How do I find cargo ships from Spain to bring in goods to the UK, for example spanish foods?

My cousin is starting up a Spanish restaurant and wants to import fresh food from Spain via a cargo ship (cheapest option) How does he go about organizing this?How do I find cargo ships from Spain to bring in goods to the UK, for example spanish foods?
im not completly sure but i think he should call places that do cargoing from spain and see if he can get some connections. look online you must be able to get a website.

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