Kigali Rwanda's highest buildings, including the 20-storey Kigali City Tower, are located in the CBD, as are the headquarters of the country's largest banks and businesses. Other buildings in the CBD include the upmarket Serena, Marriott and Mille Collines hotels, the University Teaching Hospital of Kigali, the national university's College of Science and Technology, and government buildings such as the National Bank of Rwanda and the Ministry of Finance and Economic Planning. To the south west of the CBD, and also on the Nyarugenge Hill, is the suburb of Nyamirambo. This was the second part of the city to be settled,
African Continental Free Trade Area 8-9 March 2018 the African Union Ministers of Trade approved the draft. At the extraordinary Summit of the Assembly of the African Union on 21 March in Kigali the Agreement establishing the African Continental Free Trade Area was signed, along with the Kigali Declaration and the Protocol of Free Movement. Other countries who signed the Kigali declaration, including South Africa and Namibia, are expected to sign the agreement during the AU summit in July. Negotiations will continue in 2018 with Phase II, including policies of investment, competition and intellectual property rights. On the January 2020 AU Assembly negotiations are envisaged