If his contract doesn't state anything to the contrary, I believe at minimum he is entitled to 3 weeks salary for every year worked = in his case 25 years x 3 weeks = 75 weeks or about 1.5 years last salary (not an average or his original pay but his latest).
However, some employers do state they will pay more than the labour law stipulates. He should check his contract. His employer is NOT allowed to pay less than the minimum the labour law has approved. If in doubt or dispute, he should contact a reputable lawyer. This is a substantial sum of money.
If his contract doesn't state anything to the contrary, I believe at minimum he is entitled to 3 weeks salary for every year worked = in his case 25 years x 3 weeks = 75 weeks or about 1.5 years last salary (not an average or his original pay but his latest).
However, some employers do state they will pay more than the labour law stipulates. He should check his contract. His employer is NOT allowed to pay less than the minimum the labour law has approved. If in doubt or dispute, he should contact a reputable lawyer. This is a substantial sum of money.
Signature line > "You can't fix stupid"