- Pt. Petambangan Kepulauan Nusantara
- Address:Jalan Jaksa No.11, Kebon Sirih
- Lombok Pumice Stone Export Quality Indonesia
- Address:Jl. Cendrawasih No. 8 Cakranegara Mataram. Lombok
- Kartelindo Sarana, PT.
- Address:Jl. Tanjung IV No. 7, Kranggan Permai, Jatisampurna
- CV.Bara Jaya Abadi
- Address:Karah indah 2
- dwi putra hasta pt.
- Address:jl. warung buncit raya no. 7