{
  "asset_id": "M4701",
  "asset_name": "3 Main Mine",
  "asset_type": "Coal Mine",
  "operating_status": "operating",
  "operating_sub_status": "operating",
  "country": "Zimbabwe",
  "state_province": "Matabeleland North",
  "latitude": -18.3322029,
  "longitude": 26.3954687,
  "capacity_value": 1.44,
  "capacity_unit": "Mtpa",
  "wiki_url": "https://www.gem.wiki/3_Main_Mine",
  "location_id": "M4701",
  "unit_id": null,
  "unit_name": null,
  "source_id": 10,
  "url": "/assets/M4701",
  "ownership_graph_url": "/ownership/graph?root=M4701&direction=up",
  "eventual_owners_url": "/owners?asset_id=M4701",
  "project_name": "3 Main Mine",
  "upstream_entity_count": 7,
  "coal_mine_fields": {
    "accuracy_rating": null,
    "cmm_emissions_co2e_100_years": "0.26",
    "cmm_emissions_co2e_20_years": "0.73",
    "capacity_mtpa": "1.44",
    "closing_year": null,
    "coal_grade": "Met",
    "coal_output_annual_mst": null,
    "coal_type": "Bituminous",
    "coalfield": "Hwange",
    "company_hqs": "Zimbabwe",
    "complex_name": null,
    "country_area": "Zimbabwe",
    "depth_accuracy": "Estimate",
    "gem_coal_mine_methane_emissions_estimate_m_tonnes_yr": "0.0088",
    "gem_coal_mine_methane_emissions_estimate_mcm_yr": "13.15",
    "gem_mine_id": "M4701",
    "gem_wiki_page_eng": "https://www.gem.wiki/3_Main_Mine",
    "gem_wiki_page_non_eng": null,
    "gas-level_rating": null,
    "gas-level_rating_appraisal_year": null,
    "has_associated_cmm_mitigation_data": "N",
    "has_associated_plume_data": "N",
    "has_mine_boundary_and_methane_emissions_sources_data_": null,
    "iso_code": "716.0",
    "latitude": "-18.3322029",
    "location": null,
    "location_non_eng": null,
    "location_accuracy": "Approximate",
    "longitude": "26.3954687",
    "msha_id": null,
    "methane_emissions_factor": "1.6",
    "methane_gas_content_m_3_tonne": "13.7",
    "mine_depth_m": null,
    "mine_depth_m_2": "494.0",
    "mine_name": "3 Main Mine",
    "mine_name_non_eng": null,
    "mine_name_akas": "3M, 3 Main Underground, 3 Main North",
    "mine_site_status": null,
    "mine_size_km2": null,
    "mine_size_km2_2": null,
    "mine_type": "Underground",
    "mine_unit_type": null,
    "mine_boundary_and_methane_emissions_sources_data_available_": "N",
    "mining_method": "Bord and Pillar",
    "opening_year": "2005.0",
    "owners": "Hwange Colliery Co Ltd",
    "owners_non_eng": null,
    "owners_gem_entity_id": "E100000131681",
    "parent_company": "HCCL Holdings Ltd [100.0%]",
    "parent_gem_entity_id": "E100000131681 [100.0%]",
    "percentage_of_met_coal": null,
    "percentage_of_thermal_coal": null,
    "prefecture_district": null,
    "primary_consumer_destination": null,
    "primary_consumer_destination_gem_wiki": null,
    "primary_consumer_destination_name": null,
    "production_mtpa": "0.6",
    "project_phase": null,
    "project_type": null,
    "reason_for_closure": null,
    "reference_type": null,
    "region": "Africa",
    "reported_coal_mine_methane_emissions_thousand_tonnes_ch4": null,
    "reported_coal_mine_methane_emissions_thousand_tonnes_co2_equivalent": null,
    "reported_life_of_mine": null,
    "reported_year_of_mine_life": null,
    "reported_year_of_percentage_split": null,
    "reserve_to_production_ratio_r_p": "66.0",
    "source_id": null,
    "state_province": "Matabeleland North",
    "status": "Operating",
    "status_detail": null,
    "subregion": "Sub-Saharan Africa",
    "total_reserves_proven_and_probable_mt": "40.0",
    "total_resource_inferred_indicated_measured": "285.0",
    "workforce_accuracy": "Exact",
    "workforce_size": "500.0",
    "year_of_production": "2025.0",
    "year_of_reported_coal_mine_methane_emissions": null,
    "year_of_total_reserves_recorded": "2021.0",
    "unit_name": null,
    "wiki_url": "https://www.gem.wiki/3_Main_Mine"
  }
}