Siptu and Meat Industry Ireland are to meet today to discuss pay.
It comes as repeat Covid 19 testing in meat plants is on hold until next week.
SIPTU is meeting Meat Industry Ireland today to outline its demands.
The union is seeking a sick pay scheme for workers and a base wage of 12.30 per hour.
It comes after the head of the HSE said it was the "right decision" to pause Covid-19 testing in meat plants in response to more demand in the community.
Mass testing of factory workers is on hold until next week, with resources instead being focused on people with symptoms contacting their GP.
More than 20 thousand people were referred for tests between Monday and Tuesday - which is double the number from the same two days last week.