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 year 2026 marks the opening year of the "15th Five-Year Plan" period. Against the backdrop of intensifying global macro volatility and the deepening advancement of high-quality development in China, the zinc industry is undergoing profound transformation: tightness on the ore side and the release of smelting capacity are creating structural tension, divergence between domestic and overseas inventories reflects the complex dynamics of supply-demand rebalancing, and technological innovation is becoming the key momentum for resolving contradictions and reshaping the landscape. Key areas under the "15th Five-Year Plan" such as new energy and new-type infrastructure are injecting new momentum into traditional zinc consumption, while green, low-carbon, and circular economy principles are accelerating the restructuring of industrial logic driven by technological innovation. With the joint support of upstream and downstream enterprises in the zinc industry, industry associations, and relevant parties, SMM is about to hold the 2026 SMM Zinc Industry Conference & the 8th Hot-Dip Galvanizing Industry Development and Technological Innovation Forum & the 14th Zinc Salt, Zinc Oxide and Zinc Secondary Resources Development Forum & the Zinc-Based Materials Development Forum on August 6-8 in Qingdao, Shandong. Themed "Converging Zinc Momentum · Building Zinc Industry · Embarking on a New Journey," the conference is driven by the dual engines of macro perspectives and fundamental analysis, closely aligned with the "15th Five-Year Plan" high-quality development mainline, focusing on four major dimensions: macro policies, supply-demand patterns, global trade, and technological innovation. It aims to drive cost reduction and efficiency improvement through technological breakthroughs, respond to market fluctuations through collaborative innovation, and jointly chart a new blueprint for high-quality and sustainable development of the zinc industry. Gansu Changba Nonferrous Metals Co., Ltd. will attend this grand event, discussing industry development trends with industry peers and jointly driving the zinc industry to new heights. Click the to register now, witness and participate in this significant and far-reaching industry event, and co-create a glorious new chapter! ◆ Company Overview ◆ Gansu Changba Nonferrous Metals Co., Ltd. is a subsidiary of Baiyin Nonferrous Group Co., Ltd., with Chengzhou Zinc Smelter and Changba Lead-Zinc Mine under its management. It is a large state-owned nonferrous metals enterprise integrating lead-zinc mining, mineral processing, smelting, and scientific research. Chengzhou Zinc Smelter currently has an annual electrolytic zinc production capacity of 100,000 mt. It is a modern smelter integrating zinc metal smelting, comprehensive utilization of resources, and R&D of new nonferrous metal smelting processes. The enterprise adheres to the development direction of "lean collaboration, digital integration, and green leadership," closely aligned with the goal of creating the ultimate quality benchmark. It has continuously made breakthroughs in improving zinc smelting quality. In 2026, the first batch of high-purity zinc ingots with a purity of 99.998% was successfully produced, injecting solid momentum into further enhancing the enterprise's core competitiveness, expanding the high-end zinc materials market, and driving high-quality development of the enterprise. The Chengzhou Zinc Smelter has always adhered to the pursuit of excellence and perfection. With the successful production of 99.998% high-purity zinc ingots as a major breakthrough, the smelter has continued to increase investment in scientific research, actively introduced advanced and applicable production technologies and equipment, focused on building a high-caliber professional and technical talent team, continuously optimized the production process for 99.997% high-purity zinc ingots, and steadily carried out technical research on even higher-purity zinc products. ◆ Honors Bestowed: Quality Certified by Authoritative Bodies ◆ The outstanding quality of the 99.998% high-purity zinc ingots has been widely recognized by authoritative institutions both within and outside the industry, with numerous prestigious awards attesting to their quality excellence: · Technology Innovation Awards: Leveraging core technological breakthroughs such as "Research and Application of Low-Impurity Electrolytic Zinc Standard Creation," the smelter won the "Second Prize of Nonferrous Metals Industry Science and Technology Award," the "First Prize of Gansu Province Science and Technology Progress Award," and the "Grand Prize of Science and Technology of CITIC Guoan Group Co., Ltd.," with its technical capabilities recognized at national, provincial, and municipal/county levels. The "R&D and Application of High-Grade Zinc Ingot Preparation Process Technology" won a Bronze Award at the 11th International Invention Exhibition "Belt and Road" and BRICS Skills Development and Technological Innovation Competition. "Full-Process Lean Management Control for Creating Excellent Zinc Ingot Quality" won the Second Prize of the 2025 Nonferrous Metals Enterprise Management Modernization Innovation Achievement Award. The smelter built Nanshi's first 5G+ digital workshop, deployed industrial robots and unmanned AGV systems, achieved full-process automation of ingot production, and improved production efficiency by 30%. · Product Quality Awards: The main product, zinc ingots (including the 99.997% grade), together with the by-product sulphuric acid, were awarded the highest honor in nonferrous metals product physical quality certification — the "Gold Cup Award," serving as an authoritative endorsement of their quality stability and superiority by the industry. In 2025, the smelter was recognized as a "Premium Brand" by the CNIA. · Market Access Certification: The main product, zinc ingots, was successfully registered on the Shanghai Stock Exchange, obtaining standardized market circulation qualifications. The brand value reached 2.482 billion yuan, ranking 31st nationwide among "Product Brands," laying a solid foundation for the market promotion of 99.997% high-purity zinc ingots. ◆ Diverse Applications: Empowering High-End Industrial Development ◆ Due to its extremely low impurity content and excellent chemical stability, the 99.998% high-purity zinc ingot demonstrates irreplaceable application value in multiple high-end fields: · High-End Electronics: As a core raw material for electronic component coatings, its low-impurity characteristics effectively enhance the conductivity and service life of electronic devices, and it is widely used in the production of precision electronic components such as integrated circuits and smartphone chips. · Aerospace: Used in anti-corrosion coatings for aerospace components and lightweight alloy material manufacturing, its stable physicochemical properties can adapt to extreme environments, ensuring the reliability of aerospace equipment. · Pharmaceutical and Chemical Industry: Serving as raw materials for pharmaceutical intermediates and high-end catalysts, its high-purity characteristics ensure product safety and efficacy, meeting the stringent standards of the pharmaceutical and chemical industry. · New Energy: In the production of new energy products such as zinc-based batteries and energy storage equipment, high-purity zinc ingots can enhance battery energy density and cycle life, facilitating the upgrading of the new energy industry. ◆ Outstanding Performance: Market Recognition Demonstrates Strength ◆ With a zinc ingot capacity of 100,000 mt, the 99.998% high-purity zinc ingots, leveraging core advantages of low lead, low iron, and low cadmium, received strong recognition from downstream clients upon market launch, delivering impressive market results: · Industry-Leading Zinc Ingot Quality: Zinc ingot purity reaches 99.998%, with lead content at 0.0009%, iron content stable at 0.0003%, and cadmium, tin, and aluminum consistently maintained at 0.0002%, placing it at a leading level in the ISP zinc smelting industry. · Extensive Market Coverage: Products were rapidly sold to core markets such as Shanghai and Xuzhou, covering multiple sectors including high-end electronics and precision manufacturing, breaking the supply bottleneck of high-end high-purity zinc ingots. · Leading Client Satisfaction: With stable purity, extremely low impurity content, and reliable supply capability, a stable client base and strong market reputation have been established. Client satisfaction in 2025 reached 100%. ◆ Future Outlook: Continuously Leading High-Quality Development ◆ Chengzhou Zinc Smelter consistently adheres to the pursuit of excellence and perfection. Taking the successful production of 99.998% high-purity zinc ingots as a significant breakthrough, it continues to increase R&D investment, actively introduces advanced and applicable production technologies and equipment, focuses on building a high-caliber professional technical talent team, and continuously optimizes the production process for 99.997% high-purity zinc ingots while steadily advancing technical breakthroughs for even higher-purity zinc products. Meanwhile, it deepens industry-academia-research collaborative innovation, expands application scenarios of high-purity zinc in high-end manufacturing, new materials, and other fields, and promotes coordinated improvement and synergistic development across the upstream and downstream of the industry chain. The enterprise is anchored on the goal of building an industry-leading lean benchmark enterprise, continuously strengthening whole-process quality management, deepening green and low-carbon production, accelerating intelligent transformation and upgrading, and driving enterprise quality improvement, efficiency enhancement, and transformation with solid achievements, contributing tangible "Chengye Strength" to the high-quality development of the zinc smelting industry. ◆ Contact Information ◆ Long press to scan the code and register now 2026 SMM Zinc Industry Conference

[SMM Analysis] Sulphuric Acid: A Key Variable Reshaping Copper Pricing Logic

[SMM Magnesium Express] On April 28, Wuzhongda Group Joint Stock Company (Wuzhongda) released its 2025 annual report. The report revealed that in the processing of magnesium-aluminum new materials, the full industrial chain layout has achieved positive results. In 2025, this segment achieved operating revenue of 2.787 billion yuan, with a year-on-year increase of 32.59%; total profit reached 222 million yuan, with a year-on-year increase of 66.92%. The report also disclosed that by the end of 2025, its subsidiary Qixin Alloy Materials Co., Ltd. had a primary magnesium production capacity of 73,000 tons, and it is expected that the production capacity will exceed 100,000 tons by the end of 2026, further consolidating its leading position in the primary magnesium smelting industry.

On April 24, the SMM Imported Copper Concentrate Index (weekly) stood at -81.44 USD/dmt, down 2.83 USD/dmt from the previous reading of -78.61 USD/dmt. The deeply negative TC reflects the tightness in the global copper concentrate market, which has already shifted from market expectations to an actual rigid contraction in supply. In the first quarter of 2026, the world's leading mining companies frequently revised down their production guidance, with supply-side disruptions far exceeding early-year forecasts. Freeport significantly lowered its full-year 2026 copper production forecast from 1.542 million tonnes to approximately 1.406 million tonnes, with an expected recovery rate of only 65%, due to slower-than-expected mine recovery at its Grasberg site in Indonesia, affected by mudslides and ore moisture. In addition, road blockades caused by strikes at BHP's Escondida and Zaldivar mines have led to actual production impacts that remain to be monitored. According to SMM exclusive data, the global copper concentrate deficit in 2026 is estimated at 317,000 metal tonnes, a situation that may ease somewhat in 2029. In stark contrast to the persistently falling TC, domestic smelter operating rates remained high in Q1 2026. According to SMM data, China's electrolytic copper output in March 2026 reached 1.2061 million tonnes, up 5.58% month-on-month and 7.49% year-on-year. In Q1 2026, total electrolytic copper output was 3.5278 million tonnes, up 4.60% quarter-on-quarter and 10.45% year-on-year. SMM survey data shows that 11 smelters have confirmed maintenance schedules for Q2 2026. This means that domestic electrolytic copper output is expected to decline in Q2, with spot supplies likely tightening temporarily in May and June. However, some smelters have reported that due to high sulfuric acid prices, maintenance completion times may be brought forward. Sulfuric acid is currently the most important by-product revenue source for the copper smelting industry. According to SMM data, on April 24, 2026, China's copper smelting acid index stood at 1,660.5 RMB/ton, up 31.5 RMB/ton from the previous period. As sulfuric acid revenues have risen steadily from 890 RMB/ton at the start of 2026 to 1,660.5 RMB/ton in April 2026, based on the co-production of 3–4.5 tonnes of sulfuric acid per tonne of electrolytic copper, sulfuric acid income can now cover the copper concentrate procurement cost and part of the processing cost for smelters. The upward slope and magnitude of this increase exceed the deterioration in spot TC. The substantial boost in sulfuric acid profitability allows smelters to tolerate lower TC, creating a cycle of "higher sulfuric acid prices, lower TC." Meanwhile, rising gold and silver prices have further expanded smelters' comprehensive profit margins. Although the copper smelting segment is deeply loss-making, driven by the hefty profits from sulfuric acid, gold, and silver, domestic copper smelters have been able to maintain high operating rates without large-scale production cuts caused by deeply negative TC. Additionally, about 20% of the world's electrolytic copper comes from hydrometallurgical processes, with the DRC and Chile together accounting for nearly 80% of that. Hydrometallurgical copper production consumes large amounts of sulfuric acid, and sulfur is a key raw material for sulfuric acid. The current disruption in the Strait of Hormuz has cut off approximately 50–60% of Middle Eastern sulfur shipments by sea, pushing up sulfur and sulfuric acid prices. Worth noting is that as late April 2026 progresses, sulfuric acid export restrictions combined with increased domestic production have shown signs of price softening. If sulfuric acid prices continue to decline, it will directly squeeze the comprehensive profit margins of domestic smelters. At that point, the dual pressure of persistently low TC and falling sulfuric acid prices could trigger real production cuts on the smelting side. Although gold and silver prices do not directly determine TC trends, their macro-pricing logic as part of the non-ferrous metals sector is worth attention. The market has largely priced in the expectation that the Federal Reserve will not cut interest rates at all in 2026, with the first rate cut possibly delayed until July 2027. For copper, a delayed rate cut means no near-term easing of macro liquidity, but copper's core pricing logic remains the ongoing tug-of-war between tightening supply on the mining side and rigid demand. In other words, precious metals are under pressure, but industrial metals' pricing center remains in real supply-demand fundamentals, which explains why weaker gold and silver prices have not dragged copper prices lower. According to SMM, for Chinese smelters, domestic copper concentrate spot TC transactions are feasible in the range of -81 USD/dmt to -88 USD/dmt. Some holders have attempted to offer TC at -100 USD/dmt, while some smelters are willing to accept deliveries at the lower end around -90 USD/dmt. The downward trend in TC has not yet stopped, and smelter purchasing activity may have weakened slightly, but not significantly. Key areas to watch moving forward: Sulfuric acid side: The price trend will depend on the interplay of multiple factors. First, China's sulfuric acid export policy direction: if export restrictions continue, domestic sulfuric acid supply will be relatively abundant, and prices may fall from highs; if exports are temporarily allowed, overseas hydrometallurgical copper supply risks will rise, but domestic sulfuric acid prices may find support. Second, the recovery of sulfur supply: when shipping through the Strait of Hormuz returns to normal will directly affect the pace at which Middle Eastern sulfur can supplement global markets. Third, seasonal demand changes for downstream products such as phosphate fertilizers will also cause periodic price volatility for sulfuric acid. Mining side: Focus on the progress of the Grasberg conversion project, labor negotiation results at Chilean mines, and logistics stability at mines such as Las Bambas in Peru. Any new supply release will effectively ease TC pressure. Macro side: Monitor the Federal Reserve's monetary policy path, the U.S. dollar index, the actual driving effect of China's pro-growth policies on copper consumption, and whether the growth rate of copper demand in global new energy sectors is slowing marginally.

On April 14, a delegation from SMM Information & Technology Co., Ltd. (SMM), including Ye Jianhua, Director and Supervisor of SMM's Industry Research Department, Feng Chundi, Expert at SMM's Industry Research Institute, and Wu Tao, SMM's Copper and Tin Overseas Marketing Manager, visited Chambishi Copper Smelter Limited (CCS) for exchange and survey. The delegation received warm hospitality from CCS's leadership. During the visit, both parties engaged in pragmatic communication based on their respective core businesses. Leveraging its core strengths in non-ferrous metal price index R&D, industry chain big data monitoring, copper market analysis and forecasting, in-depth industry research, and global non-ferrous resource connectivity, SMM shared insights on international copper market operating logic and price trend analysis with the enterprise, in the context of the current global copper smelting supply-demand pattern, raw material procurement landscape, and TC fluctuation trends. As a core copper smelting producer outside China, CCS provided a detailed introduction to its production and operation status, smelting process advantages, capacity release pace, raw material procurement, and product exports layout, and elaborated on the practical experience of ex-China copper smelters in production management, cost control, green production, and localized operations. Meanwhile, both parties exchanged views on common industry topics including development pain points of the copper smelting industry outside China, raw material supply security, finished product circulation and trade, industry policy changes, and low-carbon smelting development trends. They also reached preliminary consensus on future directions such as industry chain information sharing, market data exchange, joint market analysis, and industry resource coordination, laying a solid foundation for deepening regular exchanges and promoting high-quality collaborative development of the copper smelting industry chain. Introduction to Chambishi Copper Smelter Limited (CCS) Chambishi Copper Smelter Limited (CCS) is the first large-scale modern pyrometallurgy copper smelting enterprise invested by China overseas, entirely self-designed and constructed. Located in the Zambia-China Economic and Trade Cooperation Zone, the company has 170 Chinese staff and 1,600 Zambian employees. The company has always focused on its vision of "building an internationally first-class smelting enterprise with enduring prosperity," upheld the corporate spirit of "self-transcendence, continuous breakthroughs, and pursuit of excellence," benchmarked against first-class standards with meticulous craftsmanship, and continuously strengthened and optimized enterprise management, with its comprehensive competitiveness steadily improving. As of the end of 2024, the company had produced over 3.3 million mt of copper products and 8.7 million mt of sulphuric acid, with cumulative sales revenue of approximately $21 billion, effectively driving local economic development in Zambia and becoming a shining pearl along the Belt and Road! Enterprise History and Development Achievements (Pursuing Excellence, Benchmarking Against the Best and Forging Ahead) To extend the industry chain and retain more added value locally, in 2006, China Nonferrous Metal Mining (Group) Co., Ltd. cooperated with Yunnan Copper to introduce the advanced ISA copper smelting process to Zambia, with shareholding ratios of 60% and 40% respectively. From the design stage, the Company drew on successful experience in China and incorporated the characteristics of Zambian raw materials to re-optimize and re-innovate the key processes and technologies of the ISASMELT process, strengthening system integration. This resulted in multiple innovative achievements, including "Integration Innovation and Application of ISASMELT Furnace" and "Comprehensive Automated Control System," which were awarded the First Prize for Scientific and Technological Progress by China Nonferrous Metals Industry Association (CNIA) in 2010. The ISASMELT furnace campaign life broke world records multiple times, with the second campaign reaching 218 weeks and the third campaign reaching 244 weeks, establishing an international benchmark. In 2021 and 2022, the Company's copper production exceeded the designed capacity of 250,000 mt for two consecutive years, making history. In 2024, production further surpassed 260,000 mt, setting a new historical record. In September 2013, the Company was honored with the title of Advanced Collective of Central State-Owned Enterprises. In July 2021, it was successfully selected as a Benchmarking Enterprise under the administration of the State-owned Assets Supervision and Administration Commission of the State Council (SASAC). Process Flow (Dedicated and Professional, Striving for Excellence to Drive Development) The Company adopts the internationally advanced and mature process of "oxygen-enriched top-blown submerged bath smelting, electric furnace settling and separation, PS converter blowing, and anode furnace pyrometallurgy refining" to produce copper anode, and employs the "double-conversion double-absorption" process to produce sulphuric acid. Adhering to the concept of sustainable development, the Company has built a slag flotation recovery system with a daily processing capacity of 1,500 mt of furnace slag, and a bismuth recovery system with a daily processing capacity of 6 mt of flue dust, continuing to recover metals such as copper, cobalt, and bismuth from smelting slag and flue dust. Social Responsibility (Cooperation and Sharing, Giving Back to Society with Strong Responsibility) The Company actively practices its core values of "Dedication, Cooperation, and Sharing," consistently focusing on its core business of copper pyrometallurgy smelting, engaging in extensive cooperation with upstream and downstream clients, and sharing development achievements with employees and local communities. Since its establishment, the Company has cumulatively paid over $300 million in various taxes and fees in Zambia, created over 5,000 employment opportunities, and cooperated with more than 300 local suppliers, contributing to Zambia's green, harmonious, and shared development. The Company actively fulfills its social responsibilities by increasing investment in social welfare programs for local communities in Zambia, covering infrastructure, education, healthcare, and sanitation. These efforts include sponsoring the renovation of clinics in Kalulushi, supporting the Bushifire Orphanage, donating the construction of classrooms at Buyantashi School, Luato Market, Kankuko Bridge, Chibuluma Community Tennis Court, Chimfunshi Chimpanzee Rescue Center, and Modern Stars Football Club, among others. With a cumulative investment of over $4 million, the Company has earned high praise from local government and warm welcome from the public, establishing a strong corporate image. The Company actively promotes employee localization and continuously achieves skills transfer. The company invested over 5 million Kwacha, and externally carried out technical and non-technical training programs in electric welding, electrical power, pneumatics, technical control, management supervision, and equipment maintenance through the China-Zambia Vocational and Technical College, the TEVETA Fund, and other channels. Internally, through mentorship programs and other approaches, the company conducted business training in masonry, fitting, and other skills. The localization rate of the company's employees reached over 92%, the skills of local employees were significantly enhanced, and technical expertise was exported to the DRC. Vision and Outlook (Staying True to Our Original Aspiration, Building Tomorrow with a Shared Destiny) Innovation-driven development knows no bounds. Over the past decade and more, the company has upheld a sense of survival crisis and market competition awareness, adhered to innovation-driven development, and achieved high-quality growth. In 2021, the company's information technology infrastructure was completed and successfully put into use, with a commitment to building an automated, digitalized, and intelligent factory. In August 2023, the company's anode furnace pyrometallurgy refining system technical renovation project was completed and put into operation. In November 2024, the company's three-year action plan for technology-empowered safety and environmental protection was officially finalized, focusing on technology empowerment and fostering new quality productive forces, propelling the company's high-quality development to a new level. Through collaborative development, benchmarking against first-class standards, technological innovation, and increased production and efficiency, the company continues to advance toward its corporate vision of "becoming an evergreen, world-class smelter." The conference is scheduled to be held on September 15–16, 2026 in Lusaka, Zambia. You are cordially invited to participate! Conference Contact : Wu Tao: 18270916376 jennywu@smm.cn