Here are the directions to Golden Rule. Head Office / Research Center / Measuring Instrument Factory 1 Songdo BRC Smart Valley Knowledge Industry Center #1805, 30 Songdo Mirae-ro, Yeonsu-gu, Incheon Tel. 032 - 817 - 1240 / FAX. 032 - 817 - 1250 Sales Department/ Business Department #1202, Building E, Knowledge Industry Center, BRC Smart Valley, 30 Songdo Mirae-ro, Yeonsu-gu, Incheon Tel. 070 - 7005 - 9672 ~ 3 2nd measuring instrument factory 10-5, Expo-ro 339beon-gil, Yuseong-gu Daejeon Tel. 070 -7878 -6176 ~ 7 Medical equipment / sports equipment 3 factory 30, Gongdan-daero 190beon-gil, Uiwang-si, Gyeonggi-do Tel. 070 -7005 -9674 ~ 5