The long-running saga surrounding the potential rescue of struggling Singapore offshore vessel operator Swiber Holdings has taken a further twist.

The company said it had received a “preliminary and non-binding expression of interest” from a third party in relation to a potential investment in the group.

However, the Singapore-listed entity failed to disclose the identity of the third party or its potential investment plans.

It added that any deal was still subject to satisfactory due diligence, the receipt of all necessary approvals and the signing of definitive transaction agreements on terms “satisfactory to the parties”.

Swiber said in a statement that it was currently “reviewing and evaluating” the proposal and that no definitive or binding agreements have been agreed.

Earlier this year, Swiber failed in a bid to win new investment from US-listed containership giant Seaspan after striking a $200m deal in March last year.

The transaction would have seen Swiber diversify into the LNG power sector in Vietnam.

But in early January Swiber said that “certain conditions”, including those relating to the transfer of some assets, debt restructuring and the $1bn LNG project itself, were not met.

Swiber said at the time that its judicial managers remained “open to considering other options for the restructuring of the company”.