Kuwait work visa closure

Hi to everyone. I would like information about the closure of a work visa (18 type) in Kuwait in the following situation: if the worker for any reasons cannot come back to kuwait to close his work visa what happen to that visa?
Company can in case close it paying a fine or just visa will remain open until it expires because company cannot close it without worker?
Company may receive any fine because of that work visa not closed?
Where can I find detailed information about these questions?
Thanks a lot for the kind information

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