As the Special Development Zone of Mariel (ZED Mariel) marked its thirteenth anniversary, the celebrations were characterized by a commercial fair, revolutionary tributes, and institutional rhetoric focused on productivity, unity, and the future.
The exhibition images depicted a modest turnout, a stark contrast to the high expectations surrounding the launch of Raúl Castro's flagship project.
Yet, Mariel's fundamental issue extends beyond the fair's attendance. It lies in the outcomes of thirteen years of massive investments, promises of modernization, and economic reforms that have yet to transform the zone into the promised engine of production and export.
The Infrastructure Dilemma
Despite having modern port facilities, operational factories, and foreign enterprises, a significant portion of approved projects remains inactive, and the container terminal operates far below capacity. Even Prime Minister Manuel Marrero Cruz admitted in December 2024 that the project failed to meet its goals and had lost its competitive edge.
Examining Cuba's Economic Model
What's stopping this zone, designed to attract international capital with state-of-the-art infrastructure and exceptional fiscal incentives, from thriving? The answer lies deeper, within the Cuban economic model and its inherent contradictions over the past decade.
When Mariel began operations in November 2013, under Raúl Castro's administration, the government was advocating an update to the socialist model. The zone was meant to prove that Cuba could draw in significant foreign investments while maintaining state control over strategic sectors.
Contradictions and Economic Challenges
This vision was inherently contradictory: establishing a competitive space linked to the global market within a centralized economy with limited business autonomy, currency restrictions, and bureaucratic hurdles that influenced investor decisions.
The 2014 Foreign Investment Law expanded incentives but failed to resolve these issues. Cuban economist Ricardo Torres Pérez, in a study published by Columbia University, pointed out that tax benefits do not compensate for the lack of economic stability, trust, administrative simplification, and productive relationships with the rest of the country.
A factory in Mariel requires suppliers, transportation, energy, workers, and access to foreign currency. It cannot operate independently from a national economy characterized by scarcity, deindustrialization, and administrative constraints.
A Decade of Unresolved Distortions
Mariel's journey has paralleled a series of government programs presented as solutions to Cuba's economic woes.
First came the Lineamientos and the socialist model update. Then, new foreign investment measures, expanded private work opportunities, and attempts at currency unification followed.
The 2021 "Tarea Ordenamiento" aimed to eliminate currency distortions and reorganize wages and prices, ultimately worsening monetary imbalances and fueling inflation that eroded Cubans' purchasing power.
In 2024, the government launched another program to "correct distortions and revitalize the economy." A year later, new government program projections continued, alongside partial dollarization that contradicted previous currency unification promises.
Even Miguel Díaz-Canel acknowledged in March 2025 the need to update monetary and exchange rate policies in an economy where the imbalances the Ordenamiento promised to address persisted.
Lack of Predictability for Investors
This succession of corrections poses a fundamental problem for foreign investors: unpredictability.
A company investing millions of dollars needs to know the conditions under which it can operate for years, access foreign currency, pay suppliers, and recover its investments. Continuous changes to the economic framework complicate this planning, even when some individual measures offer advantages.
While the government announced reform after reform, Mariel remained unable to attract the level of investment and export activity initially anticipated.
Controversies with Odebrecht
The project's history is also marred by controversies related to its financing and construction.
The Brazilian company Odebrecht, implicated in one of the largest international corruption scandals, participated in the port modernization with funding from Brazil's state bank BNDES.
In 2019, a Miami Herald investigation linked to the International Consortium of Investigative Journalists (ICIJ) identified approximately 8.4 million dollars in off-the-books payments related to Mariel's construction, within Odebrecht's clandestine system. The documents did not publicly identify the final recipients of the money.
Brazilian financing also faced scrutiny from that country's oversight bodies. In 2019, CiberCuba reported on irregularities flagged in a Brazilian audit of the credits granted for the port's construction.
These irregularities and controversies do not prove that Cuban authorities received bribes, but they raise questions about transparency, oversight mechanisms, and accountability in one of Cuba's largest infrastructure investments in recent decades.
New Reforms or the Same Old Control?
In June 2026, a new dimension of contradiction emerged with the announcement of 176 economic and social transformations.
The package aims to increase private participation, loosen foreign investment restrictions, authorize new financial institutions, reduce administrative barriers, and grant more autonomy to businesses.
Some measures represent tangible changes. For instance, a September reform allows foreign investors to hire workers directly without relying on state employment agencies.
While this is a significant change, it also raises a question: Why did it take thirteen years to remove a restriction that so long deterred investment?
On November 2, as Mariel celebrated its anniversary, Díaz-Canel announced that 171 out of the 176 measures had completed their legal foundations, with 215 regulatory provisions approved. Five more, considered the most controversial, remained pending.
The president presented these figures as evidence of progress. However, approving regulations does not equate to securing investments, increasing production, or stabilizing the economy.
Mariel serves as a case study for this difference: numerous authorized projects, approved incentives, and financial commitments did not translate into the expected productive activity.
The critical question is whether the new transformations will effectively alter the conditions for investment or if they will end up replicating the limitations of previous programs.
Challenges Beyond Reforms
The tightening of U.S. sanctions has further complicated Cuba's access to financing, markets, and international services. In 2026, new restrictions directly impacted companies and operations linked to the port.
However, Mariel's challenges predate these measures. Its limited investment attraction, bureaucratic hurdles, and weak integration with the national economy were documented years earlier.
Sanctions explain part of its outcomes but do not absolve Cuban authorities of responsibility for the policies they designed and implemented.
There is also a fundamental difference between allowing greater private activity and establishing institutional conditions that offer long-term stability, transparency, and legal certainty.
From Raúl Castro to Miguel Díaz-Canel, authorities have presented successive modernization, decentralization, and economic opening programs, but the process's direction and oversight remain under the same Communist Party and its institutions.
Reforms can change business operation rules without necessarily altering the decision-making, oversight, and political accountability mechanisms that influence their application.
Mariel was born as an exception meant to drive an economy in need of profound transformations. Thirteen years later, its journey illustrates how partial reforms have encountered limits within the economic and institutional environment they sought to overcome.
While authorities celebrate new measures and announce future opportunities, they have yet to demonstrate that this time they can provide the stability and productive conditions that eluded the most emblematic project of Raúl Castro's economic opening.
Understanding Mariel's Challenges
Why did Mariel fail to attract the expected level of investment?
Mariel struggled due to a combination of Cuba's centralized economic model, bureaucratic hurdles, currency restrictions, and lack of integration with the national economy. These factors, alongside unpredictable policy changes, discouraged long-term foreign investment.
What role did Odebrecht play in the Mariel project?
Odebrecht was involved in modernizing the Mariel port, funded by Brazil’s state bank BNDES. The company's participation became controversial due to its involvement in international corruption scandals, raising questions about transparency and oversight.
How have U.S. sanctions affected Mariel?
U.S. sanctions have complicated Cuba's access to international financing and markets, directly impacting operations linked to Mariel. However, the zone's issues were evident before these sanctions intensified.