Baek Gwang-hoon has passed down the Onggi manufacturing method in Yeongdeok region over a number of generations, adhering to the traditional Onggi manufacturing method, and has been making Onggi on a single road for more than 40 years. Moreover, it is the last bastion of Onggi-il in Yeongdeok, North Gyeongsang Province, where Ong-saeng was the most successful.

☆ Onggi is a Korean traditional craft, which has been developed since the Neolithic Age, using clay and natural ash to make earthenware at a high temperature of 1,200°C.

Onggi is a clay-baked bowl, which has numerous fine holes and passes through air and moisture, but does not pass through water molecules with thick particles. So the onggi can breathe, and the contents can be kept fresh without leaking.

This onggi-making technology developed in Ulsan in 1957 when Mr.Heo Deok-man from Yeongdeok-gun, Gyeongsangbuk-do moved to Ulsan and settled in Gosan-ri, Onyang-eup to train the younger generation. Since then, the current onggi village has been formed.

Oegosan Onggi Village is the largest onggi village in Korea. During the heyday of the 1960s, the nation's best craftsmen gathered to achieve prosperity and continued the tradition of traditional Korean onggi.

The Ulju Oegosan Onggi Association, a functional holding organization, is a group of eight members who have been engaged in onggi production for at least 30 to 50 years, and has sufficient traditional onggi making techniques and techniques such as molding traditional onggi (feet) spinning, making and simulating traditional glaze, and traditional oysters.