〔Day Digest〕Tariff-Led Stockpiles Split Copper: LME Inventory Adds 3,050 Tons, COMEX Builds 61.9%, and Aluminum Hits a Record LME Low

0. Daily Arc

• **[NEW] Two-way metals tape:** An overnight U.S. CPI upside surprise drove broad early weakness, with Shanghai copper down 1.29%, Shanghai aluminum down 2.74%, LME copper down 1.33% and LME aluminum down 1.60%.^[1] By the daytime close, Shanghai aluminum led core base-metal declines at -1.38%, while Shanghai zinc gained 1.05% and Shanghai tin gained 1.86%; at 15:05, LME copper, zinc and tin stood at +1.40%, +1.70% and +1.19%.^[2]
• **[NEW] Inventory split:** LME copper inventory rose 3,050 tons, while aluminum fell 125 tons, zinc fell 1,400 tons, tin fell 50 tons, lead fell 8,175 tons and nickel fell 30 tons.^[3]
• **[NEW] Counterweights:** GFEX issued an announcement concerning polysilicon futures contract PS2711 and lithium carbonate futures contract LC2711; SHFE adjusted automatic conversion standards for hedging-position quotas in aluminum, cast aluminum alloy and lead; and Mitsui Metal announced a 190 billion yen Malaysian copper-foil factory.^[4][5][6]
• **[NEW] Source limitation:** The GFEX notice was truncated after the headline, so the packet does not establish the specific adjustment or its market impact.^[4]

1. Copper Inventory Bifurcation

• **[NEW] COMEX flow:** COMEX copper inventory rose 119 short tons, while Mobile moved 1,450 short tons into Registered status.^[7]
• **[ESCALATED] U.S. accumulation:** BMI said COMEX inventory had risen 61.9% from the beginning of the year through Nov. 4 to a record, as tariff expectations widened the COMEX-LME spread and redirected metal toward the United States during 2026.^[8]
• **[ESCALATED] Outside-U.S. squeeze:** BMI argued that the U.S. inventory build had restricted supply elsewhere and created an artificial shortage, even as it judged the short-term copper market vulnerable to downside.^[8]
• **[NEW] Import pull:** U.S. September imports of refined copper and copper alloys were 194,284 tons, down 3.1% month on month from 200,519 tons in August and 225,094 tons in July, but roughly double September 2025's 102,279 tons.^[9] Imports in the first nine months reached 1.52 million tons, up 17% year on year, and COMEX inventory stood at a record 731,428 tons while LME stocks in the United States hit a more-than-decade high.^[9]
• **[ONGOING] Price tension:** BMI recorded a copper peak of $14,875/t on Sept. 10 and a price still above $14,000/t on Nov. 5, yet still assigned near-term downside risk.^[8] Bloomberg separately reported that the copper crunch was squeezing activity and margins at firms producing wire, rod and tube for cables, electronics and consumer goods.^[10]

2. Aluminum Draw, Lead Supply and Industrial Stress

• **[NEW] SHFE de-stocking:** SHFE data for the week of Nov. 6 showed aluminum inventory falling for a 21st consecutive week, down 30.58% to 132,605 tons and at a new year low.^[11]
• **[NEW] LME squeeze:** LME aluminum inventory reached a new low of 226,850 tons, more than 50% below the start of the year, while New York aluminum inventory edged up to 927 tons, still historically low.^[11]
• **[ONGOING] Concentrated float:** Indian aluminum stocks continued to fall and Russian aluminum's share of deliverable LME stocks increased; pre-April 2024 Russian aluminum remained tradable despite sanctions, but many traders avoided it, leaving little primary aluminum in circulation.^[11]
• **[ESCALATED] Forward supply relief:** SMM said low stocks support aluminum now but mainly signal present tightness rather than future direction; Middle East de-escalation expectations, faster-than-expected overseas supply restoration and expected new Indonesian capacity strengthened the case for faster aluminum supply growth next year.^[11]
• **[NEW] Lead and coke:** A recycled-lead producer in Baoding cut output 50% for an expected one week under a Level I emergency response, while some steel mills planned a third coke-price reduction of CNY50-55/t on Nov. 11.^[12]
• **[NEW] European steel pressure:** Major Italian steelmakers have halted or were progressively shutting production as electricity and gas costs made operations unsustainable, according to industry lobby Federacciai, which said the repercussions could affect the entire industry.^[13]

3. Lithium and Silicon Microstructure

• **[NEW] Lithium rebound:** The main lithium carbonate contract rose more than 2.00% to CNY89,860/t; in SMM's earlier daytime close it was up 0.93%, polysilicon was down 0.23%, and industrial silicon was up 1.18%.^[2][14]
• **[NEW] Warehouse draw:** GFEX lithium carbonate warehouse receipts fell 514 contracts to 23,296; polysilicon receipts fell 780 to 18,140; industrial silicon receipts fell 501 to 26,759.^[15]
• **[ESCALATED] Volatility warning:** Ganfeng Lithium Group Co. said lithium price swings had become more extreme and harder to predict after a roller-coaster year.^[16]
• **[NEW] Export restriction:** Zimbabwe maintained its lithium-concentrate export ban from Jan. 2027.^[12]
• **[NEW] Contract rules:** SHFE changed automatic conversion standards for hedging-position quotas covering aluminum, cast aluminum alloy and lead, while GFEX's notice covered PS2711 and LC2711 without further details in the packet.^[4][5]

4. Capacity, Exploration and Strategic Policy

• **[NEW] Copper-foil expansion:** Mitsui Metal will build a new copper-foil plant in Malaysia with total investment of 190 billion yen, or approximately CNY8 billion, targeting AI data-center optical-communications components and advanced semiconductor materials.^[6]
• **[NEW] Ramped capacity:** The plant is expected to begin phased production in April 2031; by fiscal 2033, MicroThin capacity is planned at 2.4 times the fiscal 2025 level and VSP capacity at 3.6 times, with VSP expandable to 5,000 tons per month.^[6]
• **[NEW] Copper exploration:** Two copper exploration rights in Liangshan, Sichuan, were listed at the prefecture's highest premium rate in recent years.^[17]
• **[NEW] Brazil's minerals list:** Brazil published a 27-mineral critical and strategic minerals catalog with high, medium and low investment and regulatory priorities.^[18] The high tier covers rare earths, graphite, lithium, nickel, cobalt, copper, manganese, silicon and uranium; the medium tier covers tungsten, chromium, vanadium, tantalum, titanium, phosphate, potash and sulfur; the low tier covers niobium, tin, iron, zinc, gold, magnesium, molybdenum, thorium, aluminum and platinum-group metals.^[18]

5. Falsifiers and Source Control

• **[NEW] Copper test:** The bearish inventory thesis strengthens if COMEX's daily additions persist and LME copper stocks keep rising, but it weakens if the U.S. build reverses while physical-user margins remain compressed.^{[8][7][10][9]}
• **[NEW] Aluminum test:** Current support from 132,605-ton SHFE and 226,850-ton LME inventories would weaken as Middle East de-escalation, faster overseas supply restoration and Indonesian capacity lift next year's supply growth.^[11]
• **[NEW] Lithium test:** The rebound needs confirmation beyond the 2.00% move to CNY89,860/t because Ganfeng describes lithium pricing as less predictable, while the 514-contract decline in GFEX receipts points to a tighter warrant pool rather than a settled price trend.^[15][16][14]
• **[ONGOING] Source quality:** Exchange inventory and warrant figures are relayed by Cailian Press and SMM; BMI's downside view comes through Miningweekly, the U.S. import figures come through a Reuters report relayed by SMM and Miningweekly, and the Bloomberg copper and lithium items provide only headline-level summaries.^{[3][15][8][10][16][11][9]}
• **[ONGOING] Thin detail:** The GFEX announcement is truncated and BMI's report is summarized rather than reproduced, so precise contract changes and the full inventory-migration rationale remain unverified within the packet.^[4][8]