Futures: Overnight, LME lead opened at $1,987/mt and fluctuated downward to a low of $1,972.5/mt during the Asian session. Driven by concerns over ore supply disruptions due to energy shortages in Peru, LME lead rallied firmly during the European session, touching a high of $1,998/mt near the close and ultimately settling at $1,997.5/mt, up 0.45%. Overnight, the most-traded SHFE lead 2606 contract opened at 16,595 yuan/mt, briefly touched a high of 16,605 yuan/mt at the start, then fluctuated downward to a low of 16,520 yuan/mt before moving sideways near the close, ultimately settling at 16,525 yuan/mt, down 0.33%, marking a fifth consecutive decline. On the macro front: A US appeals court stayed an unfavorable ruling on Trump's 10% global tariffs. India raised the basic customs duty on gold and silver imports from 5% to 10%. Indian banks proactively paid customs duties to resume gold and silver imports, completing customs clearance of 9 mt of gold and 34 mt of silver in May. Russia cut its 2026 crude oil production forecast by 14.2 million mt to 511 million mt, and its export forecast by 4.5 million mt to 237.2 million mt. The US overall CPI annual rate for April was 3.8%, exceeding the expected 3.7% and hitting the highest level since May 2023, with the energy index contributing over 40% of the overall increase. : As the SHFE lead price center shifted further downward, suppliers sold along with the market, with some lowering discounts for shipments. However, affected by the crackdown on "invoice-based tax arbitrage," some trading companies had their invoicing quotas reduced, restricting lead market trading. Primary lead from smelters in the form of cargoes self-picked up from production site was increasingly directed toward downstream enterprises. Additionally, as secondary lead losses widened, smelters showed strong hold back from selling sentiment, with notably fewer spot order quotations. Mainstream production areas quoted secondary refined lead at premiums of +0~+50 yuan/mt over SMM #1 lead on an ex-factory basis. Downstream enterprises maintained just-in-time procurement, with inquiry enthusiasm rising compared to the previous day. However, given the weak lead price trend, apart from some downstream enterprises that purchased as needed, most preferred to wait and see. Inventory: On May 12, LME lead inventory decreased by 375 mt to 265,550 mt. As of May 11, SMM five-region lead ingot social inventory increased by approximately 2,200 mt WoW. Lead price forecast for today: The SHFE lead 2605 contract will enter delivery this week. Suppliers continued to transfer lead ingots to delivery warehouses, and lead ingot social inventory maintained its upward trend, surpassing the 70,000 mt mark again for the first time in nearly two months. Recently, the lead-acid battery market remained in off-season mode, and primary lead supply was stable to rising. In particular, following the sharp rally in SHFE lead last week, downstream enterprises were reluctant to purchase at high prices, and the spread between futures and spot prices widened to above 200 yuan/mt. Suppliers' willingness to ship to delivery warehouse increased. Lead ingot social inventory is expected to continue rising before delivery is completed, with notable resistance for lead prices. Data Source Statement: All data other than publicly available information is SMM processed data based on publicly available information, market communication, and SMM's internal database model, for reference only and does not constitute decision-making advice.

Driven by recovering risk appetite and China's peak demand season, copper prices both in China and abroad bottomed out since late March. However, as SHFE copper returned to the 100,000 level, the tug-of-war between longs and shorts increased, and futures prices shifted to range-bound consolidation. After the Labour Day holiday, copper prices quickly resumed their upward momentum. Today, prices opened higher with a gap and continued to rise, with SHFE copper just one step away from the record high set at the end of January, while LME copper hit a new closing high. What is fueling such strong confidence behind this rally? Deepening Ore-Side Vulnerability Intensifies Supply Disruption Concerns Since the suspension of First Quantum's Cobre Panama copper mine at the end of 2023, spot TC for copper concentrates in China has been caught in an endless downward spiral. Falling from around $80/dmt at the end of 2023, it largely dropped to single-digit levels and moved sideways in 2024. Entering 2025, it further plunged into negative territory, mainly due to successive production disruptions at world-class copper mines including Ivanhoe Mines' Kakula, Codelco's El Teniente, and Freeport's Grasberg mine in Indonesia. Entering 2026, global major copper ore supply growth remained limited, and the ore tightness showed no improvement. The latest data showed that spot TC for copper concentrates in China had fallen below -$90/dmt. With long-term contract TC at zero and spot TC declines accelerating, domestic smelters' production profits mainly relied on surging sulphuric acid prices and firm by-product prices of gold, silver, and other metals to compensate. It was reported that current sulphuric acid revenue could already cover smelters' procurement costs for copper concentrates and part of the processing costs, enabling domestic smelters to maintain relatively high operating rates, and the ore tightness had not yet notably transmitted to the smelting side. It is worth noting that sulphuric acid is not only a by-product of pyrometallurgy but also a core production material for SX-EW copper. For every 1 mt of copper produced, 5–6 mt of sulphuric acid is consumed. Sulphuric acid costs account for 40%–50% of total SX-EW copper production costs, and SX-EW copper production accounts for approximately 20% of global mine copper production. Since the beginning of this year, sulphuric acid prices surged sharply due to multiple factors, and ex-China sulphuric acid supply was periodically disrupted, raising concerns that copper supply in some countries could be affected. Focusing on the reasons behind the sulphuric acid price surge: on one hand, since the escalation of the Middle East conflict on February 28, shipping through the Strait of Hormuz has been broadly restricted and has recently faced a dual blockade by Iran and the US. Sulphur exports from the Middle East have been impacted, with the DRC and Zambia being the most concentrated SX-EW copper producing regions that are highly dependent on sulphur imports from the Middle East. As sulphur supply has been constrained, sulphuric acid prices have naturally risen in tandem, not only raising local SX-EW copper production costs but also potentially triggering further production cuts if the Strait of Hormuz blockade continues and sulphur disruption risks escalate. On the other hand, to prioritise domestic spring ploughing phosphate fertiliser production and support new energy industry expansion, China has imposed a phased ban on sulphuric acid exports according to industry sources. Chile has a relatively high dependence on Chinese sulphuric acid, with SX-EW copper accounting for around 20% of its output, and the market is also concerned that Chile's SX-EW copper production may be affected. In addition, against the backdrop of an already fragile copper ore supply, frequent news shocks from outside China recently have undoubtedly intensified market concerns. Last week, market rumours suggested that the full restart of Indonesia's Grasberg copper-gold mine, which declared force majeure in September last year, had been delayed by one year, driving SHFE copper sharply higher in the afternoon of 8 May. However, according to the latest update from Freeport-McMoRan, the company still expects Indonesia's Grasberg copper-gold mine to fully resume production by the end of 2027, reaffirming the plan outlined last month and refuting reports that production resumptions could be delayed to 2028. Furthermore, yesterday Peru declared an emergency energy decree due to a natural gas pipeline explosion. Peru's copper production reached 2.63 million mt in metal content last year, ranking third globally. Copper mining and smelting are relatively sensitive to power stability, and the market is concerned that Peru's energy strain may disrupt local copper supply. Overall, China's copper cathode production remains relatively stable, but some major global miners lowered their full-year production guidance in Q1, the ore tightness persists, sulphuric acid supply — a core raw material for ex-China SX-EW copper — is constrained, and there are multiple supply disruption themes on the copper supply side, which can easily boost copper prices once the macro front stabilises. Global Copper Visible Inventory Divergence: China Destocking Provides Support Last year, driven by the US government's threat to impose additional tariffs on imported copper, global copper continued to flow into the US, causing COMEX copper inventories to accumulate continuously while copper inventories in non-US regions remained low, providing sustained support for copper prices. In February this year, the US Supreme Court struck down most of the tariff measures introduced by the Trump administration in 2025. The Trump administration subsequently turned to Section 122 of the Trade Act of 1974 to push new global tariff policies. On 7 May, the US Court of International Trade issued a ruling stating that the legal basis for imposing a 10% global import tariff was invalid. The tug-of-war between US courts and the Trump administration over tariffs has continued recently, but the market has certain expectations that the US may subsequently impose additional tariffs on imported copper. Under such expectations, the price spread between COMEX copper and LME copper has shown a slight strengthening trend recently, meaning copper in LME warehouses still has the potential to flow to the US. Specifically, COMEX copper inventories have continued to rebound since mid-April, rising from around 590,000 mt to the latest 620,000 mt, again hitting a multi-year high. Correspondingly, LME copper inventories pulled back from around 400,000 mt in mid-April, declining to 397,700 mt on 6 May. They have rebounded with fluctuations recently, but overall inventories have not exceeded the over-12-year high set in mid-April. SHFE copper inventories fell for the eighth consecutive week, currently dropping to 181,300 mt, the lowest since the beginning of the year. Data source: Webstock Inc. Overall, on the macro front, there are currently disagreements in US-Iran negotiations, but both sides continue the ceasefire with no recent signs of escalation in conflict. Energy prices pulled back from late April levels, inflation concerns eased somewhat, the US dollar index was in the doldrums, and combined with the AI boom lifting global stock markets, market risk appetite was moderate, providing a fertile ground for copper prices to strengthen. Focusing on copper's own fundamentals, inventories outside China remained elevated, but significant prior destocking of China inventories provided support. The ore tightness was difficult to reverse, and supply-side narratives were abundant, meaning copper prices may still hold up well. However, it is worth noting that the Middle East situation remains the biggest macro variable, and the policy path following the Fed Chairman's power transition also deserves close attention. (Webstock Composite)

[SMM Analysis: Stripping Away Macro Noise: Analysis of the Substantive Impact of Peru's Emergency Decree on Tin Supply]

According to SMM, a zinc smelter in central China plans to conduct maintenance for 15 days in mid-June, which is expected to affect around 5,000 mt. SMM will continue to track the actual maintenance situation.

[SMM Aluminum Express News] Alcoa will invest US$65 million to upgrade its Mosjøen smelter in Norway, adding a new casting line, melting furnaces, and casthouse upgrades. The project will increase foundry capacity by up to 75,000 tpy and introduce post-consumer recycled aluminum into production for the first time, responding to rising recycled-content requirements from automotive and packaging customers in Europe. The upgrade will be completed in phases, with commissioning and ramp-up scheduled throughout 2028.

Minsur, the world's second-largest refined tin producer, reported that its Pisco smelter in Peru produced 8,314 mt of refined tin in Q1 2026, down 2.9% YoY. The company attributed the slight decline in tin production to lower feed grades and reduced recovery rates at the smelter. Meanwhile, rising tin prices drove a 16.9% YoY increase in net revenue, effectively offsetting the impact of the production decline. Tin-in-concentrates production from the San Rafael underground mine fell 2.0% YoY to 6,096 mt due to lower recovery rates, but this was partially offset by a 3.3% increase in production from the B2 tailings dam. Total tin-in-concentrates production was basically flat YoY at 7,993 mt. The mill feed grade at the San Rafael mine remained stable at 2.40% Sn.

Indonesia’s Minister of Energy and Mineral Resources, Bahlil Lahadalia, announced on Monday (May 11, 2026) that the government is suspending the planned implementation of export levies (bea keluar) on downstream nickel products to develop a more balanced "win-win" formula for both the state and private sectors. While the levy is intended to incentivize smelters to move beyond Nickel Pig Iron (NPI) production, which has currently achieved only 40% of its downstream potential, the government is opting for a "wise" approach following industry feedback.

[SMM Analysis] Reassessing the Logic Behind Sulfur's "Surge" Driving Nickel Prices Higher

An SMM survey showed that in April, refined lead supply from secondary lead enterprises edged up by 18,800 mt MoM, mainly driven by production resumptions at previously idled enterprises and output increases from raw material restocking. However, entering May, the supply side quickly shifted to contraction, with the combined MoM impact on refined lead reaching -41,800 mt, far exceeding the prior increase.

[Lead Market Dynamics] According to feedback from lead smelters in Southeast Asia, the tight raw material supply situation has not improved recently, leading to persistently tight spot lead ingot circulation in the region, with the short-term tight pattern unlikely to change.