Governments Become Deal Participants in Critical Minerals

Governments including the United States, Japan, and South Korea are shifting from lenders to direct equity participants in critical minerals projects, using price floors and offtake agreements once reserved for private capital. Mexico signed a bilateral Action Plan on Critical Minerals with the US in February 2026 covering copper, silver, lithium, graphite, and zinc, but its 60-day implementation window closed without binding capital commitments. Declining exploration activity and restrictive lithium policy are redirecting investor interest toward Argentina and Brazil, leaving Mexico's mining sector with policy alignment but limited financial follow-through.

Governments are no longer content to simply lend money to mining projects, they are increasingly showing up as direct participants in the deals themselves, taking equity stakes, setting price floors and locking in offtake agreements once reserved for private investors. That shift, detailed by Houston-based Baker Botts lawyer Rebecca Seidl Inglesby in comments to MINING.com, marks a fundamental change in how critical minerals projects get financed, and it is reshaping who has a seat at the table when a mine moves from discovery to production.

From Lender to Counterparty

The clearest example is Washington's own playbook. In February, the Trump administration launched "Project Vault," a US$12 billion strategic stockpile of critical minerals designed to insulate US manufacturers from supply disruptions and reduce dependence on Chinese metals. Since then, the United States has signed or approved roughly 160 minerals-related deals worth close to US$40 billion, according to Fastmarkets, blending traditional tools like EXIM loans and Department of Energy support with something new: direct federal equity sitting alongside private capital.

"The government is not just backstopping these deals anymore," Seidl Inglesby said. "The government is now at the table as a counterparty." That combination of incentives, equity, price floors, guaranteed purchase agreements, is paired with penalties, including tighter restrictions on defense contractors sourcing materials from restricted suppliers. Agencies that a few years ago would have stayed out of purely commercial mining transactions, including the Department of Energy, Department of War and Department of Commerce, are now routinely involved, Seidl Inglesby said, reflecting Washington's shift toward treating critical minerals as a national security issue rather than a trade question.

The trend is not confined to the United States. Japan and South Korea have taken similar direct stakes in mining and minerals projects, and the level of state involvement globally is, in Seidl Inglesby's words, "unprecedented."

Where Mexico Fits 

Mexico has spent much of 2026 positioning itself to benefit from exactly this kind of realignment. During its Pacific Alliance presidency this year, Mexico has prioritized industrializing critical minerals and rare earths to deepen regional supply chains, and the country ranks among the world's top 15 producers in 19 minerals, 12 of which the US considers critical to its national security. 

At the Mexico Mining Forum PDAC 2026, CAMIMEX Director General Karen Flores argued that a coherent national critical minerals policy could draw as much as US$43 billion in investment by 2030 and create half a million jobs, framing raw material access as the new currency of global power.

The centerpiece of Mexico's strategy has been the Mexico-US Action Plan on Critical Minerals, signed February 4 alongside the broader US Critical Minerals Ministerial that brought 55 nations to Washington. The plan named copper, silver, lithium, graphite and zinc as priorities for joint development and floated geological data-sharing, coordinated stockpiling and border-adjusted price floors, mechanisms that echo precisely the kind of "blended capital stack" Seidl Inglesby described in the broader US market.

But the follow-through has been thin. The bilateral action plan carried a 60-day implementation window that closed April 5 without binding obligations or attached capital, and Mexico was not among the eleven countries that signed formal memoranda at the Ministerial, even as the US committed billions in new financing through initiatives like Pax Silica. Mexico did secure one of only three bilateral action plans to emerge from the summit, alongside Japan and the European Commission, a fact MBN has noted says more about the country's strategic weight to Washington than its absence from the signing list. Still, plan and capital are not the same thing, and so far Mexico has the former without much of the latter.

The Structural Gap Behind the Headlines

That gap lines up with a warning embedded in Seidl Inglesby's broader comments: government backing does not eliminate the physical constraints of building mines and processing capacity, and capital availability does not guarantee bankability. Binding offtake agreements, she noted, have become what actually makes a project financeable in the current environment, not just a mineral deposit or a policy framework.

For Mexico, that reinforces a challenge flagged elsewhere: restrictive state control over lithium, slower regulatory reform, and a decline in exploration activity of roughly 11.5% in 2024 have already diverted some investor interest toward Argentina and Brazil, where structured incentive regimes have proven more attractive. The OECD has urged Latin American governments broadly to enact structural reforms covering investment rules, regional integration and institutional capacity to convert mineral reserves into real supply chain leverage.

As governments worldwide move from the sidelines to the negotiating table, the question for Mexico is not whether it holds the minerals the US and its allies want, it clearly does. It is whether Mexico's own government is prepared to become the kind of deal participant its neighbors already are, rather than a policy partner still waiting for the capital to arrive.