The zinc market in May 2026 is experiencing unprecedented structural pressure. Import zinc concentrate TCs have fallen to -$56.25/dmt, while domestic TCs have dropped to 400 yuan/mt in metal content on a weekly basis.

[Insight into Provincial Profit Landscape: New Release of Zinc Smelting Profit Model by Province] In May 2026, the zinc market is experiencing unprecedented structural pressure. TCs for imported zinc concentrates have fallen to -$56.25/dmt, while domestic TCs dropped weekly to 400 yuan/mt Zn. Meanwhile, the sulphuric acid export control policy continued to take effect in May, with some 98% smelting acid in south China declining by around 300 yuan/mt, directly impacting an important by-product revenue source for smelters. LME zinc inventory of around 100,000 mt stands in sharp contrast to China's social inventory exceeding 260,000 mt. The pattern of "tight ore and loose ingots" has made smelters the most severely squeezed link in the industry chain......

According to SMM, a zinc smelter in south-west China postponed its originally scheduled early June maintenance recovery to mid-to-late June for production resumptions, as equipment materials had not yet arrived at the plant. Current production has been reduced to approximately one-third.

[Penoles Releases Q1 2026 Production Report] Penoles released its Q1 2026 production data. For the zinc mine segment, its zinc concentrates production reached 66,600 mt in the quarter, up 15.6% YoY, mainly driven by the resumption of operations at Tizapa and improved grades and recovery rates at Juanicipio, Sabinas, and Fresnillo. For the zinc smelting segment, its zinc production reached 48,100 mt in the quarter, up 14.7% YoY, primarily due to an increase in the volume of concentrates processed by the zinc smelter, which had undergone its annual planned maintenance shutdown in Q1 2025.

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

On the evening of April 20, Chengtun Mining's Q1 report showed that the company achieved total operating revenue of 9.354 billion yuan, up 65.08% YoY; net profit attributable to the parent company was 1.02 billion yuan, up 250.40% YoY. Regarding the main reasons for the increase in Q1 revenue and net profit, Chengtun Mining stated that the company's main copper products saw higher production and sales volumes YoY, copper prices rose YoY, and profits improved; the company enhanced quality and efficiency in production and operations, controllable costs declined YoY, and performance grew during the period. In addition, Chengtun Mining also announced on April 20 that as of the disclosure date, the cumulative total outstanding external guarantees of the publicly listed firm and its controlling subsidiaries amounted to 10.854 billion yuan, accounting for 65.86% of the most recently audited net assets of the publicly listed firm. Of this, the cumulative total guarantees provided to associates was 172.04 million yuan; the cumulative total guarantees provided to controlling subsidiaries was 10.682 billion yuan, accounting for 64.82% of the most recently audited net assets of the publicly listed firm. None of the company's external guarantees were overdue. Chengtun Mining announced on April 8 that its wholly-owned subsidiary Preeminence Holdings Limited plans to acquire 50% equity of Nkoyi Leopard Mining and Investment Limited, a wholly-owned subsidiary of Novel Mining and Services Limited, a company registered in the Emirate of Abu Dhabi, UAE, for $300 million, thereby indirectly obtaining a 30% interest in specific copper-cobalt mining rights located in the DRC. Upon completion of this transaction, Nkoyi will become an associate of the company and will not be consolidated into the financial statements. Under the agreement, Preeminence plans to acquire 50% equity of Nkoyi for $300 million. Nkoyi's wholly-owned subsidiary has entered into a joint venture agreement for specific copper-cobalt mining rights, holding a 60% interest in such mining rights. Therefore, after this transaction, the company will hold a 30% interest in such mining rights. Nkoyi was established in October 2024 and has not yet commenced production or operations; its core asset is the aforementioned 60% interest in the copper-cobalt mine project. The counterparty, Novel Mining, was established in March 2026 and registered in Abu Dhabi, with its core project being the copper-cobalt mining rights. On April 2, Chengtun Mining responded to investor questions on an interactive platform, stating that the company continuously monitors relevant risks in its overseas operating locations, and that its operating projects in the DRC are currently running stably. On April 2, Chengtun Mining responded to investor questions on an interactive platform, stating that to effectively manage price fluctuations of non-ferrous metals and exchange rate risks, the company has adopted multiple risk management measures, including hedging and locking in selling prices of some mine product inventory and copper, gold and other products through bears futures contracts. When market prices of metal products rise, losses are reflected on the futures side. In 2025, market prices of copper, gold and other metals rose significantly, resulting in large unrealized losses on the futures side, which are offset by corresponding gains on the spot cargo side. The futures team will diligently carry out hedging operations in a prudent manner centered on the company's core business within the framework of the company's management systems. Chengtun Mining's previously released 2025 annual report showed that in 2025, the global non-ferrous metals industry entered a new development stage of supply-demand restructuring and value reassessment. Energy metals such as copper, cobalt and nickel were boosted by rigid demand from new energy, AI computing power, global power grid upgrades and other sectors, coupled with rigid supply-side constraints, driving the price center continuously upward. Precious metals such as gold saw a value opportunity amid global geopolitical conflicts and rising safe-haven demand. The new energy battery industry achieved high-quality advancement amid structural opportunities. Facing new industry development opportunities, the company adhered to its resource-oriented and internationalization strategy, deepened its entire industry chain layout of "controlling upstream resources and expanding downstream materials," strengthened operational measures of "controlling costs, focusing on details, and enhancing quality and efficiency," continuously consolidated core capabilities in global resource exploration, construction and operations, and enhanced the industry chain extension value of smelting, processing and materials manufacturing, continuously strengthening operational quality and resilience against cyclical fluctuations amid industry value restructuring. In 2025, the company achieved new breakthroughs in global resource deployment and industry chain operational capabilities. Overseas core projects achieved remarkable results in quality and efficiency improvement. After the completion of the Phase II expansion of the BMS copper smelting project, capacity increased significantly, reaching 120,000 mt in metal content by year-end, with annual production of 106,300 mt in metal content, and the profitability resilience of the copper-cobalt business continued to strengthen. The Kalongwe integrated mining and smelting project in the DRC advanced full-process technological transformation and engineering construction, achieving comprehensive upgrades in product quality control, production energy consumption reduction, comprehensive utilization of resources, and refined cost management. Indonesia's Youshan Nickel maintained stable operations amid industry fluctuations. The domestic segment made progress on multiple fronts: the Guizhou project further released industry chain extension value, Huajin Mining achieved steady growth in gold production, and the Dali Sanxin copper mine construction progressed in an orderly manner. In 2025, the company achieved operating revenue of 30.003 billion yuan, up 16.60% YoY; net profit attributable to shareholders of the publicly listed firm was 1.961 billion yuan, down 2.19% YoY. Chengtun Mining stated in its 2025 annual report that the company is committed to the development and utilization of energy metal resources, especially metal varieties required for new energy batteries, while also expanding into precious metals such as gold. The company focuses on copper, nickel, cobalt and gold. Its main business segments include energy metals, base metals, metal trading and others. Regarding its main business operations, Chengtun Mining provided the following overview: 1. Energy metals business: During the reporting period, the company's energy metals business achieved revenue of 20.384 billion yuan, with a gross margin of 25.69%, down 2.71 percentage points from the previous year. In 2025, copper products production was 207,400 mt in metal content, up 17.48% from the previous year; copper products revenue reached 14.071 billion yuan, up 34.20% YoY, with a gross margin of 28.88%, down 6.35 percentage points YoY; cobalt products production was 9,200 mt in metal content, down 30.58% from the previous year, with revenue of 1.011 billion yuan, down 30.64% from the previous year, and a gross margin of 53.76%, up 10.21 percentage points from the previous year; nickel products production was 49,400 mt in metal content, up 50.42% from the previous year, with revenue of 4.286 billion yuan, up 13.16% from the previous year, and a gross margin of 0.32%, down 3.25 percentage points from the previous year. (1) Copper-cobalt segment: ① The company actively advanced production, construction, quality improvement and efficiency enhancement of its copper-cobalt segment in the DRC. By the end of the reporting period, the company's total copper capacity in the DRC reached 230,000 mt in metal content per year. The company's copper-cobalt smelting projects CCR and CCM maintained stable production and operations while continuously optimizing process flows, keeping product qualification rates at high levels. BMS successfully completed its Phase II expansion, officially entering the ranks of enterprises with annual copper production capacity of over 120,000 mt in metal content. The Kalongwe copper-cobalt project coordinated full-process technological transformation and engineering construction in 2025, successfully completing the implementation of core technological transformation projects, achieving comprehensive upgrades in product quality control, production energy consumption reduction, comprehensive utilization of resources, and refined cost management, with significant cost reduction and efficiency improvement results. ② Dali Sanxin actively processed mine construction-related permits and has obtained the project approval report, among others. Land use and safety and environmental assessment procedures are progressing steadily. ③ During the reporting period, the company actively sought sustainable resource security through exploration in high-potential areas and pursuing acquisitive copper ore resource M&A and cooperation opportunities. (2) Indonesia nickel segment: During the reporting period, the Youshan Nickel project achieved stable production and operations. In 2025, nickel prices fluctuated downward overall under an oversupply pattern, with a rebound at year-end due to Indonesian policy disruptions. Through comprehensive measures including improving management, optimizing production processes, and rationally arranging production and operations, as well as forming industry chain synergies with related domestic industries, the industry chain's risk resistance was enhanced. The company will continue to seek further development opportunities in the nickel segment on both the mine resource side and the smelting side. (3) Deep processing and materials segment: ① In 2025, amid the severe raw material shortage caused by the DRC's "cobalt export ban," Kelixin achieved value maximization through precise control of production and shipments pace and efficient allocation of limited raw material resources. ② Zhonghe Nickel optimized process technology, further advanced refined management of production sites, achieved results in process control of high-magnesium slag-type materials, and improved the system's adaptability to raw materials from multiple channels. ③ As of the end of December 2025, the Guizhou Phase I project completed its capacity ramp-up and achieved full-capacity operation, while the Guizhou Phase II project construction was actively progressing. The company conducted systematic process benchmarking, further optimized system process flows, strengthened refined management and control requirements for various tasks, and ensured continuous and stable operation of production systems. 2. Base metals business: (1) During the reporting period, Chengtun Zinc & Germanium's zinc smelting operated at full capacity and comprehensively recovered valuable metals including germanium, silver, copper, indium and gold. Germanium product production increased 37.18% YoY, and the industrialisation of indium metal comprehensive recovery achieved phased success. A breakthrough was achieved in smelting furnace control technology, with slag processing volume and valuable metal recovery rates steadily improving, and economic benefits significantly enhanced. (2) During the reporting period, the company actively advanced the processing of domestic mine permits to ensure orderly construction. Baoshan Hengyuan Xinmao obtained the provincial NDRC's approval for the mining engineering project in September 2025. Huajin Mining operated according to plan in 2025, selling 320.75 kg of gold and achieving revenue of 244 million yuan. 3. Metal trading business and others: During the reporting period, metal trading achieved operating revenue of 999 million yuan, down 24.46% YoY, accounting for only 3.33% of total revenue. Currently, the company's main business scale is growing steadily. While the scale and proportion of industrial production and manufacturing have increased, the trading business scale has been gradually reduced, achieving good results on the path of high-quality, sustained and stable development. Regarding the company's business plan, Chengtun Mining stated: In 2026, the company's production and operation targets are: copper products production of 230,000 mt in metal content; cobalt products production of 15,000 mt in metal content; nickel products production of 60,000 mt in metal content; zinc products production of 300,000 mt; and gold products production of 380 kg. In other areas, domestic mines include continuing to advance the full-scale construction and commissioning of the Dali Sanxin copper mine, proceeding with the Baoshan Hengyuan Xinmao mining project construction as planned, increasing Huajin Mining production, and achieving full commissioning of the Guizhou Phase II project. Given the complex and volatile market environment, this business plan serves only as a guiding indicator, is subject to uncertainties, and does not constitute a commitment to achieving the stated production targets. To safeguard the interests of all shareholders, the company reserves the right to revise this business plan in a timely manner based on changes in market conditions, industry policy adjustments, and actual production and operational needs. Investors are advised to pay close attention to industry-specific risks, rationally recognize the uncertainties of forecast information, and make prudent investment decisions. Citi raised its 0-3 month copper price forecast to $13,000 per mt. ANZ believes that demand resilience driven by the energy transition and data center growth will keep the market at a 4%-5% supply gap, thereby supporting copper prices. A Huafu Securities research report dated March 8 showed: Copper — short-term, expectations for US Fed interest rate cuts persist, and the tight fundamental landscape continues to support copper prices; medium and long-term, as deeper US Fed interest rate cuts boost investment and consumption while opening up room for China's monetary policy, coupled with potential inflationary rebound from the Trump administration's possible fiscal easing, the copper price center is expected to shift upward, and strong new energy demand will widen the supply-demand gap, maintaining a bullish outlook on copper prices. Aluminum — short-term, aluminum prices are mainly driven by macro sentiment and capital flows. Currently, the extent of aluminum price gains will depend on the duration of the strait blockade; if the shipping disruption is brief, the impact on prices should be limited, but a prolonged blockade could push aluminum prices to new highs. Individual stocks: Copper — focus on Zijin, CMOC, JCC, Chengtun Mining, Zangge, Jchx and Beibu-Gulf Copper, and H-shares focus on China Nonferrous Mining and Minmetals, etc. Aluminum — focus on Hongqiao Holdings, Tianshan, Yunnan Aluminum, Shenhuo, Huatong and Zhongfu, etc.

The 2026 SMM (21st) Lead & Zinc Conference and Industry Expo opened grandly at Howard Johnson Agile Plaza in Chengdu, Sichuan during March 25–27 2026. Organized by SMM, the event brought together global enterprises, professional experts and industry peers from across the entire lead and zinc supply chain. Participants focused on industry hot topics, analyzed market trends and explored development strategies, establishing a highly efficient platform for communication and collaboration to support high-quality growth of the sector. To further strengthen the overseas delegation’s comprehensive understanding of China’s lead and zinc industrial chain and build closer connections between international industry peers and key producers in China, SMM led a high-level overseas delegation on a multi-day industrial tour starting on the afternoon of March 27. The delegation included representatives from global giants, such as Nyrstar, a top European lead and zinc smelting firm, Nexa Resources, a South American giant in lead-zinc mining and smelting, and Befesa, a pioneer in zinc recycling. During the tour, the delegation visited 8 Chinese enterprises. including: COSCO Shipping Sichuan Chengtun Zinc & Germanium Technology Sichuan Kunshun Zinc Industry Yunnan Luoping Zinc & Electricity Hongzhou Hongqian Nonferrous Chemical Yunnan Zhenxing Industrial Group Mengzi Mining & Metallurgy Danxia Smelter of Shenzhen Zhongjin Lingnan Nonfemet The delegation members went deep into production sites, held in-depth discussions and exchanges, and gained a full picture of China’s lead and zinc industry in terms of production operations, technological innovation, capacity scale and market layout, greatly enhancing their insight into and understanding of the entire industrial chain. SMM has systematically compiled detailed information of all enterprises that were visited during this tour, with details below: COSCO Shipping On the afternoon of March 27, the delegation visited COSCO Shipping for an exchange, where they received a warm welcome from the company's leadership. Both sides engaged in discussions on topics such as equipment transportation and technological upgrades. Sichuan COSCO Shipping Logistics Supply Chain Management Co., Ltd. is a wholly-owned subsidiary of COSCO Shipping Logistics Supply Chain Co., Ltd., registered and established in Chengdu, Sichuan Province, with an investment of 30 million yuan. COSCO Shipping Logistics Supply Chain Co., Ltd. is affiliated with China COSCO Shipping Corporation Limited and serves as a core member of the "shipping, ports, and logistics" segment of COSCO Shipping Group, as well as an important component of its global digital supply chain system. The company operates warehouse space exceeding 6 million m², including 19 futures delivery warehouses. China COSCO Shipping Corporation Limited is a globally leading shipping enterprise group, with a combined fleet capacity of 130 million DWT across 1,535 vessels, ranking first in the world. Sichuan COSCO Shipping Logistics Supply Chain Management Co., Ltd. holds business qualifications and an operational scope covering multiple transportation modes including sea, land, air, and rail, providing comprehensive logistics services spanning both international and Chinese markets. Since entering the non-ferrous metals delivery warehouse business in 2016, the company has adhered to the principle of "client-centered and market-oriented," continuously enhancing its service capabilities and achieving steady business growth. Currently, at key logistics periods such as Shanghai Baoshan, Shanghai Yangshan, and Yixing in Jiangsu, the company successfully operates delivery warehouses designated by the Shanghai Futures Exchange for copper, nickel, zinc, and other products. It has become one of the three major non-ferrous metals warehouses of SHFE and was honored with the title of "Top Ten Designated Non-Ferrous Metals Delivery Warehouses" by the Shanghai Futures Exchange for two consecutive years. Sichuan Chengtun Zinc & Germanium Technology Co., Ltd. On March 28, the delegation visited Sichuan Chengtun Zinc & Germanium Technology Co., Ltd. (Shimian City). Both sides engaged in in-depth exchanges on the development of the zinc smelting industry, with a focus on thorough discussions regarding product processing, production techniques, capacity scale, market trends, and the current challenges facing the industry. Sichuan Chengtun Zinc & Germanium Technology Co., Ltd. was established on December 6, 2015, with a registered capital of 1.6 billion yuan. The company has an annual capacity of 300,000 mt of electrolytic zinc, 150,000 mt of sulphuric acid, 400,000 mt of electrolytic zinc waste residue processing, and 40 mt of high-purity germanium dioxide. On January 16, 2019, the company was approved by the China Securities Regulatory Commission and merged into the publicly listed firm Chengtun Mining Group Co., Ltd. The company's main business includes smelting and R&D of zinc-germanium series products, as well as comprehensive recovery of multiple metals. It has formed a complete industry chain from zinc concentrates entering the plant to finished products leaving the plant. Its production lines include zinc calcine, electrolytic zinc, electrolytic zinc waste residue processing, and comprehensive recovery of rare and precious metals. Sichuan Kunshun Zinc Industry Co., Ltd. (Shimian City) On March 28, the delegation headed to Sichuan Kunshun Zinc Industry Co., Ltd. (Shimian City) for a visit and exchange, where they received a warm reception from the enterprise. Both parties held in-depth discussions and exchanges on zinc smelting, covering topics such as production costs, production and market landscape, raw material procurement and processing, industry chain competitive advantages, and distinctive process technologies. Sichuan Kunshun Zinc Industry Co., Ltd. is a specialized and green environmental protection enterprise jointly invested and established by Sichuan Metallurgical Holding Group Co., Ltd. and Shimian Dongshun Zinc Industry Co., Ltd. to implement the national green production philosophy, actively develop the circular economy, and promote the comprehensive utilization of solid waste resources. It integrates solid waste treatment, recycling, and resource regeneration. The company primarily uses high-tech methods to carry out clean utilization and harmless treatment of heavy metal-containing waste generated by industries such as metallurgy and chemicals, eliminating the environmental impact of heavy metal solid waste at the source. The company was established in 2021 and is located in Zhuma Industrial Park, Shimian County, Ya'an City, Sichuan Province, covering an area of 65 mu with a total investment of 180 million yuan. The company has built a 3.5m × 50m Waelz rotary kiln production line, equipped with advanced and well-established low-grade zinc oxide production technology, achieving a resource recovery utilization rate of over 95% and effectively managing waste gas, noise, solid waste, and groundwater risks. It is also equipped with supporting facilities including desulphurization, denitrification, and flue gas defogging towers, as well as a wastewater treatment station, raw material warehouse, raw material pre-washing workshop, water slag processing workshop, biomass semi-gasification furnace, zinc crystallized salt workshop, production safety and environmental protection center, and laboratory for detection and testing. The company holds qualifications for treating hazardous waste categories including HW12, HW17, HW23, HW48, and HW49, with an annual capacity to process 100,000 mt of zinc-containing waste. Its main products include low-grade zinc oxide and zinc crystallized salt. The company has always upheld the green and environmentally friendly development philosophy, adhering to the fundamentals of "being responsible for the environment, for clients, and for employees," guided by technological innovation, and targeting the "reduction, recycling, and detoxification" of solid waste pollution prevention and control. The company is committed to building a modern "solid waste" management and disposal service provider, actively carrying out emergency environmental protection disposal, proactively assuming social service functions, and making positive contributions to promoting the circular economy development in Sichuan and strengthening the ecological civilization construction of lucid waters and lush mountains! Yunnan Luoping Zinc & Electricity Co., Ltd. (Qujing City) On March 30, the delegation visited Yunnan Luoping Zinc & Electricity Co., Ltd. (Qujing City) for exchanges. During the meeting, both sides conducted in-depth discussions on key topics including magnesium removal process optimization, production management organization, and raw material substitution plans, and put forward constructive suggestions on improving the plant environment. Yunnan Luoping Zinc & Electricity Co., Ltd. was established to fully leverage Luoping's local hydropower and lead-zinc mineral resource advantages. In accordance with the "ore, electricity, and smelting integration" development strategy proposed by the Luoping County Party Committee and County Government, and the overall requirements of the Municipal Party Committee and Municipal Government for the reform of industrial enterprises across the city, the company was registered and established at the Yunnan Provincial Administration for Industry and Commerce on December 21, 2000. It was listed on the Shenzhen Stock Exchange A-share market in 2007 and is a state-controlled enterprise under Luoping County. The company's assets are an optimized combination of three components: hydropower, lead-zinc mines, and zinc smelting. In terms of company assets, they are primarily composed of three advantageous resources of Luoping: mineral, hydropower, and zinc smelting. These mainly include six production units: Luoping County Fule Lead-Zinc Mine with an annual processing capacity of 100,000 mt of raw ore, Lazhuang Power Plant with annual power generation of 250 million kWh (installed capacity of 60,000 kW), a zinc smelter with an annual output of 120,000 mt of electrolytic zinc, a zinc powder plant with an annual output of 12,000 mt of ultra-fine zinc powder, a comprehensive utilization plant with an annual processing capacity of 129,500 mt of zinc slag, and a sulphuric acid plant with an annual output of 140,000 mt of sulphuric acid, achieving a total annual industrial output value exceeding 2 billion yuan. The company has six wholly-owned subsidiaries. The company's main businesses include hydropower generation, mining of lead, zinc, and other non-ferrous metals, as well as the production and sales of zinc smelting and its extended products. It is currently the only publicly listed firm in China's zinc smelting industry that integrates mining, power generation, chemical processing, and smelting. Its products include zinc sulphide concentrates, lead concentrates, zinc ingots, industrial sulphuric acid, ultra-fine zinc powder, cadmium, germanium concentrates, silver concentrates, copper concentrates, zinc alloys, industrial and residential electricity, edible oils and fats, among others. Its main product, "Jiulong" brand zinc ingots, is popular in non-ferrous product markets in and outside China thanks to its superior product quality and corporate reputation. Honghe Prefecture Hongqian Non-ferrous Chemical Joint-Stock Co., Ltd. On March 31, the delegation visited Honghe Prefecture Hongqian Non-ferrous Chemical Joint-Stock Co., Ltd. for exchanges. The two sides held in-depth discussions on topics including the economic benefits of smelting by-products, energy utilization efficiency, the current status of enterprise development, and future cooperation intentions. Honghe Prefecture Hongqian Non-ferrous Chemical Joint-Stock Co., Ltd. was established on August 1, 2007, with a registered capital of 50 million yuan. The total investment in project construction was 475.5543 million yuan. The company currently has over 600 employees and covers an area of 443 mu. The plant is located in the Heishenmiaobo Industrial Zone, situated in the central area of the Gejiu-Kaiyuan-Mengzi urban cluster. The company is a new-type joint-stock enterprise centered on crude lead smelting, integrating sulphur dioxide acid production, waste heat power generation, lead electrolysis, and recovery of precious and rare metals such as gold, silver, antimony, and bismuth, with further extension into deep processing of lead-series products including red lead, massicot, electrode plates, and storage batteries. It is a benchmark enterprise among private lead smelters in the city, featuring a relatively large scale, advanced technology, compliance with environmental protection standards, comprehensive utilization of resources, and a complete industry chain. The company pioneered the application of new technologies to upgrade and transform the traditional crude lead smelting model among private enterprises in the city. The company has formulated the working philosophy of "prioritizing environmental protection, ensuring safety, attracting talent, enforcing strict management, and enhancing efficiency," and continues to drive high-quality development. In April 2007, the company commissioned China ENFI Engineering Technology Co., Ltd. to conduct a feasibility study on the lead smelting technological transformation project, and determined a comprehensive industrial facility technological transformation project with a total investment of 490 million yuan and an annual capacity of 60,000 mt of crude lead. On December 21, 2009, the "Demonstration Project of Oxygen-Enriched Bottom-Blowing Lead Smelting Technology with Annual Output of 60,000 mt of Crude Lead" was designated by the Provincial Department of Science and Technology as a 2009 Yunnan Provincial Science and Technology Innovation Project. In 2010, it was further designated as a key industrial project by the provincial, prefectural, and municipal governments. On November 14, 2011, the company obtained ISO9001:2008 quality management system certification. On March 7, 2012, "HSPb99.94PCT" was successfully registered on the London Metal Exchange. In 2019, the company successively passed the safety completion acceptance and environmental impact assessment completion acceptance, fully achieving compliant operations and sustainable development. Yunnan Zhenxing Industrial Group Co., Ltd. On March 31, the delegation headed to Yunnan Zhenxing Industrial Group Co., Ltd. for a visit and exchange. Both parties conducted in-depth discussions on topics including Yunnan Province's mineral resource endowment, smelting industry development trends, corporate business strategies, and technological innovation applications, jointly assessing the current status and prospects of the industry and analyzing the challenges and opportunities ahead. Yunnan Zhenxing Industrial Group Co., Ltd. (hereinafter referred to as "the Group") was founded in 1996 and is located in the Chongposhao New Materials Industrial Park, Shadian Sub-district Office, Gejiu City. The Group currently has 7 subsidiaries, 2 holding companies, and 1 equity-participation company, with approximately 3,000 employees. Its capacity reaches annual output of crude lead (100,000 mt), electrolytic lead (60,000 mt), zinc ingot (20,000 mt), lead-acid battery plates (9 million sets), lead-acid batteries (6 million units), superphosphate (350,000 mt), sulphuric acid (200,000 mt), and monoammonium phosphate (MAP) (60,000 mt). The Group has established five major production sites and five major product brands covering crude lead raw material, lead-zinc smelting, power supply manufacturing, fertilizer and chemical production, and resource recovery. It has formed an internal industrial cycle spanning lead ore mining—lead-zinc smelting—lead-based alloy melting—battery manufacturing—waste battery recycling—precious metals production, making it one of the few private non-ferrous enterprises in China with a complete lead industry chain. Since 2013, the Group has been consecutively recognized as one of the Top 100 Non-Public Enterprises in Yunnan Province. In 2025, it ranked 41st among the "Top 100 Non-Public Enterprises in Yunnan Province" and was selected for the first time into the "Top 20 Private Enterprises in Innovation Capability," ranking 7th. Yunnan Shadian Lead Industry Co., Ltd., a subsidiary controlled by the Group, ranked 71st. The Group has received nearly 100 honors at various levels, including "High-tech Enterprise," "Outstanding Private Technology Enterprise," "Enterprise with Harmonious Labor Relations," "Provincial Model Collective for Ethnic Unity and Progress," and "Key Enterprise for Industrial Development in Honghe Prefecture" in Yunnan Province. The Group's Yunsha brand lead ingot was successfully registered on the London Metal Exchange in 2007 and on the Shanghai Futures Exchange in 2020. In 2021, the Group was rated AAA in enterprise credit rating in the national non-ferrous metals industry. In August 2024, it was designated as a "Qiangyuan Zhuqi" Industry-Finance Service Base by the Shanghai Futures Exchange. Looking ahead, the Group will pursue the philosophy of "seeking survival, pursuing development, and accelerating enterprise transformation and upgrading," adhering to the working approach of "rooting in Honghe, basing in Yunnan, radiating to surrounding regions, and expanding across China." It will thoroughly implement strategies of enterprise management transformation, technology-driven development, talent empowerment, and sustainable development, striving to achieve significant increases in capacity and production of major products by 2035, with gross industrial output value up YoY, and to build itself into a 10 billion green lead-zinc comprehensive recycling technology enterprise. Mengzi Mining and Metallurgy Co., Ltd. On March 31, SMM and the field trip delegation headed to Mengzi Mining and Metallurgy Co., Ltd. for a visit and exchange. Both parties engaged in in-depth discussions on the entire zinc smelting process, covering topics including production technology, raw material supply, product sales, environmental protection governance, and future development plans, aiming to share experience, address industry pain points, and jointly clarify the direction of development. Mengzi Mining and Metallurgy Co., Ltd. was established in 1996. It is a resource-based mining and metallurgy enterprise integrating R&D, exploration, mining, mineral processing, smelting, and trading, with a focus on comprehensive utilization of resources. The company is one of the few comprehensive private enterprises in the non-ferrous metal industry that possesses an entire industry chain and operates independent trading and supply chain business platforms. It is among the top 100 enterprises in Yunnan Province and a key enterprise in Honghe Prefecture. Shenzhen Zhongjin Lingnan Nonfemet Co., Ltd. — Danxia Smelter On April 2, the SMM delegation visited Zhongjin Lingnan's Danxia Smelter for a survey and field trip to the core plant area. In-depth discussions were held on production operations, technological R&D, and raw material procurement, covering key topics such as production capacity, technical cooperation, and raw material procurement strategies. Shenzhen Zhongjin Lingnan Nonfemet Co., Ltd. (hereinafter referred to as "Zhongjin Lingnan") was established in September 1984 and listed on the Shenzhen Stock Exchange in January 1997 (stock code: 000060). It is an internationalized entire industry chain resource company primarily engaged in lead, zinc, and copper mining, mineral processing, and smelting, as well as comprehensive recovery of rare, scattered, and precious metals. It is a publicly listed firm controlled by Guangsheng Holdings Group, a key wholly state-owned enterprise under Guangdong Province. Zhongjin Lingnan's business covers segments including mines, smelting, new materials, and supply chains. It has 23 directly affiliated enterprises, wholly-owned and controlled subsidiaries. Major operating entities include Fankou Lead-Zinc Mine, Shaoguan Smelter, Danxia Smelter, Zhongjin Copper Co., Guangxi Mining Co., Perilya Limited in Australia, Zhongjin Technology Co., and Huajiari Co. The company has an annual output of 300,000 mt of lead and zinc metal content in concentrates, 450,000 mt of smelted lead and zinc products, 450,000 mt of copper cathode, 21,000 mt of aluminum extrusion, 20,000 mt of battery zinc powder, and 5,400 mt of composite metal materials. Among these, its battery zinc powder ranked first in Chinese market share, nickel-metal hydride and nickel-cadmium battery electrode sheets & plates materials ranked first in Chinese market share, and thermal bimetal ranked first in Chinese market share. The 2026 field trip brought together some global lead and zinc industry leaders for an inspiring and highly productive journey across China’s leading smelters and enterprises. The warm welcome, operational excellence, and innovative technologies on display made this event a resounding success — and we extend our deepest gratitude to all the companies and participants who made it happen. Looking ahead – Save the date for 2027: We are excited to announce that the 2027 SMM (22nd) Lead & Zinc Conference and Industry EXPO will take place from March 17–19, 2027 in Kunming, Yunnan, China . This premier event will once again bring together the global lead-zinc community for high-level networking, insight sharing, and industrial exploration. Interactive call – We want to hear from you: As we plan the field trip for the 2027 conference, we’d love your input. Which smelters or companies would you most like to visit for technical exchange and on-site learning? Please share your suggestions in the comments below — your feedback will help shape the 2027 experience. Let us know where the industry should go next!

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On June 12, at the 2025 SMM (13th) Minor Metal Industry Conference - Main Forum, hosted by Shandong Humon Smelting Co., Ltd. and SMM Information & Technology Co., Ltd., Zhao Wuzhuang, former Deputy Director of the Policy Research Office of the China Nonferrous Metals Industry Association, shared the topic of "Export Controls on Dual-Use Items" with the attendees. He stated that in the past two years, the Chinese government, in accordance with international legal documents such as the conventions on the prohibition of nuclear proliferation and weapons of mass destruction, as well as the management catalog of dual-use items established by these conventions, has introduced measures to strengthen export controls on rare and scattered metals such as indium, germanium, and gallium. As of now, China has implemented export controls on 15 nonferrous metals classified as dual-use items, including four rare and scattered metals (indium, gallium, germanium, and tellurium), four rare metals (tungsten, molybdenum, antimony, and bismuth), and seven rare earth metals (samarium, gadolinium, terbium, dysprosium, lutetium, scandium, and yttrium).