〔Day Digest〕Copper Sub-$6.6 as Centinela Strike Ends; LME Aluminum Breaks $3,000 on 'Surplus' Story Despite 40% Indonesia Drop - Peru Super El Niño the Wild Card

0. Weekly Arc

LME nickel led the overnight base-metals complex with +0.98% while iron ore led the black series at +1.63% ^[1], yet the tone-setters for the day are two cracks: the US copper dark pool slipped below $6.6 (-0.5% intraday) ^[2] and LME aluminum broke $3,000 on a 'next-year surplus' narrative despite reports of a 40% Indonesian supply drop ^[3]. Labor relief at Centinela and Peru's super El Niño warning sit on either side of the copper tape ^[4][5].

1. Copper — Labor Relief Meets a Weather Wild Card

• **[NEW] Strike ends (preliminary):** Chile's Centinela mine (Antofagasta) unions — Distrito Centinela and Minera Esperanza, 700+ members — reached a preliminary collective agreement after a strike that began Oct 7; ratification vote Saturday ^[4]. The week-plus work stoppage, combined with the BHP Escondida strike threat, had been supporting global copper prices ^[4].
• **[NEW] Price action:** US copper OTC (dark pool) below $6.6, -0.5% intraday ^[2].
• **[NEW] Weather risk:** Peru's President Keiko Fujimori on Oct 16 called for national preparation against an 'unprecedented in decades' super El Niño after inspecting Piura province disaster-prevention work ^[5].

2. Aluminum — The $3,000 Break and the Surplus Narrative

• **[NEW] Price action:** LME aluminum broke below $3,000 ^[3]. A Jin10 commentary argues the market is pricing the 'next year surplus' story despite Indonesian supply reportedly down 40%, and flags Middle East restart pace and Indonesian capacity as the real cadence drivers ^[3].
• **[NEW] Counterpoint (single source / headline-only):** a separate Jin10 piece asks why aluminum prices could 'still stay elevated' even if the market turns surplus next year ^[6].
• **[ONGOING] Overnight tape (different timestamp):** LME aluminum +0.7%, alumina main +1%, casting aluminum main +0.37% ^[1] — the $3,000 break is a later-session print, not the full overnight move.

3. Lithium — 'Anti-Involution' and the Consolidation Trade

• **[NEW] Caixin weekly preview:** 'Anti-involution' policy is adjusting lithium-battery investment, with industry consolidation quietly accelerating ^[7] — framing only, no data in the snippet.
• **[NEW] SMM Chengdu conferences (Oct 16):** three concurrent meetings — lithium-battery raw materials, anode industry, and solid-state battery — focused on 2027 regional divergence, 2030 supply-demand path, ESG supply chain and battery-passport risk ^[8]. Single trade-press recap.

4. Other Movers and Macro Tape

• **[NEW] Overnight base metals:** LME nickel +0.98% led, Shanghai nickel +0.75%; Shanghai copper -0.03%, lead -0.12%, tin -0.37% ^[1].
• **[NEW] Black series:** iron ore +1.63% led; hot-rolled coil, rebar, stainless steel around +0.4%; coking coal -0.94%, coke -0.03% ^[1].
• **[NEW] Precious metals weekly:** COMEX gold weekly -0.7%, COMEX silver -6.41%; Shanghai gold weekly +0.3%, Shanghai silver -3.35% ^[1].
• **[NEW] China export curbs:** MOFCOM and MOST proposed adding 40 technologies across AI, biopharma and solar PV to the export ban/restriction list, open for public comment ^[1].

5. What Decides Next

• Saturday's Centinela union ratification vote — a yes ratifies the deal and removes the labor premium; a no reopens the supply-risk bid ^[4].
• Whether LME aluminum's $3,000 break holds on the next retest — a failed retest would validate the Indonesian-tight / supply-gap counter-narrative ^[3][6].
• Peru's super El Niño trajectory — any formal emergency declaration or mining-region disruption would invert the copper supply tape ^[5].