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Allseas joined partners and stakeholders in Taiwan today for a special ceremony formally marking the start of the Yongan–Tongxiao 2 (YT2) offshore natural gas pipeline project and recognising its strategic importance to the island’s energy system.
Awarded by CPC Corporation Taiwan to a 50/50 Allseas and Boskalis partnership, YT2 is a major engineering, procurement and construction (EPC) project, and one of the longest offshore gas pipelines to be installed in shallow waters. The project reinforces Allseas’ role as a trusted partner for complex offshore energy infrastructure.
Within the partnership, Allseas is responsible for the offshore pipeline installation and pre-commissioning scope, including the pre-lay installation of concrete mattresses. These activities will be executed using two of the world’s most advanced pipelay vessels, drawing on Allseas’ decades of experience delivering large-scale, technically demanding pipelay projects.
Complementing this scope, the project also includes extensive nearshore and offshore works, such as landfalls, trenching, backfilling and the protection of pipeline and cable crossings, delivered by consortium partner Boskalis.
Offshore execution is scheduled to commence in 2027. Once completed, the 232-kilometre-long, 36-inch pipeline will connect the Yongan LNG terminal in southwestern Taiwan with the Tongxiao LNG transfer station in the northwest. Running parallel to the existing YT1 pipeline, YT2 will significantly enhance the capacity, reliability and resilience of Taiwan’s natural gas transmission network, supporting energy security and the country’s transition towards a lower-carbon energy mix.
For Allseas, YT2 reflects the company’s core strength: delivering technically demanding offshore engineering solutions with precision and reliability – and helping shape the next generation of energy infrastructure.