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Chile Approves $4.45 Billion ‘Outer Port’ Expansion at San Antonio

26 May 2026

Chile has cleared the way for one of the largest infrastructure projects in its history after regional authorities unanimously approved the environmental permit for the massive “Puerto Exterior” expansion at...

Chile has officially greenlit the $4.45 billion Puerto Exterior project in San Antonio, marking a transformative milestone for South American maritime logistics. This massive expansion aims to significantly increase container throughput, accommodating ultra-large container vessels like the MSC Tessa class. By developing a new breakwater and automated terminals, the port authority expects to bolster trade efficiency. For Indian seafarers, this infrastructure upgrade represents a critical node in global supply chains, potentially increasing port calls for major shipping lines operating in the region.

The expansion must adhere to strict international safety and environmental standards, specifically aligning with MARPOL Annex VI regarding emission control areas and port-based shore power requirements. Compliance departments must ensure that vessels calling at the new San Antonio facility meet the latest SOLAS Chapter XI-2 requirements for port facility security. Furthermore, operations must integrate with the IMO’s Maritime Single Window mandate to streamline documentation. Adherence to these regulatory frameworks is essential for maintaining vessel certification and avoiding costly delays during cargo handling operations at this expanded hub.

For masters and navigating officers, the expansion necessitates a thorough review of updated port arrival procedures and pilotage requirements for the new terminal layout. Navigating officers should prepare for increased traffic density and updated VTS protocols within the San Antonio bay area. It is vital for bridge teams to familiarize themselves with the new berthing charts and tug assistance requirements to ensure safe maneuvering of large-scale vessels within this high-capacity, modernized port environment.

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