In Episode 004 of AMMEX Mexico Trade Brief, we walk through five practical checks for U.S. procurement, logistics, and trade compliance teams before the first shipment moves.

This episode builds on an article by AMMEX editor Corey Brain, published in October 2026 in the Automotive Industry Action Group's (AIAG) Ahead of the Curve publication.

Five checks covered in this episode:

1. Confirm the legal entity and IMMEX program scope. Identify the actual company, operating locations, and customs responsibilities.
2. Trace one shipment through inventory records. Understand how materials, production consumption, and remaining quantities are reconciled under Anexo 24.
3. Review the document pack before dispatch. Align invoices, packing information, Incoterms, and broker instructions.
4. Keep IMMEX and USMCA qualification separate. Understand the evidence and responsibilities behind origin certification.
5. Test an exception before it happens. Prepare for rejected components, shortages, scrap, and returns.

Further Reading

Article published by AIAG:
Sourcing from Mexico? 5 Controls Automotive Buyers Should Verify

AMMEX Buyer Checklist:
How to Qualify an IMMEX Supplier in Mexico

About AMMEX

AMMEX Mexico Trade Brief provides independent, source-backed briefings on Mexico manufacturing, IMMEX, customs compliance, and cross-border supply chains.

Website: https://ammex.org.mx

This episode is independently produced by AMMEX and is not sponsored, produced, or endorsed by AIAG. It was researched and drafted with AI assistance and narrated using a synthetic voice. The content is for general informational purposes and does not constitute legal, tax, or customs advice.

Not necessarily.

In this episode of AMMEX Mexico Trade Brief, we explain three common misunderstandings about changing goods from temporary importation to definitive importation in Mexico:

• Why paying taxes is only part of the analysis
 • Why the original temporary-import records still matter
 • Why multiple goods, shipments, or containers cannot automatically be assumed to fit into a single pedimento

We also cover five practical questions companies and customs professionals should verify before deciding how a change of regime should be handled.

Read the AMMEX guide:
https://ammex.org.mx/comercio-exterior/cambio-regimen-importacion-temporal-definitiva-immex/

If your case involves specific pedimentos, documentation, multiple entries, or facts not covered by the guide, the page also includes a consultation form.

This episode was researched and drafted with AI assistance, reviewed by AMMEX, and narrated using a synthetic voice.

This program is for general informational purposes and is not legal, tax, or customs advice.

Not necessarily.

In this episode of AMMEX Mexico Trade Brief, we explain what Laredo border wait-time data actually measures, three common ways logistics teams misread it, and how historical context can make the data more useful.

We cover:

•  Why displayed wait time is not the same as total truck crossing time 
•  Why one current reading does not describe the whole day 
•  Why one bridge or lane does not represent the entire Laredo corridor 
•  How to use timestamps, bridge and lane information, and historical baselines more responsibly 

Explore the AMMEX Laredo Commercial Crossing Times tool:
https://ammex.org.mx/logistica/laredo-tiempos-cruce/

This episode was researched and drafted with AI assistance, reviewed by AMMEX, and narrated using a synthetic voice.

This program is for general informational purposes and is not legal, customs, or logistics advice.

This episode separates three things that routinely get collapsed into one: what an IMMEX authorization actually is, whether it is current, and how much of a transaction it covers.

In this episode:

• Why IMMEX is an authorization issued to a Mexican legal entity, not a certification of a factory or a corporate group

• Why approval does not prove that current obligations are being met, and where Anexo 24 inventory control makes that concrete

• Why IMMEX does not automatically cover every material, process, facility or third party, and does not settle VAT treatment on its own

• Five questions a buyer can ask in a normal supplier conversation, without specialist vocabulary

The practical takeaway: treat IMMEX status as a due-diligence trigger, not a yes-or-no checkbox. The direct obligations sit with the Mexican program holder, but when records break or an authorization is suspended, the disruption reaches the buyer's supply chain.

Full episode notes, edited transcript, official sources (SNICE, DOF, SAT) and related buyer checklists: https://ammex.org.mx/podcast/what-us-importers-misunderstand-about-immex/

Narrated with synthetic voice from a script written and reviewed by the ammex.org.mx editorial team. General information only, not legal, tax or customs advice.