Argentina has “nearly closed” a new currency swap deal with China that will add the equivalent of US$ 9 billion to the South American country’s reserves, the central bank said on Sunday. Argentina and China first agreed to a swap program in 2009 to boost the South American country’s dwindling reserves under former President Cristina Fernandez. Last year, the center-right government of President Mauricio Macri and China agreed to extend the program for three more years.