{
  "use_case_id": "mine-site-drone-survey",
  "use_case": "Quarry & mine drone surveys",
  "quantity": null,
  "unit": "campaign",
  "country": "NG",
  "currency": "EUR",
  "estimate": {
    "low": 1200,
    "high": 3000,
    "currency": "EUR",
    "based_on": 1
  },
  "method": "published unit price × quantity (exact unit conversions only); filtered to the best region match; older prices only if nothing newer",
  "notes": [
    "No benchmark specific to NG; the range uses benchmarks from other regions. Local prices can differ a lot.",
    "No quantity given: costs are per 1 campaign.",
    "Arithmetic on published prices, not a quote: scope, access, permits, minimums and travel change real prices. Ask suppliers via submit_rfq."
  ],
  "basis": [
    {
      "kind": "benchmark",
      "provider_id": null,
      "description": "Annual drone survey campaign on a quarry (flight, control points, volumetrics note) (C-DRONE price guide, France, observed 2026 range, excl. VAT)",
      "unit_price": {
        "low": 1200,
        "high": 3000,
        "currency": "EUR",
        "unit": "per campaign"
      },
      "region": "FR",
      "region_match": "other_or_global",
      "source_url": "https://c-drone.fr/en/guides/quarry-3d-model-annual-production-declaration-drone-price/",
      "as_of": "2026-09-22",
      "older_price": false,
      "unit_conversion": null,
      "cost": {
        "low": 1200,
        "high": 3000,
        "currency": "EUR"
      },
      "used_in_range": true
    }
  ],
  "available_units": [
    "campaign",
    "face"
  ],
  "fx_date": "2026-10-27"
}