Irrigation Minister Hossam Moghazi said delegations from the eastern Nile countries, namely Egypt, Sudan and Ethiopia held the meeting of the tripartite national technical committee on Thursday and Friday in the Ethiopian capital Addis Ababa.
The minister said the panel agreed to send suggestions and instructions to the Dutch and French consultant firms to wrap up their joint work.
The September 5 deadline is set by the technical committee on the dam to the two international consultancy firms to hand over the amended offer on the dam.
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.