
Logistics, Employment, and Territorial Cohesion with the Interoceanic Corridor of the Isthmus of Tehuantepec
The Institutional Program of the Interoceanic Corridor of the Isthmus of Tehuantepec (CIIT) 2025–2030, published by the Secretariat of the Navy in the Official Gazette of the Federation, represents one of the most ambitious regional development strategies in contemporary Mexico. Its primary objective is to consolidate a multimodal logistics platform that integrates ports, railways, highways, and industrial hubs across the south-southeast of the country. Through this plan, the federal government aims to transform a historically marginalized region into a competitive node for international trade, fostering territorial cohesion, productive diversification, and social inclusion.
Historical Background and Strategic Importance
The idea of linking the Gulf of Mexico with the Pacific Ocean through the Isthmus of Tehuantepec is not new. As early as the 19th century, various governments and entrepreneurs envisioned the potential of this narrow land corridor as a trade route connecting two oceans. The trans-isthmian route was inaugurated in 1907, offering an alternative to maritime routes that connected the east and west coasts of the Americas. However, its strategic significance declined after the opening of the Panama Canal in 1914, which quickly became the dominant interoceanic passage.
Throughout the 20th century, successive Mexican administrations revisited the idea, proposing projects such as the Puebla-Panama Plan in the early 2000s and the Special Economic Zones during the mid-2010s. Yet, these initiatives failed to establish a lasting logistics model due to fragmented planning, insufficient investment, and weak institutional coordination. The creation of the CIIT in 2019 marked a turning point. Its incorporation into the Secretariat of the Navy in 2023 and the reform enacted in May 2025 provided the corridor with a clear operational structure, defined powers, and a dedicated budget—essential elements for its long-term consolidation.
Territorial Scope and Demographic Potential
The CIIT’s area of influence encompasses 120 municipalities: 46 in Oaxaca, 33 in Veracruz, 31 in Chiapas, and 10 in Tabasco. Together, they cover nearly 22% of Mexico’s southern territory and are home to approximately 5.1 million inhabitants. Notably, 64% of this population is of working age, while 23% are young people aged 15-29—a demographic advantage that can fuel labor supply and innovation.
However, the region still faces significant structural challenges. Informality affects up to 80% of the workforce in states such as Oaxaca and Chiapas, and multidimensional poverty remains widespread. Despite progress—2.3 million people moved out of poverty between 2018 and 2024—income inequality, limited access to quality education, and infrastructure deficits continue to hinder equitable development. The CIIT’s socioeconomic strategy seeks to reverse these conditions by linking investment projects with inclusive employment and training programs.
Strategic Objectives and Policy Lines
The Institutional Program defines four main objectives that together form the backbone of the CIIT’s strategy:
Increase port operational capacity: The modernization of the ports of Coatzacoalcos, Salina Cruz, Dos Bocas, and Puerto Chiapas aims to expand handling capacity and improve competitiveness. The plan includes technological upgrades, dredging operations, and digital platforms to streamline logistics and customs processes. These ports are projected to strengthen connectivity with 82 international ports, including 15 of the world’s top 100.
Optimize mobility for people and goods: The program includes the rehabilitation of 1,200 kilometers of railway lines (Z, K, and FA), the expansion of the Trans-Isthmic Highway 185, and integration with the Maya Train and other national transport corridors. These projects will reduce transportation times, lower costs, and create new logistical linkages between the Pacific and the Gulf coasts.
Promote balanced economic growth: Through the creation of 12 Development Poles for Wellbeing (PODEBI), the CIIT aims to attract private investment and generate formal employment. These zones will offer fiscal incentives, access to energy and water infrastructure, and simplified administrative procedures. Each pole will specialize in different industries, from agribusiness and renewable energy to advanced manufacturing and logistics services.
Strengthen interinstitutional coordination: The program emphasizes the alignment of federal, state, and municipal policies. It also promotes social participation and transparent monitoring to ensure that development benefits reach local communities.
Economic Trends and Employment Generation
Between 2013 and 2018, the CIIT states experienced negative or stagnant economic growth. However, the 2019–2024 period marked a clear turnaround, with Oaxaca, Chiapas, and Tabasco showing significant progress. The number of formal jobs increased from 32,703 to 107,981 across the four states, a remarkable improvement in a region long characterized by informality and seasonal employment. Oaxaca in particular recorded positive growth in 22 of the last 24 years, although its contribution to the national economy remains limited at around 1%.
The CIIT seeks to consolidate this progress by linking infrastructure investment with vocational training and industrial development. Partnerships with educational institutions, including technological universities and polytechnic institutes, aim to align academic curricula with the needs of new industries established in the PODEBI zones.
Logistics Performance and Infrastructure Development
In 2024, the ports included in the CIIT handled around 21% of national cargo. Salina Cruz accounted for 4% of traffic in the Pacific basin, while Coatzacoalcos and Dos Bocas together represented 16.8% in the Gulf of Mexico. These figures underline the corridor’s growing relevance in Mexico’s maritime network.
Railway connectivity is centered on the Isthmus of Tehuantepec Railway (FIT), which operates three main lines: Z, K, and FA. The rehabilitation of these routes enhances multimodal integration, enabling the transfer of goods between trains, trucks, and ships. On the road network, Highway 185 has been expanded by 96.7 kilometers, including six new bridges and fifteen vehicle crossings, benefiting approximately 950,000 residents and improving regional accessibility.
Industrial Development and Private Investment
The PODEBI zones represent a cornerstone of the CIIT’s productive model. Strategically located along the corridor, they aim to attract national and foreign investment through preferential fiscal treatment and access to upgraded infrastructure. Each zone will promote a specific productive vocation: agro-industrial clusters in Oaxaca, petrochemical and logistics complexes in Veracruz, and renewable energy hubs in Chiapas and Tabasco.
In addition, the federal government has introduced digital tools to simplify business registration, facilitate land use management, and accelerate environmental permits. This is expected to reduce red tape and increase investor confidence. Early investors have already shown interest in sectors such as electronics assembly, automotive components, and green hydrogen production.
Toward a Comprehensive Regional Transformation
The Institutional Program of the CIIT 2025–2030 presents a coherent and long-term vision for the Isthmus of Tehuantepec. Its approach goes beyond physical infrastructure by integrating workforce training, trade facilitation, customs modernization, and social inclusion. If effectively implemented, the program could generate over 150,000 new formal jobs by 2030 and increase regional GDP by up to 2.5 percentage points annually.
Ultimately, the success of the Interoceanic Corridor will depend on interinstitutional coordination, sustained public and private investment, and the ability to translate logistics improvements into tangible opportunities for local communities. By linking ports, railways, highways, and industrial zones, the CIIT has the potential to reshape Mexico’s territorial dynamics—turning a once peripheral region into a vital logistics hub that strengthens national integration and enhances the country’s role in global trade networks.