BOGOTA, May 15 (Reuters) - Colombia's Grupo Argos first

quarter net profit jumped to 3.8 trillion pesos, compared to 406

billion pesos in the year-ago period, the conglomerate said on

Wednesday, citing in part huge gains from its Grupo Nutresa

divestment.

It also pointed to gains from the combination of assets of

its U.S. unit and Summit Materials.

Argos, with units in the energy, cement and airport

operation sectors, saw revenues in the January-to-March period

rise 21% to reach 4.5 trillion pesos.