I live in Korea and I know this brand. It is a Korean brand. Many Korean duty-free shops have this brand, and so do Korean department stores. It belongs to one company and one boss, and Lotte Duty Free Shop also has it in official website. But this brand is translated in Korean. The name of this company is (Daewoo Products), and DIASTAR is printed on the box. If you buy things in a duty-free shop, Korean brands can do it.