- Royal Golden Twinstar.Co.,Ltd
- Address:Jl.Marelan Raya.No.17 C-R Medan Sumatera Utara 20255 Indonesia
- Mtronic Inc
- Address:Jl.Sudirman #21 Jakarta Pusat jakpus 11321 Indonesia
- Pt. Buanatama Metalindo
- Address:Jl. Siantar No. 16, Cideng Jakarta 10150 Indonesia
- PT.Husada
- Address:Jl.Margonda Raya No.44 Depok Jawa Barat 16424 Indonesia