PT Bukaka Mandiri Sejahtera is a subsidiary entity whose 47.50% shares are owned by the Company. Established in 2012, the Last Amendment Deed of BMS No. 26 dated June 28, 2024 which has obtained the Decree of the Ministry of Law and Human Rights of the Republic of Indonesia No. AHU-0038586.AH.01.02 dated June 28, 2024, PT Bukaka Mandiri Sejahtera runs the industrial and trade business sector which includes the mining processing industry and the ferronickel mining trading business..
Members of the Board of Commissioners and Directors of BMS as of June 28, 2024 are as follows:
| BOARD OF COMMISSIONERS: | |
| President Commissioner | : Irsal Kamarudin |
| Commissioner | : Achmad Kalla |
| BOARD OF DIRECTORS: | |
| President Director | : Suhaeli Kalla |
| Director | : Abdullah Afifuddin Suhaeli |
| Director | : M. Faisal Suhaeli |
| Director | : Teguh Wicaksana Sari |