The United States has refused to approve a long-term renewal of the USMCA, the North American trade pact, raising fears of disruption to global supply chains. The decision, confirmed late Tuesday by the U.S. Trade Representative’s office, leaves the 2020 agreement in a state of uncertainty with key provisions set to expire in 2026.
Negotiators from Mexico and Canada had sought a 16-year extension to the pact, which governs roughly $1.8 trillion in annual trade. The U.S. administration instead proposed a five-year rollover, citing the need for periodic review. Analysts say the move reflects a broader shift toward protectionism and away from the multilateral frameworks that have underpinned North American economic integration for three decades.
“This is a significant blow to the institutional architecture of North American trade,” said Marta Reyes, a trade economist at the Peterson Institute. “Without long-term certainty, businesses will delay investment decisions, and supply chains will become more fragmented.”
The USMCA replaced NAFTA in 2020, bringing updated rules on digital trade, labour standards, and intellectual property. Its sunset clause requires a joint review every six years, with any party able to withdraw after 16 years. By blocking the long-term renewal, Washington has effectively triggered a countdown that could see the pact unravel by 2030.
Mexico’s Economy Minister, Raquel Buenrostro, described the decision as “deeply disappointing” and warned that it would create “uncertainty for millions of workers and consumers across the continent.” Canada’s Trade Minister, Mary Ng, called for urgent talks to salvage the agreement, but U.S. officials have given no indication of a change in position.
The immediate impact is likely to be felt in the automotive sector, where strict rules of origin require a high percentage of North American content to qualify for tariff-free treatment. Automakers, already grappling with a shift to electric vehicles, now face the prospect of a fragmented regulatory landscape. The uncertainty could also affect cross-border trade in agriculture, pharmaceuticals, and energy.
“The U.S. is signalling that it no longer sees long-term trade agreements as in its interest,” said Professor James K. Galbraith, an economist at the University of Texas. “This is a dangerous game, because it erodes the trust that makes global supply chains work. Countries that feel betrayed will seek alternatives, and that will fragment the entire system.”
Global markets reacted cautiously, with the Mexican peso and Canadian dollar both weakening against the U.S. dollar in early trading. The S&P 500 fell 0.4 per cent, led by losses in industrial and materials stocks. Analysts said the full impact would depend on whether the three nations can reach a compromise before the 2026 review.
The development comes as the White House pushes its “Buy American” agenda, prioritising domestic manufacturing over international cooperation. Critics argue that the strategy will backfire, raising costs for consumers and weakening America’s competitive position in strategic industries such as semiconductors and critical minerals.
“The USMCA was never perfect, but it provided a stable framework for the world’s most integrated economic region,” said Reyes. “Without that framework, the region will become less attractive to investors, and the global supply chain will have to reorganise around uncertainty. That is a cost that will be borne by workers and consumers on both sides of the border.”
