A shelter manufacturer (in Spanish, albergue) is a Mexican company that lets a foreign manufacturer produce inside its plant, under its legal entity and its IMMEX permit. You bring your equipment, process and quality standards; the shelter carries the Mexican entity, customs program, payroll and facility. The result: you manufacture in Mexico without incorporating in Mexico.
What IMMEX actually does
IMMEX (Industria Manufacturera, Maquiladora y de Servicios de Exportación) is a Mexican federal program that allows temporary, duty-deferred import of raw materials, components and equipment used to manufacture goods for export. Combined with USMCA origin rules, qualifying finished goods can cross into the U.S. duty-free. For a U.S. company, that means resin, film, components and even production machinery can enter Mexico without paying import duties, as long as the output is exported.
What the shelter provides — and what you keep
The division of responsibilities is the heart of the model. A serious shelter takes the compliance and administration burden and leaves the product in your hands:
- Shelter provides: the IMMEX permit and customs compliance, temporary import/export handling, payroll, HR and labor relations, plant space and utilities, permits, licenses and local administration.
- You keep control of: your equipment and technology, your processes and methods, quality control and inspection, and your product IP.
When shelter beats contract manufacturing
Contract manufacturing means handing the build to someone else's process. Shelter means running your own process inside someone else's framework. Choose shelter when your process is proprietary, your quality system is the product, or you want operational control without a two-year entity, permit and hiring project. Choose contract manufacturing when you'd rather hand over a spec and receive finished goods. At USMEX we run both models in the same Tijuana plant — and our sister plant Synergy Packaging runs high-volume poly mailer production a few miles away, so film, packaging and production programs can share one border logistics chain.
Quick answers
Do I need a Mexican legal entity to manufacture under a shelter?
No. You produce under the shelter's entity and IMMEX permit. That's the core of the model — market access without incorporation.
Who employs the workers in a shelter arrangement?
The shelter is the legal employer and handles payroll, HR and labor compliance. You direct the work technically — training, methods and quality standards.
How fast can a shelter program start versus setting up our own plant?
A shelter program starts as fast as the space, equipment and staffing plan allow — typically months. Standing up your own Mexican entity, permits and IMMEX program from scratch usually takes far longer.
