Corp 139 final bundle: the Gulf and Pacific port operator kit

The Mexican port system and 24/7 operations

The Mexican port system concentrates more than 80% of foreign trade by sea according to SCT, ANIERM and SECTUR data. The highest-volume ports are Manzanillo (over 3.4 million annual TEU), Veracruz (over 1.2 million TEU), Altamira (over 700,000 TEU), Lázaro Cárdenas (over 800,000 TEU), Ensenada and Puerto Peñasco. The port corporate operates 24/7 rotating shifts on containerised cargo, general cargo, agricultural bulk, mineral bulk, automotive and Ro-Ro cargo.

The port operator's work demands PPE certified under NOM-017-STPS-2008, life vest with USCG (US Coast Guard) certification for dock operations, type II class E industrial hard hat for suspended load handling, rechargeable LED flashlight for night shifts in the yard, and waterproof dielectric boots for the wet zone. The corp 139 final bundle covers the initial issue of yard operator, crane operator, longshoreman or dock supervisor.

The port operator under IMMEX regime invoices at 0% IVA on temporary container import operations. For domestic cargo operations, 16% national IVA applies. The invoice breaks down per dock, operator and shift. Deductibility runs under Article 27 LISR as port operating expense, with supporting documentation: operator list signed by dock supervision and current IMMEX certificate.

The port corporate runs continuously: three 8-hour rotating shifts (morning, afternoon, night), seven days a week, with peak operations in agricultural harvest season (October to March, bulk in Veracruz and Manzanillo) and automotive export season (all year in Altamira, Veracruz and Lázaro Cárdenas). Delivery to dock runs via specialised carriers with 1–3 day transit for Gulf and Pacific ports.

How the port kit is invoiced

The corp 139 final bundle invoices under USO CFDI D02 when booked as training expense, or I08 when booked as port operating expense. The port operator under IMMEX regime invoices at 0% IVA on temporary container import operations. For domestic operations, 16% national IVA applies. Deductibility runs under Article 27 LISR as port operating expense.

The port corporate with more than 100 operators per shift issues a single consolidated invoice with per-dock, shift, operator RFC and kit-count breakdown. The invoice attaches the framework contract covering the period (monthly, quarterly or annual) and the list of operators assigned to each dock. Renewal runs automatically with 30-day prior notice.

For port corporates reporting ESG indicators (energy efficiency, emission reduction, maritime safety), the corp 139 final bundle provides evidence of commitment: the LED flashlight reduces energy use, the certified dielectric boots prevent accidents, the USCG life vest protects human life. The CFDI 4.0 invoice with certified-PPE breakdown serves as supporting documentation for the ESG spend reported in the sustainability report.