There is a door that Cuba has just opened. It is wide, freshly painted, with brass fittings and a sign above the lintel that reads, in effect: come in, invest, bring your capital, ask no political questions. The Cuban National Assembly swung it open on June 18, when it voted unanimously to approve 176 economic measures — private banks, equity stakes in state enterprises, diaspora investment rights, the abolition of the state monopoly on foreign trade. Prime Minister Manuel Marrero Cruz spoke for nearly two hours presenting the package. Raúl Castro, joining by video conference from wherever eighty-something men in his position go to avoid U.S. extradition, sent a written letter calling the measures "beneficial" and urging rapid implementation. The party apparatus that spent six decades calling the market counterrevolutionary voted, every last member, to let it in.
Five days earlier, on the other side of the Florida Straits, the United States Supreme Court had quietly set a bear trap in the doorway.
On June 23, the Court ruled 6-3 in Exxon Mobil Corp. v. Corporación CIMEX, S.A., holding that the Helms-Burton Act of 1996 abrogates the sovereign immunity of Cuban state agencies and instrumentalities. The ruling means that any foreign company doing business with a Cuban state-owned enterprise — trafficking in assets that were confiscated from American nationals after 1959 — is now exposed to civil suit in U.S. courts without the protections that usually shield foreign governments from American litigation. For six decades, those state-owned companies had a procedural wall. The Court, writing through Justice Brett Kavanaugh, knocked it flat. ExxonMobil had been waiting since 2019 to press its claim, which now exceeds a billion dollars, against CUPET and CIMEX for the oil infrastructure seized after Castro took power. The case can now proceed.
Here is the architecture of the trap. Cuba's reform package does not offer a newly created private sector. It offers conversions — state enterprises transformed into joint-stock companies, with shares available to national and foreign investors, including Cubans in the diaspora. The entities a foreign investor would actually engage with are, almost by definition, the same state-owned conglomerates that already sit at the center of Helms-Burton litigation: CIMEX, GAESA subsidiaries, hospitality entities that operate on confiscated land, logistics companies running on confiscated infrastructure. Buying equity in a Cuban state enterprise is not merely a complicated sanctions question now; it is a Helms-Burton trafficking question. The Supreme Court has just told the world that U.S. courts will hear those cases. A European hotel group, a Canadian mining company, a Latin American bank — any entity that considers taking up Cuba's new offer and maintains any U.S. business interests, U.S. correspondent banking relationships, or exposure to dollar-clearing networks has just been handed a legal opinion it did not ask for.
The State Department understood this calculus immediately. A spokesperson described Cuba's reform package as "modest, long overdue and ultimately superficial smoke signals," adding that Washington was holding out for reforms "that would make Cuba investable" — by which the administration means not economic liberalization but political transformation, the release of political prisoners, movement away from single-party rule. The smoke signals line was not diplomatic sloppiness; it was a precise message to foreign capitals considering whether the Cuban opening created space for commercial re-engagement. It did not.
The cruelest detail is the implementation void. Prime Minister Marrero acknowledged that the 176 measures touch more than 148 provisions of Cuban law and will require 32 new higher-ranking regulations — laws, decree-laws, decrees — whose drafting schedule he left unspecified. The National Assembly voted on a principle, not a framework. In 2011, Raúl Castro's earlier reform wave passed a similar package of modernization measures and spent the next four years implementing perhaps a third of them before the opening with Washington briefly charged the batteries of Cuban reform energy. Then that window closed, and the momentum dissipated, and the country that emerged from the Obama years without having completed its own transformation found itself, by 2026, in its worst economic contraction since the Special Period of the early 1990s — a cumulative GDP collapse that economists project will reach 23 percent between 2019 and this year.
One owes the counter-case a fair hearing. The reforms, on paper, are not nothing. Cuba has never before permitted private banking, never formally allowed companies to import and export outside the state trading monopoly, never opened equity stakes in state enterprises to diaspora Cubans. The Vietnamese model — Đổi Mới, the 1986 reforms that decentralized Vietnam's economy while preserving single-party rule — transformed a country in roughly comparable circumstances into one of Asia's fastest-growing economies. Cuba has been explicitly studying that template; Vietnamese officials were reportedly pressing Havana to implement it for years. Independent economists who have watched Cuba's reform cycles greet this package with something other than pure cynicism: the scale is genuine, the Raúl Castro endorsement provides political cover at the highest available level, and the alternative is a continued freefall that threatens not just the economy but the state's ability to govern at all. A government that cannot keep the lights on for more than a few days at a stretch — the national grid has now collapsed four times in 2026 alone — is a government running out of time to make voluntary choices.
But the Vietnamese comparison fails on one decisive axis: Hanoi reformed into an opening geopolitical environment. Cuba is reforming into a closing legal one. Đổi Mới did not have to contend with a Supreme Court precedent stripping every state entity the reforms touch of sovereign immunity in the world's most litigious jurisdiction. It did not have to attract foreign capital while a secondary-sanctions architecture — Executive Order 14404, signed May 1, authorizing asset freezes on any foreign person operating in Cuba's energy, financial services, metals, or security sectors — threatens to cut off any investor from the U.S. banking system. The Cuban reforms are architecturally sound in a building whose foundation is crumbling not from below but from above, by design.
This is what the 2015-2017 opening taught, and what the regime spent the years since refusing to absorb. The window that Barack Obama cracked open required not just economic signals from Havana but political ones — prisoner releases, a press landscape that didn't imprison journalists, some nominal architecture of competitive politics that the administration could point to at home. The regime gave enough to get the handshake and not enough to get the deal. When Trump closed that window in his first term and Obama-era authorizations quietly expired, the moment passed. What replaced it is what exists now: an adversarial legal and sanctions architecture so thoroughly constructed that the reforms Cuba finally passed — the ones it should have passed in 2015, or in 2011, or in 1994 — arrive not as an invitation to capital but as a liability notice. The door is open. The trap is set. Any investor sophisticated enough to evaluate the Cuban market is sophisticated enough to have read the SCOTUS opinion.
There is something almost classical in the timing. The revolution that confiscated Exxon's oil infrastructure in 1960 now asks the heirs of that company's competitors to buy equity in the entity that runs it, while the Supreme Court holds that Exxon can sue that entity for every dollar it has ever earned from the confiscation. Cuba opened the market just as the market was ruled a crime scene.
The door is still open. No one is coming through.
Natalia Suyos writes for Cuba Journal on Business.
