Seatrium Energy International (SEI) has issued a notice of arbitration against Maersk Offshore Wind’s affiliate Phoenix II A/S over a disputed wind turbine installation vessel contract.
The company said the SEI notice of arbitration was filed on 28 November 2025 under current London Maritime Arbitrators Association terms.
The case follows Maersk Offshore Wind’s decision on 9 October to issue a termination notice to SEI relating to the construction of a jack-up that was slated to work on Equinor’s Empire Wind 1 site off the US north-east coast.
According to Seatrium, the action seeks declarations that the buyer wrongfully terminated the contract on 9 October 2025 and that the contract remains valid.
Seatrium added that it is also seeking an order for specific performance requiring the buyer to take delivery of the vessel on 30 January 2026 and pay the delivery instalment due.
Seatrium said it is further seeking damages to be assessed.
The company reiterated that under the legacy contract 80% of the contract price is payable on delivery.
Seatrium said the financial impact of the arbitration depends on its final outcome.
The company said it will make further announcements when there are material developments.
Maersk Offshore Wind is pursuing a separate arbitration claim over the vessel.