Silver

Silver mines: where silver is mined

Where silver is mined: Mexico (24%), Peru (14%), China (13%) lead world mine production in 2025. Below, country by country, are 184 mines from open mine databases and 83 projects held by listed companies.

The full silver story covers trade flows, uses and which governments list it as critical.

Silver mines in Africa

10 African countries have silver mines or projects here: Morocco, Zambia, Botswana, South Africa, DR Congo, Ghana, Namibia, Côte d'Ivoire, Mozambique, Nigeria.

Silver mines in Mexico

Mexico. Mexico mined 24% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
BuenavistaProducing338,000 t (2019)
PenasquitoNewmontProducing52,753 t (2018)
CozaminProducing16,258 t (2019)
BolivarSierra Metals Inc.Producing8,995 t (2019)
SaucitoFresnillo plcProducing561 t (2018)
FresnilloFresnillo plcProducing429 t (2018)
San JulianProducing415 t (2018)
La ColoradaProducing232 t (2019)
PalmarejoProducing191 t (2019)
CusiSierra Metals Inc.Producing29.1 t (2019)
Alamo DoradoClosed19.1 t (2017)
HerraduraProducing13.4 t (2018)
Pinos AltosProducing5.76 t (2019)
Noche BuenaProducing4.73 t (2018)
DoloresProducing3.33 t (2019)
Mercedes3.27 t (2014)
San Dimas2.7 t (2008)
La IndiaProducing2.33 t (2019)
CienegaProducing1.89 t (2018)
Soledad-DipolosClosed1.34 t (2013)

Listed companies' projects

ProjectCompanyStageRegion
San Celso and Donovan 2 (Mexico)Alien MetalsExplorationZacatecas region

Silver mines in Peru

Peru. Peru mined 14% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
ToquepalaProducing231,700 t (2019)
AntapaccayClosed197,600 t (2019)
CuajoneProducing156,400 t (2019)
YauliProducing140,291 t (2018)
ConstanciaProducing113,825 t (2019)
ChungarProducing57,460 t (2018)
Tajo NorteProducing43,580 t (2019)
MarcapuntaProducing43,394 t (2019)
YauricochaSociedad Minera Corona S.A.Producing36,779 t (2019)
Pucarrajo11,590 t (2001)
Cerro de PascoProducing11,200 t (2018)
UchucchacuaCompania de Minas Buenaventura S.A.A.Producing331 t (2019)
HuaronProducing107 t (2019)
JulcaniCompania de Minas Buenaventura S.A.A.Producing81.1 t (2019)
MorocochaProducing75.3 t (2019)
AlpamarcaClosed46.5 t (2018)
MallayCompania de Minas Buenaventura S.A.A.Producing16 t (2018)
YanacochaProducing14.9 t (2019)
RecuperadaCompania de Minas Buenaventura S.A.A.14.4 t (2013)
Quiruvilca8.35 t (2011)
Lagunas NorteMinera Barrick Misquichilca S.A. (MBM)Producing7.62 t (2018)
TantahuatayCompania de Minas Buenaventura S.A.A.Producing5.04 t (2019)
TambomayoCompania de Minas Buenaventura S.A.A.Producing3.09 t (2019)
Shahuindo2.24 t (2017)
OrcopampaCompania de Minas Buenaventura S.A.A.Producing1.3 t (2019)
La ZanjaProducing0.98 t (2019)
BreapampaCompania de Minas Buenaventura S.A.A.Closed0.428 t (2015)
Shila-PaulaCompania de Minas Buenaventura S.A.A.0.239 t (2013)
AntapiteCompania de Minas Buenaventura S.A.A.0.016 t (2013)
PoracotaCompania de Minas Buenaventura S.A.A.0.015 t (2013)
Conga
HaquiraDevelopment

Silver mines in China

China. China mined 13% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
Miaogou & SanguikouProducing74,435 t (2018)
AsheleProducing44,528 t (2018)
ZijinshanProducing3.24 t (2018)
Shanggong1.83 t (2017)
Yixingzhai1.35 t (2017)

Listed companies' projects

ProjectCompanyStageRegion
Caijiaying Zinc-Gold Mine (Zones II, III, V, VIII)Griffin MiningProducingZhangjiakou

Silver mines in Bolivia

Bolivia. Bolivia mined 5.8% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
San Bartolome121 t (2017)
San VicenteProducing105 t (2019)

Silver mines in Chile

Chile. Chile mined 5.4% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
AndinaProducing195,531 t (2018)
CentinelaProducing195,500 t (2019)
Ministro HalesProducing195,485 t (2018)
CandelariaProducing146,330 t (2019)
Lomas BayasProducing78,900 t (2019)
SalvadorProducing60,840 t (2018)
Punitaqui5,500 t (2017)
La CoipaKinross Gold5.05 t (2013)
El PenonProducing4.96 t (2019)
Minera FloridaProducing2.27 t (2019)
Guanaco and AmancayaProducing1.72 t (2019)
Cerro Bayo0.616 t (2008)
Petorca0.508 t (2001)

Listed companies' projects

ProjectCompanyStageRegion
Pampa Medina (Sierra de Medina Project)Marimaca CopperExplorationAntofagasta Region
Andacollo Oro Gold Project (Andacollo Gold)Galantas GoldCare and maintenanceCoquimbo Region

Silver mines in Poland

Poland. Poland mined 5% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
Polkowice-SieroszowiceProducing195,700 t (2018)
RudnaProducing186,200 t (2018)
LubinProducing70,100 t (2018)
Polkowice-Sieroszowice - Gaworzyce
Polkowice-Sieroszowice - Polkowice

Silver mines in Russia

Russia. Russia mined 4.6% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
KupolKinross GoldProducing14 t (2018)

Silver mines in the United States

United States. The United States mined 4.2% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
Bingham CanyonProducing203,900 t (2018)
Pinto ValleyProducing53,356 t (2019)
Greens CreekHecla MiningProducing245 t (2007)
RochesterProducing106 t (2019)
Galena58.3 t (2005)
Goldstrike (Nevada Gold Mines)Nevada Gold Mines (Barrick/Newmont)Producing34.1 t (2016)
Cortez (Nevada Gold Mines)Nevada Gold Mines (Barrick/Newmont)Producing32.9 t (2016)
Carlin (Nevada Gold Mines)Nevada Gold Mines (Barrick/Newmont)Producing26.3 t (2018)
Cripple Creek & VictorProducing9.13 t (2019)
Midas

Listed companies' projects

ProjectCompanyStageRegion
Blue Moon zinc-gold-silver-copper project (Blue Moon mine)Blue Moon MetalsDevelopmentMariposa County
Empire Mine (open pit and deep sulphide)Phoenix CopperDevelopmentIdaho
Pilot MountainGuardian Metal ResourcesDevelopmentNevada
Springer tungsten mine and mill (Sutton 1/2, George beds)Blue Moon MetalsDevelopmentPershing County
Western Milling LLC gravity mill, Sodaville (50% JV with Muletown Enterprizes)Great Western Mining CorporationDevelopmentSodaville
Apex germanium-gallium-copper mineBlue Moon MetalsExplorationWashington County
Defender-Pine Crow Tungsten Project (Defender, Dough God, Pine Crow, Widowmaker historic mines)Great Western Mining CorporationExplorationMineral County
Horseshoe claims block (Horseshoe, White Knob, Blue Bird, Windy Devil)Phoenix CopperExplorationIdaho
Hub Mines tungsten projectBlue Moon MetalsExplorationNevada
IMA tungsten-silver mine (Ima Mine), incl. lower tailings impoundmentAmerican TungstenExplorationLemhi County
Mineral Jackpot (Silver Moon, Silver Bell, Ming Toy, Bass; "Cabin Rock") gold-silverGreat Western Mining CorporationExplorationMineral County
Navarre Creek gold projectPhoenix CopperExplorationIdaho
Olympic Gold Project (OMCO Mine, Trafalgar Hill, Rhyolite Dome, West Ridge)Great Western Mining CorporationExplorationEastern Mineral County
Red Star (Empire district)Phoenix CopperExplorationIdaho
Rock House Group (Southern Alteration Zone)Great Western Mining CorporationExplorationMineral County
Turner copper-gold VMS depositBlue Moon MetalsExplorationOregon
West Huntoon gold-silver-copper (Huntoon Copper Project)Great Western Mining CorporationExplorationMineral County

Silver mines in Australia

Australia. Australia mined 3.8% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
Mount Isa / Ernest Henry complexGlencoreProducing158,000 t (2019)
CanningtonSouth32Producing124,750 t (2019)
Prominent HillProducing102,479 t (2019)
RoseberyProducing75,721 t (2018)
McArthur RiverGlencoreProducing55,300 t (2019)
CSAProducing43,500 t (2019)
Golden Grove26,047 t (2015)
TrittonProducing25,004 t (2020)
CenturyClosed16,457 t (2016)
Mount Garnet10,324 t (2012)
Olympic DamBHPProducing5,098 t (2019)
ThalangaProducing2,024 t (2020)
Broken Hill38.7 t (2008)
BoddingtonNewmontProducing19.9 t (2019)
CadiaProducing18.7 t (2018)
TelferProducing13.2 t (2018)
Endeavor7.02 t (2016)
Cracow3.16 t (2011)
Ernest Henry and Mount Isa - Mount Isa

Listed companies' projects

ProjectCompanyStageRegion
Cowal Gold OperationEvolution MiningProducingNew South Wales
Northparkes Copper-Gold MineEvolution MiningProducingNew South Wales
Mt Mulgine (Mulgine Trench, Mulgine Hill, Camp/Black Dog/Bobby McGee gold)Tungsten MiningDevelopmentWestern Australia
Tallebung Tin-Tungsten-Silver ProjectSky MetalsDevelopmentNew South Wales
Taronga Tin Project (Emmaville district, incl. Tin Beetle and regional ELs)First TinDevelopmentEmmaville
Bushranger copper-gold project (Racecourse and Ascot prospects)Xtract ResourcesExplorationLachlan Fold Belt
Copperhead porphyry copper (Mo-Ag) projectRockfire ResourcesExplorationQueensland
Earaheedy Zinc-Lead-Silver ProjectRumble ResourcesExplorationWestern Australia
Elizabeth Hill silverAlien MetalsExplorationWestern Australia
Lighthouse tenements: Double Event, Kookaburra and Brigalow goldfieldRockfire ResourcesExplorationNorth Queensland
Marengo goldfield (Cu-Au-Ag), incl. Copper DomeRockfire ResourcesExplorationQueensland
Pinderi Hills (Ag-Pb-Zn, Li)Alien MetalsExplorationWestern Australia
Plateau gold-silver deposit (Lighthouse tenements)Rockfire ResourcesExplorationNorth Queensland
Theirman Mines tungsten prospect (Tallebung EL 6699, ~20 km N of Tallebung deposit)Sky MetalsExplorationNew South Wales

Silver mines in Argentina

Argentina. Argentina mined 3.1% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
AlumbreraProducing17,400 t (2018)
PunaProducing239 t (2019)
Martha44.6 t (2010)
Cerro NegroProducing15 t (2018)
Cerro MoroProducing3.76 t (2019)
Manantial EspejoProducing0.634 t (2019)
CasposoProducing0.078 t (2019)
Puna - Chinchillas
Puna - Pirquitas

Silver mines in India

India. India mined 3.1% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
Rampura AguchaHindustan ZincProducing357,571 t (2019)
Rajpura DaribaHindustan ZincProducing117,529 t (2019)

Silver mines in Kazakhstan

Kazakhstan. Kazakhstan mined 2.4% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
AktogayProducing110,600 t (2018)
BozshakolProducing106,400 t (2018)
Zhezkazgan South and Stepnoy49,011 t (2014)
Zhezkazgan East and West45,741 t (2014)
Akbastau35,541 t (2014)
Zhezkazgan Zhomart30,841 t (2014)
ArtemyevskyProducing27,489 t (2016)
OrlovskyProducing26,838 t (2019)
Nurkazgan18,247 t (2014)
Kounrad12,384 t (2014)
Sayak12,112 t (2014)
Zhezkazgan North10,330 t (2014)
Shatyrkul10,291 t (2014)
Irtyshsky9,733 t (2016)
Kosmurun8,163 t (2008)
Zhezkazgan Annensky8,119 t (2012)
Nikolayevsky1,726 t (2012)
BelousovskyClosed224 t (2011)
Kazzinc - Maleevsky
Kazzinc - Shubinsky

Silver mines in Canada

Canada. Canada mined 1.5% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
LalorProducing97,739 t (2019)
Brunswick52,000 t (2013)
KiddProducing33,500 t (2019)
SelbaieBHPClosed25,319 t (2004)
777Producing15,204 t (2019)
ReedClosed10,933 t (2018)
MintoProducing10,418 t (2018)
SilvertipProducing7,758 t (2019)
Canadian MalarticProducing18.9 t (2019)
LaRonde ComplexProducing9.71 t (2019)
MeliadineProducing6.75 t (2019)
Meadowbank ComplexProducing5.48 t (2019)

Listed companies' projects

ProjectCompanyStageRegion
Macpass (Macmillan Pass) zinc-lead-silver projectFireweed MetalsExplorationYukon
Silver Peak silver projectPower Metal ResourcesExplorationBritish Columbia

Silver mines in Sweden

Sweden. Sweden mined 1.5% of the world's silver in 2025.

Mines

MineOperatorStatusLatest published output
GarpenbergProducing101,000 t (2018)
AitikProducing99,000 t (2018)
ZinkgruvanProducing78,313 t (2019)
The Boliden AreaProducing57,000 t (2018)
The Boliden Area - Kristineberg
The Boliden Area - Maurliden
The Boliden Area - Renström

Silver mines in Indonesia

Indonesia.

Mines

MineOperatorStatusLatest published output
Batu HijauProducing59,103 t (2019)
GosowongPT Nusa Halmahera Minerals (Newcrest Mining Limited 75%)Producing7.81 t (2018)
Tujuh BukitProducing6.31 t (2019)
Mt MuroClosed0.088 t (2014)
Elang

Silver mines in Azerbaijan

Azerbaijan.

Listed companies' projects

ProjectCompanyStageRegion
Gedabek (open pit, Gadir and Gilar-area processing hub, Ugur/Reza open pit)Anglo Asian MiningProducingGadabay district
Gilar (underground gold-copper-zinc mine)Anglo Asian MiningProducingGedabek Contract Area
Zafar (copper-zinc-gold-silver deposit)Anglo Asian MiningDevelopmentGedabek Contract Area
Gosha (small high-grade underground gold mine; Hasan vein)Anglo Asian MiningExplorationWestern Azerbaijan

Silver mines in Brazil

Brazil.

Mines

MineOperatorStatusLatest published output
ChapadaMineração Maracá Indústria e Comércio S/AProducing58,604 t (2018)

Listed companies' projects

ProjectCompanyStageRegion
Cabaçal Cu-Au-Ag VMSMeridian MiningDevelopmentMato Grosso
Molly Gold Project (Molly 1, Molly 2, Vivi, Boomerang)Jangada MinesExplorationPara
Santa Helena Cu-Au-Ag-Zn-Pb VMS (incl. Álamo trend)Meridian MiningExplorationMato Grosso

Silver mines in Morocco

Morocco.

Listed companies' projects

ProjectCompanyStageRegion
Amghas antimony mine (Wildstone Antimony Project)Xtract ResourcesDevelopmentKhenifra Province
Agdz Copper-Silver Project (Agdz and Agdz Est licences)AterianExplorationMorocco
Azrar Copper-Gold ProjectAterianExplorationwestern Anti-Atlas
Wildstone SARL other Moroccan licences (copper, silver, antimony; incl. Ighoud)Xtract ResourcesExplorationCentral Morocco

Silver mines in the United Kingdom

United Kingdom.

Listed companies' projects

ProjectCompanyStageRegion
Parys Mountain Cu-Zn-Pb-Ag-Au VMS (Morfa Du, Northern Copper Zone, Garth Daniel)Anglesey MiningDevelopmentAmlwch
Gairloch Project (Kerry Road deposit)Galantas GoldExplorationScotland
Redmoor Tungsten-Tin-Copper ProjectStrategic MineralsExplorationTamar Valley Mining District
United Downs (Cu-Sn project)Cornish MetalsExplorationCornwall

Silver mines in Zambia

Zambia.

Listed companies' projects

ProjectCompanyStageRegion
Silverking copper-silver project (mining licence JV and exploration licence)Xtract ResourcesProducingMumbwa District
Kabwe zinc-lead mine (Broken Hill); Speaks / Mine Club, No.2 ore bodyShuka MineralsExplorationKabwe
Mushima North (Target A1 silver-copper-zinc)Tertiary MineralsExplorationNorth-Western Province
Kalengwa copper processing project (tailings, plant, flooded pit)Xtract ResourcesClosedNorth-Western Province

Silver mines in Botswana

Botswana.

Listed companies' projects

ProjectCompanyStageRegion
Kalahari Copper Belt licences (Somelo/PL232, Sweet Thorn Pan/PL235, Ghanzi PL082 ...)Serval ResourcesExplorationGhanzi / Kgalagadi
Kalahari Copperbelt licences (Atlantis Metals, 11 prospecting licences)AterianExplorationKalahari Copperbelt
Ngamiland copper licences (8 PLs)Botswana MineralsExplorationNgamiland

Silver mines in Nicaragua

Nicaragua.

Listed companies' projects

ProjectCompanyStageRegion
La India gold project (Condor)Metals ExplorationDevelopmentLeon
Cacao prospect (La India district)Metals ExplorationExplorationLeon
La Grecia prospectMetals ExplorationExplorationLeon

Silver mines in Papua New Guinea

Papua New Guinea.

Mines

MineOperatorStatusLatest published output
Ok TediProducing99,000 t (2019)
LihirNewmontProducing29.7 t (2018)
Hidden Valley0.684 t (2017)

Silver mines in Portugal

Portugal.

Mines

MineOperatorStatusLatest published output
Neves CorvoProducing41,436 t (2019)

Listed companies' projects

ProjectCompanyStageRegion
Borralha Tungsten Project (Santa Helena Breccia, Venise Breccia)Allied Critical MetalsDevelopmentSalto parish
Vila Verde Tungsten Project (Vale das Gatas mine, pilot plant)Allied Critical MetalsDevelopmentSabrosa council

Silver mines in South Africa

South Africa.

Mines

MineOperatorStatusLatest published output
Black Mountain2,200 t (2009)

Listed companies' projects

ProjectCompanyStageRegion
Goldplat Recovery (GPL) - Benoni gold recovery plantGoldplatProducingGauteng
Goldplat Recovery TSF (tailings storage facility), BenoniGoldplatDevelopmentGauteng

Silver mines in the DR Congo

DR Congo.

Mines

MineOperatorStatusLatest published output
KibaliBarrick (Kibali Goldmines)Producing22.9 t (2018)

Listed companies' projects

ProjectCompanyStageRegion
Bisie North Project (Kalayi tin, Mont Agoma Cu-Zn-Sn)Rome ResourcesExplorationWalikale territory

Silver mines in Ghana

Ghana.

Mines

MineOperatorStatusLatest published output
ChiranoKinross GoldProducing7.05 t (2018)

Listed companies' projects

ProjectCompanyStageRegion
Gold Recovery Ghana (GRG) - Kpone/Tema Free Zone plantGoldplatProducingGreater Accra

Silver mines in Guatemala

Guatemala.

Mines

MineOperatorStatusLatest published output
EscobalClosed255 t (2017)
MarlinClosed3.58 t (2016)

Silver mines in Ireland

Ireland.

Mines

MineOperatorStatusLatest published output
TaraProducing132,000 t (2018)
GalmoyClosed64,142 t (2011)

Silver mines in Namibia

Namibia.

Listed companies' projects

ProjectCompanyStageRegion
Hope and Gorob copper-gold (Hope, Gorob, Vendome, Anomaly; Tsoaxaub plant ~190 km away)Bezant ResourcesProducingErongo
Kaoko Basin copper-silver (EPL 7081 Omatapati/Horseshoe/Otjozongombe/Okozonduno; EPL 7082; EPL 7079; EPL 6998)Serval ResourcesExplorationKunene

Silver mines in Norway

Norway.

Listed companies' projects

ProjectCompanyStageRegion
Nussir copper-silver-gold projectBlue Moon MetalsDevelopmentFinnmark
NSG (Sulitjelma) copper-zinc-gold-silver projectBlue Moon MetalsExplorationNordland

Silver mines in the Philippines

Philippines.

Mines

MineOperatorStatusLatest published output
DidipioProducing2.61 t (2019)
Siana1.29 t (2017)

Silver mines in Saudi Arabia

Saudi Arabia.

Listed companies' projects

ProjectCompanyStageRegion
Hawiah Copper-Gold-Zinc VMS ProjectKefi Gold and CopperDevelopmentWadi Bidah mineral district
Al Godeyer Copper-Gold DepositKefi Gold and CopperExplorationWadi Bidah mineral district

Silver mines in Turkey

Turkey.

Listed companies' projects

ProjectCompanyStageRegion
Tavsan Gold-Silver MineAriana ResourcesProducingKutahya Province
Salinbas Project (Salinbas, Ardala, Hizarliyayla)Ariana ResourcesExplorationArtvin Province

Silver mines in Cyprus

Cyprus.

Listed companies' projects

ProjectCompanyStageRegion
Kokkinoyia Sector (Magellan Project)Ariana ResourcesExplorationCyprus

Silver mines in Côte d'Ivoire

Côte d'Ivoire.

Mines

MineOperatorStatusLatest published output
BonikroProducing4.47 t (2018)

Silver mines in the Dominican Republic

Dominican Republic.

Mines

MineOperatorStatusLatest published output
Pueblo ViejoPueblo Viejo Dominicana (Barrick/Newmont)Producing30.1 t (2018)

Silver mines in Finland

Finland.

Mines

MineOperatorStatusLatest published output
KittilaProducing5.27 t (2019)

Silver mines in Germany

Germany.

Listed companies' projects

ProjectCompanyStageRegion
Tellerhauser Tin Project (Hammerlein and Dreiberg), SaxonyFirst TinDevelopmentRittersgruen / Breitenbrunn

Silver mines in Greece

Greece.

Listed companies' projects

ProjectCompanyStageRegion
Molaoi zinc-lead-silver-germanium depositRockfire ResourcesExplorationLaconia

Silver mines in Kosovo

Kosovo.

Listed companies' projects

ProjectCompanyStageRegion
Slivova Gold ProjectAriana ResourcesExplorationKosovo

Silver mines in Kyrgyzstan

Kyrgyzstan.

Mines

MineOperatorStatusLatest published output
BozymchakProducing7,580 t (2018)

Silver mines in Laos

Laos.

Mines

MineOperatorStatusLatest published output
SeponLane Xang Minerals Limited (LXML), subsidiary of MMG: MMG (90%), Laos Government (10%)62,941 t (2017)

Silver mines in Mongolia

Mongolia.

Mines

MineOperatorStatusLatest published output
Oyu TolgoiOyu Tolgoi LLCProducing

Silver mines in Mozambique

Mozambique.

Listed companies' projects

ProjectCompanyStageRegion
Ligonha Gold Project (Mozambique tenement)Premier African MineralsExplorationZambezia

Silver mines in New Zealand

New Zealand.

Mines

MineOperatorStatusLatest published output
MacraesProducing5.37 t (2019)

Silver mines in Nigeria

Nigeria.

Listed companies' projects

ProjectCompanyStageRegion
Segilola Gold MineThor ExplorationsProducingOsun State

Silver mines in North Macedonia

North Macedonia.

Listed companies' projects

ProjectCompanyStageRegion
Sasa zinc-lead-silver mine (Svinja Reka and Golema Reka)Central Asia MetalsProducingMakedonska Kamenica municipality

Silver mines in Panama

Panama.

Mines

MineOperatorStatusLatest published output
Cobre PanamaDevelopment

Mine output as each source states it (units and basis differ between mines, so they are not ranked against each other). Mines: Jasansky, Brauneis, Maus et al. (Vienna University of Economics and Business). Projects: listed companies' own announcements. World shares: USGS.