| Type of Contract | Sales and Purchase Agreement (SPA) | Notarized Joint Operations Agreement (KSO) | Stockpile area and jetty reservation agreement |
| Yearly Volume | 300,000+ tons per year (monthly amounts) | 500,000–1,500,000+ tons per year (multi-year) | 50,000–120,000 tons (steady stock held) |
| Price Basis | Formula based on the weekly ICI 3 / ICI 4 index (Coalindo and Argus) | Mine production cost plus a fixed operator margin | Index formula adjusted for coal quality (energy, AFT, sulfur) |
| Mine and Seam | Coal assigned at the mine across 21 partner IUP-OP mines | Set mine coal layer (from a total area of over 22,292 ha) | Separate terminal stockpile area, with coal from one layer kept apart |
| Loading Date Booking | 60-day rolling laycan nomination window | Yearly shipping plan, with loading dates adjustable within 60 days | Barge dispatched on 72 hours' call |
| Quality and Lab Testing | Independent loading-port certificate (SGS or Sucofindo) | Samples at the mine plus automatic mixed samples from the belt | Ongoing stockpile samples plus automatic ISO belt sampling |
| Loading Points | Taboneo and Muara Satui deep-water anchorages | Taboneo, Muara Satui & Muara Berau anchorages | 10 South Kalimantan river jetties (Barito and Satui corridors) |
| Inspection Rights | Right to visit the loading port and watch the inspector before shipping | Full inspection of the mine, haul roads and production records | Terminal yard visit and independent stockpile sampling |