China's high-frequency copper and aluminum inventories show improving consumption in June-July, with copper spot premium rising to $100/t

Overview

This report tracks high-frequency inventories of China's base metals and iron ore for the week ending July 17, 2026, using visible inventory changes as a proxy for consumption. The core conclusion is that although China's weighted end-demand for copper declined 5% YoY in 5M'26, apparent consumption rose 8% YoY in May, and the latest high-frequency data further indicate marginal strengthening in copper and aluminum consumption in June-July.

Core views

Copper and aluminum are the most positive signals in this period: both have recorded strong destocking for a fifth consecutive week, with copper inventories falling to about 119-120kt and aluminum inventories returning to about 1.0Mt. Combined with the Yangshan Copper Premium rising to $100/t, this indicates improving physical demand and inventory tightness in China. JPM Commodities Research expects a sizable overseas deficit in 3Q, which may push LME prices higher to attract metal from China to global markets. By contrast, zinc is still restocking and inventories remain significantly above historical averages; steel inventories are elevated YoY and steel mill profits are pressured by higher coking coal prices; iron ore inventories saw about 3Mt of destocking last week, but global shipment data still show regional divergence.

Analysis framework

The report uses a high-frequency inventory channel-check approach, observing weekly changes in China's visible inventories across SHFE, bonded warehouses, and regional warehouses as proxy indicators of end-demand strength; it also combines Yangshan Copper Premium, LME copper spot, steel mill profits, steel inventories, iron ore inventories, and global iron ore shipment data to cross-validate metal demand and price pressures.

Methodology notes

• commodity_inventory_trackingChina metals inventory channel check

  Using changes in visible inventories as a proxy for consumption trends

  Rapid destocking is usually interpreted as improving downstream consumption, while restocking or inventory accumulation may point to weakening demand or rising supply pressure.

• physical_market_indicatorYangshan Copper Premium

  China copper physical market premium indicator

  The Yangshan Copper Premium rose to $100/t, which the report treats as a signal of strong physical demand, import attractiveness, or rising spot tightness.

• macro_cross_checkChina macro and financing data cross-check

  Cross-validation of macro data and high-frequency inventory signals

  The report also notes that China's real GDP growth slowed to 4.3% YoY in Q2 from 5.0% in 1Q, while TSF growth in June fell to a record-low 7.4%, suggesting inventory improvement should be assessed against a backdrop of macro slowdown.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• 铜

  Core positive asset

  Strengths

  China's visible inventories have fallen to about 119-120kt, about 30kt below the 2025 low, and the Yangshan Copper Premium has risen to $100/t, indicating strong physical demand.

  Weaknesses

  Weighted end-demand consumption in 5M'26 fell 5% YoY, and macro GDP and TSF data are weak.

  Comparison

  Compared with zinc and steel, copper shows stronger signals of inventory tightness and premium strength.

  Risks

  If destocking does not continue, or if macro demand slows further, price support may weaken.

• 铝

  Positive asset

  Strengths

  Strong destocking of about 52-54kt last week, with total visible inventory returning to about 1.0Mt, indicating improved consumption in June-July.

  Weaknesses

  The report does not provide a premium-based confirmation indicator as strong as copper's.

  Comparison

  Together with copper, it forms the strongest consumption improvement signal in this period's high-frequency data.

  Risks

  If the inventory decline mainly reflects short-term restocking patterns or supply disruptions, the consumption improvement signal may be overstated.

• 锌

  Negative or cautious asset

  Strengths

  The report does not provide a clear positive demand signal.

  Weaknesses

  Restocking of 3kt last week brought total onshore inventory to 268kt, more than 130kt above the five-year seasonal average.

  Comparison

  In clear contrast to the continuous destocking in copper and aluminum.

  Risks

  High inventories may pressure prices and earnings expectations for related mining companies.

• 钢铁

  Cautious asset

  Strengths

  Manufacturing resilience may provide some demand support.

  Weaknesses

  Steel mill profits remain under pressure due to rising coking coal prices, while steel inventories were flat WoW and up 12% YoY.

  Comparison

  Compared with copper and aluminum, the steel chain shows weaker inventory and margin signals.

  Risks

  A significant contraction in fixed-asset investment and rising raw material costs may continue to pressure profits.

• 铁矿石

  Neutral with a watchful stance

  Strengths

  China's iron ore inventories destocked by about 3Mt last week, ending around 9 weeks of flat inventory.

  Weaknesses

  Global shipments were down 2% YoY in May, while Brazil shipments were down 8% YoY, showing regional divergence.

  Comparison

  Iron ore has seen destocking, but the demand elasticity signal is less clear than for copper and aluminum.

  Risks

  Weaker steel profitability and rising inventories may in turn pressure iron ore demand.

• Antofagasta

  Preferred stock idea

  Strengths

  JPMorgan believes copper price support can drive an FCF inflection, 2028E valuation is not expensive, and the company benefits from more than 30% brownfield growth.

  Weaknesses

  Sensitive to copper prices and project execution.

  Comparison

  It is the clearly preferred name among EMEA mining stocks in the report.

  Risks

  Copper price declines, cost inflation, or growth projects underdelivering.

• BHP与Rio Tinto plc

  Neutral stock idea

  Strengths

  Large diversified miners with resource and portfolio advantages.

  Weaknesses

  The report maintains Neutral on their London-listed shares and does not list them as top picks.

  Comparison

  Compared with Antofagasta, the report does not assign the same upside leverage.

  Risks

  Commodity price volatility, cost pressure, and slower China demand.

• Anglo American

  Negative stock idea

  Strengths

  Offers exposure to diversified mining assets.

  Weaknesses

  JPMorgan rates it Underweight, citing risks including cost inflation in the iron ore division and potentially weak diamond business performance in H1'26.

  Comparison

  It carries the most cautious rating among the EMEA mining stocks mentioned in the report.

  Risks

  Cost inflation, weak diamond business, and uncertainty around portfolio restructuring.

Key data

• Weekly change in China's copper inventories-17ktChina's visible copper inventories continued to decline in the week ending July 17, 2026.
• China visible copper inventoryabout 119-120ktThe report describes this as the tightest level for the same period in the past decade and about 30kt below the 2025 low.
• Yangshan Copper Premium$100/tReached this level at the end of last week, the first time since May 2025.
• Weekly change in China's aluminum inventoriesabout -52 to -54ktDifferent sections of the report cite 52kt and 54kt of destocking, both pointing to strong destocking.
• China visible aluminum inventoryabout 1.0MtAluminum inventories have returned to about 1Mt.
• Weekly change in China's zinc inventories+3ktZinc diverged from copper and aluminum, with restocking last week.
• China onshore zinc inventory268ktMore than 130kt above the historical five-year seasonal average and at a high since 2022.
• China Q2 real GDP4.3% YoYBelow 5.0% YoY in 1Q.
• June TSF growth7.4%Slowed by 0.3 percentage points MoM to a record low.
• China steel inventoryFlat WoW, YoY +12%For the week ending July 17, inventories have rebounded since June.
• Weekly change in iron ore inventoriesabout -3MtDestocking occurred after about 9 weeks of flat inventories.
• Global iron ore shipmentsMay MoM +2%, YoY -2%Australia shipments in May: MoM +5%, YoY -2%; Brazil shipments in May: MoM -3%, YoY -8%.

Impact & implications

If copper and aluminum destocking persists and resonates with the overseas deficit in 3Q, copper and aluminum prices may receive stronger support, benefiting mining companies with copper growth and cash flow leverage. JPMorgan continues to favor Antofagasta among EMEA mining stocks, citing copper price support, an FCF inflection, undemanding 2028E valuation, and more than 30% brownfield growth; however, macro slowdown, weak financing, high zinc inventories, and pressure on steel profitability still limit a one-way bullish interpretation for the entire metals sector.

Risks

• Weakening China macro data: Q2 real GDP growth slowed to 4.3% YoY, and June TSF growth fell to a record-low 7.4%.
• Copper and aluminum inventory drawdowns may be affected by short-term seasonality, reporting lags, or supply factors, and do not necessarily equal sustainable end-demand improvement.
• High zinc inventories and ongoing restocking may weigh on overall base metals sentiment.
• Steel mill profits are pressured by rising coking coal prices, and steel inventories are up YoY, which may affect iron ore and steel-chain demand.
• The 3Q overseas deficit and rising LME price outlook depend on changes in global supply-demand balances and metal flows, leaving room for forecasting error.
• Covered mining stocks also face risks from cost inflation, project execution, FX, regulation, and commodity price volatility.

What to watch

• Whether China's visible copper and aluminum inventories continue consecutive destocking.
• Whether the Yangshan Copper Premium can hold around $100/t or move higher.
• Whether LME copper prices rise due to the 3Q overseas deficit and attract metal from China to global markets.
• Whether China's TSF, manufacturing, fixed-asset investment, and property-chain data improve.
• Whether zinc inventories can stop restocking and return to historical ranges.
• Subsequent changes in steel mill profits, coking coal prices, and steel inventories.
• Trends in China's iron ore port inventories and shipments from Australia and Brazil.
• Follow-up earnings, costs, and capital expenditure guidance from covered companies such as Antofagasta, BHP, Rio Tinto, and Anglo American.