Internet trading site MercadoLibre has agreed to purchase the operations of rival DeRemate in Argentina, Chile, Colombia and Mexico for $40 million. Under the terms of the agreement, MercadoLibre will acquire DeRemate for $22 million in cash and issue a promissory note to DeRemate for the remaining $18 million, MercadoLibre says. “The combination of marketplaces would mean greater product offerings, increased liquidity and additional buyers and sellers on our websites,” the company says.