Copper — Events & Drivers

Analysis date: 2026-03-13

Unified Events

idnameparentcategorytemporalStaterealizationStatusvaluetrendsignificancedirectionmagnitudedurationprobabilityconfidencedatestartDateprojectedEndleadTimeleadTimeBasissourceTypelastUpdatedtopicssourcesevidenceForevidenceAgainstleadTimeEvidencereferences
EV001Grasberg force majeure-supplypresentconfirmed~400ktpa offlinestablehighbullishmajorsustained-high2026-03-132026-01-152026-06-30--llm-search2026-03-13supply,disruption,indonesia,grasbergS001SF001,SF002,SF003---
EV002Peru Las Bambas protests-supplypresentconfirmedintermittent blockadesstablemediumbullishmoderatesustained-medium2026-03-132025-11-01---llm-search2026-03-13supply,disruption,peru,las-bambasS002----
EV003Chile Capstone Mantoverde strike-supplypresentconfirmedongoing strikestablemediumbullishmoderateshort-medium2026-03-132026-01-01---llm-search2026-03-13supply,disruption,chile,strikeS003----
EV004Chile El Teniente rockburst-supplypresentconfirmed~25kt loss 2026stablelowbullishminorsustained-high2026-03-132025-07-012026-12-31--llm-search2026-03-13supply,disruption,chile,codelcoS003----
EV005China smelter output cuts ~10%-supplypresentconfirmed~10% capacity cuts announcedacceleratinghighbullishmajorsustained-high2026-03-132026-02-012026-12-31--llm-search2026-03-13supply,constraint,china,smelterS004SF004,SF005,SF006---
EV006Chile 13 copper projects advancing-supplyfutureregistered~500ktpa new capacitystablemediumbearishminorstructural70%medium2026-03-132026-06-012027-12-3112-18 monthsproject timelinesllm-search2026-03-13supply,expansion,chile,projectsS005----
EV007US Section 232 tariff distortions-supplypresentconfirmed50% tariff in effectstablehighbullishmajorsustained-high2026-03-132025-08-01---llm-search2026-03-13policy,tariff,us,section232S006SF007,SF008,SF009--EV017
EV008Global inventory at 23-year high-supplypresentconfirmed1.39M tonnesstablehighbearishmajortransient-high2026-03-132026-01-01---llm-search2026-03-13inventory,bearish,global,stocksS007SF010,SF011---
EV009China manufacturing PMI contraction-demandpastconfirmed49.0deceleratinghighbearishmoderateshort-high2026-03-04----llm-search2026-03-13demand,china,pmi,manufacturingS008SF015,SF016EV013--
EV010China copper imports -16.1% YoY-demandpastconfirmed-16.1% YoYdeceleratinghighbearishmajorsustained-high2026-03-10----llm-search2026-03-13demand,china,imports,weakS009SF012,SF013,SF014---
EV011China refined output slowing to +5%-demandpresentconfirmed+5% YoY growth forecastdeceleratingmediumbearishmoderatesustained-medium2026-03-13----llm-search2026-03-13demand,china,output,slowingS010----
EV012Chinese traders net short copper-demandpresentconfirmednet shortstablemediumbearishmoderateshort-medium2026-03-13----llm-search2026-03-13positioning,china,shfe,bearishS011----
EV013Private Caixin PMI divergence positive-demandpastconfirmed52.1acceleratingmediumbullishmoderateshort-medium2026-03-04----llm-search2026-03-13demand,china,pmi,privateS012-EV009--
EV014China copper ore imports +4.9% YoY-demandpastconfirmed+4.9% YoYstablemediumbullishminorsustained-high2026-03-10----llm-search2026-03-13demand,china,ore,smelterS009----
EV015US stagflation risk-demandpresentconfirmed-92K jobs, 4.4% unemploymentacceleratinghighbearishmoderateshort-high2026-03-06----llm-search2026-03-13demand,us,stagflation,macroS013----
EV016Iran war economic uncertainty-demandpresentconfirmedVIX ~30+deceleratingmediumbearishmoderatetransient-medium2026-03-132026-03-06---llm-search2026-03-13demand,macro,uncertainty,warS014----
EV017US tariff arbitrage demand-demandpresentconfirmed590k short tons COMEX recordstablehighbullishmajorsustained-high2026-03-132025-08-01---llm-search2026-03-13demand,tariff,arbitrage,comexS007SF017,SF018--EV007

Sources

idsourceauthortypedatequoteaudiencecredibilityimpactreferences
S001J.P. Morgan/Mining.com-analyst-report2026-03-10Block Cave production halted following fatal mudslide; force majeure declaredprofessionalhighGrasberg ~400ktpa offline until Q2 2026EV001
S002Mining.com-news-report2026-03-08Informal miners staged protests over stricter permit rules, blocking key transport routespublichighLas Bambas intermittent disruptions ongoingEV002
S003Invezz/DiscoveryAlert-news-report2026-01-05Chilean strike and vanishing LME stocks propel copper prices to recordpublicmediumChile supply disruptions contributing to tightnessEV003,EV004
S004GF Futures/Citic Securities-analyst-report2026-03-10Chinese smelters announcing ~10% capacity cuts due to low TC/RCprofessionalhighMay create ~450kt refined deficitEV005
S005Mining.com-news-report2026-02-15Chile loads its copper cannon with 13 projects for a bullish 2026publichigh~500ktpa new capacity 2026-2027EV006
S006Federal Register/White House-government-official2025-07-3050% tariff on semi-finished copper products effective August 1, 2025publichighTariff driving COMEX stockpiling and arbitrageEV007
S007LME/SHFE/COMEX-market-data2026-03-13Combined global copper stocks at 1.39M tonnes, 23-year highpublichighInventory overhang creates price resistanceEV008,EV017
S008NBS China-government-official2026-03-04Official Manufacturing PMI at 49.0 in FebruarypublichighSecond consecutive month of contractionEV009
S009China Customs-government-official2026-03-10Copper imports -16.1% YoY in Jan-FebpublichighWeak fabricator demand confirmedEV010,EV014
S010China Nonferrous Metals Association-industry-report2026-03-08Refined copper output growth forecast +5% YoY for 2026, down from ~10% in 2025professionalhighGrowth slowingEV011
S011S&P Global-analyst-report2026-01-15Chinese traders net short copper; divergence from LMEprofessionalhighLocal demand softEV012
S012RatingDog/Caixin-news-report2026-03-04Caixin PMI at 52.1, highest since Dec 2020publicmediumPrivate sector diverges from official dataEV013
S013BLS-government-official2026-03-06Non-Farm Payrolls -92,000; unemployment 4.4%publichighUS stagflation risk risingEV015
S014CBOE-market-data2026-03-13VIX elevated ~30+publichighWar uncertainty, economic concernsEV016

Sub-Factors

idsubFactorparenttypevalueEvidencestatusleadTimestartDateprojectedEndlastUpdatedsourcesreferences
SF001Block Cave production haltedEV001actionFatal mudslide triggered closure; Freeport-McMoRan confirmed force majeureconfirmed-2026-01-152026-06-302026-03-13S001EV001
SF002Block Cave represents 70% of Grasberg outputEV001capabilityJ.P. Morgan/Mining.com analysis confirms production splitconfirmed---2026-03-13S001EV001
SF003~400ktpa offline until Q2 2026EV001deploymentTimeline is estimate; Q2 restart not yet confirmed by operatorpartialQ2 2026-2026-06-302026-03-13S001EV001
SF004Low TC/RC squeezing smelter marginsEV005constraintTreatment/refining charges at multi-year lows confirmed by industry benchmarksconfirmed-2025-06-01-2026-03-13S004EV005
SF005Chinese smelters announcing capacity cutsEV005actionGF Futures/Citic Securities report smelter announcementsconfirmed-2026-02-01-2026-03-13S004EV005
SF006May create ~450kt refined deficitEV005capabilityIndustry estimate; actual deficit depends on cut implementation and demandpartial--2026-12-312026-03-13S004EV005
SF00750% tariff on semi-finished copper in effect since Aug 2025EV007actionFederal Register/White House Jul 2025; tariff operationalconfirmed-2025-08-01-2026-03-13S006EV007
SF008COMEX stocks at record high due to tariff front-loadingEV007actionCOMEX 590k short tons, highest since 2003; tariff-drivenconfirmed-2025-08-01-2026-03-13S007EV007
SF009Potential 15% refined tariff Jan 2027EV007intentionCommerce Dept review; Jun 30 2026 report deadline; not yet decidedpartialJun 2026 review-2027-01-012026-03-13S006EV007
SF010Combined exchange stocks at 1.39M tonnesEV008actionLME + SHFE + COMEX totals confirmedconfirmed-2026-01-01-2026-03-13S007EV008
SF011Citi: inventory buildup is "illusory" strategic stockpilingEV008precedentAnalyst interpretation; "just-in-case" vs demand weakness argumentpartial---2026-03-13S007EV008
SF012Jan-Feb customs data shows ~700ktEV010actionChina Customs March 2026 releaseconfirmed---2026-03-13S009EV010
SF013Yangshan premium fell to $34/tEV010actionMarket data confirms weak import appetiteconfirmed---2026-03-13S009EV010
SF014Fabricator demand softEV010constraintIndustry reports confirm downstream weaknessconfirmed---2026-03-13S009EV010
SF015Official NBS PMI at 49.0EV009actionNBS released Mar 4confirmed---2026-03-13S008EV009
SF016Second consecutive month below 50EV009precedentPrior month 49.3; trend confirmedconfirmed---2026-03-13S008EV009
SF017COMEX registered at 590k short tons (~534kt)EV017actionCME data; record since 2003confirmed-2025-08-01-2026-03-13S007EV017
SF018LME-COMEX arbitrage driving physical metal flowsEV017deploymentPremium differentials driving warehouse transfersconfirmed---2026-03-13S007EV017