The consulting firm which will complete studies on Ethiopia's Renaissance Dam will be announced in mid-March, Irrigation Minister Hossam Moghazi said on Thursday.
He said four companies were offering to conduct the study.
Moghazi said the announcement of the winner will be made in Ethiopia in a press conference after the Egyptian Economic Development Conference (EEDC) due to be held on 13-15 March.
Ethiopia is the source of around 85% of Egypt's Nile's water, mainly through rainfall in its highlands. Over 90% of Egyptians rely on water from the Nile's flows.
Egypt fears that the dlrs 4.6 billion hydropower plant, which Ethiopia is building on the Blue Nile, will diminish its share of the river's water, arguing its historic water rights must be maintained.