A ceremony held in Taiwan today formally marked the start of the Yongan–Tongxiao 2 (YT2) offshore natural gas pipeline project and underscored its strategic importance to the island’s energy system.
The engineering, procurement, and construction (EPC) contract was awarded by CPC Corporation Taiwan to a 50/50 partnership between Allseas and Boskalis. The project is described as one of the longest offshore gas pipelines to be installed in shallow waters.
Under the partnership split, Allseas will deliver the offshore pipeline installation and pre-commissioning scope, including pre-lay placement of concrete mattresses. The company said the work will be executed using two pipelay vessels it describes as among the world’s most advanced, supported by its experience on large, technically demanding pipelay campaigns.
Boskalis will execute nearshore and offshore works, including landfalls, trenching, backfilling, and protection measures at pipeline and cable crossings.
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 is expected to 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.
