The Southern African Development Community real-time gross settlement system (SADC-RTGS) on Monday formally added Angola’s kwanza as a settlement currency, marking its first expansion beyond the South African rand since the platform launched in 2013. The move is aimed at cutting the costs and delays that come from converting intraregional trade into U.S. dollars and improving settlement efficiency. The system processed about $3.77 billion of trade and interbank cross-border transactions across its 15 member countries in 2025.