Dear Client, To keep pace with the rapid development of the magnesium metal industry and the growing need for supply-demand pattern analysis, our company has deeply optimized the data model based on the SMM Magnesium Database and is now systematically upgrading and adjusting the data standards and historical data related to magnesium metal in China. The details are as follows: I. Data Standard Upgrades and Data Revision Notes Background of Adjustments With the rapid growth in demand for magnesium alloys in the downstream sector of magnesium metal, the market landscape is evolving rapidly. For instance, technological iterations in die-casting equipment, differences in the penetration rate of thick and thin magnesium alloy die-cast parts, and recycling rates, among other multidimensional factors, have a significant impact on the production of recycled magnesium. To promptly address the industry's need for supply-demand pattern analysis amid its rapid development, adjustments have been made to the data collection standards for "recycled magnesium production," "primary magnesium production," and "total magnesium metal demand," with historical data also being revised. Previous data collection did not account for the supply of recycled magnesium, which could lead to significant deviations in supply estimates. As the SMM Magnesium Database becomes increasingly comprehensive and detailed, a more robust model has been established. Adjustment Details - Data Source Upgrade: Upgraded from a single primary magnesium market supply and demand dataset to the establishment of a dual supply-demand model for magnesium metal, encompassing both primary and recycled sources. - Revision Scope: Historical data from January 1, 2023, to the present (including retrospective revisions and future forecasts). Effective Date From October 30, 2025 SMM Information & Technology Co., Ltd. SMM Magnesium Research Team Jiao Jiani 021-20707954 October 27, 2025

Respected Client, To keep pace with the rapid development of the magnesium industry and the evolving needs for supply-demand analysis, our company has optimized the data model based on the SMM Magnesium Database and is now systematically upgrading the data standards and historical data for magnesium-related metrics in China and globally. Details are as follows: Data Standards and Historical Data Adjustment Notice I. Background of Adjustment With the rapid growth of downstream magnesium alloy demand, the magnesium market landscape continues to evolve. Factors such as technological advancements in die-casting equipment, varying penetration rates of magnesium alloy die-cast parts across different thickness markets, and recycling utilization rates have significantly impacted recycled magnesium production. To better capture the effects of industry changes on supply-demand analysis, and in conjunction with SMM's further in-depth research on the proportion of magnesium added in aluminum industry processes—improving recycled magnesium recovery and utilization coefficients and revising historical data for "primary magnesium" and "magnesium powder" production—we are now adjusting and updating the following metrics in the balance sheet: "recycled magnesium supply," "primary magnesium supply," "magnesium consumption in aluminum products," and "magnesium powder production." II. Adjustment Details Data Points Revised: "Recycled Magnesium Supply," "Primary Magnesium Supply," "Magnesium Consumption in Aluminum Products," "Magnesium Powder Production." Revision Scope: Historical data from January 1, 2023, onward (including retrospective revisions and future forecasts). III. Effective Date December 12, 2025 Shanghai Metals Market Information & Technology Co., Ltd. SMM Magnesium Research Team Zhu Qifan 86-21-5166-6729 December 12, 2025

Dear User, Greetings! In recent years, the development of the secondary zinc industry has attracted significant attention however, the domestic supply of secondary zinc oxide has become increasingly tight. In contrast, Southeast Asia boasts abundant resources of secondary zinc oxide raw materials at relatively low prices, which has prompted many Chinese enterprises to establish production facilities in the region, with a considerable number choosing Vietnam. Meanwhile, amid growing uncertainties in international trade, an increasing number of companies are relocating their plants to Vietnam to achieve integrated procurement, production, and sales, gradually forming a market trend. To keep pace with the globalization of international trade and the market development of secondary zinc oxide both domestically and overseas, and to reflect the true price fluctuations of secondary zinc oxide in the global market, SMM plans to launch the CIF Imported Secondary Zinc Oxide Payable . The SMM CIF Imported Secondary Zinc Oxide Payable is an indicative price formed and published by SMM according to this methodology, which can be used by trading parties as a reference for settling secondary zinc oxide trades from Vietnam. This price reflects the mainstream price of the CIF Imported Secondary Zinc Oxide Payable​​​​​​​ for each month. The price will be officially launched on November 28, 2025, and historical prices can be viewed simultaneously on the SMM website (smm.cn). The price will be published by 18:00 on the last working day of each month. Price Definition: The mainstream transaction price of CIF Imported Secondary Zinc Oxide Payable in actual trades during the month. Going forward, SMM will continue to monitor changes in the zinc industry chain market, optimize SMM prices, and better serve the industry! For any inquiries regarding the price, please contact Zinc Analyst Hua Lin at 021-20707885 hualin@smm.cn. SMM Information & Technology Co., Ltd. Zinc Research Team November 21, 2025

With the development of the scrap metal industry, companies are paying increasing attention to scrap aluminum varieties and price points. To meet market demands and provide more comprehensive spot price information, SMM, after extensive market research and preliminary communication, plans to launch an optimized Malaysian scrap aluminum price point on October 13, 2025: - Tense Scrap Malaysia (Mixed Aluminium Castings) Introduction to the new SMM Malaysian scrap aluminum price points: SMM, taking into account the import-export and local demand characteristics of Malaysian end-users across different application scenarios, and based on overseas policies and market changes, has revised the Malaysian scrap aluminum price points. The specific details are as follows: ​ ​Adjustment 1:​ ​ Addition of Tense Scrap Malaysia (Mixed Aluminium Castings) . This price point will replace the existing Shredded Mixed Aluminum Castings (Tense) Scrap in Malaysia, FOB. - Updated price point name and definition: ​ ​Malaysia Scrap Aluminum Mixed Aluminum Castings (Tense) , EXWorks, excluding VAT, USD/tonne. - Reason: The new price point better aligns with the local scrap aluminum market conditions under updated Malaysian policies, thereby more accurately reflecting market prices. - Launch date: October 13, 2025 - Update frequency: The new price point will be updated before 12:00 PM on the first working day of each week (Kuala Lumpur time). ​ ​Adjustment 2:​ ​ Discontinuation of Shredded Mixed Aluminum Castings (Tense) Scrap in Malaysia, FOB . - Discontinuation date: October 10, 2025 We welcome more companies from both upstream and downstream industries to participate and support SMM in better serving the new energy industry chain. If you have any questions, please feel free to contact Liu Xiaolei at (+86)15021973263 or Chin Khai Yuen at (+60)124247012, or email adrian.chin@smm.cn.

Dear Users: Hello: To ensure data consistency with the source and respond to customer feedback, we have expanded the unit of zinc-related import and export data in the non-ferrous metals database to the smallest level. Core changes: Units such as "10,000 mt" and "mt" have been changed to "kg". The specific details are announced as follows: I. Reasons for Adjustment Due to the need for country-specific breakdown of imports and exports, the unit has been adjusted to the smallest value To better serve customers, SMM has expanded the import and export data related to the zinc industry chain to include all countries. This will result in the previously set units such as "mt" and "10,000 mt" being unable to match data from all countries. Therefore, SMM has changed the unit to the smallest value. II. Adjustment Details III. Effective Date of Adjustment This adjustment will take effect on August 8, 2025 SMM (Shanghai Metals Market) August 4, 2025

Dear Valued Customers, Due to an error on our part, there was a mistake in recording the SMM #0 Hu zinc prices from November 24 to November 27, 2025. We now need to correct the absolute prices as follows: - November 24: from 22,380 to 23,380 - November 25: from 22,400 to 23,400 - November 26: from 22,500 to 23,500 - November 27: from 22,550 to 23,550 We sincerely apologize for any inconvenience and disruption this may have caused and will strive to prevent such errors in our future work.

Dear users, On August 29, 2025, the State Administration for Market Regulation and the Standardization Administration of China jointly issued the "Secondary Lead Ingot (GB/T 21181-2025)" (hereinafter referred to as the "new national standard"), which will officially take effect on March 1, 2026. Compared to the "Secondary Lead and Lead Alloy Ingot (GB/T 21181-2017)" (hereinafter referred to as the "old national standard"), the new national standard revised the scope. It changed from "This standard applies to secondary lead and its alloy ingots produced by smelting and processing using lead-containing scrap as raw material, mainly used in batteries, alloys, chemical industry, and other fields" to "This document applies to secondary lead ingots produced by pyrometallurgical smelting and processing using waste lead-acid batteries and recycled lead and lead alloy materials as raw materials, mainly used in lead-acid batteries, alloys, chemical industry, and other fields." Regarding secondary lead grades, the ZSPb99.994 and ZSPb99.992 secondary lead ingot grades were deleted the ZSPb99.990, ZSPb99.986, and ZSPb99.983 secondary lead ingot grades were added. Details are as follows: With the development and changes in the secondary lead industry, the actual production and use of secondary lead in the market in recent years have already diverged significantly from the old national standard. In addition to changes in the main element lead content, the bismuth (Bi) content has also undergone substantial changes. According to SMM's understanding of major producers and users of secondary lead, the distribution by bismuth content usage is as follows: enterprises using bismuth content ≤0.008% account for about 15% those using ≤0.012% account for about 60% and those using ≤0.015% account for about 25%. Furthermore, based on its price assessment methodology, SMM solicited market suggestions on the specifications for the secondary refined lead price. Market feedback recommended that the price collection standard for SMM's secondary refined lead price reference the new national standard for secondary lead, with grade ZSPb99.99 accounting for 24%, grade ZSPb99.986 for 66%, and grade ZSPb99.983 for 10%. Considering that the current actual usage in the secondary lead market covers the three grades specified in the new national standard for secondary lead, SMM will define the specifications for the national and regional prices of secondary refined lead as ZSPb99.983-99.99%, based on real market transaction conditions. The new standard will be officially implemented from January 1, 2026, serving as the reference standard for SMM's price assessments. During this period, SMM will continue to collect suggestions and feedback from all parties, closely follow changes in the lead industry chain market, and identify and optimize SMM prices to better serve the industry! For any questions regarding prices, please contact lead analyst Wenming Xia at 021-51666839. SMM Information & Technology Co., Ltd. Lead and Zinc Research Division December 25, 2025