Obtaining an E-7 visa as a chef in South Korea?

Hi everyone. My boyfriend is interested in obtaining an E-7 visa to live and work as a chef in South Korea. He is a trained chef with an Associates degree in culinary arts and has over four years of professional experience. Since he does not have a BA, he wouldn't be able to teach English like me. So, does anyone know how difficult it is to obtain an E-7 visa and find a job in South Korea? Any information would be greatly appreciated.

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