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“MineralSecurity”Policy
forElectricVehicleBatteryMinerals
SangitaGayatriKannanandMichaelToman
Report25-06March2025
AbouttheAuthors
SangitaGayatriKannanisaPhDstudentintheMineralandEnergyEconomics
programatColoradoSchoolofMines.ShealsoisaresearchassistantwiththeCriticalMaterialsInnovationHub,anEnergyInnovationHuboftheUSDepartmentofEnergy.
MichaelTomanisaseniorfellowwhoworkedatResourcesfortheFuturein1978–2003
andreturnedduring2021–2024;henowservesasaconsultant.Hiscurrentresearch
interestsincludecriticalmineralsfordecarbonization,carbondioxideremovals,
marketsforemissionreductioncredits,andclimatechangepoliciesindeveloping
countries
Acknowledgements
TheauthorsaregratefulforinformativeconversationswithAnupBandivadekar,DougBohi,EmilioCastillo,RoderickEggert,andseveralcritical-mineralindustryexpertswhoagreedtooff-the-recordinterviews;andforhelpfulcommentsonadraftofthepaperfromBeiaSpiller.TheauthorsalsoaregratefultotheHewlettFoundationforfinancially
supportingtheresearch.Responsibilityforthecontentofthepaperliesexclusively
withtheauthors.
ResourcesfortheFuturei
“MineralSecurity”PolicyforElectricVehicleBatteryMineralsii
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ResourcesfortheFutureiii
Abstract
Thispaperdiscussesthenatureofquantityandpricerisksfromtheexerciseofmarketpowerovercriticalminerals,withanemphasisonthemineralsusedforelectricvehicle(EV)batteries.ThefocusisespeciallyonrisksinvolvingChinasincethatcountryholdslargesharesintheprocessingandextractionofseveralbatteryminerals.Quantity
riskisthethreatofselectiveinterruptionsinthesupplyofcriticalmineralsavailabletotargetcountries.Priceriskisthethreatofhigherpricesbyrestrictingsuppliestothemarketasawhole,therebyextractingeconomicrentsfrombuyers.Keyfindingsincludethat(i)Chinaisunlikelytobeabletocontrolmarketallocationsofbattery
mineralstoimplementselectivesupplycuts,(ii)Chinatendstooverbuildmineral
processingcapacitytosafeguarddomesticsupplychains,andthat(iii)Chinahas
engagedinexportpricediscriminationforcertaincriticalminerals,butcareisneededincomparingthisrisktotheriskinvolvedwithmassiveinvestmentinnon-Chinese
mineralprocessingcapacity.
JELnumbers:Q37,Q34,F52
Keywords:criticalminerals.electricvehiclebatteries.marketpower.industrialpolicy.
“MineralSecurity”PolicyforElectricVehicleBatteryMineralsiv
Contents
1.Introduction1
2.OverviewofCriticalMineralAvailabilityRisks2
3.CriticalMineralQuantity-AvailabilityRisksforBatteryMinerals2
4.EvidenceRelevanttoUnderstandChina’sInvestmentandPricingDecisionsin
LithiumandCobaltMarkets3
4.1.Lithium:DataonCapacity,CapacityUtilization,andPrices3
4.2.Cobalt:DataonCapacity,CapacityUtilization,andPrices7
5.WhatDotheLithiumandCobaltDataSuggest?10
6.WhatElseMightBeGoingOn?12
7.China’sLeadinBatteryMineralsProcessing13
8.PolicyImplications14
9.ConcludingRemarks16
References17
“MineralSecurity”PolicyforElectricVehicleBatteryMinerals1
1.Introduction
Whiletheconceptof“mineralsecurity”forUScriticalmineralsisinterpretedin
differentways,concernsabouttheiravailabilityarisefrequently.Thisfollowsfromthedefinitionof“criticalminerals”:non-fuelmineralsthatplayanimportantroleinthe
economyornationalsecurity,arechallengingtoreplaceatleastinthenearerterm,andaresubjecttosomenotablepossibilityofdecreasedavailability(NationalResearch
Council2008).
Twotypesofconcernaboutcriticalmineralsecurityarefoundinpolicydebates.Bothinvolveactorswithlargemarketsharesintheextractionand/orprocessingofsome
criticalminerals.Oneisthethreatofselectiveinterruptionsinthequantityofcriticalmineralsavailabletoparticulartargetcountriesduetogeopoliticalconflict.Theotheristhethreatofhigherpricesfromtheexerciseofmarketpoweroversuppliesby
restrictingoutputs,therebyextractingeconomicrentsfrombuyers1Thisexerciseof
marketpoweralsocaninvolve“predatorypricing”—floodingthemarkettodrivepricesdownwhenthereisathreatofcompetitiveentry.2RapidgrowthinChineseprocessingcapacitytoahugescale,eventothepointofapparentglobalover-capacity,has
becomeasubjectofconcern(DOT2024;EuropeanCommission2023).
Thispaperdiscussesthenatureofquantityandpricerisksfromtheexerciseofmarketpowerwithafocusoncriticalmineralsusedforelectricvehicle(EV)batteries.These
includecobalt,graphite,lithium,manganese,andnickel.Thefocusisespeciallyon
risksinvolvingChinasincethatcountryholdslargesharesintheprocessingand/or
extractionofseveralbatterymineralscomparedtotherestoftheworld(ROW)(see
Spiller,Kannan,andToman2023).Theargumentsinthepaperarebasedonamixtureoflogicalreasoning,informationaboutmineralsuppliesandmarkets,informationaboutChineseindustrialpolicy,andoff-the-recordconsultationwithseveralindustryexpertsinvolvedindifferentpartsofcriticalmineralsupplychains.
1“Economicrents”isatermusedbyeconomiststodescribeprofitsgainedbytheexerciseofmarketpower,beyondthenormalreturnsoncapitalandpaymentsforotherinputs.
2Someobserverswouldaddconcernsoverpricevolatility,thecommonplaceupwardanddownwardmovementsofpricesthataredifferentthanpredatorypricedrops.Critical
mineralpricevolatilityisseenasamplifyingfinancial/investmentrisksfornewinvest-
mentsincriticalmineralsextractionorprocessing.However,pricevolatilityisubiquitousincommoditymarkets—especiallymarketsforcriticalminerals,whichtendtobethinandopaqueandhaveinelasticnearer-termsuppliesanddemands.
ResourcesfortheFuture2
2.OverviewofCriticalMineralAvailabilityRisks
Thegeopoliticalconcerninvolvesthethreatofsupplyreductionsorinterruptionstargetedatspecificcountries.Suchrestrictionscertainlywouldhaveeconomicconsequences.Theseriousnessofthisthreatdependscriticallyonthedegreeoftargetingthatispossible,whichdependsinturnontheabilitytolimitresaleandtransshipment.
Theeconomicconcernisthatacountrywithalargeshareofmineralproductionand/orprocessingcoulduseitsmarketpowertoraiseprices,alongwithpricecutswhenneededtodetercompetingsuppliersfromexpanding.Onewaytoexercisemarket
poweristorestrictoutputsofprocessedminerals,raisingpricesforallpurchasers—domesticandforeign.Inthiscase,theeconomicrentsgainedfromraisingprices
toforeignpurchasersneedtobebalancedagainstadverseeffectsondomestic
purchasers.Theotherwaytoexercisemarketpoweristhroughpricediscrimination,restrictingexportssothatpricestoforeignpurchasersexceedpricestodomesticpurchasers.Wediscussbothtypesofmarketpowerbelow.
Competitionfromothersdependsonhowquicklycompetitorscanexpandtheir
outputifpricesareabovecosts.Althoughsupplyelasticities(thepercentageresponseofsupplytoaparticularpercentageincreaseinprice)tendtobelowintheshort
term,marketscanadjustoverlongerperiods.Inthemedium-to-longterm,anupperboundonthepricethatcanbechargedtoextracteconomicrentisasustainedpricesufficienttodrawcompetitorsintotheindustry.
3.CriticalMineralQuantity-AvailabilityRisksforBatteryMinerals
Scanthistoricalevidenceexistsforsuccessfulimpositionoftargetedsupply
restrictions.Observershavepointedtothefallof2010,whenChinastateditwas
reducingexportsofsomerareearthelements(REEs)overanunrelateddisputewith
Japan.Pricesforthoseelementsincreasedtenfoldanddidnotdeclineuntilpartway
through2011.However,dataonJapaneseimportsduringtheperiodindicatenosuddenanddramaticshortfallindeliveriestothatcountry(Johnston2013,24–26;EvenettandFritz2023,32–33).EvenettandFritz(2023)furthershowthatthereisnosolidevidenceofselectivesupplycutstoanybuyerofREEsfromChinaovertheperiod2010–2019.Inpractice,anyrestrictionsinChineseexportsaffectedtheglobalmarketasawhole,notindividualcountries.
“MineralSecurity”PolicyforElectricVehicleBatteryMinerals3
Forbatteryminerals,thestructureofthemarketsmakesitunlikelythatatargeted
restrictiononsuppliescouldbesustained.Thesemineralslargelyaretradedthroughasignificantnumberofbilateraltradeagreementsbetweenindividualsuppliers
andpurchasers.ItwouldbeverydifficultforChinatopreventresaleofmaterialstocountriesaffectedbytargetedrestrictions,whichwouldineffectbecomerestrictionsonavailabilitytothemarketasawhole.3
4.EvidenceRelevanttoUnderstandChina’sInvestmentandPricing
DecisionsinLithiumandCobaltMarkets
4.1.Lithium:DataonCapacity,CapacityUtilization,andPrices4
China’sdomesticproductionoflithiumattheextractionstagehasbeenintherangeof15–24percentoftheglobaltotalduringtheperiod2011–2023(RoskillInformationServices2020a,2020b;USGS2012–2024).Extractionoflithiumoccurslargelyfrom
twotypesofdeposits—so-calledsurfacebrineandhardrock.Extractionfrombrine
depositsinvolvesconcentrationofthebrineinsolarevaporationpondsandthen
furtherchemicalprocessingtoproducerefinedlithium.Hardrock–basedoperationsprimarilyinvolvelithium-bearingores,themostvaluableofwhichisspodumene.
Processingoflithiumfromhardrockbasedmineralsinvolvesvariousprocessesto
obtainlithiumconcentrate,whichisfurtherrefinedtolithiumchemicals(Warren2021).Chinadoesnothavesignificantcomparativeadvantages(technologicalorgeological)forextractedlithium.Nonetheless,Chinahascontinuedtobuilddomesticcapacityforbothbrineandhardrocklithiumextraction.
3TheDecember3,2024,editionoftheNewYorkTimesreportedthatChinawasstoppingsalestotheUnitedStatesofseveralnon-batterycriticalmineralsincludinggallium,ger-manium,andantimony.Exportsofgraphite(abatterymineral)wouldcontinuebutwithin-creasedscrutiny(DavidPierson,KeithBradsher,andAnaSwanson,“ChinaBansRareMin-eralExportstotheU.S.,”theNewYorkTimes,December3,2024,
https://www.nytimes.
com/2024/12/03/world/asia/china-minerals-semiconductors.html
).Subsequently,
ChinaorderedcustomersfromothercountriesnottoallowtransshipmentstotheUnitedStates(KeithBradsher,“China’sCriticalMineralsEmbargoIsEvenTougherThanExpect-ed,”theNewYorkTimes,December9,2024,
/2024/12/09/
business/china-critical-minerals.html
).TimewilltellhowmuchChinacaninpracticeeffectivelyembargocriticalmineralsuppliestoselectedcountries,giventheworkingsofthemarketsfortheaffectedminerals.
4ThedatainthissubsectionandthenextcomefromRoskillInformationServices(2019,
2020a,2020b),andfromvariousyearsofannuallithiumandcobaltstatisticsfromthe
USGSNationalMineralInformationCenter.BecausetheRoskilldataareproprietary,abso-lutequantitiesfromthissourcecannotberevealed.
ResourcesfortheFuture4
China’sshareoflithiumrefiningcapacityhasgrownfrom44percentin2013toalmost76percentin2020(Figure1).Chinesecapacityhasgrownatanaverageannualgrowthrate(AAGR)of33percentfrom2013to2020(Figure2).Duringthissameperiod,
thecapacityforrefininglithiuminROWhasgrownatanAAGRofapproximately10
percent,consistentwiththedeclineofitssharefrom56percentto24percent(Figure1).Thus,whileROWroughlydoubledcapacityforrefininglithium,China’scapacity
increased7.5times.Similartrendsholdforquantitiesofrefinedlithiumproductionaswell,withChina’sshareinglobalrefinedproductionatapproximately65percentin2020.
Figure1.RefinedLithiumCapacityShare
100
Total%CapacityShare
90
80
70
60
50
40
30
20
10
20132014201520162017201820192020
RestofWorldChina
Sources:RoskillInformationServices2020a,2020b;USGeologicalSurvey(USGS)—variousyears.
Figure2.RefinedLithiumCapacity
LithiumCarbonateEquivalent
8
IndexedMetricTonne
7
6
5
4
3
2
1
20132014201520162017201820192020
Chinacapacity
RestofWorld
capacity
Note:Figure2showsrelativegrowthincapacities,withChineseandRestofWorld(ROW)capacitiesnormalizedto1.0in2013.
Sources:RoskillInformationServices2020a,2020b;USGeologicalSurvey(USGS)—variousyears.
“MineralSecurity”PolicyforElectricVehicleBatteryMinerals5
Figures1and2donotseparatebrineandhardrockrefiningcapacities.ROWhas
higherbrinecapacitythanChina,althoughChina’shascontinuedtobuild.However,Chinaoverwhelminglydominatesglobalrefiningcapacityforhardrock–basedlithium.
Figure3comparescapacityutilizationforlithiumrefiningbetweenChinaandROW
over2013–2020.ItshowsthatChina’scapacityutilizationhaslargelyrangedbetween40and60percent,withadownwardtrendfromaround60percentin2013toaround
40percentin2020.ThecapacityutilizationfortheROWhasbeenhigher,hoveringaround80percentformostofthatperiod.
Figure3.CapacityUtilizationforRefinedLithium
100
%CapacityUtilization
90
80
70
60
50
40
30
20
10
ChinaRestofWorld
20132014201520162017201820192020
Sources:RoskillInformationServices2020a,2020b;USGeologicalSurvey(USGS)—variousyears.
Figure4comparesgloballithiumuse,Chineseuse,andChina’sandROW’srefined
lithiumcapacityover2013–2019.Thefiguresuggeststhatfrom2013to2015,total
(ChineseandROW)refiningcapacitygrewinlinewithgloballithiumuse.In2015,
however,thepaceofgrowthinChineserefiningcapacityincreased,leadingtoexcessglobalcapacity.After2017,China’srefiningcapacitysignificantlyexceededglobal
useofrefinedlithium(bygreaterthan150,000tonneslithiumcarbonateequivalent).Thisimpliesaggressivegrowthofprocessingcapacity,fasterthangrowthindemandforrefinedlithium.OnepuzzleiswhyChineserefiningcapacitygrewsomuchwhilecapacityutilizationratesdeclined(Figure3).Figure4alsoshowsapickupinthe
growthofdemandforrefinedlithiumafter2017.
ResourcesfortheFuture6
Figure4.NormalizedGlobalandChineseUseofRefinedLithium
IndexedMetricTonneLithium
CarbonateEquivalentTotal
7
6
5
4
3
2
1
2013201420152016201720182019
ChinacapacityChineseconsumption
RestofWorldcapacityGlobalconsumption
Note:Allfourdatalinesareshowninindexedform.Theindexingwascarriedoutasfollows:
(a)in2013,Chinesecapacitywasindexedto1.0andtheotherthreefigureswerenormalized
relativetothat;and(b)for2014–2020,eachofthefourdatalineswasconstructedbyusingtheratioofcurrenttoprevious-yearvalues.
Sources:RoskillInformationServices2020a,2020b;USGeologicalSurvey(USGS)—variousyears.
Figure5graphsglobalrefinedlithiumproduction(ChineseandROW)andthepriceoflithiumover2013–2020.Thelithiumpricewasstablefrom2013to2015butincreasedsubstantiallybetween2015and2018.Chineseprocessingcapacityandoutputbegantogrowmorerapidlyfrom2015to2017,whichpresumablymoderatedthesubsequentpriceincrease(Figures4–5).However,Chineseprocessingcapacitycontinuedtogrowfrom2017to2020,andactualoutputgrewoverthesameperiodeventhoughtherateofcapacityutilizationwasdeclining(Figure3).Theinevitableresultwasasignificantdeclineinthepriceofrefinedlithiumover2018–2020.5
5Lithiumpricesalsoshotupfrom2021to2022beforefallingbacksomewhatin2023.
SimilartothepatternshowninFigure5,Chineselithiumprocessingcapacitysteadilygrewoverthisentiretime.
“MineralSecurity”PolicyforElectricVehicleBatteryMinerals7
Figure5.RefinedLithiumProductionandPriceofLithium
9
8
Indexedproduction
7
6
5
4
3
2
1
20132014201520162017201820192020RestofWorldproduction
Chineseproduction
25,000
Annualaverageprice
(US$perMetricTonne)
20,000
15,000
10,000
5,000
Priceofbattery-gradelithiumcarbonate
Note:Metrictonnesoflithiumcarbonateequivalentproductionnumbersareindexed,usingthesameapproachoutlinedinFigure4.
Sources:RoskillInformationServices2020a,2020b;USGeologicalSurvey(USGS)—variousyears.
4.2.Cobalt:DataonCapacity,CapacityUtilization,andPrices
Chinaisaninsignificantproducerofcobaltattheminingstage,withanoutputshareofabout1–2percentthroughouttheperiod1999–2022(USGS2000–2023).Incontrast,Figures6and7showthatChina’scapacityforrefiningcobalthasgrownfromamere2.6percentsharein1999toalmost67percentin2021.TheAAGRforcobaltrefining
capacityinChinaforthisperiodhasbeenapproximately24percent,whereasthe
ROW’sAAGRforthesameperiodhasbeenamere1.8percent.ROW’scobaltrefiningcapacityshareintheworldfellfrom97percentto33percent.Similartrendsholdgoodforrefinedcobaltoutputaswell,withChina’sshareinglobalrefinedproductionat
around74percentin2021.
ResourcesfortheFuture8
Figure6.RefinedCobaltCapacityShare
100
90
80
%CapacityShare
70
60
50
40
30
20
10
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
Year
ChinaRestofWorld
Sources:RoskillInformationServices2019;USGeologicalSurvey(USGS)—variousyears.
Figure7.RefinedCobaltCapacity
IndexedMetricTonneCobaltContent
12
10
8
6
4
2
2000
2002
2003
2004
2005
2009
2020
1999
2001
2006
2007
2008
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2021
Year
ChinaRestofWorld
Note:Figure7showsrelativegrowthincapacities,withChineseandRestofWorld(ROW)capacitiesnormalizedto1.0in2004.
Sources:RoskillInformationServices2019;USGeologicalSurvey(USGS)—variousyears.
“MineralSecurity”PolicyforElectricVehicleBatteryMinerals9
Figure8comparescobaltrefiningcapacityutilizationbetweenChinaandROWover1999–2021.Itshowsthatunlikethecaseforlithium,China’scobaltrefiningcapacityutilizationhaslargelyshownanupwardtrend,risingfrom20percentin1999tomeetROWat60percentin2012,andthenconsistentlysurpassingROWinthefollowingyears.Itgrewto100percentin2015beforefallingtoaround60percentin2019.
CapacityutilizationfortheROWhasbeenlargelyflat,intherangeof60percent.
Figure9showsthatChina’scobaltrefiningcapacityhasrisenatanincreasedratesince
2015andslightlysurpassedglobalcobaltusein2019.
Figure8.CapacityUtilizationforCobalt
120
%CapacityShare
100
80
60
40
20
ChinaRestofWorld
199920012003200520072009201120132015201720192021
Sources:RoskillInformationServices2019;USGeologicalSurvey(USGS)—variousyears.
Figure9.NormalizedChineseandGlobalUseofRefinedCobalt
IndexedMetricTonne
4
CobaltContent
3
2
1
2013201420152016201720182019
GlobalConsumptionChinesecapacityRestofWorldCapacity
Note:DataareindexedusingthesameapproachoutlinedinFigure4.
Sources:RoskillInformationServices2019;USGeologicalSurvey(USGS)—variousyears.
ResourcesfortheFuture10
InFigure10,thelineforthepriceofrefinedcobaltshowstwosignificantrunups,from
2002to2008(withsomeretrenchmentin2004–2005)andagainfrom2016to2018.
China’sproductionduringthefirstperiodstartedsmallbutgrewsubstantiallyuntil
2010,eventhoughthepricedroppedsignificantlyin2009.WecannotsaythatChina’scontinuedgrowthinoutputcausedthepricedropgivenotherfactors,suchasthe
globalfinancialcrisisandrecessionatthattime,butitpresumablycontributedtosomeextent.
Figure10.RefinedCobaltProductionandPrice
IndexedMetricTonneCobaltContent
20
18
16
14
12
10
8
6
4
2
100,000
90,000
US$perMetricTonne
80,000
70,000
60,000
50,000
40,000
30,000
20,000
10,000
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2011
Year
ChineseProductionRestofWorldProductionPriceofcobaltmetal(USspot)
Note:ProductionnumbersareindexedusingthesameapproachoutlinedinFigure4,exceptthenormalizationsarecenteredon2004ratherthan2013.
Sources:RoskillInformationServices2019;USGeologicalSurvey(USGS)—variousyears.
Chineseproductionresumeditsincreasein2012andsurpassedROWproduction,even
thoughthepriceofrefinedcobaltwasstagnantuntil2016.Subsequently,Chinese
outputgrewdramatically,evenafterthepricepeakin2018.Thecontinuedrisein
Chineseoutputpresumablycontributedtothepricedecline.Therateofcapacity
utilizationdeclinedafter2016(Figure8),meaningthattheverylargeoutputincreases
thereaftercanbeattributedtonewcapacitybeingbuilt(Figures6–7).
“MineralSecurity”PolicyforElectricVehicleBatteryMinerals11
Figure11.ChineseSteelProductionandIronOreImports
Note:ImpliedDomesticIronOreProduction(importequivalent):pigironconsumptionimpliedironunitdemandlessimports,plusstockchangesandtransformedtobeequivalentto
importedorecharacteristics(moistureandironcontent)
Source:RioTinto2016.
Figure12.ChineseAluminumProductionandBauxiteand
AluminaImports
Source:RioTinto2014.
ResourcesfortheFuture12
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