北京市盈科律师事务所 关于 关于 《河南硅烷科技发展股份有限公司收购报告书》 之法律意见书 致：河南平煤神马首山碳材料有限公司 《河南硅烷科技发展股份有限公司收购报告书》 之法律意见书 北京市朝阳区金和东路20号院正大中心2号楼19-25层 电话：010-85199988 传真：010-85199906 邮编：100004 网站：www.yingkelawyer.com 法律意见书 北京市盈科律师事务所 北京市盈科律师事务所（以下简称"本所"）接受河南平煤神马 首山碳材料有限公司（以下简称"首山碳材"）的委托，根据《中华人 民共和国公司法》《中华人民共和国证券法》《上市公司收购管理办法》 和《公开发行证券的公司信息披露内容与格式准则第 55 号——北京证 券交易所上市公司权益变动报告书、上市公司收购报告书、要约收购报 告书、被收购公司董事会报告书》等相关法律、行政法规、规范性文件的 要求，并依据《律师事务所从事证券法律业务管理办法》和《律师事 务所证券法律业务执业规则（试行）》等有关规定，按照律师行业公 认的业务标准、道德规范和勤勉尽责精神，就首山碳材收购河南省首创 化工科技有限公司所持有的河南硅烷科技发展股 ...

Company Overview - Closing price on December 26: 9.45 yuan [1] - Total market capitalization: 3.988 billion yuan [1] - Total shares outstanding: 422 million shares [1] Financial Performance - Revenue for the first three quarters of 2024: 561 million yuan, a year-on-year decrease of 33.30% [4] - Net profit attributable to shareholders: 88.39 million yuan, a year-on-year decrease of 59.77% [4] - Net profit attributable to shareholders after deducting non-recurring gains and losses: 82.34 million yuan, a year-on-year decrease of 62.03% [4] - Third-quarter revenue: 151 million yuan, a year-on-year decrease of 48.01%, and a quarter-on-quarter decrease of 24.90% [12] - Third-quarter gross margin: 13.47%, a year-on-year decrease of 29.77 percentage points, and a quarter-on-quarter decrease of 18.85 percentage points [12] - Third-quarter net profit after deducting non-recurring gains and losses: 1.48 million yuan, a year-on-year decrease of 98.17% [12] Cost Structure - Sales expenses: 2.52 million yuan, a year-on-year increase of 9.2% [5] - Management expenses: 24.22 million yuan, a year-on-year increase of 31.7%, mainly due to increased employee compensation, depreciation, intangible asset amortization, and consulting fees [5] - R&D expenses: 18.45 million yuan, a year-on-year decrease of 19.17% [5] - Financial expenses: 6.72 million yuan, a year-on-year decrease of 39.8%, mainly due to reduced loan amounts and financing interest rates [5] - Other income: 7.99 million yuan, a year-on-year increase of 111.21%, mainly due to increased government subsidies [5] Business Impact - Approximately 65% of the company's silane gas is used in the photovoltaic industry, which has significantly impacted performance due to industry adjustments [13] - The company is actively developing new products and markets, including the certification of zone-melted polysilicon products and collaboration with Shanghai Jiao Tong University on silicon-based anode materials for lithium-ion batteries [13] Historical Financial Data - Total operating revenue (2020-2023): 511 million yuan, 721 million yuan, 953 million yuan, 1.121 billion yuan [14] - Year-on-year revenue growth (2020-2023): 38%, 41%, 32%, 18% [14] - Net profit attributable to shareholders (2020-2023): 47 million yuan, 76 million yuan, 189 million yuan, 308 million yuan [14] - Year-on-year net profit growth (2020-2023): 198%, 62%, 150%, 63% [14] - Gross margin (2020-2023): 22.7%, 24.2%, 31.9%, 39.1% [14] - ROE (2020-2023): 11.8%, 11.8%, 18.7%, 20.7% [14] - Earnings per share (2020-2023): 0.20 yuan, 0.32 yuan, 0.58 yuan, 0.95 yuan [14] - P/E ratio (2020-2023): 80, 170, 23, 17 [14] Investment Rating - No rating provided for the company [11]

| 日期 | 代码 | 简称 | 成交价 | 成交数量（股） | 买入营业部 | 卖出营业部 | | --- | --- | --- | --- | --- | --- | --- | | 2024-12- 20 | 830974 | 凯大催化 | 6.27 | 100000 | 广发证券股份有限公 司珠海九洲大道营业 | 方正证券股份有限公 司浙江分公司 | | | | | | | 部 | | | 2024-12- | | | | | 申万宏源证券有限公 | 长江证券股份有限公 | | 20 | 838402 | 硅烷科技 | 7.79 | 130000 | 司重庆余溪路证券营 | 司重庆聚贤岩证券营 | | | | | | | 业部 | 业部 | ...

Group 1: Investor Relations Activity - The company conducted a roadshow activity on December 5, 2024, in Zhengzhou, Henan Province, attended by major securities firms and funds [2] - The meeting was led by the company's board secretary, Mr. Shi Zenghui [2] Group 2: Product Quality and Production Status - The purity of the silane gas produced by the company is consistently above 6N, with a maximum purity of 8N, meeting the quality requirements for semiconductor and silicon-carbon anode manufacturers [3][4] - The annual production project of 3,500 tons of silane gas commenced trial production at the end of December 2023 and is currently in formal production, with equipment operating well and meeting design specifications [5] Group 3: Project Development and Collaborations - The company is validating its zone-melting polysilicon products and is in the certification process with clients such as TCL Zhonghuan and Beijing Jingyuntong [6] - A collaboration with Shanghai Jiao Tong University is underway to develop key technologies for silicon-based anode materials for lithium-ion batteries using silane gas [7] Group 4: Market Strategy and Future Outlook - The company is actively expanding its customer base in the emerging field of silicon-carbon anode materials, with a steady increase in supply to Tianmu Xiandao and other market players [8] - The company believes that the silane gas produced through CVD methods offers advantages in efficiency, stability, and industrial scalability, positioning it as a key supplier for silicon-carbon anode manufacturers [9] - In response to the downward pressure on silane gas prices due to adjustments in the photovoltaic industry, the company is optimizing production costs and expanding its market presence [10]

证券代码：838402 证券简称：硅烷科技 公告编号：2024-131 河南硅烷科技发展股份有限公司 投资者关系活动记录表 | --- | --- | |------------------------------------------------------------------------|-------| | | | | 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 | | | 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 | | | 带法律责任。 | | 一、 投资者关系活动类别 □特定对象调研 □业绩说明会 □媒体采访 □现场参观 □新闻发布会 □分析师会议 √路演活动 □其他 二、 投资者关系活动情况 活动时间：2024 年 12 月 5 日 活动地点：河南省郑州市 参会单位及人员：中信证券、银河证券、国泰君安、方正证券、海创基金、 朱雀基金、山西证券、华泰基金 上市公司接待人员：公司董事会秘书:石增辉先生。 三、 投资者关系活动主要内容 本次活动中投资者提出的主要问题及回复整理如下： 问题 1:公司硅烷气的纯度是多少？能否满足半导体、硅碳负极 ...

| 日期 | 代码 | 简称 | 成交价 | 成交数量（股） | 买入营业部 | 卖出营业部 | | --- | --- | --- | --- | --- | --- | --- | | 2024-11- | 832522 | 纳科诺尔 | 57.45 | 100000 | 财通证券股份有限公 | 粤开证券股份有限公 | | 25 | | | | | 司江苏分公司 | 司广东分公司 | | 2024-11- 25 | 838402 | 硅烷科技 | 9.1 | 121000 | 国泰君安证券股份有 限公司山东济南胜利 | 东兴证券股份有限公 司济南文化西路营业 | | | | | | | 大街营业部 | 部 | | 2024-11- | 839719 | 宁新新材 | 15.16 | 100000 | 国都证券股份有限公 司北京东中街证券营 | 中信建投证券股份有 限公司北京北四环东 | | 25 | | | | | | | | | | | | | 业部 | 路证券营业部 | ...

证券代码：838402 证券简称：硅烷科技 公告编号：2024-130 河南硅烷科技发展股份有限公司 投资者关系活动记录表 | --- | --- | |------------------------------------------------------------------------|-------| | | | | 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 | | | 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 | | | 带法律责任。 | | 一、 投资者关系活动类别 □特定对象调研 √业绩说明会 □媒体采访 □现场参观 □新闻发布会 □分析师会议 □路演活动 □其他 二、 投资者关系活动情况 活动时间：2024 年 11 月 21 日 活动地点：价值在线"易董价值平台"（https://www.ir-online.cn） 参会单位及人员：线上参与本次会议的全体投资者 上市公司接待人员：公司董事长：蔡前进先生；公司总经理：孟国均先生； 公司副总经理：张红钦先生；公司财务负责人：梁涌涛先生；公司董事会秘书： 石增辉先生。 三、 投资者关系 ...

Group 1: Company Overview - The company is 河南硅烷科技发展股份有限公司, with stock code 838402 and abbreviation 硅烷科技 [1] - The company guarantees the authenticity, accuracy, and completeness of the announcement content [2] Group 2: Investor Relations Activity - The investor relations activity was an earnings briefing held on November 21, 2024, via the "易董价值平台" [2] - Key attendees included the Chairman, General Manager, Vice General Manager, Financial Officer, and Board Secretary [2] Group 3: Product Applications and Market Share - Silane gas can be used to produce silicon-carbon anode materials, which are competitive in solid-state battery technology [3][4] - As of the end of 2023, silane gas sales distribution: - Photovoltaic industry: approximately 65% - Display panel industry: approximately 18% - Semiconductor and silicon-carbon anode: approximately 17% [4] Group 4: Production and Sales Updates - The annual production project of 3,500 tons of silane has commenced trial production as of December 2023 and is now officially in production [4] - The company’s silane gas production capacity is currently 6,100 tons/year, ensuring reliable supply and delivery for downstream customers [9] Group 5: Financial Performance - For the first three quarters of 2024, the company reported revenue of 561 million CNY and net profit attributable to the parent company [9] - The decline in performance is attributed to reduced prices of silane gas and hydrogen sales [7] Group 6: Future Outlook and Strategies - The company is optimistic about future growth in silane gas demand due to the increasing penetration of TOPCon technology in the photovoltaic industry and breakthroughs in silicon-carbon anode materials for lithium batteries [8] - To address price pressures on silane gas, the company is focusing on optimizing production costs and expanding market reach [8]

证券代码：838402 证券简称：硅烷科技 公告编号：2024-129 河南硅烷科技发展股份有限公司 2024 年第三季度业绩说明会预告公告 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 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 带法律责任。 一、 说明会类型 河南硅烷科技发展股份有限公司（以下简称"公司"）于 2024 年 10 月 30 日在北京证券交易所信息披露平台(www.bse.cn)披露了《2024 年三季度报告》 （公告编号：2024-124），为便于广大投资者更加全面深入地了解公司 2024 年第 三季度经营业绩、发展战略等情况，加强与投资者的沟通与交流，广泛听取投资 者的意见与建议，公司拟召开 2024 年第三季度业绩说明会。 二、 说明会召开的时间、地点 （一）会议召开时间：2024 年 11 月 21 日 10:00-11:00。 （二）会议召开地点 公司定于 2024 年 11 月 21 日（星期四）10:00-11:00 在"价值在线" （www.ir-online.cn）举办公司 2024 年第三季度业绩说明会。 三、 参加人员 ...

持股 5%以上股东减持股份结果公告 证券代码：838402 证券简称：硅烷科技 公告编号：2024-127 河南硅烷科技发展股份有限公司 本公司及董事会全体成员保证公告内容的真实、准确和完整，没有虚假记载、 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 带法律责任。 一、 减持主体减持前基本情况 | 股东名称 | 股东身份 | | 持股数量（股） | 持股比例 | 当前持股股份来源 | | --- | --- | --- | --- | --- | --- | | 张建五 | 持股 | 5%以上 | 71,859,909 | 17.0260% | 北交所上市前取得 | | | 股东 | | | | （含权益分派转增 | | | | | | | 股） | 二、 减持计划的实施结果 （一） 股东因以下原因披露减持计划实施结果： √减持计划实施完毕 □减持时间区间届满 | 减持价格 | 减 | 当前持 | | | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 区间 | 持 ...