The ex-staff were all awarded 90-days' pay after the Dundee tribunal ruled that the company breached the terms of the Labour Relations (Consolidation) Act by failing to inform them over the pending redundancies, according to Dundee newspaper The Courier.
The case was brought against the management of Perth-based Spirax, after it completed a £100,000 calendar binding order for Pirelli just three days before staff were made redundant.
The tribunal heard that employees were not notified about the move to close the company, which was ratified in October, as management had feared staff would not complete the significant order.
The panel said that while Spirax took an "admirable attitude to the payment of trades creditors, they entirely ignored obligations, which have equal force in respect of their duty to their employees".
It added that the management took "extensive steps to ensure that all of their trade creditors were paid in full".
Speaking at the time, Renz (UK) praised the company for fulfilling its obligations to suppliers following its closure last year with managing director Iain Bullock praising the company for its "noble actions".
Former managing director Hamish Milne could not be reached for comment.