Moy Park has been put up for sale by its Brazilian owner JBS in an effort to slash debt, but its chief executive Janet McCollum said it was “business as usual”.
The poultry business, which employs 6,300 staff in Northern Ireland alone, was only acquired by JBS two years ago for £945m.
Unite regional officer Sean McKeever said it “casts a shadow over its future at a time when it already faces extensive uncertainties as a result of Brexit”.
“We are seeking assurances that any new owner will demonstrate their long-term commitment to our three thousand members in the company,” he said.
“We want to see a meaningful investment plan and confirmation that they will continue to engage with Unite as the representative body for more than half the workforce.”