Acid, Arbitrage and What the Iran Deal Means for Copper

Benchmark's Copper Weekly is back for episode three — and this week there is one story that dominates the conversation above all else. The Trump-Iran peace announcement sent shockwaves through financial markets, and copper was no exception. Mike and Albert unpack what it means for prices, sentiment and the physical supply chains that underpin copper production.In this episode:The Peace Deal and Copper Prices — When the US-Iran peace announcement landed, copper pushed up sharply and the dollar fell almost to the minute. Albert explains the mechanics behind that relationship and why the news carried both immediate and longer-term implications for the copper market.Will it Hold? — Even if the deal proves fragile, Albert argues there may be enough time for sulphur and acid shipments to move through the Strait of Hormuz and replenish critical stockpiles. A temporary peace may be enough to shift the SX-EW picture meaningfully.US Copper Stockpiles Hit Staggering Levels — April import data came in at around 130kt, and Benchmark's estimates now put total US copper cathode stocks at approximately 1.2Mt. To put that in context, that is more refined copper than Germany, Japan or South Korea consumes in an entire year.Mining Equities vs the Copper Price — Copper prices are up around 10% year to date, but a basket of major mining equities has pushed up close to 40% over the same period. Albert breaks down why equities amplify copper's moves, from profit margin dynamics to retail investor flows and broader ETF positioning.Treatment Charges: Is There a Floor? — With a potential easing of sulphuric acid prices on the horizon, could TCs finally be approaching a turning point? Albert shares what smelters buying forward into 2027 at deeply negative levels are signalling about their own expectations.The Week Ahead — All eyes on Friday and the potential signing of the US-Iran memorandum in Switzerland. Albert also flags the approaching June 30th tariff deadline as a second major catalyst that could move both the CME and LME in the coming days.New episodes every week. Follow the show and leave a rating — it helps us reach more people across the copper market and beyond.Copper Weekly is produced by Benchmark, the leading independent price reporting agency and market intelligence provider for critical minerals and energy transition metals.Benchmark’s Copper Service delivers in‑depth analysis of prices, trade flows, supply and demand fundamentals, smelter and mine dynamics, and regional physical markets – helping producers, traders, consumers and investors understand what is really driving the copper market.To learn more about Benchmark’s copper coverage, explore our data and analysis, or to arrange a demonstration of the service, visit: www.benchmarkminerals.com/copper You can also receive Benchmark’s free fortnightly copper newsletter, featuring market commentary and key developments, by signing up here: www.benchmarkminerals.com/newsletters For questions about this episode, or to speak directly with our copper analysts and team, contact us at: [email protected]