Global Copper Supply Remains Tight, LME Copper Rallies to Stabilize at $13,800/Tonne This Week

1. Core Indicator: Deeply Negative Copper Concentrate Treatment Charges (-$159/dmt)

1. Market signal: Global copper concentrate is in acute shortage, granting miners absolute pricing power amid fierce competition among smelters for ore.
2. Impacts on midstream smelting sector:
   • Small and medium-sized smelters lack income from by-products (gold, silver, sulphuric acid) to offset losses, forcing them to conduct maintenance and cut operating rates passively.
   • Even large smelters maintaining operations face sharply higher raw material procurement costs, directly lifting production costs of refined copper.
3. Key conclusion: The shortage of copper concentrate constitutes the fundamental driver of the current bull market. New mine projects require a 5–10 year development cycle, while ore grades at existing mines trend lower year by year. Therefore, raw material tightness cannot ease rapidly.

2. Supply Catalyst: Persistent Production Disruptions at Major Chilean Copper Mines

1. Long-term headwinds: Codelco’s core El Teniente Mine suffers lingering fallout from prior mining accidents, leading to permanent capacity reductions and sustained output declines over the medium to long term.
2. Short-term shocks: Severe winter blizzards and floods hit the Atacama Region in northern Chile, damaging power transmission lines serving multiple mining sites. Mines operated by Antofagasta, Lundin Mining and Anglo American suspended operations temporarily, with full resumption expected to take 2–3 weeks for some sites.
3. Ripple risks: Beyond Chile, major copper mines in Peru, the DRC and Indonesia face recurring disruptions including hydropower shortages, geological incidents and community disputes, normalizing supply volatility worldwide.
   Market participants fear that further strikes, extreme weather or operational failures will tighten already constrained concentrate supplies.

3. Physical Backing: Continuous Drawdowns in Global Refined Copper Inventories

1. LME warrant inventories, SHFE inventories and domestic Chinese refined copper social inventories fall simultaneously, staying well below the five-year average.
2. Mounting expectations of US tariff adjustments encourage COMEX to siphon refined copper supplies globally. Diversion of cargoes across regions exacerbates spot tightness in Europe, the US and Asia.
3. Strong spot premiums persist, including the Yangshan copper premium and the premium of LME spot copper over futures prices, indicating active restocking by end-users and traders, and limited selling pressure in the market.
   In a low-inventory environment, copper exhibits heightened price volatility. Any unexpected supply disruption can easily trigger sharp rallies.

4. Demand Provides Medium-to-Long Term Support with Resilience Beyond Seasonal Weakness

1. Sustained investment in power grids and ultra-high voltage transmission projects;
2. Rising copper consumption driven by new energy vehicles, energy storage, wind and solar power;
3. Expanding copper usage for power infrastructure and thermal solutions supported by AI data centers and computing infrastructure.
   Against the shift between old and new demand sectors, downstream consumption has not witnessed substantial, prolonged contraction. High copper prices have yet to spark notable negative demand feedback.

5. Short-Term Price Outlook and Key Risks

Bullish Factors Supporting Elevated Prices

1. Deeply negative copper concentrate TCs are unlikely to improve quickly. Smelter output is capped by raw material shortages, limiting incremental refined copper supply.
2. Mine resumption progress in Chile, upcoming weather conditions and operational incidents at mines could trigger shifts in supply expectations at any time.
3. Globally low visible inventories sustain the tight physical balance.

Downside Risks to Monitor

1. Persistently record-high copper prices squeeze profit margins of downstream fabricators. Sustained weak end orders may trigger negative demand feedback later.
2. Macro risks: Slower-than-expected Federal Reserve rate cuts and a periodic rebound in the US dollar could weigh on commodity valuations.
3. Event risks: Profit-taking by speculative long positions following priced-in market expectations may trigger rapid short-term corrections.
4. Long-term variable: Accelerated commissioning of large new copper mines could ease concentrate tightness over the long run (unlikely to materialize in the near term).

Summary