Full definition
A Mexican customs regime (importacion temporal) that allows goods to enter Mexico without payment of import duties (IGI) and IVA, with the obligation that the goods will be returned, exported as finished product, or transferred to another authorized program within a specified period. Maximum duration: 18 months for raw materials and components used in manufacturing (under IMMEX program), 6 months for tools, equipment, and containers, and up to the duration of the manufacturing process for machinery. Temporary imports must be tracked in the company's customs inventory system (Annex 24) and reconciled with export declarations (pedimentos de exportacion). Failure to return/export the goods within the permitted period triggers retroactive payment of all duties and taxes plus penalties. Types of temporary import: (1) Under IMMEX — for manufacturing export goods (most common, largest volume). (2) Under specific authorization — for exhibitions, trade shows, and temporary use. (3) For repair and return — equipment sent to Mexico for service/repair and re-exported. Per Mexican Foreign Trade Law (Ley de Comercio Exterior), General Foreign Trade Rules (Reglas Generales de Comercio Exterior), and IMMEX Decree. For industrial rubber suppliers: understanding your customer's customs regime (temporary vs. definitive import) affects pricing, documentation, and compliance requirements.