China Metals Intelligence — Copper's Shortage Is a Location Problem

China's copper inventories across major regions fell to approaching 60,000 tonnes in the week to 5 November, about 140,000 tonnes below the same period last year on SMM's comparison, and the Yangshan bill-of-lading premium set a record $210/t on 6 November. Yet the import window turned profitable, China took just 7.6% of Chile's October refined copper exports against 60.6% of its concentrates, and secondary copper rod operating rates ran 13.75 percentage points below last year. The constraint on Chinese buyers is real, but it points to the geography of available supply rather than an absolute shortage of metal.

TL;DR

• Copper: Major-region inventories approached 60,000 tonnes on 5 November, down under 10,000 on the week and about 140,000 below last year, while the Yangshan bill-of-lading premium hit a record $210/t.
• Copper imports: The import window turned profitable from a loss near ¥1,243/t a week earlier, with US imports 17% higher year on year and SMM putting COMEX stocks at a record 731,428 tonnes.
• Chile: China took 13,652 of 180,665 tonnes of October refined copper exports, and 818,899 of 1,350,404 tonnes of ore and concentrates.
• Copper demand: Secondary copper rod operating rates ran at 13.82%, down 13.75 percentage points year on year.
• Codelco: A preliminary review found 42,100 tonnes of improperly recorded 2024–25 output; 2026 guidance fell to just above 1.2 million tonnes.
• Aluminium: Major-region billets fell 12,000 tonnes to 126,000, a fourth consecutive weekly decline, as processing fees rose in every surveyed region.
• Zinc and lead: Shanghai and Ningbo zinc premiums each rose ¥30/t against Guangdong's ¥10/t, while lead's five-region social inventory rose about 2,000 tonnes to 19,200.
• Tin: Chinese social inventory and SHFE warrants sat near multi-year lows and utilisation fell to 26.92%, yet SHFE tin fell 2.96%.

The Inventory Board

Social, regional and SHFE registered-warrant inventories have different definitions, populations and reporting periods and are not additive. The copper figure is SMM's major-regions survey, not the national social-inventory series used previously. No nickel row appears because no coverage-day observation was published for this period.

Prices, Premiums and Terms

Premium categories are compared across successive assessments of the same category. The import-margin comparison uses different conventions from the previous edition's arbitrage estimate. Exchange positioning and non-Chinese exchange inventories are covered separately in Bloodstone Research's LME Positioning Intelligence series.

Copper: Where the Available Metal Sits

SMM put inventories across China's major regions at approaching 60,000 tonnes as of 5 November, down less than 10,000 tonnes on the week, and in the same assessment set that against roughly 200,000 tonnes a year earlier. The premium structure followed: the Yangshan bill-of-lading premium averaged a record $210/t on 6 November, while SMM's #1 cathode in Shanghai averaged ¥2,100/t over the 2611 contract, up from ¥1,225/t across the week including a ¥600/t single-day rise on 4 November that SMM says disrupted the futures-spot structure. On domestic evidence alone this is a squeeze.

Import economics changed more than the premiums did, and in the opposite direction. A week earlier the loss on importing cathode stood near ¥1,243/t; on 5 November the front-month margin ran from a ¥130/t loss to a ¥260/t profit, and by 6 November SMM states the window is profitable. It attributes the shift partly to a narrowing of the premium US prices have carried over international levels, which it says weakens the US siphoning effect, and flags returning ex-China cathode as a potential supplement to supply — the first point this year at which the mechanism drawing metal away from China has been described as capable of reversing.

What makes that mechanism visible is trade data rather than premiums. US imports of refined copper and alloys reached 1.52 million tonnes over the first nine months, 17% higher year on year, and SMM puts COMEX stocks at a record 731,428 tonnes. The proximate cause is a proposed 15% US tariff on refined copper imports from 2027, unconfirmed but sufficient to pull cathode across in advance of it. Chile's October customs data, as reported by SMM, shows the resulting split: of 180,665 tonnes of refined copper exported, 13,652 tonnes, or 7.6%, went to China, while of 1,350,404 tonnes of ore and concentrates, 818,899 tonnes, or 60.6%, did. Those figures describe where Chile sent its own exports rather than the destination of global refined trade, but they illustrate that feedstock and finished metal increasingly travel to different places.

Fabrication does not corroborate the premiums, and the clearest evidence is operating rates rather than sentiment. Secondary copper rod ran at 13.82% in the week to 5 November, down 13.75 percentage points year on year, with sector gross profit ¥243/t lower at ¥417/t. The cathode-rod to secondary-rod spread widened to ¥2,080/t, which should favour secondary material, but SMM reports raw-material premiums and invoice tax rates leaving the improved economics largely on paper. Its summary is that copper prices fell without supply loosening and spreads widened without transactions strengthening.

Codelco: A Preliminary Review and a Large Guidance Cut

At an extraordinary shareholders' meeting on 5 November, Codelco chairman Bernardo Fontaine said the company had preliminarily identified around 42,100 tonnes of copper improperly recorded as production across 2024 and 2025, comprising unfinished material and duplicate entries across divisions, with nine employees dismissed and audits ordered. The guidance cut is the larger number: 2026 production falls from about 1.34 million tonnes to slightly above 1.2 million, with around 1.3 million expected annually over four years and the 1.7 million tonne end-of-decade target already abandoned.

SMM additionally reports a possible 18,800-tonne overstatement of inventories, an estimated $120–140 million impact and audits by KPMG and EY; those details appear in SMM's account rather than in wire coverage of the meeting. Codelco separately halted the Andina beneficiation plant after a tailings-system blockage caused a spill that may have reached the Blanco River, with no duration published. All of it is preliminary, but for a market counting visible stocks closely, a possible 18,800-tonne overstatement is a reminder that such figures are accounts rather than observations.

Aluminium: A Fourth Weekly Draw as Processing Fees Rebound

Billet inventory across major consuming regions fell 12,000 tonnes from 29 October to 126,000 tonnes, which SMM calls a fourth consecutive weekly decline following the third recorded in the previous edition, leaving stocks roughly 15,000 tonnes below the same period of 2025. Foshan accounted for 9,000 tonnes of the fall, Huzhou 2,000 and Wuxi 1,000, with Nanchang unchanged. Wuxi's run of stock builds, which drove last week's divergence, has ended, so the aggregate and the regional detail point the same way for the first time in several weeks.

Processing fees rebounded everywhere surveyed. Foshan's 90mm fee rose ¥90/t to ¥470/t and Wuxi's ¥110/t to ¥470/t, converging from a ¥20/t gap, while Nanchang's rose ¥230/t to ¥630/t; all four Foshan and Wuxi figures reconcile exactly against the week to 29 October. Shipments ran at 52,000 tonnes over 26 October to 1 November, down 4,000 and falling for a second week, while the A00 spot price fell ¥360/t to ¥23,380/t. Rising conversion margins alongside falling shipments and a falling spot price points to tightening billet availability rather than stronger extrusion demand.

Zinc: Three Ports, Three Premiums, One Cause

Zinc premiums rose everywhere SMM assesses them, at markedly different rates. The Shanghai average rose ¥30/t week on week, with ordinary domestic brands at ¥25/t over the 2612 contract on Friday. Ningbo also rose ¥30/t, reaching ¥70/t over the 2612 contract and ¥45/t over the Shanghai premium, the two assessments agreeing precisely on Shanghai's level. Guangdong rose only ¥10/t, with mainstream #0 zinc at ¥20–50/t over the market.

In each case SMM attributes the rise to arrivals: Ningbo's shortfall follows typhoon-delayed contract cargo with fewer traders shipping, Guangdong's arrivals were low enough to keep circulating supply tight, and traders held quotes firm throughout. The demand language is consistently unflattering. SMM expects low inventory to keep supporting Guangdong premiums but describes end-user demand as weak, and says prices have not reached downstream psychological levels, limiting purchase releases. Buying improved because prices fell, not because consumption rose, and SHFE zinc agrees, its 2612 contract closing 1.34% lower at ¥25,455/t with SMM reporting bullish funds exiting on weaker end-use expectations.

Lead: Last Week's Halving Partly Reverses

Lead is the complex's counterexample, and the only metal whose social inventory rose. Five-region stocks stood at 19,200 tonnes on 5 November, about 2,000 tonnes above 29 October and about 100 below 2 November, which reconciles closely with the 17,100 tonnes in the previous edition and confirms the halving reported a week ago has begun to unwind rather than extend. SHFE registered warrants were unchanged at 6,974 tonnes. Visible Chinese lead stocks rebuilding while copper's fall towards 60,000 tonnes is a useful check on reading the complex as uniformly tight.

Lead prices firmed while copper, aluminium, zinc and tin fell. SMM's #1 lead rose ¥200/t and SHFE lead reclaimed ¥16,000/t, settling 0.25% higher. Secondary refined lead was quoted at a ¥0–100/t premium to the SMM #1 average ex-works, against a ¥0–50/t discount a week earlier, and mainstream primary lead at ¥50–150/t. SMM reports sellers more willing while circulating supply stayed limited, buyers largely waiting on existing inventory, and transactions sluggish — supply recovering into unchanged demand.

Nickel: A Cost-Push Price Rise

SMM's battery-grade nickel sulphate average price edged higher on 6 November, and the mechanism is on the cost side. SMM attributes the rise in nickel prices to the US midterm results and Indonesia's quota announcements, which raised the immediate production cost of sulphate, while some producers carrying high inventory sought production cuts to destock and refined nickel's persistent premium over briquette prompted smelters to switch back to original production.

Demand gives no support. SMM reports expectations of reduced end-use demand, weak downstream sentiment towards building spot order inventories and low acceptance of nickel salt prices, with sentiment factors at 2.1 for upstream smelters' willingness to sell, 2.0 for precursor purchasing and 2.1 for integrated enterprises. A price that rises because its input rose, while producers cut output to clear stock and buyers decline to engage, is not evidence of a tightening market.

Tin: Record Scarcity Against a Technology Repricing

Tin has the complex's most constrained supply position and had its largest price fall. SMM's China social inventory stood at 6,342 tonnes for the week ended 30 October, down 347 tonnes, while SHFE registered warrants fell 173 tonnes to 1,574 tonnes, both near multi-year lows. Yunnan and Jiangxi smelter utilisation fell 0.19 percentage points to a historical low of 26.92%, reconciling exactly with the 27.11% reported for the week to 23 October, and October refined production fell 46.5% month on month to 8,615 tonnes, with a rebound to around 15,615 tonnes expected in November. Myanmar's Wa State resumptions remain at 40–50%, with full recovery pushed to 2027.

Prices moved against that. SMM's #1 tin stood at ¥356,400/t on 5 November, ¥4,100/t higher on the day but ¥29,450/t below the ¥385,850/t assessed a week earlier, while the most-traded SHFE contract closed the session beginning 5 November down 2.96% at ¥343,040/t, dipping to ¥337,400/t before recovering as open interest rose. SMM attributes the pressure to the technology sell-off of 5 November, when the Philadelphia Semiconductor Index fell 12% and the Nasdaq 5.52% on AI capital-expenditure concerns — a reported interpretation rather than established causation, but one that fits where tin's demand case rests, with the solder peak season wound down from a 79.10% operating rate and SMM naming Nvidia's results on 18 November Beijing time as a verification point.

Key Risks

Returning ex-China cathode. A profitable import window and a narrowing US price premium could draw metal back quickly, easing premiums with no change in Chinese demand. Confirmation of the proposed 2027 US tariff would pull the other way.

Premiums without fabrication. Record premiums coexist with a secondary rod operating rate 13.75 points lower year on year and sector gross profit down ¥243/t. SMM warns explicitly of a pullback risk.

Codelco's figures are preliminary. The production and inventory overstatements and the financial impact are preliminary with audits in progress, and the Andina halt has no published duration.

Supply-driven destocking reversing. Zinc's premiums reflect typhoon delays and low arrivals, aluminium's draw coincides with falling shipments, and lead has already begun to reverse.

FAQ

Why are China's copper premiums at records if the metal is not scarce?

A proposed 15% US tariff on refined copper imports from 2027 has pulled cathode towards the United States ahead of it, with US imports 17% higher year on year over January to September. Chinese buyers are competing for a thinner pool of nearby metal, which raises premiums without implying a global shortage.

Did Chile's October copper exports go to China?

Largely not, for refined metal. Of 180,665 tonnes of refined copper exported, 13,652 tonnes went to China; of 1,350,404 tonnes of ore and concentrates, 818,899 tonnes did. Those are Chile's own export destinations and do not describe global trade.

Why did tin fall when Chinese inventories are at multi-year lows?

SMM attributes the pressure to the 5 November technology sell-off, when the Philadelphia Semiconductor Index fell 12% and the Nasdaq 5.52%. Tin's demand case rests increasingly on computing-power solder orders, so a repricing of that expenditure reaches the metal.

The Bottom Line

The week to 5 November produced the tightest set of Chinese physical readings of the year without a matching set of prices, and the two are reconcilable. Major-region copper inventories approached 60,000 tonnes against roughly 200,000 on SMM's year-earlier comparison, Yangshan premiums set a record $210/t, aluminium billets fell for a fourth week, and tin's Chinese inventory gauges sat near multi-year lows. Prices did not follow uniformly: copper, aluminium, zinc and tin fell while lead and nickel rose, and physical premiums climbed in copper and all three assessed zinc markets even as futures weakened.

What the evidence describes is supply and logistics rather than demand: tariff-shaped relocation in copper, typhoon-delayed arrivals in zinc, a 46.5% monthly production fall in tin, and recovering secondary output in lead. SMM's demand language is consistently negative, and in copper the fabrication evidence is harder than sentiment, with secondary rod operating rates 13.75 points below last year. Scarcity and weak consumption are not contradictory when the scarcity originates on the supply side — which makes the next change in import economics more important than another premium record.

Data and Source Note

Physical-market observations are drawn from Shanghai Metals Market reports published on 5 and 6 November 2026, compared where possible with the readings preserved in Bloodstone Research's 30 October edition. Exchange positioning and non-Chinese exchange inventories are covered separately in the LME Positioning Intelligence series and are not reproduced here.

The copper inventory figure is SMM's survey of major Chinese regions, reported as approaching 60,000 tonnes with a weekly change of less than 10,000 tonnes; the year-earlier comparison of roughly 200,000 tonnes is SMM's own, made within the same assessment. It is a different population from the national social-inventory series used in the previous edition, and the two are not bridged here. The COMEX figure is an exchange inventory as reported by SMM and is not comparable with Chinese survey inventories; it appears as supporting evidence alongside trade and import-economics data rather than as a counterpart to the Chinese series.

The front-month import margin and the previous edition's arbitrage estimate use different conventions. Secondary copper rod figures cover 30 October to 5 November; SMM's summary labels the cathode-rod spread and gross profit month on month while its body labels the same figures week on week, and the week-on-week basis is used here.

Chilean export figures are customs data as reported by SMM, and the totals shown are national exports from which the China-bound tonnages are a stated subset. Codelco's figures are preliminary company disclosures made at a shareholders' meeting on 5 November with audits in progress; the inventory overstatement, financial impact and auditor names appear in SMM's account rather than in wire coverage of the meeting.

Zinc premiums are quoted against the 2612 contract for Shanghai and Ningbo and against the market for Guangdong, and the Guangdong basis is not bridged to the previous edition's December-contract comparison. Lead social inventory covers five Chinese regions and is not comparable with SHFE registered warrants. Tin's social inventory is a weekly series ended 30 October while its SHFE warrant and price observations are dated 5 November. Nickel sulphate observations are qualitative and sentiment-based for this period.

All figures are quoted in the original units and currencies reported by SMM. Forecast production, realised production, survey inventories and price assessments are treated as distinct measures.

Sources

Shanghai Metals Market — Copper morning meeting summary, inventories and spot premiums, 6 November 2026

Shanghai Metals Market — Imported copper premiums and ex-China cargo flows, 6 November 2026

Shanghai Metals Market — Secondary copper rod weekly review and operating rates, 6 November 2026

Shanghai Metals Market — Codelco production overstatement and 2026 guidance cut, 6 November 2026

Reuters — Codelco lowers 2026 guidance, confirms 42,100 tons output error, 5 November 2026

Shanghai Metals Market — Codelco halts Andina mine after tailings spill, 6 November 2026

Shanghai Metals Market — Chile customs copper and concentrate exports, October 2026

Shanghai Metals Market — China 6063 aluminium billet inventory, 6 November 2026

Shanghai Metals Market — Shanghai zinc spot weekly review, 6 November 2026

Shanghai Metals Market — Ningbo zinc spot weekly review, 6 November 2026

Shanghai Metals Market — Guangdong zinc spot weekly review, 6 November 2026

Shanghai Metals Market — Zinc morning comment and SHFE futures, 6 November 2026

Shanghai Metals Market — Lead morning meeting summary and social inventory, 6 November 2026

Shanghai Metals Market — Nickel sulphate daily review, 6 November 2026

Shanghai Metals Market — Tin morning meeting minutes, inventories and supply, 6 November 2026

Previous edition: Bloodstone Research — China Metals Intelligence: Copper Import Premiums Hit Records as Arbitrage Loss Widens, 30 October 2026