On August 30, 2026, President Sheinbaum sent an initiative to the Mexican Senate to reform the Foreign Investment Law, formally expanding the country’s foreign direct investment screening regime. National security and economic security concerns will now displace the purely sector - based thresholds as the organizing principle of Mexican FDI policy. This was foreseeable: the U.S. has used the USMCA renegotiation to press Mexico to tighten restrictions on Chinese products, including higher tariffs and changes to its FDI regime. What follows is my read on why this matters, what Mexico’s move signals, and what to watch for as the initiative moves through Congress.
Key aspects
- New national security chapter — The initiative adds a national security review framework covering strategic infrastructure, critical technologies, essential inputs, and sensitive data.
- Dual mandatory-filing threshold — Filing is mandatory when foreign investment exceeds 49% of a company's capital stock and total assets surpass a monetary threshold.
- Silence means denial — A transaction requiring approval cannot close without a favorable resolution. The initiative eliminates the current deemed-approval rule and replaces it with a deemed-denial rule instead.
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