BBC story updated22 Jul 2024 10:12
The Business Secretary, Jonathan Reynolds, is due to give a written statement to Parliament later on Monday.
The GMB union, which represents many of the shipyard's workers in Belfast, said staff were concerned about the situation but were hopeful for a resolution.
"There is genuine fear, but certainly on the ground it is business as usual and our members are turning up for work today to carry out their roles," said GMB senior organiser Alan Perry.
"Yes it’s a wee bit rocky at this moment in time, but certainly the feedback that we’re getting is that there will be some sort of package and they will be able to deliver on the contracts in relation to the Royal Navy ships," he told Radio Ulster.
Mr Perry said the union will meet management on Tuesday morning but he added that there were no indications coming directly from the firm that they should be concerned about the shipyard.
"Hence why we are quite positive that the future for many years to come will be secure," he said.
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