Two 400-metre ships will be able to dock at the same time while the wharf capacity will be increased by one million TEU to reach 1.8 million TEU, reports Istanbul's Daily Sabah.
The expansion the port run by Singapore port operator PSA and Tuirkey's Akfen company, was launched on Saturday with a ceremony attended by Transport and Infrastructure Minister Adil Karaismailoglu.
Mersin is Turkey's largest port with a surface area of 112 hectares with transit and hinterland connections to the Middle East and the Black Sea.
The port serves as the main export-import hub of Turkey's central, southern and southeastern regions, meeting a significant part of Turkey's foreign trade with its modern infrastructure and equipment, largest storage areas, trained human resources and proximity to the free trade zone.
In 2017, Akfen sold 40 per cent of the operational rights to Australian IFM Investors for $869 million. The port will be returned to the Turkish State Railways (TCDD) in 2043.