U.S. firms to invest $2.3 bln in Argentina over 18 months: chamber

BUENOS AIRES, March 23 (Reuters) - U.S. firms will invest

more than $2.3 billion in Argentina over the next 12-18 months,

a U.S. chamber of commerce official said, in a boost to

President Mauricio Macri who met with President Barack Obama on

Wednesday.

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