1950, Qingdao Daxin Wire Asa, Address: Shenyang Road, Qingdao, Sina
1967, anarana Qingdao Wire Asa, Relocation fanorenana indray, Address: afovoan'ny Road Shandong, Qingdao, Sina
1985, anarana Qingdao Cable Asa, Factory fanitarana
1995 Relocation fanorenana indray, Address: No.243 Jia 308 Highway Qingdao, Sina
2000 Ny RHH Cable sy THHN tariby no Listed By Ul
2011 Relocation fanorenana indray, Address: No.16, Jifalongshan Road, Fiarovana ny tontolo iainana Industry Park, Jimo, Qingdao, Sina