Spanghero workers' concern over jobs
15 February 2013 Last updated at 11:17 GMT
The French government has suspended the licence of processing firm Spanghero, saying it had "knowingly" sold horsemeat as beef.
The company has strongly denied the allegation, saying it only ever dealt in meat it believed to be beef.
The BBC's Chris Bockman reports from outside the plant near Toulouse in south west France.