Cheapest fare on the Mitre and Sarmiento commuter networks in Buenos Aires is due to rise from US$0·40 to US$0·50 this month, the first of a series of increases that Trenes de Buenos Aires has secured from the government to help fund a US$2·2bn investment programme under its renegotiated concession, now expiring in 2025 (RG 6.98 p371). With subsidy ending in 2005, TBA has undertaken to buy 555 new coaches and rebuild 150 (the first three-car EMU refurbished by MK Rail for the Sarmiento route was presented to the public on November 9), as well as electrify the 14 km José León Su