Mexico and the U.S. Hold First Bilateral USMCA Round: What Changed This Week.

On April 20 and 21, U.S. Trade Representative Jamieson Greer met in Mexico City with President Claudia Sheinbaum and Economy Minister Marcelo Ebrard for bilateral discussions tied to the 2026 USMCA review. The tone was clearer than at any point since the review launched in March, and the message from Washington was direct. Tariffs are not coming off as part of the renegotiation.

The statutory joint review date is July 1, 2026. Mexico is pushing for an early sectoral understanding on steel, aluminum, and autos ahead of that date. The United States is holding its leverage.

What Happened This Week

According to Reuters reporting on April 21, Greer told Mexican auto and steel industry leaders in meetings in Mexico City that they should not expect the USMCA renegotiation to remove President Trump's tariffs on their sectors. Modern Diplomacy reported the same day that the United States "does not intend to return to a zero tariff framework."

Current U.S. tariff exposure for Mexican exporters includes a 25 percent duty on imported automobiles and duties as high as 50 percent on steel and aluminum.

On rules of origin, Modern Diplomacy reported that U.S. proposals include "requiring 100 percent North American sourcing for key components such as engines and electronics." This is an important technical distinction. Today, under USMCA, passenger vehicles and light trucks must meet a 75 percent Regional Value Content threshold, and the seven defined core parts, including engines, must meet separate Regional Value Content requirements. A 100 percent sourcing requirement is stricter than raising a value-content percentage, because sourcing requirements leave no room for non-originating inputs even in small proportions.

Sheinbaum publicly announced on April 20 that Mexico will seek an early sectoral agreement covering steel, aluminum, and automotive trade, pushing for zero-tariff treatment on products that comply with regional rules of origin. Per a joint statement from USTR, the next formal round between Greer and Ebrard is scheduled for the week of May 25 in Mexico City.

Why This Matters for Companies Entering Mexico

The strategic implications are sharper than the headlines suggest. Three things are now clear.

First, the bilateral structure of these talks tells you where Washington's attention is. Economy Minister Ebrard has himself described the review as "more bilateral than trilateral." Per Reuters on April 22, no date has been announced for formal talks between the United States and Canada. For Canadian companies evaluating Mexico as a nearshoring base, that sequencing matters. Mexico is being handled first, and concessions on the Mexico track will frame the parameters of whatever follows with Canada.

Second, the tariff ceiling is not coming down before July. Companies modeling Mexico operations based on pre-2024 tariff assumptions are working with a stale spreadsheet. CSIS analysts now describe clean renewal as the least likely outcome, with a "painful extension" scenario, where Mexico and Canada make important concessions to preserve the agreement, carrying moderate probability. Operating plans need to assume elevated tariff exposure persists into 2027.

Third, rules of origin are the real battleground. If the U.S. proposal to require 100 percent North American sourcing for key automotive components moves forward as reported, supplier relationships built around Asian or European inputs for those components will need to be restructured. Companies that set up in Mexico specifically to access USMCA duty-free treatment cannot assume their current bills of materials will qualify in 2027.

What Companies Should Be Doing Right Now

The companies we are speaking with, most of them Canadian manufacturers and American mid-market operators, are making three moves this quarter.

They are accelerating HS code analysis on current and planned imports into Mexico, because understanding exactly where a product sits relative to current and proposed rules of origin is the difference between a compliant supply chain and significant duty exposure. As we covered in our analysis of HS code analysis for Mexico imports, this work is the foundation of any tariff mitigation strategy.

They are evaluating entity structures that preserve optionality. A standalone Mexican subsidiary, an IMMEX program, or a shelter arrangement each carry different exposure profiles under changed rules of origin. Companies that locked in a structure in 2022 may find themselves on the wrong side of the new regime. Our analysis of Mexico entity structure options walks through the tradeoffs.

They are engaging institutional channels. The Canadian Trade Commissioner Service and the U.S. Commercial Service are the official channels through which government-level intelligence on the review's trajectory flows to companies. Firms already in dialogue with these offices are better positioned than those relying solely on the trade press.

The Quiet Truth

The USMCA review is unlikely to produce a clean renewal. It is producing a renegotiation, in stages, under pressure, with Mexico absorbing most of the adjustment. For companies that have already entered Mexico, this is a period of structural risk that requires active management. For companies that are evaluating entry, it is a period that rewards patience and preparation over speed.

The deals that survive the next twelve months will be the ones built by operators who understood that institutional clarity, partner selection, and rules-of-origin discipline matter more than the tariff headline on any given day.

if this raises questions about your own mexico strategy, we're here to talk.