bavaria, have snapped up state breweries or built new ones in the past four years, introducing new beverages and increasing competition for St George, Ethiopia's oldest beer brand, that was itself bought by France's Castel Group in 1998.

The east African nation that once could not feed itself now draws investors keen to profit from the increasing prosperity of its 96 million people.

"We recognise the huge potential in Ethiopia," Diageo said in a statement e-mailed to Reuters. It bought state-owned Meta Abo brewery for $225 million in 2012 and has tripled brewing capacity and invested in new brands. It launched Zemen Beer in December and non-alcoholic Malta Guiness in August 2013.

Heineken bought state-owned Bedele and Harar Breweries for a combined $163 million in 2011, introducing the Walia beer, which bar staff in Addis Ababa say is catching up St George.

A few years ago, small bars struggled to get hold of crates of St George as they were bought up by hotels or bigger restaurants but Castel has increased brewing capacity, meaning they are now readily available.

Prices have dropped as a result of the extra competition and supply. A St George bottle sells for 15 birr ($0.75) at Mery's Pub, down from 18 birr in December.

"We have variety now for our customers -- and more supply," said Meron Girma, who runs the pub in a small shack with a corrugated iron roof next to the capital's increasingly affluent Bole Medhane Alem district.

Per capita income is still below Sub-Saharan Africa's average at just $470 a year, according to World Bank figures for 2013 but annual economic growth rates are 8 to 9 percent and the political outlook is stable. The Ethiopian People's Revolutionary Democratic Front (EPRDF), in power for a quarter of century, is expected to sweep a May election.

"Ethiopia has started to attract high quality foreign direct investment," Abraham Tekeste, state minister for finance and development, told Reuters.

The IMF estimates foreign direct investment will reach $1.8 billion in fiscal year 2014/15 and $4.3 billion in 2018/19.