Department store chain Yata, the Japan-themed retail unit of Sun Hung Kai Properties, is expanding as sales rise on the back of the weaker yen that is making goods cheaper. Yata's total retail area will increase by one-third to 400,000 square feet after three new stores are opened between June and September. A new store in Tsuen Wan will be the firm's first in two years. It last opened one, a supermarket in San Po Kong, in September 2011. The other two shops will be supermarkets in Tuen Mun and Mong Kok.