〔Day Digest〕International Copper Main Contract Falls 2.11% While Codelco Cuts Output Guidance to Just Over 1.2Mt and Weekly SHFE Copper Stocks Drop 10,764t

0. Session Arc

• **[ESCALATED] Supply stress met price weakness:** The international copper main contract fell 2.11% to CNY92,850 even as weekly SHFE copper stocks fell 10,764t and Codelco lowered 2026 guidance to just over 1.2Mt from 1.34Mt ^[1][2][3].
• **[ONGOING] The smelting economics favored miners:** Imported copper concentrate treatment charges were -$245/t at end-October, while falling sulfuric acid prices eroded a key profit offset for negative-fee smelters ^[4][5].
• **[ONGOING] Positioning offered a counterpoint:** Deutsche Bank said CTAs had sharply reduced copper longs but still leaned toward buying in most scenarios ^[6].
• **[NEW] Source-quality flag:** The Xinhua inputs are headlines only; the detailed nickel account comes from Bisnis Indonesia citing an Indonesian ministry official and a separate item merely repeats the headline; the LME inventory entry shows metal categories but no values in the packet ^{[7][8][9][10][11]}.

1. Price Tape: Domestic Close and External Market

• **[ESCALATED] Copper losses deepened:** Shanghai copper fell 1.52% at midday and 1.94% at the close, while a separate intraday quote showed a 2.00% decline at CNY104,190/t ^[12][13][2].
• **[ESCALATED] External selling broadened:** At 15:07, London copper was down 1.38% and London zinc was down 1.65%; COMEX gold fell 1.34% and silver fell 1.47% ^[12].
• **[NEW] Nickel diverged from the base-metal selloff:** Shanghai nickel gained 1.73% at midday and 2.03% at the close ^[12][13].
• **[NEW] Tin stayed weak:** Shanghai tin fell 3.04% at midday and 2.88% at the close after an early decline of more than 3% took it to its lowest level since late March ^[12][13][14].
• **[NEW] SMM's fundamental framing was two-sided:** Low domestic inventories supported copper, while higher oil prices and rising long-dated U.S. Treasury yields pressured it ^[15].
• **[NEW] The macro catalyst was political and regulatory:** A separate SMM note attributed tin and copper weakness to a hawkish Federal Reserve official's remarks and market expectations of stricter U.S. AI regulation if Democrats took Congress ^[14].
• **[NEW] Bloomberg framed the election shock directly:** Copper reached its lowest level since July as a Washington political shakeup threatened the rapid AI-infrastructure buildout and tariff support ^[16].

2. Copper Supply and Smelter Economics

• **[NEW] Codelco cut guidance amid a reporting failure:** Chairman Bernardo Fontaine said 2026 output would be slightly above 1.2Mt rather than 1.34Mt ^[3]. The company also confirmed that 42,100t had been overreported across 2024 and 2025, ordered an audit, and dismissed nine people at three mines and company offices ^[3].
• **[NEW] Deutsche Bank described an extreme physical squeeze:** Copper above-ground inventories may be heading to their lowest level since 2006, unrestricted inventories were already unprecedentedly low, global mine supply could face its first decline since 2017, and 2027 guidance growth had been halved ^[6].
• **[NEW] SHFE inventories contracted across the complex:** Weekly stocks fell by 10,764t of copper, 58,413t of aluminum, 8,474t of zinc, 12,568t of lead, 798t of nickel, 786t of tin and 7,875t of natural rubber ^[1].
• **[ESCALATED] Smelters faced pressure from both sides:** A negative $245/t treatment charge meant processors had to pay mines to secure concentrate, while sulfuric acid production costs of roughly CNY120-150/t made profitability highly dependent on acid prices ^[4]. Kitco said falling sulfuric acid prices compounded negative-fee losses, some operators extended maintenance outages this quarter, and output was on track for its slowest pace in decades with operating losses increasingly possible ^[5].
• **[NEW] Tongling Nonferous was a corporate counterexample:** A third-party report put the company's first-three-quarter revenue up 51.33% at CNY183.363bn and attributable net profit up 184.75% at CNY5.047bn ^[4].

3. Lithium, Nickel and Policy Signals

• **[NEW] China expanded the lithium derivatives framework:** The China Securities Regulatory Commission approved registration of lithium hydroxide futures and options at the Guangzhou Futures Exchange ^[17].
• **[ESCALATED] Lithium prices stayed firm:** The continuous lithium carbonate main contract rose 3% to CNY93,540 in early trading and gained 2.27% at the domestic close, while Mysteel's morning MMLC battery-grade lithium carbonate midpoint increased CNY500/t to CNY93,100/t ^[18][12][19].
• **[NEW] Indonesia reported prospective nickel cuts:** Cecep Mochammad Yasin, the director of mining business development at Indonesia's Ministry of Energy and Mineral Resources, said Huayou Cobalt, Harita Nickel and Tsingshan Holding Group plan to cut nickel production in 2027 ^[7]. Huayou's planned reduction in Southeast Sulawesi was 50%, while Harita Nickel and Tsingshan were preparing similar moves to counter global oversupply and support prices ^[7]. A separate brief confirmed only that three companies planned cuts, leaving the 50% figure and similar-reduction detail single-report sourced ^[8].
• **[ONGOING] The AI theme remained a demand narrative:** Two Xinhua headlines framed nonferrous metals as the computing-power foundation and said demand for computing metals was rising with the AI boom, but the packet supplies no supporting figures ^[9][10].
• **[NEW] Brazil moved copper into a strategic-minerals framework:** Brazil approved its first critical and strategic minerals list, including rare earths and copper, to attract investment and expand domestic processing as Western countries seek reduced reliance on China ^[20].
• **[NEW] Aluminum project capacity was set to expand:** China Aluminum said its Chinalco Guinea subsidiary plans an EPC contract with Chinalco International for a 1.2Mt Guinea alumina project, with the contract price expected at about CNY6.556bn ^[21].

4. What Would Falsify the Arc

• **Copper-tightness test:** A sustained copper rebound alongside a halt in SHFE inventory declines would weaken the immediate price-versus-inventory squeeze reading, even though Codelco's lower target remains a structural negative for supply; the LME page provides no visible values with which to confirm the signal ^[11][1][3].
• **Nickel-discipline test:** Failure by Huayou Cobalt, Harita Nickel and Tsingshan Holding Group to implement the reported 2027 reductions would weaken the producer-discipline reading, because the 50% figure and similar-cut details currently rest on one detailed report ^[7][8].
• **Lithium-market test:** If carbonate prices stop advancing after the futures-and-options registration, the combined derivatives-and-price signal would weaken; the packet provides no trading-volume, open-interest or contract-usage data ^{[17][18][12][19]}.
• **Macro-pressure test:** A copper and tin rebound despite the AI-infrastructure, tariff and regulatory narratives would weaken the macro-pressure explanation, because Bloomberg and SMM provide narratives without quantified demand elasticities ^[16][14].