Norwegian shipbuilder Havyard Group is buying a ballast water treatment systems (BWTS) company.

It is acquiring a 77% stake in MMC Green Technology from First Process Holding.

The transactions is part of Havyard's sale of its 75% holding in MMC First Process to First Process and Credo Partners.

The Havyard company provides handling and cooling solutions for fishing vessels and live-fish carriers.

The deal is "expected to provide a significant effect on the company’s booked equity, and will also free up a substantial amount of liquidity," it said.