Ceradyne is laying off 93 employees at its Lexington plant, which manufactures body armor.
Ceradyne's parent, 3M, filed notice of the layoff Monday under the Worker Adjustment and Retraining Notification Act.
Fayette County Judge-Executive Jon Larson said he received a package regarding the layoffs late Monday.
Larson said the information indicated that employees were being notified of the layoff Sunday and Monday and that the expected date of separation had been set for June 10.
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Severance packages are being provided.
According to the information sent from 3M, the layoff is necessary because of a downturn in the company's body armor business as a result of reduced funding for body armor from the Defense Department.
The layoff will not result in the plant's closing, according to the information Larson received.
Ceradyne announced in October that it was being acquired by global products company 3M, which makes Post-it notes and dental products, in an $860 million deal.