Molinos, Vicentin and Oleaginosa Moreno Hermanos will invest US$350 million in building a soy processing plant in Argentina, the companies said on Wednesday (June 30).

The grain processing plant will be located just north of Rosario, the main agro-industrial hub in Argentina, which is the world's largest supplier of soymeal and soyoil.

The plant will have "the capacity to generate its own energy and a port for exports of beans and their derivatives," Molinos said in a statement sent to the Buenos Aires Stock Exchange.

The biodiesel producer Renova, in which the three firms have an equal stake, will build the plant.

Molinos, one of Argentina's main agricultural and food firms, is controlled by local businessman Gregorio Perez Companc. Oleaginosa Moreno Hermanos is indirectly owned by commodities trader Glencore.