| Category | Description | ||
|---|---|---|---|
| 510090 | Geological Studies | All | View Approved Contractors |
| 510100 | Gravitational Studies | All | View Approved Contractors |
| 510105 | Hydrographic Inspection Survey | All | View Approved Contractors |
| 510110 | Navigation & Positioning - Onshore | All | View Approved Contractors |
| 510120 | Oil Exploration Related Studies - Others | All | View Approved Contractors |
