Began as Goryeong Hanwa in 1953, this specialized manufacturer is Korea's largest and greatest earthen roof tile manufacturer with 60 years of tradition. Its quality products are used for the construction of major cultural heritages in Korea every year. It is currently making the roof tiles used to restore the Gyeongbokgung Palace and its products are also used to repair and restore the Changdeokgung Palace, Tongyeong Sebyeonggwan, and Janganmun Gate of Suwon Fortress in addition to the Gyeongbokgung Palace.