Mitsubishi Heavy Industries is close to concluding talks to sell its main Koyagi shipyard, one of two yards it owns in Nagasaki prefecture.
The facility is going to neighbouring Oshima Shipbuilding.
No price has been declared for the deal, although a figure of around JPY 100m ($9.1m) has been reported as the selling price. Koyagi employs around 600 people, although it is unclear whether they will also move over to Oshima.