The most significant change in the imported copper concentrate market in the first half of 2026 emerged during the mid-year term-contract negotiations. According to SMM, Antofagasta, a leading Chilean mining company, and several major Chinese smelters finalized the pricing mechanism for their mid-year copper concentrate term contracts on July 1. Rather than continuing with the traditional fixed-TC approach, the parties adopted an index-linked pricing mechanism.Chinese smelters had already agreed with Antofagasta on historically low term-contract treatment and refining charges of US$0 per dry metric tonne and US¢0 per pound in 2025. The further introduction of index-based pricing in the 2026 mid-year negotiations indicates that the pricing framework for imported copper concentrate term contracts is undergoing a structural transformation, against a backdrop of persistently and deeply negative spot TCs and steadily strengthening pricing power on the mine side. At a more fundamental level, the change in term-contract pricing reflects the persistent mismatch between mine-supply growth and the expansion of smelting demand. SMM estimates that global sulfide copper concentrate supply will increase by approximately 250,000 tonnes of contained copper in 2026 compared with 2025, representing growth of around 1.3%. By contrast, newly commissioned and expanded primary smelting capacity in China is expected to generate approximately 800,000 tonnes of additional concentrate demand on a contained-copper basis.The increase in mine supply is therefore significantly smaller than the expansion in smelter demand. Meanwhile, factors including the slower-than-expected restart of Grasberg, the continued absence of a full restart at Cobre Panamá, declining ore grades at mature Chilean mines, and the lingering effects of seismic activity at Kamoa-Kakula kept the imported copper concentrate spot market extremely tight throughout the first half of the year.SMM estimates that the global sulfide copper concentrate market will record a supply deficit of approximately 610,000 tonnes of contained copper in 2026. The shortage may not begin to ease until around 2029, when production from a number of new mine projects is expected to come on stream. At the same time, elevated sulfur and sulfuric acid prices have provided an important floor under copper smelter profitability and increased smelters’ ability to absorb deeply negative TCs, at least temporarily. On July 3, the SMM China Copper Smelter Sulfuric Acid Index stood at RMB 1,789 per tonne, up RMB 886 per tonne from RMB 903 per tonne on January 9. The rise in sulfuric acid prices since the beginning of 2026 has become an important earnings driver for Chinese copper smelters and has helped sustain high refined-copper output. Under the combined influence of the mine-smelter supply-demand mismatch and strong by-product margins, spot TCs for imported copper concentrate continued to fall during the first half of 2026. The monthly SMM Imported Copper Concentrate Index averaged negative US$121.44 per dry metric tonne in June, down US$18.31 per dry metric tonne from negative US$103.13 per dry metric tonne in May. On a weekly basis, the SMM Imported Copper Concentrate Index was reported at negative US$113.83 per dry metric tonne in early June and subsequently declined continuously to negative US$124.45 per dry metric tonne on June 26. On July 3, the weekly index fell further to negative US$128.25 per dry metric tonne, down US$3.80 per dry metric tonne from the previous assessment. The successive declines through the negative US$100 and negative US$120 per dry metric tonne thresholds demonstrate that the shortage of tradable spot concentrate continued to intensify. I. Supply: New Supply Falls Short of Expectations as Mine-Side Disruptions Continue to Constrain Tradable Availability Although several global copper projects were scheduled to deliver incremental concentrate supply in the first half of 2026, actual production growth came on stream significantly more slowly than the market had previously expected.The central issue on the supply side was not any single mine incident. Rather, disruptions at major mines, declining grades at mature operations, slower-than-expected ramp-ups at new projects, and changes in trade flows collectively reduced the volume of concentrate available for purchase in China’s spot market. Regarding Cobre Panamá, the Panamanian government approved First Quantum Minerals in April to remove, process and export stockpiled ore that had been mined before the operation was suspended. According to SMM, however, the current progress at Cobre Panamá mainly concerns the treatment of existing stockpiles and does not represent a full restart of mining operations.The mine remains subject to complex disputes involving mining rights, taxation, environmental requirements, local communities and political considerations. Consequently, even if a portion of the stockpiled material enters the market during the second half of 2026, its contribution to improving the global copper concentrate balance is expected to remain limited.Related analysis is available in the SMM article, “Cobre Panamá Copper Mine: From a World-Class Mine to a Shutdown Impasse—SGS Audit Signals the Possibility of a Restart”: https://hq.smm.cn/copper/content/103965399 Grasberg remains one of the largest variables affecting global copper concentrate supply in 2026. At the beginning of the year, Freeport-McMoRan forecast approximately 3.4 billion pounds of copper sales for 2026, based on the assumption that the Grasberg Block Cave would restart and ramp up in stages from the second quarter.Because the restart underperformed expectations, Freeport subsequently lowered its 2026 copper sales guidance to approximately 3.1 billion pounds in its first-quarter report. For the imported copper concentrate market, the significance of Grasberg extends beyond the mine’s headline production figures. Other important factors include the proportion of concentrate absorbed by Indonesia’s domestic smelting sector, PTFI’s smelter inventory arrangements, and the actual quantity of material available for shipment to China’s spot market. Should the recovery at Grasberg continue to fall short of expectations in the second half of the year, the shortage of clean spot concentrate is unlikely to ease materially. In Africa, the effects of seismic activity at Kamoa-Kakula remain ongoing. Ivanhoe Mines previously issued 2026 copper production guidance of 380,000–420,000 tonnes for Kamoa-Kakula, followed by 500,000–540,000 tonnes in 2027. The company also stated that dewatering and rehabilitation work at the Kakula mine was continuing.Compared with the previous medium- to long-term target of annualized production exceeding 550,000 tonnes, however, the pace of production growth in 2026 has slowed significantly. Kamoa-Kakula had been expected to be one of the most important sources of global copper concentrate supply growth in recent years. The slowdown in its production ramp-up has therefore further reduced the potential for mine-supply growth to support a recovery in TCs. In Chile, declining grades at mature mines, transitions toward deeper underground mining, and operational accidents continued to constrain supply flexibility. The effects of the 2025 cave-in at El Teniente extended into 2026. Codelco previously stated that the accident had resulted in the loss of tens of thousands of tonnes of copper production in 2025 and would continue to affect the subsequent recovery schedule.The incident illustrates the structural challenges facing Chile’s large and mature mining operations in areas such as deep-level mining, ground-pressure management, and the timely delivery of replacement and mine-life-extension projects. In addition to El Teniente, several other major Chilean mines continued to face declining grades, throughput fluctuations and maintenance-related disruptions, limiting the recovery potential of Chilean clean-concentrate supply. Peru’s supply performance was comparatively more resilient than Chile’s, although incremental production remained highly concentrated among a limited number of operations. Major mines such as Antamina and Las Bambas benefited during certain periods from higher ore grades, improved recoveries and operational normalization, supporting Peru’s overall copper production.From the perspective of the imported spot market, however, Peruvian supply remains exposed to community disruptions, transportation-corridor interruptions, mine-grade transitions and unstable shipment schedules. Moreover, because much of the incremental production is concentrated among a small number of large mines, it is insufficient to fully offset supply losses associated with Grasberg, Cobre Panamá and mature Chilean mines. In Mongolia, the ramp-up of the Oyu Tolgoi underground mine represents one of the relatively few clearly identifiable sources of incremental global mine supply in 2026. Rio Tinto disclosed that its copper production increased by 11% year on year in 2025, primarily due to the strong ramp-up at Oyu Tolgoi.Nevertheless, while additional output from Oyu Tolgoi is contributing to global supply growth, the incremental volume from this single project remains insufficient to reverse the overall tightness in the copper concentrate spot market, given the larger increase in Chinese smelting demand and recurring disruptions at other major mines. According to SMM estimates, disruptions at major global copper mines and incremental production falling short of expectations will have a combined impact of approximately 480,000 tonnes of contained copper in 2026. Uncertainty surrounding the realization of mine supply therefore remains the primary factor driving imported copper concentrate TCs lower. From a trade-flow perspective, China’s copper concentrate imports from Chile and Peru both declined to varying degrees during the first half of 2026. According to customs data, China imported 3.7640 million tonnes of copper concentrate from Chile during January–May 2026, down 228,000 tonnes, or 5.71%, year on year.Imports from Peru totaled 3.1002 million tonnes during the same period, representing a year-on-year decrease of 147,900 tonnes, or 4.55%. Lower arrivals from the principal South American origins intensified competition among Chinese smelters for alternative feedstocks, blended concentrates, land-transported concentrates and off-specification materials. China’s total imports of copper ores and concentrates amounted to 12.2758 million tonnes during January–May 2026, down 1.01% year on year. The modest decline partly reflected the relatively high comparison base in the corresponding period of 2025. Other contributing factors included strong consumption of copper anode and blister copper in the first quarter, temporary adjustments to some smelters’ raw-material mix, and changes in the arrival schedule of term-contract cargoes.The decline in headline import volumes should therefore not be interpreted simply as evidence of materially weaker concentrate demand from domestic smelters, nor does it have a direct one-to-one relationship with spot TC movements.For the spot market, the more important variables are the marginal volume available outside term contracts, the share of mainstream clean concentrate in the available supply pool, and smelters’ periodic inventory-replenishment requirements. During the first half of 2026, new smelting capacity, continued demand for off-contract inventory replenishment, and frequent mine disruptions kept the spot market tight even though the decline in apparent import volumes was limited. Spot TCs consequently remained under sustained downward pressure. II. Demand: China’s Smelting Expansion Continues While Production Cuts Remain Fragmented On the demand side, Chinese copper smelters remain the principal source of incremental global copper concentrate consumption. Although deeply negative TCs continued to compress core smelting margins during the first half of 2026, and some smelters temporarily reduced operating rates because of maintenance, feedstock constraints and processing-margin losses, the continued commissioning of new and expanded primary smelting capacity kept concentrate demand relatively inelastic. According to SMM statistics, new and expanded primary smelting capacity in China in 2026 is expected to correspond to approximately 800,000 tonnes of contained copper.Newly commissioned capacity typically requires substantial initial feedstock inventories. Even when spot TCs are deeply negative, new production lines must continue purchasing concentrate to ensure operational stability, complete equipment commissioning and ramp-up, and maintain market share. As a result, the practical effectiveness of production cuts by smelters as a mechanism for restoring TCs has been significantly weakened. The Chinese smelting sector in the first half of 2026 was characterized by the coexistence of maintenance-related disruptions and demand generated by capacity expansion. On the one hand, several smelters scheduled maintenance during the second quarter, temporarily reducing concentrate consumption. On the other hand, ramp-ups at newly commissioned facilities, term-contract obligations, low inventory safety margins and strong sulfuric acid earnings prevented smelters from implementing coordinated production cuts.Particularly in an environment where imported concentrate inventories remained structurally tight, some smelters continued to make essential market inquiries to secure production continuity, even when they reduced the frequency of their spot purchases. III. Smelting Economics: Strong Sulfuric Acid Margins Increase Tolerance for Negative TCs, but Volatility Risks Are Rising The earnings structure of copper smelters changed materially during the first half of 2026. Traditionally, smelter profitability has primarily been derived from TC/RC income and credits from gold, silver and other by-products. With spot TCs for imported copper concentrate moving deeply into negative territory, however, processing-fee income fell sharply and sulfuric acid margins became significantly more important. Overall copper smelting margins were weaker in the early part of the first half and improved later in the period. Declining TCs imposed substantial pressure on profitability, but elevated sulfuric acid prices, strong precious-metal prices and improved returns from certain other by-products provided a partial offset.Approximately 3.5–4.0 tonnes of sulfuric acid are produced as a by-product for every tonne of refined copper output. When sulfuric acid prices are high, acid earnings can substantially offset the impact of negative TCs and rising smelting costs. Nevertheless, according to SMM estimates, spot-based smelting margins at Chinese copper smelters have now approached break-even, and smelters have become noticeably less willing to purchase spot cargoes at increasingly unfavorable TCs. The rise in sulfuric acid prices has mainly been driven by two factors. First, geopolitical disruptions in the Middle East, tight sulfur supply and higher import costs raised the cost base of sulfuric acid production. Second, demand from phosphate fertilizers, chemicals, hydrometallurgical operations and battery-material producers provided broad-based downstream support.The sharp rise in sulfuric acid prices has reshaped the economics of copper smelting in China, with acid earnings accounting for a substantially larger proportion of smelters’ non-TC/RC income. This was also an important reason why Chinese smelters did not implement large-scale voluntary production cuts during the first half of 2026 despite the continued decline in TCs. The support provided by sulfuric acid margins is not without risk, however. Should geopolitical disruptions ease in the second half of the year, sulfur supply recover, or restrictions on Chinese sulfuric acid exports result in more material being redirected to the domestic market, sulfuric acid prices could retreat from their elevated levels.If acid margins narrow while copper concentrate TCs remain deeply negative, pressure on smelter profitability will become more visible again. Some higher-cost smelters may respond by extending maintenance periods, reducing utilization rates or cutting spot concentrate purchases. Sulfuric acid prices will therefore be one of the key variables determining whether TCs can stabilize during the second half of the year. IV. Spot Market: Frequent Mine Tenders and the Emergence of Index-Minus Pricing Trading activity in the imported copper concentrate spot market was uneven during the first half of 2026, but mine tenders and trader offers remained important channels for price discovery. As spot TCs continued to decline, outright fixed-price transactions repeatedly established new market lows, while index-minus pricing gradually became the dominant quotation format. Since the second quarter, trader offers have increasingly been expressed as an average of the SMM and Fastmarkets indices minus an additional differential. This pricing method indicates that, in an environment of continuously declining spot TCs, concentrate sellers increasingly prefer index-linked formulas that preserve their exposure to further downward movements in TCs. Smelters’ purchasing behavior remained conflicted. On the one hand, deeply negative TCs continued to compress smelting margins, limiting smelters’ willingness to accept expensive spot concentrate carrying extremely unfavorable processing terms. Some companies therefore reduced the frequency of their active inquiries.On the other hand, ramp-ups at new smelting facilities, insufficient inventory safety margins and uncertainty surrounding term-contract arrivals meant that some smelters still needed to replenish stocks to meet essential production requirements. Consequently, the market did not experience a collective withdrawal of buyers sufficient to drive a meaningful recovery in TCs. Instead, continuously lower mine-tender settlements pushed the spot index further into deeply negative territory. V. H2 Outlook: Limited Marginal Supply Recovery and Persistently Deeply Negative TCs Looking ahead to the second half of 2026, the imported copper concentrate spot market will continue to be driven by the interaction between the actual realization of mine-supply recovery and the resilience of Chinese smelting demand.On the supply side, the treatment of Cobre Panamá stockpiles, progress in the Grasberg restart, incremental production from Oyu Tolgoi, and shipment stability at major Peruvian mines may provide some marginal improvement. Based on current developments, however, Cobre Panamá has not achieved a full restart, the Grasberg recovery schedule has already been revised downward, production growth at Kamoa-Kakula has slowed, and mature Chilean mines remain exposed to declining grades and safety-related disruptions. The conditions required for a substantial easing of the global copper concentrate market are therefore not yet in place. On the demand side, new and expanded Chinese primary smelting capacity will continue to support structurally strong concentrate consumption. Although some smelters may temporarily reduce production because of losses, maintenance or feedstock constraints, the ramp-up of newly commissioned projects, the fulfillment of term contracts, sulfuric acid margins and regional refined-copper price differentials will continue to weaken the impact of production cuts on TCs.Should the effect of maintenance outages gradually diminish during the third quarter while newly commissioned capacity continues to ramp up, China’s demand for imported copper concentrate is likely to remain elevated on a sequential basis. Sulfuric acid prices will remain a key variable for smelting profitability in the second half of the year. Should sulfuric acid prices remain elevated or rise further, smelters will continue to demonstrate a relatively strong capacity to absorb negative TCs, limiting the potential for a recovery in spot TCs. Conversely, should sulfuric acid prices retreat from their highs, pressure on smelter profitability will increase again. Some smelters may respond by extending maintenance, cutting operating rates or reducing spot purchases, potentially allowing TCs to stabilize or recover modestly for a period. In the spot market, mine-tender results will remain an important leading indicator for TC movements in the second half of the year. As term-contract pricing becomes increasingly index-linked and more spot transactions adopt index-minus formulas, the SMM Imported Copper Concentrate Index is expected to play an even stronger role as the principal pricing anchor for market transactions. Should mine-tender settlements remain deeply negative, spot TCs may fall further. Conversely, if incremental volumes from the Grasberg recovery, Cobre Panamá stockpile processing and Oyu Tolgoi materialize at the same time, while maintenance activity among smelters increases, TCs may stage a temporary recovery. Overall, some marginal improvement in imported copper concentrate supply is possible during the second half of 2026. Nevertheless, given the continued commissioning of new Chinese smelting capacity, the shortage of tradable concentrate, and the support that strong sulfuric acid margins provide to smelter operating rates, a sustained and substantial recovery in spot TCs appears unlikely. Spot TCs for imported copper concentrate are therefore expected to remain volatile within deeply negative territory during the second half of the year. Any temporary recovery will depend largely on the actual realization of mine restarts, the extent to which smelters implement maintenance and production cuts, and changes in sulfuric acid profitability.

"The heatwave has significantly driven sales growth, especially the PortaSplit air conditioner, which has sold out in some sales channels."

When asked, "What were the sales volume and pricing of copper foil produced by your company in April 2026?" North Copper responded on May 19 via the investor interaction platform: The company's copper foil sales are performing well with balanced production and sales; the product is priced and sold on a market-based basis according to market supply and demand. North Copper also responded on May 19: The company's share price fluctuations are influenced by a combination of factors including the macro environment, market sentiment, capital flows, and the company's own performance. The recent share price fluctuations have been largely in line with the trend of publicly listed firms in the copper sector. The company has always focused on enhancing intrinsic value as the core of its market capitalization management, and is committed to the long-term alignment of corporate value and market performance through focusing on core business growth, optimizing governance structure, strengthening information disclosure, and implementing shareholder return plans. The content of the earnings briefing announced by North Copper on May 8 showed: 1 What is the current construction progress of the new 10kt rolled copper foil production line, and in which month of 2026 is it expected to be completed? North Copper responded: Some production lines of the company's 50,000 mt/year high performance rolled copper strip and foil and 2 million m² CCL project have reached the intended usable condition. The main products include high performance copper and copper alloy strip and rolled copper foil, of which copper alloy strip capacity is 25,000 mt/year and rolled copper foil capacity is 5,000 mt/year. 2 What caused the negative operating cash flow, and what is the impact on the company going forward? North Copper responded: The negative net cash flow from operating activities in Q1 was mainly due to two reasons: first, rising non-ferrous metal prices led to higher overall value of copper raw materials, increasing capital occupation; second, under the impact of geopolitical factors, international shipping rerouting and tight domestic railway dispatching caused copper raw material arrivals at the plant to be delayed versus plan, extending the capital turnover period. The company's current cash flow level can effectively support daily operations and debt repayment. Going forward, the company will take targeted measures to improve the situation. 3 Questions regarding the progress of Hujiaoyu mine asset injection. Specifically: Has the preliminary preparation work for the asset injection (such as auditing, valuation, and plan evaluation) been initiated? Does the company plan to complete this asset injection within 2026? Are there any material obstacles or uncertainties in the process that need to be disclosed to investors? Beyond strictly fulfilling the commitment to inject within 24 months, does the company's management have a clear goal and timetable to "strive for early completion"? What specific stage has the related work progressed to? North Copper responded: Hujiaoyu Mining Company, a subsidiary of the company's controlling shareholder Zhongtiaoshan Group, obtained the mining permit for newly added reserves on March 27, 2026. Preliminary work for obtaining the mine safety production permit is currently being actively advanced, and the conditions for injection into the publicly listed firm are not yet met. The company will initiate the asset injection process in a timely manner after all the above mining permits are obtained, fulfilling the relevant commitments. 4 After the completion of the 50,000 mt rolled copper foil and strip project, are there any further plans for new copper foil capacity construction and expansion? North Copper responded: Some production lines of the company's 50,000 mt/year high performance rolled copper strip and foil and 2 million m² CCL project have not yet been completed, and capacity has not been fully released. There are currently no new copper foil capacity expansion plans. 5 How does the company's management plan to manage market capitalization? North Copper responded: In accordance with the requirements of Regulatory Guidelines for Listed Companies No. 10 — Market Capitalization Management, the company will make comprehensive utilization of lawful and compliant methods, promote positive interaction between value and market capitalization through improving operational quality, strengthening information disclosure, and deepening investor communication, continuously improve and strengthen market capitalization management, and carry out scientific, effective, and compliant market capitalization management practices. 6 Given the strong Q1 2026 results, the share price has underperformed peers with weaker results. Does the company have any undisclosed adverse events? North Copper responded: In addition to operating performance, the company's share price is also influenced by various factors including the international situation, policy environment, financial market liquidity, capital market atmosphere, and investor psychological expectations. The company strictly fulfills its information disclosure obligations in accordance with relevant laws and regulations, and there are no material matters that should have been disclosed but were not. 7 What new progress will the company make in smart mines and digital factories this year? North Copper responded: The company will continue to advance the construction of smart mines and digital factories, deepen and expand new scenarios for digital-intelligent integration applications, and accelerate the implementation of the Tongkuangyu mine smart mine project. Within the year, the company plans to complete the installation of system equipment for the data center, integrated management and control hall, and other facilities. The digital-intelligent building is expected to be completed and put into operation. The 5G smart communication hub, industrial-grade ring network, and LHD operation positioning and metering projects are expected to achieve phased results, effectively enhancing the digital-intelligent level and operational efficiency of mining operations. 8 What are the main directions of R&D expenditure? North Copper responded: The company's R&D expenditure is focused on six core areas: resource reserve expansion and production increase, efficient mining and beneficiation technologies, smelting technology innovation, high-end copper-based materials, comprehensive utilization of resources, and intelligent mining. North Copper's Q1 2026 report released on April 29 showed: In Q1, the company achieved revenue of 10.044 billion yuan, up 46.89% YoY; net profit attributable to the parent company's shareholders was 615 million yuan, up 65.74% YoY. Regarding the reason for the revenue increase, North Copper stated in its Q1 report: It was mainly due to increased product sales volume and price increases. In addition, North Copper's 2025 annual report showed: The company achieved revenue of 27.916 billion yuan in 2025, up 15.80% YoY; net profit attributable to the parent company's shareholders was 791 million yuan, up 29.01% YoY. Major product production in 2025: copper cathode 300,300 mt, sulphuric acid 766,000 mt, gold ingots 6.4 mt, and silver ingots 68.5 mt. North Copper stated in its 2025 annual report: The company is primarily engaged in copper mining, ore beneficiation, smelting, and rolling processing. It currently has captive mines with annual ore processing of 9 million mt and self-produced copper metal content of 43,000 mt, copper smelting capacity of 320,000 mt, gold ingots 10.8 mt, silver ingots 170 mt, and sulphuric acid 1.22 million mt. It also recovers valuable metals including platinum, palladium, selenium, and bismuth through comprehensive utilization. Copper deep-processing products include high performance copper and copper alloy strip and rolled copper foil, of which copper alloy strip capacity is 25,000 mt/year and rolled copper foil capacity is 5,000 mt/year. The company has established an integrated industry chain from mining, ore beneficiation, smelting to rolling processing. The company's "Zhongtiaoshan" brand Grade-A copper is registered on the Shanghai Futures Exchange and the Shanghai International Energy Exchange, and the "Zhongtiaoshan" brand gold and silver ingots are registered on the Shanghai Futures Exchange. The company's mineral exploration status disclosed in North Copper's 2025 annual report showed: The company completed the detailed exploration project for deep replacement resources at the Tongkuangyu copper mine (below the 80m elevation), with the following main work completed: exploration tunnels 140.6 m, drilling chambers 12/2,823.6 m³, drilling 12 holes (including 3 hydrogeological holes), drilling volume 7,268.62 m, 1:2000 specialized hydrogeological and environmental geological survey 6 km², geophysical logging 2,065.61 m, and pumping tests on 3 holes; 8,091 sample analyses and tests, 46 sets of rock and ore tests, 99 bulk density samples, 20 copper phase analyses, 10 complete chemical analyses, and 12 complete water quality analyses. On February 20, 2025, the Shanxi Mining Association organized and completed the supervision and field acceptance of the detailed exploration project, issuing the supervision report and field acceptance report. In early March, the company completed the compilation of the Detailed Hydrogeological and Environmental Survey Report for the Deep Part of Tongkuangyu Mine. On March 17, the report was reviewed and approved by experts organized by the Shanxi Mining Association. In May, the company completed the compilation of the Detailed Exploration Report for Deep Replacement Resources at Tongkuangyu Copper Mine, Yuanqu County, Shanxi Province (hereinafter referred to as the Report). On May 23, the report was reviewed and approved by experts organized by the Shanxi Mining Association, and review opinions were issued. According to the Report, as of December 31, 2024, within the 80m to -325m elevation range of the Tongkuangyu mining area, the cumulative identified industrial ore body (No. 5) copper ore resources totaled 103.718 million mt, with an average grade of 0.84% and metal content of 869,600 mt. Associated gold metal content was 8,930 kg with an average grade of 0.09 g/t; associated molybdenum metal content was 3,727 mt with an average grade of 0.011%. Low-grade copper ore resources totaled 34.625 million mt, with an average grade of 0.25% and metal content of 88,200 mt. The explored resources reached a large scale, achieving significant exploration results and providing solid resource support for the company's industry chain layout. Regarding the company's copper ore resource reserves, North Copper disclosed in its annual report that as of the end of 2025, the Tongkuangyu mine retained copper ore resources of 4.664 million mt above the 80m elevation, with copper metal content of 1.2501 million mt. Meanwhile, below the 80m elevation at the bottom of the company's existing Tongkuangyu mine mining rights, the cumulative identified industrial ore body (No. 5) copper ore resources totaled 3.718 million mt, with an average grade of 0.84% and metal content of 869,600 mt. Regarding the 2026 production and operation plan, North Copper mentioned in its 2025 annual report: Major product production targets: copper cathode 300,000 mt, sulphuric acid 800,000 mt, gold ingots 6 mt, and silver ingots 60 mt, to maximize economic benefits. Regarding the outlook for copper, some institutions hold the following views: Tony Sage, CEO of Critical Metals, noted in a recent report that market participants remain bullish on the copper price outlook, driven by long-term demand from AI infrastructure, power grid modernization, and the global energy transition, coupled with supply constraints. He added that in the long run, the copper market may face a potential supply deficit, which will provide support for copper prices. (Jin10 Data) A CITIC Securities research report noted that as Freeport once again delayed the production resumptions schedule for its Indonesian project and comprehensively lowered its production guidance for 2026-2027, global major miners' 2026 production expectations have officially entered a decline, and the potential impact of subsequent extreme weather may further amplify supply disruptions. We expect that the solid supply-demand fundamentals demonstrated by the better-than-expected destocking in China, along with easing macro headwinds, will support copper prices to stabilize at $13,000/mt in 2Q26, while the gap between supply-demand expectations could drive copper prices to challenge previous highs. We are optimistic about the allocation opportunity in the copper sector where earnings elasticity and valuation elasticity resonate.

I. Market Status: Negative TCs Enter Triple Digits, Structural Tightening in Copper Concentrate Supply-Demand As global smelter capacity continues to climb, China, as the world's largest copper smelting country, faces a continuously declining self-sufficiency rate in copper concentrates and rising external dependency. Compounded by geopolitical crises, production cuts by ex-China miners, declining mine grades, and frequent production accidents, the copper industry has undergone a dramatic shift from "tight balance" to "structural deficit." Currently, the global copper concentrate market has fallen into a state of persistently tight supply. On May 15, the SMM Imported Copper Concentrate Index (weekly) reported -$102.84/dmt, breaking through the -$100/dmt threshold for the first time in history, setting a record negative depth. The payable indicator for 20%-grade domestic trade ore was 97.5%-98.5%, up 0.5 percentage points MoM. Supply-side factors driving TCs persistently lower continue to accumulate. 1) Full production resumptions at Freeport's Grasberg mine have fallen short of expectations. According to Freeport's Q1 earnings call, the company plans to achieve full production resumptions by the end of 2027; 2) The Peruvian government signed Emergency Decree No. 003-2026 on May 11, triggering widespread market concerns over the country's energy supply and copper mine output; 3) Geopolitical disruptions—the continued blockade of the Strait of Hormuz has driven sulfur prices persistently higher, pushing smelting acid prices to rise continuously. With smelting profits climbing, smelters' purchase willingness has increased, driving copper concentrate TCs persistently lower. Customs data showed that China's copper ore and concentrate imports in April 2026 were 2.352 million mt in physical content, down 19.57% YoY; cumulative imports from January to April were 9.915 million mt in physical content, down 0.8% compared to the same period last year. Since December 2020, China's copper concentrate cumulative imports had maintained positive YoY growth; this marks the first decline in over five years. II. Smelter Operating Rates Stay High Contrary to the intuition of "industry-wide losses" implied by deeply negative TCs, operating rates at China's copper smelters have not experienced a cliff-like decline. From a pure smelting perspective, operating willingness and actual profitability across different types of enterprises show significant divergence. Under the extreme environment of deeply negative TCs, the core reason China's copper smelters can maintain relatively resilient operations is that by-product revenues are becoming the key variable determining break-even. Meanwhile, China's copper cathode production declined MoM due to the maintenance peak. SMM data showed that China's copper cathode production in April fell 2.26% MoM. Cumulative copper cathode production from January to April 2026 reached 4.7067 million mt. However, according to SMM, some smelters postponed their maintenance plans or completed crude smelting maintenance ahead of schedule to capture revenue from the by-product sulphuric acid. III. Breakdown of Smelter Profit Sources (i) Sulphuric Acid: The Strongest Profit Contributor at the Current Stage Sulphuric acid is currently the most important by-product profit source for smelters. In pyrometallurgy-based copper cathode production, approximately 3-4 mt of sulphuric acid is produced as a by-product for every 1 mt of copper cathode. As of May 15, the SMM China Copper Smelting Acid Index stood at 1,665 yuan/mt, up 83.7% from the beginning of the year. Sulphuric acid prices currently stay high, meaning sulphuric acid revenue can offset a considerable portion of the revenue loss caused by negative TCs. However, this "sulphuric acid moat" is facing policy challenges. China suspended exports of ordinary industrial sulphuric acid and smelting by-product sulphuric acid starting in May for a period of 8 months. The export ban is not intended to suppress domestic sulphuric acid prices, but rather to prioritize domestic supply for agricultural phosphate fertiliser production and strategic industries such as new energy. Demand side, overall sulphuric acid demand remains tight. Although downstream sectors including phosphate fertiliser, titanium dioxide, and new energy materials saw declining operating rates due to high-priced raw materials, just-in-time procurement still exists. Meanwhile, the supply side is also constrained by concentrated smelter maintenance and high sulphur-based acid production costs, with industry-wide capacity utilization rates at low levels. Cost side, firm sulphur prices provide bottom support for sulphuric acid; supply side, concentrated maintenance limits downside room; demand side, although weak, has not yet formed a substantial enough impact to break down high prices. This means sulphuric acid continues to serve as a profit pillar for smelters. (ii) Precious Metal Recovery: "Incremental Game" Under High Copper Prices In addition, copper concentrates typically contain associated precious metals such as gold and silver, which can be recovered through anode slime processing during smelting. Copper prices are currently at historically high levels, and gold prices also fluctuate at highs, greatly enhancing the economics of precious metal recovery. According to SMM market sources, when gold and silver prices are at high levels, raw materials with impurities rich in gold and silver are assigned extremely high added value. The profit contribution of precious metal recovery to smelters is reflected in: smelters can achieve recovery utilization rates exceeding the gold and silver payable indicators through refined processing, profiting from spot smelting revenue. This portion of revenue is often a significant component of smelters' comprehensive profit structure. However, as gold and silver prices continue to rise, suppliers in the copper concentrates spot trade are simultaneously raising gold and silver payable indicators. The continuously rising precious metal payable indicators and payable benchmark pose an increasingly severe challenge to smelter profitability. IV. Future Trends: Coexistence of Industry Landscape Evolution and Technology Upgrade Requirements However, industry chain profits are irreversibly shifting toward the upstream ore side. Under the medium and long-term landscape of persistently tightening copper concentrates supply and demand, the scarcity value of the resource side is being reassessed by the market. As the copper concentrates supply-demand gap persists over the medium and long-term horizon, and smelters' bargaining power will remain under pressure over the long term. The market is widely concerned about whether TC can quickly pull back in tandem once the continuously rising sulphuric acid prices reach a turning point. Facing the long-term trend of profit squeeze at the mine end and losses in the smelting segment, the future landscape of the copper smelting industry will evolve in the following directions: Direction 1: Integrated consolidation extending upstream. Enterprises with upstream mine assets will have a significant advantage in profitability. Direction 2: Technological upgrades to achieve differentiated competition. Against the backdrop of narrowing profit margins from non-payable metals, the technological barriers of smelters will become increasingly important. Those who can more efficiently extract valuable metals from low-grade ore or complex ore will seize the initiative in the industry reshuffle. Under the extreme environment of persistently negative TCs, sulphuric acid by-product revenue and precious metal recovery are the core profit pillars currently sustaining smelter operations. The supply-demand pattern dictates that the pricing power and profit margins at the mine end will continue to outperform those at the smelting end. The copper smelting industry is transitioning from the traditional model of "earning TCs" to a new competitive landscape of "resource control + technological barriers + integrated operations."

The recent sharp rise in copper prices has been accompanied by several headline trading themes: the widening LME-COMEX spread, record-low copper concentrate TC, the energy crisis in Peru, repeated uncertainty around the restart pace at Grasberg, and the substitution effect between refined copper and copper scrap in China. At a deeper level, however, these events can all be understood through one central theme: the global emphasis on copper resource security is continuing to rise, and the market is repricing the entire copper value chain. Since 2025, the US has continued to strengthen the strategic importance of copper. In its Section 232 investigation into copper imports, the US explicitly included copper, copper concentrates, refined copper, copper scrap and related derivative products within the scope of national security review, and required an assessment of how US dependence on copper imports may affect national security and industrial resilience. Subsequent policy discussions also proposed that part of the high-quality copper scrap generated in the US should be prioritized for domestic sales. Against this backdrop, the COMEX premium over LME is no longer merely a simple screen-traded spread. It has become a price signal through which the US market attracts globally deliverable refined copper resources. If the LME-COMEX spread continues to widen and becomes sufficient to cover transportation, financing, warehousing, delivery and policy risks, it may attract some freely tradable material to the US market. Although this round of trading is different from 2025, the market is already pricing in a wider spread. While market rumors continue to circulate, the COMEX premium has already reflected the US market’s ability to attract resources. Whether this will truly translate into changes in physical trade flows still depends on LME inventories in the US, COMEX inventories and the ratio of cancelled warrants. If US LME inventories decline, the cancelled warrant ratio rises, and COMEX inventories increase at the same time, it would suggest that material may be moving from the LME system into the COMEX system. In that case, the decline in deliverable LME resources could create room for the LME nearby backwardation structure to strengthen. Once LME shifts from contango into backwardation, the impact will further transmit into the LME-SHFE structure. A stronger LME nearby structure would compress China’s import arbitrage ratio and could even reverse the LME-SHFE spread, passively opening China’s export window. On the one hand, a stronger LME structure would raise smelters’ raw material costs and offshore procurement costs. On the other hand, if China’s domestic import ratio remains weak, exports may be forced to recover in order to repair regional price spreads. Under extreme market conditions, it will be necessary to closely monitor LME time spreads, especially the TOM-NEXT spread. If TOM-NEXT strengthens rapidly, it usually indicates that pressure on nearby deliverable resources is rising, and the market may shift from normal spread trading to pricing the risk of a squeeze. For China, the core logic is to secure raw material supply. Copper concentrate TC has fallen to around -$107 to -$103/mt , indicating that miners still hold strong bargaining power and that smelters’ raw material procurement pressure continues to rise. In the short term, high sulphuric acid prices can still partly offset smelters’ margin losses. However, against the backdrop of China restricting or banning some sulphuric acid exports after May, further upside room for domestic acid prices may be limited. If sulphuric acid prices fall while TC remains deeply negative, smelters’ profit structure will become even more distorted. If this is further combined with a weakening LME-SHFE structure and a deterioration in the import arbitrage ratio, smelters will simultaneously face rising raw material costs, processing fee losses and declining by-product revenue. Another key domestic signal is copper scrap. At present, although China’s refined copper social inventory continues to decline under the weakening substitution effect between refined copper and scrap, the sharp increase in copper scrap inventories is also a reality. Affected by reverse invoicing and the fair competition review regulations, tax costs for copper scrap processors have increased. Scrap with invoices has become scarce and is flowing more toward smelters, reducing the actual amount of scrap available to processors and thereby supporting refined copper consumption. However, this support is not without limits. If copper prices continue to rise, the refined copper-scrap spread widens again, and scrap inventory pressure continues to build, the incentive for scrap to substitute refined copper will strengthen. At that point, refined copper demand may decline sharply under the combined effect of high copper prices suppressing consumption and the recovery of scrap substitution, while China’s destocking pace may slow or even reverse into inventory accumulation. The recent market discussions around Peru’s energy crisis and the delayed recovery pace at Grasberg are more emotional triggers under the broader resource security theme, rather than decisive variables that have already changed the current refined copper balance — in other words, they are more of an excuse for the market. The energy issue in Peru has raised market attention to the stability of energy supply for South American mines. As for Grasberg, Freeport Indonesia previously mentioned that full recovery could be delayed until 2028, but Freeport-McMoRan later stated that it still maintained its plan to restore full production by the end of 2027, showing that there is still a gap between market expectations and the actual impact. These events have not caused severe damage to the global physical refined copper balance in the short term. However, against the backdrop of deeply negative TC, China-US resource competition and widening cross-market spreads, any uncertainty at the mine end will be amplified by the market into a supply security premium. Looking ahead, four groups of indicators deserve close attention. First, the LME-COMEX spread, US LME inventories, COMEX inventories and the cancelled warrant ratio. If the spread widens together with a visible transfer of material from LME to COMEX, there is still upside room for LME nearby backwardation. If US inventories remain high, the spread is more likely to stay at the level of policy and financial pricing. Second, LME time spreads, especially Cash/3M and TOM-NEXT. If TOM-NEXT strengthens abnormally, the market should watch for nearby structure risk. Third, China’s refined copper-scrap spread and copper scrap inventories. If the refined copper-scrap spread widens and scrap flows recover, the support to refined copper consumption will weaken. Fourth, TC, sulphuric acid prices and the LME-SHFE ratio. If TC continues to deteriorate, acid prices fall and the ratio weakens, smelters’ operating pressure will rise significantly. Overall, amid the repricing of copper under resource security competition, a price transmission relationship has emerged across COMEX, LME and SHFE, which is the direct driver behind the recent copper price rally. Under the influence of these indicators, capital flows and physical trade flows may be reshaped again. In this environment, securing supply chain stability and cost safety remains a long and difficult process.

[SMM Analysis] Copper prices have surged recently. On the surface, the current hot topics in the copper market are focused on the following areas: the widening LME-COMEX price spread, copper concentrate TCs hitting new lows again, the energy crisis in Peru, the repeated fluctuations in the pace of Grasberg's production resumptions, and the substitution effect between copper cathode and copper scrap in China. However, from a deeper perspective, all these events can be understood under a single theme: the growing global emphasis on copper resource security, with the market repricing the entire industry chain.