Dejphon Chansiri purchased Sheffield Wednesday for £37.5 million in 2015, but much of his family’s fortune comes from Thai Union Group, a seafood empire founded by his father, Kraisorn Chansiri.

I don’t know how he can’t see what’s going wrong.” At the top table sat Chansiri – son of Kraisorn Chansiri, founder of the multi-billion-pound Thai Union Group, the world’s biggest ...