Car manufacturer Group Lotus is to make more than 230 staff redundant out of a total workforce of 1,500.
The Norfolk-based company said in November that it would cut up to 350 jobs after the loss of a major contract.
After consultation with staff the group has selected 237 permanent staff for provisional redundancy.
In a statement the company said: “We regret it is necessary to downsize the UK operation through all areas of the business other than manufacturing.”
The company has blamed dramatic changes in the motor industry round the world for the cuts.