You can get the mining company database in Indonesia through several sources, both independent platforms and official government systems:

1. Mine.id ▪ Mine Company List
   Provides a database of mining companies in Indonesia that is curated and served in a concise way for reference, research, and initial information search.
   Access ▪: https://www.tambang.id/daftar-perusahaan-tambang

2. MODI (Minerba One Data Indonesia) ▪ Ministry of ESDM
   Official government data systems containing information regarding mineral and coal mining companies, including types of permits, commodities, locations, and clearance status.
   Access ▪: https://modi.esdm.go.id

3. MOMI (Minerba Online Monitoring System)
   Mine monitoring systems that show spatial data, clearance areas, and mining companies operating information.
   Access ▪: https://momi.minerba.esdm.go.id

4. AHU Online ▪ Ministry of Law and Human Rights
   Used to check the legality of business agencies, including the deed of establishments, stewards, and the status of mining companies.
   Access ▪: https://ahu.go.id

5. OSS (Online Single Submission)
   National-enforcement systems that can be used to search business permits, including mining sectors.
   Access ▪: https://oss.go.id

For further analysis or commercial-based drain data, there are also mining industrial intelligence providers like Promining And a data platform of some kind.