Australian and American interests are examining the project and the Development Bank of Southern Africa (DBSA) may help with finance. The United States Trade and Development Agency (USTDA), another prospective source of funding, is also looking at the scheme. Hopes have been expressed that the new line might eventually be extended to Mwinilunga and even to join Angola's Benguela Railway without relying on the DR Congo link, to restore what was until the 1970s Zambia's main route for exporting copper and other metals. In April 2012, according to newspaper reports, the Zambian government "has issued a permit to North-West Railway Company (NWR) for construction of the 554km railway line from Chingola to Jimbe on the Angolan border".