Nanum (CEO Song Cheol-geun), an agricultural corporation, launched Yulpi glutinous rice budak using Yulpi, the inner shell of chestnuts.

The product was developed to satisfy the taste and nutrition at the same time by manufacturing Yulpi and glutinous rice at the optimal ratio. It is characterized by utilizing the flavor of the raw material without adding additives. It also received a patent as a method of manufacturing Yulpi.