Headquarters : San 12, Hyoam-ri, Jangan-eup, Kijang-gun, Busan Metropolitan City
PHWR D&D Center : 430 beonji, Nasan-ri, Yangnam-myeon, Gyeongju City, Gyeongsangbukdo Province
Gyeongju Office : Fl. 3, Eowoolimgwan, 1655, Bulkuk-ro, Moonmoodaewang-myeon, Gyeongju City, Gyeongsangbukdo Province
Tel : 052-700-9050 / 051-711-9050