State-owned rail companies from Botswana and South Africa are seeking funding for a three-billion pula ($230-million) railway line between the two countries to transport commodities including coal. The Mmamabula-Lephalale link will run 113 km and have a capacity of 24-million tons a year. It will connect to existing routes to South Africa’s Richards Bay and the Maputo port in Mozambique — both key export terminals for bulk minerals.