The National Bank of Ethiopia has issued a directive Directive No FXD/68/2020 effective from November 19,2020 that allows establishment and operation of foreign currency saving account for Residents of Ethiopia, Non-Residents of Ethiopians and Non-Residents of Ethiopian Origin.
You can find the Directive by this link: https://nbebank.com/wp-content/uploads/pdf/directives/forex/fxd-68-2020.pdf