Tin’s $670/t Spot Premium and Record Yangshan Copper Premium Meet a 1.76% Copper Drop: Physical Tightness Versus Broad Selling

0. Overnight Arc

• **[ONGOING] Physical tightness versus broad selling:** LME copper, aluminum, zinc and nickel fell while tin and lead rose; Chinese night contracts were mostly lower, with Shanghai lead the only listed gainer ^[1][2][3][4].
• **[NEW] Yet the physical premiums contradicted the macro-led tape:** LME tin spot carried a $670/t premium over the three-month benchmark, while the Yangshan copper premium stayed at a record high for a third day even as international copper failed to reverse its decline ^[5][6][7].
• **[ONGOING] Source quality:** The SMM close note carries the most numerical detail, whereas the Jin10 items are headline-only relays and the tin report is a Sina Finance story relayed by Tonghuashun ^{[5][6][7][8][9]}.

1. Price Tape and Source Checks

• **[NEW] LME close, first recap:** Copper fell $189 to $13,399/t; aluminum fell $20 to $3,010/t; zinc fell $6 to $3,710/t; nickel fell $241 to $15,985/t; lead rose $8 to $1,894/t; tin rose $48 to $46,700/t; cobalt was unchanged at $33,525/t ^[1].
• **[NEW] LME close, second recap:** Aluminum fell 0.38% to $3,013.50/t, copper 1.76% to $13,366/t, nickel 1.85% to $15,915/t and zinc 0.52% to $3,706.50/t, while lead rose 0.45% to $1,894/t and tin rose 0.72% to $46,700/t ^[2].
• **[NEW] Data check:** Copper, aluminum, zinc and nickel differ between the two recaps, while lead and tin match; because the packet does not specify a shared contract or methodology, the prints should be treated separately rather than blended ^[1][2].
• **[NEW] China night session:** Alumina fell 2.32%, Shanghai nickel 1.47%, Shanghai zinc 1.05%, Shanghai copper 0.62%, international copper 0.48%, Shanghai tin 0.31%, stainless steel 0.25%, Shanghai aluminum 0.18% and aluminum alloy 0.02%, while Shanghai lead rose 1.37% ^[3][4].
• **[NEW] Nickel timestamp:** An earlier LME main-contract snapshot showed nickel down more than 1% at $16,030/t, above both reported closes, so it is an intraday quote rather than a directly comparable settlement ^[1][2][10].

2. Copper: Physical Tightness, Macro Pressure

• **[ONGOING] Domestic copper held:** The SHFE main contract rose 0.01% to CNY105,150/t; SMM said concentrate tightness was transmitting toward smelters, domestic supply briefly tightened, and low inventories supported spot premiums ^[6].
• **[NEW] The inventory split remained the central contradiction:** Domestic refined-copper social inventory stabilized near a 2.5-year low, while LME inventory rose by nearly 9,000 t to its highest level since late June ^[6].
• **[ESCALATED] Premium tension:** Domestic spot premiums recently narrowed substantially, but the Yangshan premium continued higher because domestic stocks were low and import parity had risen markedly ^[6]. The headline feed then put Yangshan at a record high for a third consecutive day even as international copper fell ^[7].
• **[ESCALATED] Macro pressure remained dominant:** SMM cited repeated U.S.-Iran tensions without clear de-escalation, an oil rebound, sticky U.S. inflation, expectations of continued Federal Reserve tightening, a scenario of 75 bp of cumulative hikes through January, a strong dollar and weak overseas risk appetite ^[6].
• **[NEW] Positioning deteriorated:** New York copper’s speculative net-long position dropped to a one-year low even as Chinese physical stress persisted ^[8]. A headline-only Saxo Bank relay attributed copper’s four-month low to the AI investment outlook and Federal Reserve hike expectations ^[9].

3. Tin: Spot-Benchmark Structure

• **[NEW] LME tin squeeze widened:** Spot surged on Friday to a $670/t premium over the three-month benchmark, the widest since the 2023 large squeeze, as buyers confronted supply constraints similar to those that had triggered major aluminum and copper squeezes ^[5].
• **[ONGOING] Scale check:** Despite the extreme premium, the spread remained smaller than the unprecedented one-year spot premium of 2021, one of the longest records in modern commodity-market history ^[5].
• **[NEW] LME and Shanghai diverged:** LME tin rose 0.72% to $46,700/t, while Shanghai tin fell 0.31% overnight ^[2][3][4].
• **[NEW] Falsifiable test:** Whether the $670/t spot premium holds or begins to narrow will indicate whether the physical squeeze is persisting or easing ^[5].

4. Lithium: Price, Supply and Capacity

• **[NEW] Lithium carbonate stayed weak:** Several Guangzhou Futures Exchange lithium carbonate futures contracts hovered around CNY90,000/t at the November 13 close, well below the year’s high, as expectations of supply growth and a temporary demand slowdown weighed on futures and spot prices ^[11].
• **[ONGOING] Shanghai Steel Union lithium analyst Li Pan:** Further large downside may be limited; if overseas shipments and demand weaken as expected, prices could remain weak, but spot inventories are still destocking and prices have fallen below the costs of some purchased-ore smelters and lithium-slag extraction, creating expectations of supply cuts ^[11].
• **[NEW] Lithium watchlist:** The actual restart at the Jianxiawo mine, arrivals from Australia and Africa, downstream production schedules and the pace of inventory destocking are the key variables ^[11].
• **[NEW] Tianqi Lithium capacity:** On November 12, Tianqi Lithium completed a 1,000 t/year battery-grade metallic lithium project in Tongliang, Chongqing, described as China’s first fully automatic battery-grade metallic lithium factory; after production starts, the company’s Chongqing metallic-lithium capacity will rise to 1,600 t/year ^[12].
• **[ONGOING] Corporate outlook:** Multiple lithium-battery supply-chain companies expressed firm confidence in the industry’s medium- and long-term development prospects ^[11].

5. Structural Signals and Decision Map

• **[NEW] Copper benchmark:** An industry poll indicated that Chinese copper smelters are likely to accept a fixed negative price in next year’s term contracts for the first time, but will resist moving to spot pricing, as a years-long concentrate shortage challenges the decades-old benchmark ^[13].
• **[NEW] U.S. aluminum pricing:** CFTC Chairman Michael Selig said the agency is planning an overhaul of U.S. aluminum pricing and considering new contracts to improve transparency ^[14].
• **[NEW] Codelco participation:** Chile is considering ways to bring private companies into Codelco’s mining operations and infrastructure, potentially creating partnerships well beyond the state copper giant’s existing exploration ventures ^[15].
• **[NEW] Overseas operating risk:** Zijin Mining’s Liu Xiaokang said Chinese mining companies need to focus on their ability to sustain operations overseas ^[16]. Zhang Lihong said Chinese mining companies going abroad face numerous new challenges ^[17].
• **[ONGOING] Conference evidence was qualitative:** SMM’s Shanghai nickel-chromium-manganese-stainless-steel event and its Chengdu mining forum covered policy, tailings, smart mining, supply-demand and price-cycle themes, but the packet excerpts contained no new quantitative market readings ^[18][19].
• **[NEW] Decision map:** For copper, watch the LME inventory build, the record Yangshan premium and whether the one-year-low speculative position begins to recover; for tin, watch persistence of the $670/t premium; for lithium, watch Jianxiawo’s restart, overseas arrivals, downstream output and destocking; structurally, watch the copper benchmark poll, CFTC contract design and Chile’s Codelco partnerships ^{[11][5][6][14][7][8][13][15]}.