Minsa Southwest, Inc. is the second largest producer of masa corn flour in the world.

Minsa was organized under the laws of Mexico on October 19, 1993, to purchase and operate certain assets of Miconsa, a Mexican government-owned masa corn flour producer. Minsa acquired certain Miconsa assets, including five masa corn flour plants and the "Minsa" brand name. The plants acquired from Miconsa are located in Mexico in Tlalnepantla, State of Mexico; Arriaga, Chiapas; Jaltipan, Veracruz; Guadalajara, Jalisco; and Los Mochis, Sinaloa.