LME Copper Stocks Surge by 55kt to Soften Backwardation, Yet Physical Constraints Keep Prices Supported London Metal Exchange inventories jumped by over 55 thousand tonnes across two trading sessions, narrowing the cash-to-three-month backwardation spread to $176 per tonne. Despite short-term liquidity relief, structural supply tightness and impending tariffs are set to maintain underlying strength in copper prices. Signs of immediate physical supply strain in the international copper market have moderated following a substantial influx of metal into global warehouse networks. Total available inventories at the London Metal Exchange (LME) expanded by more than 55,000 metric tonnes over a two-day period. This sudden rise in available stock successfully narrowed the acute premium paid for spot delivery over three-month contracts, known as backwardation. However, commodities researchers at ING note that prolonged inventory drawdowns over preceding months leave the market structurally fragile, ensuring that expected tariffs and physical availability continue to underpin prices. LME Inventory Expansion and Backwardation Mechanics Commodity analysts Ewa Manthey and Warren Patterson highlighted that LME registered warehouses received successive heavy deliveries. Following an initial addition exceeding 20,000 metric tonnes, an additional 35,000 metric tonnes entered the system in the subsequent session. This cumulative 55,000 metric tonne surge caused the cash-to-three-month spread to compress down to $176 per tonne. Just days prior, the backwardation spread had spiked to a elevated $545 per tonne. Analysts emphasized that despite this spread relaxation, persistent tightness at the front end of the futures curve indicates the market squeeze has not fully dissipated. Tariff Anticipation and Physical Supply Realities A primary catalyst for the earlier inventory drain was the systematic redirection of copper cargoes toward the US market in anticipation of proposed trade tariffs. Months of steady outflows left global exchange stocks depleted. While recent warehouse receipts provide near-term relief, tight physical availability continues to establish a firm price floor. Analysts caution that while ongoing inflows could temper immediate buying pressure, they are equally capable of driving short-term price volatility across the base metals space. Base Metals Production: Lead and Zinc Output Contract Beyond copper, production metrics across the wider base metals complex showed slight contraction over the same reporting period. Global refined lead output dropped 7.3 percent year-on-year to 580,000 metric tonnes. Concurrently, global refined zinc production experienced a minor decline of 0.8 percent year-on-year, landing at 629,000 metric tonnes. These output reductions reflect broader manufacturing and smelting constraints affecting raw material supply channels globally. US and Canada Bilateral Tariff Negotiations In trade policy developments, officials from the US and Canada are actively negotiating terms to reduce existing duties on metals. Discussions center on lowering tariffs on specified Canadian steel and aluminium shipments from 50 percent down to 25 percent. If ratified as part of a tentative trade agreement, the reduction would significantly alter cross-border metal supply dynamics and input costs for industrial manufacturers in North America. Currency Markets React to US Treasury Liquidity Measures In foreign exchange trading, the US Dollar stabilized following recent selling pressure, influencing major currency pairs. The British Pound (GBP/USD) hovered near the 1.3600 handle during European hours, pulling back modestly from its highest valuation since May 11. Meanwhile, EUR/USD entered a period of bullish consolidation just beneath 1.1700 after touching its highest level since late May. Currency traders are awaiting fresh directional momentum from US initial jobless claims data while monitoring geopolitical risk headlines in the Middle East. Precious Metals: Gold Pauses Near Multi-Month Highs Gold experienced minor intraday losses during Asian trading, pulling back below the $4,500 per ounce threshold. Despite this mild retracement, bullion remains positioned close to its highest price levels since early June. A temporary stabilization in the US Dollar, aided by hawkish messaging in the latest FOMC meeting minutes, prompted short-term profit-taking among gold buyers. However, a pull-back in US Treasury yields continues to limit meaningful downside movement for the metal. Cryptocurrency Markets Stabilize on Liquidity Boost Digital assets reflected broader market stabilization, anchored by macro liquidity measures. Major altcoins including Ripple (XRP), Solana (SOL), and Cardano (ADA) traded steadily following recent rebounds. Ripple held around $1.0951 following a 10 percent rally in the prior session. Technical chart patterns point to potential further gains for XRP and SOL, whereas ADA remains exposed to retracement risks if broader momentum cools. US Treasury Unveils Expanded Bond Buyback Plan Unusually departing from its regular schedule, the US Department of the Treasury announced a major expansion of its liquidity support operations. On Wednesday at 12:32 GMT, the department revealed it will double the maximum purchase limits for debt buybacks in the 10-to-20-year and 20-to-30-year maturity sectors. The maximum operation cap rises from $2 billion to at least $4 billion per session, running from September 9 through November 4. This substantial intervention aims to bolster market depth across long-dated sovereign debt instruments. What this means for you For Industrial Buyers: Fluctuations in metal inventories and potential US-Canada tariff reductions will impact raw material procurement costs for manufacturing and construction sectors globally. For Investors: Bond buyback operations by the US Treasury and shifting commodity inventory levels will influence currency valuations, gold prices, and crypto market sentiment. Questions & Answers 1. How much did LME copper inventories increase? LME copper stocks rose by more than 55,000 metric tonnes across two consecutive trading sessions. 2. How did the cash-to-three-month copper spread react to the stock buildup? The cash-to-three-month backwardation spread narrowed significantly from $545 per tonne on Monday down to $176 per tonne. 3. What tariff adjustments are being discussed between the US and Canada? Negotiations are underway to reduce tariffs on selected Canadian steel and aluminium shipments from 50 percent down to 25 percent. 4. What changes did the US Treasury announce for its bond buyback program? The US Treasury increased its liquidity support buybacks for 10-to-30-year maturity sectors from $2 billion up to at least $4 billion per operation, effective September 9 to November 4. https://trendkia.com/en/market/lme-copper-stocks-surge-by-55kt-to-soften-backwardation-yet-physical-constraints-keep-prices-supported-18946 TrendKia — Har trend, sabse pehle.