It was originally associated with the process of milling. The maquilas in Mexico began as a border phenomenon over 30 years ago. With the support of the Mexican government, US firms set up assembly plants on the Mexican side of the border. Now maquilas are in many parts of Mexico and Central America. The lure of the maquilas is low wages, a lack of environmental or labour regulations, low taxes, and few if any duties.
Products produced include apparel, electronic goods, auto parts, etc.