Tribal Group PLC (AIM:TRB), the education support services group, saw shares slump 15% to 42.2p after providing an update on its Singapore contract.
It said Nanyang Technology University has attempted to terminate its contract with Tribal and reserved its right to claim damages.
However, Tribal said in a statement it has rejected this claim and is considering options regarding the next appropriate steps.
As a result, accounts for the year ended 31 December 2022 will now be released on 24 March.
This, the company said, will allow for the appropriate time to consider the impact of the contract termination, in particular the accounting treatment of a £4.5mln contract provision which was included in previous expectations.
Last month, Tribal said performance has been impacted by implementation delays on the Singapore contract, which was resulting in increased costs and lower revenue.