Core Viewpoint - Lightweight materials are essential for addressing key pain points in the humanoid robot industry, including endurance, heat dissipation, component performance, and flexibility [1][2] Lightweight Material Applications - Lightweight materials such as magnesium alloys, PEEK, and PA nylon are expected to gain popularity due to their superior characteristics [1] - Recommended stocks for lightweight applications include: - Keda Li (002850.SZ) for lightweight applications - Recommended: Zhaomin Technology (301000.SZ), Hengbo Co., Ltd. (301225.SZ) - PEEK: Recommended stocks include Zhongyan Co., Ltd. (688716.SH), Xinhang New Materials (301076.SZ), Zhongxin Fluorine Materials (002915.SZ) - PA Nylon: Recommended stock is Nanshan Zhishang (300918.SZ) - Magnesium Alloy: Recommended stock is Xusheng Group (603305.SH), with a focus on Baowu Magnesium Industry (002182.SZ) [1] Market Insights on PEEK - PEEK is at the top of the engineering plastics pyramid, with excellent mechanical properties, high heat resistance, and corrosion resistance [3] - The price of PEEK is approximately 300,000 yuan/ton in 2024, with raw material fluoroketone costing around 120,000 yuan/ton [3] - The global and Chinese PEEK market is projected to reach 6.1 billion yuan and 1.9 billion yuan respectively in 2024, with expected growth rates (CAGR) of 11% and 13% by 2027 [3] Market Insights on Magnesium Alloys - Magnesium alloys are recognized for their high strength-to-weight ratio and good ductility, with established applications in automotive lightweighting [4] - As of May, magnesium prices are low, with a magnesium-aluminum price ratio of 0.87, allowing for cost reduction while achieving lightweighting [4] - The collaboration between Baowu Magnesium Industry and Estun has led to the development of a magnesium alloy industrial robot that reduces weight by 11% and energy consumption by 10% [4] Market Insights on PA Nylon - PA6 and PA66 are well-established engineering plastics with excellent impact resistance and flexibility, with a CAGR of less than 5% from 2018 to 2023 [4] - The market for PA6 is fragmented, while PA66 is more concentrated, with the top three companies holding a 75% market share [4] Humanoid Robot Lightweighting - In humanoid robots, the joint module accounts for approximately 40% of the weight, while structural components account for about 30% [5] - PEEK is the preferred choice for harmonic reducers, with leading manufacturers already holding patents [5] - Magnesium alloys are expected to be widely used in humanoid robots, particularly in joints and shells, due to their cost-effectiveness and performance [5] - The market potential for various materials in humanoid robots is estimated at 1 billion yuan for PPS, 2 billion yuan for modified PEEK, 300 million yuan for magnesium alloys, and 300 million yuan for modified nylon [5]

Core Viewpoint - As of July 11, 2025, the stock price of Xusheng Group (603305) increased by 3.71% to 13.13 CNY, with a market capitalization of 12.517 billion CNY, ranking 39th in the automotive parts sector and 1322nd in the A-share market [1] Company Announcements - The fourth board meeting of Xusheng Group approved two resolutions: the use of up to 1 billion CNY of temporarily idle convertible bond funds for cash management, and the use of up to 500 million CNY of temporarily idle self-owned funds for cash management, both valid for 12 months [2][3] - The supervisory board also approved the same resolutions regarding the use of idle funds for cash management, with unanimous support [2][3] Cash Management Plans - Xusheng Group plans to use up to 1 billion CNY of temporarily idle convertible bond funds for cash management, with a maximum investment period of 12 months, focusing on high-safety and high-liquidity financial products [3] - The cash management will involve the company and its subsidiary, ensuring that the investment does not affect the normal implementation of fundraising projects [3]

Investment Rating - The report suggests a focus on magnesium alloy die-casting leading companies such as Baowu Magnesium and Xingyuan Zhuomai, and recommends lightweight joint component companies in humanoid robots like Xusheng Group, as well as leading engineering plastic companies such as Zhaomin Technology, Water Co., and Zhongyan Co. [2] Core Viewpoints - The trend towards lightweight humanoid robots is driven by material and process design, addressing issues like insufficient endurance, low flexibility, and poor heat dissipation. The main paths for achieving this include structural optimization, component performance enhancement, and material replacement, with magnesium alloys and high-performance engineering plastics being key materials [2][4] - Magnesium alloys offer significant advantages, including better weight reduction compared to aluminum alloys, lower costs due to sustained low raw material prices, and improved electromagnetic shielding and heat dissipation efficiency. The semi-solid process addresses corrosion resistance issues, making magnesium alloys suitable for humanoid robot components [2][21] - High-performance engineering plastics like PEEK, PPS, and PPA are gaining traction in the lightweight revolution, with PEEK being particularly notable for its applications in high-value areas such as joint bearings and gear components, indicating a potential market space in the billions [2][67] Summary by Sections 1. Lightweight Trend in Humanoid Robots - The lightweight trend is evident in various humanoid robot models, with significant weight reductions achieved while increasing height [6][8] - Lightweight solutions address critical issues such as limited endurance and flexibility, with a notable example being a 40% weight reduction leading to a 6-hour operational time [13][14] - The main paths to achieve lightweight humanoid robots include structural optimization, component replacement, and material substitution, with a focus on magnesium alloys and high-performance engineering plastics [18][19] 2. Cost Down & Technological Breakthroughs for Magnesium Alloys - The report highlights that the cost of magnesium ingots has been decreasing since 2022, making magnesium alloys more economically viable compared to aluminum [27][28] - China is a major supplier of magnesium, with a significant increase in production capacity, ensuring stable pricing and supply [27][28] - The semi-solid forming technology is identified as a future trend for magnesium alloys, improving product quality and performance [36][40] 3. High-Performance Engineering Plastics Revolution - Engineering plastics like PEEK and PPS are positioned as superior alternatives to traditional materials, with a high concentration of production among a few key players [73][89] - PEEK is noted for its exceptional mechanical properties, making it comparable to metals, and is increasingly used in various high-value applications [78][84] - PPS is recognized for its excellent chemical resistance and cost-effectiveness, further solidifying its position in the market [90]

Investment Rating - The report suggests that lightweighting is a crucial step before the commercialization of humanoid robots, with a focus on material lightweighting as the current mainstream path [2][8]. Core Insights - Lightweighting addresses several pain points in the humanoid robot industry, including endurance, heat dissipation, component performance, and flexibility [2][8]. - The report identifies two main paths for lightweighting: structural lightweighting and material lightweighting, with material lightweighting currently being the dominant approach [11][13]. - Key materials discussed include PEEK, magnesium alloys, and nylon, each with distinct advantages and market potential [2][28][46]. Summary by Sections PART1: Lightweighting - Lightweighting is essential for improving endurance, reducing component requirements, enhancing flexibility, and facilitating easier handling of humanoid robots [8][9]. - Major manufacturers like Tesla and UBTECH are actively pursuing lightweight designs to enhance robot performance [9][10]. PART2: Structural Lightweighting - Structural lightweighting involves parameter optimization, topology optimization, and integration to achieve cost-effective solutions [13][15]. - Parameter optimization is the simplest method, while topology optimization refines material distribution to maximize performance [20][22]. - Integration trends are emerging, similar to those in the electric vehicle sector, to reduce part count and enhance structural strength [24][27]. PART3: Material Lightweighting - Magnesium Alloys - Magnesium alloys are highlighted for their low density and high strength, already seeing mature applications in automotive lightweighting [29][33]. - The economic viability of magnesium alloys is increasing, with current price comparisons favoring their use over aluminum [37][40]. PART4: Material Lightweighting - PEEK - PEEK is positioned at the top of the engineering plastics pyramid, known for its excellent mechanical properties and high thermal resistance [50][68]. - The production of PEEK involves high barriers due to the complexity of its raw materials and manufacturing processes, particularly the reliance on DFBP [51][57]. - PEEK's performance is influenced by its production process, with a focus on balancing melt flow index and viscosity for optimal application [68][69]. PART5: Material Lightweighting - Nylon - Nylon, particularly PA6 and PA66, is recognized for its excellent flexibility and established applications in various systems [2][28]. - The market for nylon is stable, with a CAGR of less than 5% from 2018 to 2023, indicating mature demand [2][28]. PART6: Industry Chain Analysis - The report outlines key players in the industry, recommending specific companies for investment based on their roles in lightweighting technologies [2][28]. - Notable companies include Keda Li, Zhaomin Technology, and Xusheng Group, among others, with varying focuses on PEEK, nylon, and magnesium alloys [2][28]. PART7: Investment Recommendations - The report emphasizes the importance of lightweighting in the humanoid robot sector and suggests specific companies to watch for potential investment opportunities [2][28].

二、募集资金投资项目的基本情况 一、募集资金基本情况 根据中国证券监督管理委员会出具的《关于同意宁波旭升集团股份有限公司 向不特定对象发行可转换公司债券注册的批复》（证监许可[2024]764 号），公司 获准向不特定对象发行面值总额为人民币 280,000.00 万元的可转换公司债券，期 限 6 年。公司本次发行可转换公司债券应募集资金 280,000.00 万元，实际募集资 金 280,000.00 万元，扣除发行费用合计（不含税）人民币 833.93 万元后，实际 募集资金净额为人民币 279,166.07 万元。 上述募集资金已于 2024 年 6 月 20 日全部到位，中汇会计师事务所（特殊普 通合伙）已进行验资并出具了中汇会验[2024]8953 号《可转换公司债券募集资金 到位情况验证报告》。上述向不特定对象发行可转换公司债券募集资金，公司已 按照要求开立募集资金专户存储。 中信建投证券股份有限公司 关于宁波旭升集团股份有限公司使用部分暂时闲置可转换公司债券 募集资金进行现金管理的核查意见 中信建投证券股份有限公司（以下简称"中信建投证券"、"保荐人"）作为 宁波旭升集团股份有限公司（以下简称" ...

| 证券代码：603305 | 证券简称：旭升集团 24 转债 | 公告编号：2025-042 | | --- | --- | --- | | 债券代码：113685 | 债券简称：升 | | 宁波旭升集团股份有限公司 关于使用部分暂时闲置自有资金进行现金管理的公 告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈 述或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示： 现金管理金额：宁波旭升集团股份有限公司（以下简称"公司"）及子公 司拟使用最高额度不超过人民币 5 亿元（含 5 亿元）的闲置自有资金进行现金管 理。 现金管理受托方：具有合法经营资格的金融机构 现金管理产品名称：安全性高、流动性好、具有合法经营资格的金融机 构销售的理财产品。 现金管理投资期限：自董事会审议通过之日起 12 个月内有效。 履行的审议程序：公司于 2025 年 7 月 9 日分别召开第四届董事会第八次 会议及第四届监事会第五次会议，审议通过《关于使用部分暂时闲置自有资金进 行现金管理的议案》，该议案无需提交公司股东大会审议。 3、现金管理的额度 公司拟使用最高额度不超过人民币 ...

| 证券代码：603305 | 证券简称：旭升集团 | | | --- | --- | --- | | 债券代码：113685 | 债券简称：升 24 | 转债 | | | | 公告编号：2025-041 | 宁波旭升集团股份有限公司 关于使用部分暂时闲置可转换公司债券募集资金进 行现金管理的公告 本公司董事会及全体董事保证本公告内容不存在任何虚假记载、误导性陈 述或者重大遗漏，并对其内容的真实性、准确性和完整性承担个别及连带责任。 重要内容提示： 现金管理金额：宁波旭升集团股份有限公司（以下简称"公司"）拟使用 最高额度不超过人民币 10 亿元（含 10 亿元）的暂时闲置可转换公司债券募集资 金进行现金管理。 现金管理受托方：具有合法经营资格的金融机构 现金管理产品名称：仅限于安全性高、流动性好、单笔期限不超过 12 个月的保本型理财产品（包括但不限于保本浮动收益型理财产品、结构性存款等）。 现金管理投资期限：自董事会审议通过之日起 12 个月内有效。 履行的审议程序：公司于 2025 年 7 月 9 日分别召开第四届董事会第八次 会议及第四届监事会第五次会议，审议通过《关于使用部分暂时闲置可转换公司 债券 ...

| 证券代码：603305 | 证券简称：旭升集团 | | 公告编号：2025-040 | | --- | --- | --- | --- | | 债券代码：113685 | 债券简称：升 24 | 转债 | | 宁波旭升集团股份有限公司 单位：万元 | | | | 认购 | 产品 | | 到期赎回情况 | | | --- | --- | --- | --- | --- | --- | --- | --- | | 序 号 | 受托方名称 | 产品名称 | 金额 | 起止日 | 收益率 | 本金 | 收益 | | | | | | | | 金额 | 金额 | | 1 | 中国银行股份 有限公司宁波 | 挂钩型结构性 存款 | 20,000 | 2024/7/15- 2025/7/7 | 0.30%或 | 20,000 | 545.77 | | | 大碶支行 | | | | 2.79% | | | | 2 | 宁波银行股份 | 单位结构性存 | 10,000 | 2024/7/16- | 1.50%-2. | 10,000 | 273.10 | | | 有限公司大碶 | 款 | | | | | | | | 支行 | ...

| 证券代码：603305 | 证券简称：旭升集团 | | 公告编号：2025-044 | | --- | --- | --- | --- | | 债券代码：113685 | 债券简称：升 24 | 转债 | | 二、监事会会议审议情况 （一）审议通过《关于使用部分暂时闲置可转换公司债券募集资金进行现 金管理的议案》 与会监事认为：公司使用部分闲置可转换公司债券募集资金进行现金管理的 决策程序符合《上市公司募集资金监管规则》和《上海证券交易所上市公司 自律监管指引第 1 号——规范运作》及《募集资金管理制度》的规定，不会影 响募集资金投资项目的建设，也不存在改变或变相改变募集资金用途、损害公司 及全体股东特别是中小股东利益的情形。公司监事会同意公司在确保不影响募集 资金投资项目建设和募集资金使用的情况下，使用最高额度不超过 10 亿元（含 10 亿元）的闲置募集资金进行现金管理。 具体内容详见同日披露于上海证券交易所网站（www.sse.com.cn）及指定媒 体的《旭升集团关于使用部分暂时闲置可转换公司债券募集资金进行现金管理的 公告》（公告编号：2025-041）。 表决结果：3 票赞成，0 票反对，0 ...

| 证券代码：603305 | 证券简称：旭升集团 | | | --- | --- | --- | | 转债 债券代码：113685 | 债券简称：升 | 24 | | | | 公告编号：2025-043 | 宁波旭升集团股份有限公司 具体内容详见同日披露于上海证券交易所网站（www.sse.com.cn）及指定媒 体的《旭升集团关于使用部分暂时闲置可转换公司债券募集资金进行现金管理的 公告》（公告编号：2025-041）。 表决结果：6 票赞成，0 票反对，0 票弃权。 （二）审议通过《关于使用部分暂时闲置自有资金进行现金管理的议案》 一、董事会会议召开情况 宁波旭升集团股份有限公司（以下简称"公司"）第四届董事会第八次会议 通知于 2025 年 7 月 4 日以专人送达方式发出，会议于 2025 年 7 月 9 日在公司会 议室以现场结合通讯方式召开。本次会议应到董事 6 人，实到董事 6 人，公司董 事长徐旭东先生召集和主持本次会议，公司监事及高级管理人员列席了本次会议。 本次会议的召集和召开符合《中华人民共和国公司法》和《公司章程》的有关规 定。 二、董事会会议审议情况 （一）审议通过《关于使用部分暂 ...