1950, Qingdao Daxin Hlau Tej hauj lwm, chaw nyob: Shenyang Road, Qingdao, Tuam Tshoj
1967, renamed Qingdao Hlau Tej hauj lwm, nyaj reconstruction, chaw nyob: Nruab nrab ntawm Shandong Road, Qingdao, Tuam Tshoj
1985, renamed Qingdao Cable Works, Hoobkas expansion
1995 nyaj reconstruction, chaw nyob: No.243 Jia 308 Highway Qingdao, Tuam Tshoj
2000 Peb RHH Cable thiab THHN hlau tau Yog By UL
2011 nyaj reconstruction, chaw nyob: No.16, Jifalongshan Road, Environmental Protection Kev lag luam Park, Jimo, Qingdao, Tuam Tshoj