The Van Mai dam xanh (Bangana lemassoni) fish has long been famous for its unique and delicious flavour, earning a spot on the menus of many restaurants and attracting food connoisseurs. In recent years, residents in Van Mai commune, Mai Chau district, have expanded their fish farming areas and striven to build a strong reputation for their product. They are also working to establish it as an OCOP (One Commune, One Product) item to increase their income.