The fate of about 600 jobs at the Procter and Gamble plant in Co Tipperary hang in the balance with a major decision expected on future production at the plant in the coming weeks.
The company is currently undertaking an assessment of its Irish and European and global operations with the view to possibly ceasing production at one of its plants, a review which is expected to be completed by March.
Labour Senator Kathleen O'Meara has stated that there is a "definite air of apprehension" in the town about the future of the plant.
"I understand there is an announcement pending with regard to a study and I hope it will not be a negative announcement for the Nenagh plant," she said.
Last March management of the multinational cosmetic company informed workers of their decision to terminate 75 jobs. Some 15 short-term temporary staff and 60 long-term staff were let go, a move that was attributed to seasonal variations.
The company also informed staff that a "supply chain sourcing study" was to be undertaken at the plant.
The company's Newcastle-based press officer Marion Baker stated on Wednesday that "the study was still ongoing and not finalised yet".
"No decisions have been taken yet," she said. The Procter and Gamble plant has been in Nenagh for over 25 years and is the largest employer in the town.
The plant chiefly manufactures products for the Max Factor and Cover Girl make-up ranges and also produces Oil of Olay skin products and shower gel for the Hugo Boss and Laura Biagiotti range.
The company is the major employer in the town and puts an estimated €15 million into the local economy every year.