〔Overnight Brief〕COMEX and LME Copper Close at Records on Tariff-Driven Inventory Reallocation, No Global Shortage Required — CME Adds US Zinc Contract for Regional Pricing

0. Weekly Arc

The copper trade is a tariff-driven inventory reallocation, not a deficit story. COMEX and LME both closed at records on Tuesday — COMEX August +1.67% to $6.7095/lb, LME three-month +$76 to $14,350/ton — with three-day cumulative gains of 3.86% and 2.24% respectively ^[1]. The year-to-date copper rally stands at roughly 16% ^[1]. Yet Reuters analysts are explicit: there is no global copper shortage, the upside is the pull of US-bound metal draining inventories elsewhere ^[2]. Shanghai copper night session +0.50% confirmed the bid extends into Asian hours ^[3]. Two prints decide next: US copper-tariff clarity, and Fed Chair Warsh at Jackson Hole on Friday, which could reprice the dollar and metals together ^[1].

1. Policy and Macro Backdrop

• **[NEW] US critical-minerals concession:** Brazilian Mines and Energy Minister Alexandre Silveira disclosed at Exposibram in Minas Gerais that President Trump and his team conceded in May White House talks that the US has lost the critical minerals race to China ^[4]. Minas Gerais accounts for over 40% of Brazil's national mineral output, framing the Brazilian processing pitch ^[4].
• **[NEW] Fed: hawkish dissent, fresh Friday test:** Fed's Collins said rates should be raised "as soon as possible" absent sustained evidence of inflation decline ^[5]. Warsh's Jackson Hole speech Friday is the second catalyst, a single speech with implications for the dollar and metals ^[1][5].
• **[NEW] China policy:** Shanghai announced an expansion of copper and aluminum trading scale, plus accelerated sequencing of lithium, cobalt, and nickel futures — a parallel push on industrial and battery metals ^[5].

2. Key Market Data

• **[NEW] COMEX August copper:** +1.67% to $6.7095/lb, record close; three-day cumulative +3.86% ^[1].
• **[NEW] LME three-month copper:** +$76 to $14,350/ton, +0.53% on the day, +2.24% over three sessions; roughly 1.2% below the intraday record of $14,527.5/ton set in January ^[1][6].
• **[NEW] LME complex:** cobalt flat at $56,290/ton, zinc +$55 to $3,890/ton, tin +$104 to $55,852/ton, nickel +$16 to $17,042/ton, lead -$6 to $1,905/ton, aluminum +$10 to $3,238/ton ^[6].
• **[NEW] Shanghai night session:** SHFE copper +0.50%, international copper +0.42%, aluminum +0.74%, zinc +1.23%, lead +0.06%, nickel -0.02%, tin +0.04%, alumina -1%, aluminum alloy +0.52%, stainless steel +1.59% ^[3].
• **[ONGOING] Driver mix:** US tariff expectations rerouting inventory, LME spot tightening, demand from grids, data centers, defense and electrification ^[1].

3. Structural Layer: Regional Pricing Tools

• **[NEW] CME US zinc futures:** First trade printed August 20 via Globex between Glencore and Trafigura in the September contract, after CME shifted zinc futures to "US duty-paid delivery" in March 2026 ^[7]. CME Metals Global Head Kim Hennig framed it as a response to "geopolitical fragmentation" and the emergence of distinct regional price signals ^[7]. The new contract sits beside, not replaces, LME zinc's +$55 to $3,890/ton close ^[6][7].
• **[NEW] Chile consolidation:** Pucobre and Codelco formed JV Minera Puntilla around an $870 million Chilean copper project ^[8].
• **[NEW] China demand anchor:** CATL locked 7,000 tons of lithium carbonate, equivalent to one month of output from the Jianxiawo mine ^[5].

4. Earnings Read

• **[NEW] Chihong Zinc & Germanium H1 2026:** revenue 13.837 billion yuan, +30.78% YoY; net profit 1.59 billion yuan, +70.58% YoY ^[9]. The print validates that Chinese upstream zinc-leveraged names are catching the LME zinc +$55/$3,890 close, with the SHFE night session zinc +1.23% confirming the same direction ^[3][6][9].

5. Contradictions and What Would Falsify the Bid

• No global copper shortage, yet both Western benchmarks are at record closes — the trade rests entirely on the tariff incentive and the speed of inventory migration into the US ^[1][2]. A tariff rollback, or even a delay in announcement, would unwind the geographic squeeze.
• China-side policy is split: Shanghai is widening copper and aluminum trade while simultaneously accelerating lithium, cobalt, and nickel futures, a hedge that copper is supply-constrained but battery metals are not ^[5].
• Fed-side risk: Collins's "as soon as possible" line is the only concrete hawkish voice on the wire; Warsh's Friday speech is the test of whether the dollar headwind stays or lifts ^[1][5]. Treat the two as a pair.
• Source quality control: the tariff-redirects-inventory thesis is single-sourced via Reuters analysts and one Chinese-language relay; the Warsh-Jackson-Hole-copper link is the outlet's framing, not a stated mechanism ^[1][2]. The Codelco-Pucobre JV is a single-wire headline with no deal terms beyond the $870M project value ^[8].