Less than a week in office, Argentina's treasury secretary Nicolás Dujovne removed a rule requiring foreign capital stay in the country for a minimum of 120 days to pave the way for short-term investment.
The exception to the new 80% policy will be for credit given to municipalities for reconstruction after natural disasters, which will keep its 100% limit.
Opponents of a water law passed recently in the Mexican state are pushing for a referendum on whether to scrap the controversial legislation. The law allows private companies to participate in the sector.
BNamericas' annual infrastructure survey shows optimism about investment opportunities despite challenges.
The tender attracted the interest of 24 local and international companies.