In Chiapas, the President inaugurates the Tonalá station of the Interoceanic Railway’s K Line. November 21, 2025.
Last Revision: May 2026
The Interoceanic Corridor of the Isthmus of Tehuantepec (CIIT) is a multimodal logistics platform designed to promote well-being and regional development across its area of influence, which includes the states of Veracruz, Oaxaca, Tabasco, and Chiapas. This initiative is implemented through coordination among the National Port System Administrations of Coatzacoalcos, Salina Cruz, Dos Bocas, and Puerto Chiapas, their interconnection via the Isthmus of Tehuantepec Railway, and the establishment of Development Poles for Well-Being under a comprehensive, sustainable, and inclusive approach that fosters economic, productive, and cultural growth.
For more information, please visit the CIIT official website.
Isthmus of Tehuantepec Railway
Line Z
With a length of 308.5 km, running from Coatzacoalcos, Veracruz, to Salina Cruz, Oaxaca, rehabilitation works began in 2019, and operations commenced in December 2023. Along its route, the line includes 16 stations.
In addition to freight services, Line Z provides scheduled passenger service with trains capable of carrying up to 400 passengers, offering Managerial, Executive, and Tourist classes.
Additionally, in December 2025, the El Tehuanito Suburban Train will begin operations from Monday to Friday over a distance of 189 km, offering two low-cost routes:
- El Tehuanito North Route: connects Ubero to Ixtepec, with stops at nine stations—Donají, Sarabia, Mogoñé, Matías Romero, Lagunas, Chívela, and Nizanda.
- El Tehuanito South Route: runs from Unión Hidalgo to Salina Cruz, including seven stations—Juchitán, Espinal, Ixtepec, Comitancillo, and Tehuantepec.
For more information, please visit the Isthmus of Tehuantepec Railway official website.
Line FA
With a total length of 330.45 km, rehabilitation began in 2023 and operations started in September 2024. The line includes seven stations and will interconnect with the Olmeca Refinery and, in Palenque, with the Tren Maya. It will also connect, through the Roberto Ayala Branch Line, to ASIPONA Dos Bocas via new railway tracks totaling 112.5 km. These works include three projects scheduled for completion in March 2027:
- Roberto Ayala–Dos Bocas Branch Line (90.84 km)
- Olmeca Refinery Branch (13.5 km)
- ASIPONA Dos Bocas Branch (8.2 km)
Line K
With a length of 447 km, this rehabilitation project began in 2023 and is being developed in three sections. It will interconnect the Mexican Railway Network with Central America through the border with Guatemala.
- Section 1: Ciudad Ixtepec – Tonalá | Inaugurated on November 21, 2025
Stations: Juchitán and Chahuites (Oaxaca); Arriaga and Tonalá (Chiapas) - Section 2: Tonalá – Huixtla | Scheduled completion: July 2026
- Section 3: Huixtla – Ciudad Hidalgo and KA branch from Los Toros to Puerto Chiapas | Scheduled completion: February 2026
National Port System Administration
Coatzacoalcos
ASIPONA Coatzacoalcos comprises two port facilities:
- Coatzacoalcos Facility: 12 berths, 10 warehouses, and 31 concessionaires.
- Pajaritos Port Facility: 1 berth and 4 storage warehouses operated by the Port Authority, plus 18 additional berths.
- Works in progress
- Commercial Terminal dredging: 87.3% | Completion: November 2025
- Traffic Control Center (parking): 82% | November 2025
- Traffic Control Center (roadways): 43% | November 2025
- Container yard expansion: 16.43%
- ASIPONA building: 2.90%
- Main access roads: 8.04%
- Operations buildings: 14.10%
- Silos and warehouses: 4.97%
For more information, visit the official website.
Salina Cruz
ASIPONA Salina Cruz has port infrastructure and equipment for containerized cargo, agricultural bulk, mineral bulk, general project cargo, and oil and petroleum products.
Works in progress
- Commercial Terminal construction dredging to -14 m at berths and -16 m in navigation channels and turning basins: 87.3% | Completion: October–November 2025
- Traffic Control Center (parking): 82% | October–November 2025
- Traffic Control Center (road expansion and customs routes): 43% | Completion expected November 2025
- Container yard expansion: 16.43%
- ASIPONA building construction: 2.90%
- Main access roads: 8.04%
- Operations buildings: 14.10%
- Construction of three silos and three warehouses: 4.97%
For more information, visit the official website.
Dos Bocas
ASIPONA Dos Bocas operates a Multipurpose and Supply Terminal focused on servicing the oil industry.
Works in progress
- Completion of the Mineral Bulk Terminal Pier
- Breakwater construction:
- Eastern Phase 1: 500 meters completed
- Phase 2: 2,100 meters (East) and 780 meters (West), expected completion December 2029
For more information, visit the official website.
Puerto Chiapas
ASIPONA Puerto Chiapas includes a Multipurpose Terminal, Container Terminal, Agricultural Bulk Terminal, fishing piers, fuel supply facilities, and a Comprehensive Cruise Service Center.
Works in progress
- Maritime and Port Protection Unit: 95% | Completion November 2025
- ASIPONA Administrative Building: 75% | Completion November 2025
- Extension of tracks and ASIPONA yard: 99% | Completion November 2025
- Construction of breakwater to reduce sedimentation and improve navigation safety
- Rehabilitation of the cruise pier and Multipurpose Terminal: completion December 2025
- Maintenance dredging to -11.5 m completed in October 2025
For more information, visit the official website.
Development Poles for Well-Being
Within the area of influence of the Interoceanic Corridor of the Isthmus of Tehuantepec, 14 Development Poles for Well-Being will be established to attract industries aligned with regional productive strengths. These poles will be eligible for federal and state tax incentives to promote job creation, economic growth, and comprehensive regional development.
Concessioned
- PODEBI Coatzacoalcos I | Statements | Calls for proposals | Ruling
- PODEBI Salina Cruz | Statements | Calls for proposals | Ruling
Conceded to Desarrolladora Multimodal del Istmo
- PODEBI Coatzacoalcos II | Statements | Calls for proposals | Ruling
Conceded to Casarve Servicios
- PODEBI Ixtaltepec | Statements | Calls for proposals | Ruling
Conceded to Marzal Co Istmo
- PODEBI Texistepec | Statements | Calls for proposals | Ruling
- PODEBI Matías Romero | Statements | Calls for proposals | Ruling
- PODEBI Santa María Mixtequilla | Statements | Calls for proposals | Ruling
- PODEBI San Juan Evangelista | Statements | Calls for proposals | Ruling
- PODEBI San Blas Atempa | Statements | Calls for proposals | Ruling
Conceded to ProIstmo
Under Award or International Public Tender
- PODEBI Ciudad Ixtepec | Statements | Calls for proposals | Ruling (canceled)
- PODEBI Tapachula I | Statements | Calls for proposals | Notice of Unsuccessful Tendering
- PODEBI Tapachula II | Statements | Calls for proposals | Notice of Unsuccessful Tendering
In Declaration Process
- PODEBI Teapa, Tabasco
- PODEBI Arriaga, Chiapas
Press Releases
2026
Documents
- April 23, 2026. Decree amending the decree establishing the non-sectorized decentralized public agency, with legal personality and its own assets, denominated Interoceanic Corridor of the Isthmus of Tehuantepec.
- April 23, 2026. Decree amending the decree promoting investment by taxpayers engaged in productive economic activities within the Development Polos for Wellbeing of the Isthmus of Tehuantepec.
- October 29, 2025. Institutional Program for the Administration of the National Port System of Coatzacoalcos 2025 – 2030.
- October 29, 2025. Institutional Program for the Administration of the National Port System of Salina Cruz 2025 – 2030.
- October 29, 2025. Institutional Program for the Administration of the National Port System of Dos Bocas 2025 – 2030.
- October 29, 2025. Institutional Program for the Administration of the National Port System of Puerto Chiapas 2025 – 2030.
- October 29, 2025. Institutional Program for the Isthmus of Tehuantepec Railroad 2025 – 2030.
- October 16, 2025. Institutional Program of the CIIT 2025-2030.
Archives
- November 21, 2025. Interoceanic Train Line K: President Claudia Sheinbaum inaugurates Tonalá and Arriaga stations in Chiapas.
- July 24, 2025. Tender Decision for the San Blas Atempa PODEBI Project.
- July 14, 2025. Information session on the Tapachula I and II Development Poles.
- July 3, 2025. Interoceanic Corridor, Sedatu, and Conavi benefit 209 families in Coatzacoalcos, Veracruz.
- June 25, 2025. Vice Admiral (Ret.) Octavio Sánchez Guillén assumes the directorship of the Interoceanic Corridor of the Isthmus of Tehuantepec.
- June 18, 2025. President: The Interoceanic Corridor is a highly important project for the country’s economic development.
- February 19, 2025. President Claudia Sheinbaum projects the completion of the Interoceanic Corridor of the Isthmus of Tehuantepec for the first half of 2026.
- January 17, 2025. Government of Oaxaca and Marina carry out the Economic Forum of the CIIT: “The New Gateway to Global Trade”.
- December 5, 2024. The Government of Mexico announces an investment of 32,875.24 million pesos for the modernization of six strategic ports in the country.
- November 21, 2024. The Navy and the FIT conduct a Transisthmian trip of 2000 tons of wheat.
- November 7, 2024. Participation of the National Port System Administration Puerto Chiapas in the establishment of the inter-institutional table for economic development of development poles.
- October 23, 2024. The Interoceanic Corridor, SEDATU and CONAVI are making progress in the delivery of housing in Salina Cruz, Oaxaca.
- September 13, 2024. Coverage Strategy (FIT 2025-2027).
- September 9, 2024. Progress and Results Report FIT January 2023 – June 2024.
- August 30, 2024. Government Management Report of the CIIT 2018-2024.
- August 29, 2024. Progress and Results Report 2023-2024 Program for the Development of the Isthmus of Tehuantepec.
- August 29, 2024. Progress and Results Report of the CIIT Institutional Program 2023-2024.
- July 24, 2023. Publication of the Organic Statute of the Interoceanic Corridor of the Isthmus of Tehuantepec.
- June 27, 2023. Development Poles for Well-Being (PODEBIS).
- June 19, 2023. Registration of Interested Parties in the Bidding Procedures for the Establishment of the Development Poles for Well-Being.
- May 8, 2023. Ministry of Economy Announces Bidding Guidelines for the Development Poles of the Interoceanic Corridor of the Isthmus of Tehuantepec.
- July 10, 2022. BID Financing to Boost Relocation of Companies in the Isthmus of Tehuantepec.
- June 12, 2022. Modernization of the Port of Coatzacoalcos and Development Poles are Key to the Development of the Isthmus of Tehuantepec.
- May 27, 2022. Progress and Results Report 2021.
- December 17, 2021. Integration of the Regional Committee to Strengthen Knowledge and Human Development in the Isthmus of Tehuantepec.
Videos
