Meaning
Regulatory incentive program created by the Mexican government allowing foreign manufacturers to import machinery and plastic injection moulds duty-free provided the finished goods are exported. Under this administrative framework, moulders operating in Mexico process imported polymer resins without paying general import duties or value-added tax upon border crossing. Utilization of IMMEX temporary import reduces upfront working capital requirements for cross-border supply chains.
The program stops applying if imported materials or parts derived from them remain within the Mexican domestic market without commercial import conversion.
Duty Exemption
Suspension of import tariffs applies to raw polymer resins, masterbatches, insert components, and production tooling. Customs bonds guarantee that imported plastic materials will leave the country as finished assemblies. Non-compliance results in immediate retroactive application of import duties and tax surcharges.
Time Limit
Authorizations define maximum residence periods for imported goods inside national territory. Raw materials must be processed and exported within eighteen months, while injection moulds and equipment may remain for the duration of the program. Exceeding these statutory timeframes forces manufacturers to nationalize assets or return them abroad immediately.
Inventory Traceability
Automated inventory control systems match imported resin volume against exported finished part weight plus allowable scrap allowances. Unaccounted material discrepancies trigger customs audits and potential suspension of operating licenses. Moulders calculate scrap rates accurately to maintain compliance during statutory audits.