Approtium P1 Naver map Kakao map 35, Cheoyong-ro, Nam-gu, Ulsan, Republic of Korea 052-270-8500 052-270-8599 Approtium P2 Naver map Kakao map 169, Yongjam-ro, Nam-gu, Ulsan, Republic of Korea 052-240-7221 052-240-7229 Approtium P3 Naver map Kakao map 34, Hoehak 2-gil, Onsan-eup, Ulju-gun, Ulsan, Republic of Korea 052-240-3400 052-240-3490 Approtium P4 Naver map Kakao map 41 Dokgot 1-ro, Daesan-eup, Seosan-si, Chungcheongnam-do 041-681-3543~6 041-681-3547 Approtium Seoul Office Naver map Kakao map Yonsei University’s Severance Building 20F, 10, Tongil-ro, Jung-gu, Seoul, Republic of Korea 02-523-2870 02-585-8681
