It is the company’s second such tender within two years and is a sign of the its resolve to remain a market leader in the deep-water installation sector.

Last May, London-based Subsea 7 signed up South Korean yard group Hyundai Heavy Industries for delivery of a heavy construction vessel following a newbuild tender for up to two flex-lay units.

The heavy construction vessel, to be named Seven Arctic, is a 160-metre long flex-lay unit with a 7000-tonne carousel.

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