IMMEX is a Mexican government program that lets manufacturers temporarily import materials and equipment duty-deferred to produce goods for export. It underpins the maquiladora economy along the border and generates a large share of northbound cross-border freight.
IMMEX (Industria Manufacturera, Maquiladora y de Servicios de Exportación) is the program, created by decree in 2006 as the successor to the maquiladora and PITEX regimes, under which Mexico's Secretaría de Economía authorizes companies to temporarily import raw materials, components, and equipment without paying import duties up front, on the condition that the output is exported. VAT treatment runs through a separate SAT certification. The program has several modalities, including industrial manufacturing, services, and shelter operations that let foreign companies produce in Mexico without a local entity.
IMMEX plants cluster in the border states and the Bajío, and they are the engine behind much of the maquiladora freight that crosses north every day.
If you haul or broker northbound manufactured goods, odds are the shipper operates under IMMEX. Two operational realities follow. First, documentation is strict: IMMEX companies track every imported input against exported output, so their pedimentos and inventory controls are tight, and they expect the same discipline from transport providers on counts, seals, and PODs. Second, their freight is deadline freight: production lines and export windows drive pickup times, which makes reliability worth more than a marginally lower rate. Understanding a customer's IMMEX cadence, daily shuttles to the border, weekly linehauls to U.S. plants, helps you plan capacity and price round trips realistically.
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