North American supply chain restructuring is accelerating: The trend of "de-Canadianization" behind the US-Mexico joint negotiations

From Trilateral to Bilateral: The Restructuring of North American Trade Order

On July 21, 2026, trade negotiators from the United States and Mexico launched the third round of bilateral talks in Mexico City, aiming to revise the United States-Mexico-Canada Agreement (USMCA). Almost simultaneously, U.S. President Donald Trump announced new tariffs on Canada. This combination of moves sent a clear signal: the North American trade architecture is rapidly shifting from a trilateral "US-Mexico-Canada" framework to a bilateral "US-Mexico" dominance.

The USMCA, which took effect six years ago, originally required joint consultation among the three countries for extension. But the Trump administration refused to extend it, triggering a 10-year countdown—unless a new deal is reached among all three, the agreement will gradually lapse. This move puts Canada in an awkward position: the US-Mexico talks directly exclude Canada, while Canada must also cope with newly imposed tariffs. The U.S. Chamber of Commerce warned that this approach undermines business certainty, but the policy logic is already unfolding.

U.S. Core Objectives: Trade Rebalancing and Supply Chain Restructuring

U.S. Trade Representative Jamieson Greer made it clear that Trump's "top priority" is to reduce the goods trade deficit with Mexico and Canada and bring more manufacturing back to the United States. Data shows that the U.S. goods trade deficit with Mexico grew 17% in 2025 to $197 billion, while the deficit with Canada fell 21% to $48.3 billion. This contrast may explain Trump's sharply different attitudes toward Mexico and Canada: Mexico became the "problem" of a widening deficit, while Canada earned some "leniency" due to the shrinking deficit—but leniency did not prevent new tariffs.

On a deeper level, the U.S. is using the USMCA renegotiation as an opportunity to curb Chinese transshipment trade through Mexico. Mexico serving as a "back door" for Chinese goods entering the U.S. has already raised serious concern in Washington. The current talks are expected to tighten rules of origin, raise regional value content requirements for key products like automobiles, and add restrictions on Chinese inputs. This is not only about trade rebalancing but also supply chain restructuring—ensuring that the core benefits of the North American production network remain in the hands of the U.S. and its close partner, Mexico.

Mexico: The Biggest Beneficiary, But at a Cost

For Mexico, being chosen by the U.S. as a bilateral negotiating partner is a victory in itself. Under the U.S. "nearshoring" and "friendshoring" strategies, Mexico has become one of the biggest beneficiaries of manufacturing relocation. In 2025, Mexico attracted a record high of foreign direct investment, a large portion of which came from U.S. companies. The Trump administration's "de-Chinaization" drive has further strengthened Mexico's position as an alternative production base.

However, opportunities come with costs. Mexico must accept stricter rules of origin, especially in the automotive industry: it may require 75% or higher regional value content and mandate the use of U.S.-produced steel and aluminum. Additionally, Mexico may be asked to commit to restricting Chinese investment in certain sensitive areas and to strengthen customs supervision to prevent Chinese goods from transiting through Mexico. This means that while Mexico enjoys the nearshoring dividend, it also loses some industrial autonomy.

Canada: The Marginalized PredicamentCanada has become the biggest loser in this game. Excluded from US-Mexico negotiations and facing new tariffs, it highlights its secondary status in the Trump administration's strategy. Canada's trade deficit with the US has narrowed, and energy exports dominate, but Trump still imposes tariffs on the grounds of "unfair trade practices," potentially targeting traditional friction areas such as dairy, lumber, and softwood.

Canada faces limited choices: either accept unilateral conditions imposed by the US in negotiations to squeeze into the US-Mexico framework, or seek deeper cooperation with other markets (such as the EU and CPTPP members) to reduce dependence on the US. The latter option is riskier because the US accounts for over 75% of Canada's exports. Regardless, Canada's position in the North American supply chain is weakening, and its attractiveness as a manufacturing base is far inferior to that of Mexico.

Industrial Chain Impact: Dual Reshuffling in Automotive and Technology

The renegotiation of the USMCA has the most direct impact on the North American automotive supply chain. Currently, the automotive industry is highly cross-border integrated: a vehicle may travel back and forth between the three countries multiple times. New rules of origin may require higher US or North American content for vehicles and core components, forcing automakers like Toyota, Volkswagen, and General Motors to readjust their regional production layouts. Toyota has already announced the expansion of its Texas plant—a positive signal mentioned by Greer. However, small suppliers may exit due to rising compliance costs, further increasing concentration in the supply chain.

Another impact targets technology and electronics. Mexico has been vigorously developing its electronics manufacturing industry in recent years, becoming an assembly base for laptops, servers, and communication equipment. If the US tightens the definition of "Chinese content," many production lines relying on Chinese components will face disruption risks. This may accelerate the establishment of factories by Chinese companies in Mexico (to circumvent tariffs), but will also invite stricter scrutiny.

Long-Term Trends: North American Regional Competition Enters a New Phase

• Over the next 3-5 years, the following changes may occur:
• USMCA evolves into a "USM" agreement: Canada may be forced to accept a loose arrangement that is primarily bilateral with a minor trilateral component, or even a situation where the US-Mexico agreement takes effect independently.
• Mexico's manufacturing parks continue to thrive: Industrial real estate demand remains strong in the northern border industrial belt, Nuevo León, and Guanajuato, but labor costs will rise.
• Southern US states benefit the most: States near Mexico, such as Texas, Arizona, and New Mexico, will attract more manufacturing and logistics investments, forming a "cross-border corridor."
• Canada's trade diversification faces obstacles: Canada may become more dependent on energy exports, with further manufacturing contraction, potentially pushing free trade negotiations with the UK and India as a hedge.
• Chinese companies face a "choose one" situation: Either give up the US market or completely move the supply chain out of China (to Mexico or the US), but the latter faces political resistance.

For investors, Mexico manufacturing funds, US border real estate, and automotive parts restructuring companies are worth attention; Canadian export-dependent industries (lumber, dairy) should be avoided.## Conclusion

The US-Mexico bilateral negotiations are not simply an update of trade terms, but a political tool for the United States to reshape the North American regional supply chain. Mexico is becoming a core partner under the US "nearshoring" strategy, while Canada faces the risk of being squeezed out of the core circle. This restructuring will not only affect the economic landscape of the three countries but also redefine the flow of global manufacturing. Enterprises should begin adjusting their North American layout, shifting decision-making from "trilateral integration" to the reality of "US-Mexico priority."