The South Korea’s flatfish aquaculture industry, which started from 1987, had consistently grown since then and in the late 2010s, when the number of farms had rapidly increased, price competition had become fierce, new alternative seafood including salmon, etc. had emerged and farmers had got smaller, they finally faced a sudden crisis. The Healthy Fisheries Association was established by the second generation of Jeju flatfish farming in order that farms located in Jocheon, Seongsan, Pyoseon and Namwon in the Eastern region of Jeju would culture and supply the highest-quality and healthiest flatfish in the world suitable for trends by building a flatfish farming system through the modernization and specialization of flatfish farming from 1989.