Group 1 - The company, JieJie Microelectronics (300623), issued a correction on December 15 regarding an error in the announcement of the early termination of share reduction plans by its directors and senior management, which was initially disclosed on December 12 [1] - The error was due to a staff oversight, where the deadline for the share reduction was incorrectly stated as January 9, 2025, instead of the correct date of January 9, 2026 [1] Group 2 - JieJie Microelectronics specializes in the research, design, production, and sales of power semiconductor chips and devices, operating primarily under an IDM (Integrated Device Manufacturer) business model [3] - The company’s Secretary, Zhang Jiaquan, has a background in equipment installation and testing, having worked at Nanjing Panda (600775) and has been with JieJie Microelectronics since August 2009 [3] - Zhang Jiaquan is related to other key company figures, with familial ties to Director Zhang Zulai, a co-founder of the company, and Vice President Shen Weiqun [3]

证券代码：300623 证券简称：捷捷微电 公告编号：2025-067 江苏捷捷微电子股份有限公司 关于公司为子公司提供担保的进展公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚 假记载、误导性陈述或重大遗漏。 一、担保情况概述 江苏捷捷微电子股份有限公司（以下简称"公司"或"捷捷微电"）于 2025 年 4 月 15 日召开了第五届董事会第二十一次会议、第五届监事会第十七次会议、 于 2025 年 5 月 7 日召开 2024 年度股东大会，会议审议通过了《关于公司及子公 司向银行申请授信额度及公司为子公司提供担保的议案》，同意公司、各子公司 向银行申请集团授信总额不超过 30 亿元（授信额度不等于公司及各子公司的实 际使用金额，均以公司实际使用金额为准），授权有效期自公司 2024 年度股东大 会审议通过之日起 12 个月内有效。具体内容详见公司于 2025 年 4 月 16 日、2025 年 5 月 7 日刊登在中国证监会指定的创业板信息披露网站巨潮资讯网 （www.cninfo.com.cn）的相关公告。 二、担保的进展情况 近期，公司（作为保证人）与中国工商银行股份有限公司启东 ...

江苏捷捷微电子股份有限公司 关于公司董事、高级管理人员、时任监事 股份减持计划提前终止的公告 公司董事张祖蕾先生、黎重林先生、颜呈祥先生、时任监事沈志鹏先生、高 级管理人员徐洋先生保证向本公司提供的信息内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 本公司及董事会全体成员保证公告内容与信息披露义务人提供的信息一致。 证券代码：300623 证券简称：捷捷微电 公告编号：2025-065 公司时任监事沈志鹏先生计划自本减持计划公告之日起 15 个交易日后的 3 个月内（即 2025 年 10 月 10 日起至 2026 年 1 月 9 日止）以集中竞价方式减持公司股份不超过 5,925 股，占公司总股本比例 0.0007%。 公司高级管理人员徐洋先生计划自本减持计划公告之日起 15 个交易日后的 3 个月内 （即2025年10月10日起至2026年1月9日止）以集中竞价方式减持公司股份不超过21,400 股，占公司总股本比例 0.0026%。 计算股份比例时，按照公司当前总股本 832,079,919 股计算，本公告涉及的持股比例 均按此标准计算。 江苏捷捷微电子股份有限公司（以下简称"公司"）于 ...

公司董事张祖蕾先生、黎重林先生、颜呈祥先生、时任监事沈志鹏先生、高 级管理人员徐洋先生保证向本公司提供的信息内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 证券代码：300623 证券简称：捷捷微电 公告编号：2025-066 江苏捷捷微电子股份有限公司 关于公司董事、高级管理人员、时任监事股份减持计划提前 终止公告的更正公告 本公司及董事会全体成员保证公告内容与信息披露义务人提供的信息一致。 江苏捷捷微电子股份有限公司（以下简称"公司"）于 2025 年 12 月 12 日 披露了《关于公司董事、高级管理人员、时任监事股份减持计划提前终止的公告》 （公告编号：2025-065）。因工作人员疏忽，导致日期数据错误，现对公告内容 更正如下： 更正前： 公司董事张祖蕾先生计划自减持计划公告披露之日起 15 个交易日之后的 3 个月内（即 2025 年 10 月 10 日至 2025 年 1 月 9 日）以集中竞价方式减持公司股 份不超过 5,293,224 股，占公司总股本比例 0.6361%。 公司董事黎重林先生计划自减持计划公告披露之日起 15 个交易日之后的 3 个月内（即 2025 年 10 ...

证券代码：300623 证券简称：捷捷微电 公告编号：2025-065 股份减持计划提前终止的公告 江苏捷捷微电子股份有限公司 关于公司董事、高级管理人员、时任监事 公司董事张祖蕾先生、黎重林先生、颜呈祥先生、时任监事沈志鹏先生、高 级管理人员徐洋先生保证向本公司提供的信息内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 本公司及董事会全体成员保证公告内容与信息披露义务人提供的信息一致。 江苏捷捷微电子股份有限公司（以下简称"公司"）于 2025 年 9 月 5 日在巨潮资讯网 （www.cninfo.com.cn）披露了《关于公司董事、监事、高级管理人员股份减持计划的预披 露公告》（公告编号：2025-050）。 公司董事张祖蕾先生计划自减持计划公告披露之日起 15 个交易日之后的 3 个月内（即 2025 年 10 月 10 日至 2025 年 1 月 9 日）以集中竞价方式减持公司股份不超过 5,293,224 股，占公司总股本比例 0.6361%。 公司董事黎重林先生计划自减持计划公告披露之日起 15 个交易日之后的 3 个月内（即 2025 年 10 月 10 日至 2025 年 1 月 ...

Core Viewpoint - As of December 10, 2025, the total number of shareholders for JieJie Microelectronics (300623) is reported to be 87,970 (excluding margin accounts) [1] Group 1 - The company has engaged with investors through an interactive platform [1] - The shareholder count indicates a significant level of investor interest and participation in the company [1]

Core Viewpoint - The company, JieJie Microelectronics (300623), has provided updates on its patent holdings and product development in response to investor inquiries, indicating ongoing research in GaN and SiC technologies. Group 1: Patent Holdings - The company currently holds 5 invention patents and 5 utility model patents related to Gallium Nitride (GaN) and Silicon Carbide (SiC) [1] - Additionally, there are 7 invention patents and 2 utility model patents that are still under application [1] Group 2: Product Development - The company has a small quantity of SiC devices undergoing packaging and testing, with this product line still in the research and development phase and not yet in mass production [1] Group 3: Operational Status - The company's production, sales, and operations are reported to be normal, despite fluctuations in the secondary market stock prices [1]

Core Insights - The high-purity indium industry in China has experienced rapid growth, becoming a crucial support for semiconductor materials, photovoltaic industries, and electronic device manufacturing. However, in 2023, the market faced a significant downturn due to a deep destocking cycle in the semiconductor market and a persistent slump in the consumer electronics market, leading to a 25% year-on-year decline in market size. A recovery is expected in 2024, with the market size projected to reach 2 billion yuan, a 6% increase year-on-year. The industry is anticipated to continue growing, driven by high-end manufacturing and the expansion of the new energy sector, particularly in semiconductor materials as reliance on high-purity indium increases with advancements in 5G communication, artificial intelligence, and data center construction [1][6]. Industry Overview - High-purity indium is a silver-white metal material purified through processes such as electrolysis, chemical cleaning, and vacuum distillation, achieving purity levels from 5N (99.999%) to 7N8 (99.999998%). It is primarily used in the preparation of III-V semiconductor compounds like indium phosphide (InP) and indium antimonide (InSb), as well as in ITO targets and high-purity alloys. The main production methods include electrolysis, vacuum distillation, zone melting, metal-organic compound methods, and low-halogen compound methods [2][3]. Industry Chain - The upstream raw materials for the high-purity indium industry include primary indium and recycled indium. Primary indium is mostly a byproduct of zinc mining, with China being rich in zinc reserves, particularly in Yunnan, Guangxi, and Hunan. Recycled indium is becoming increasingly important due to stricter environmental policies and tight primary indium supply, with secondary resources like waste ITO targets and liquid crystal panel dismantling waste becoming key supplements. The midstream refers to the high-purity indium industry, while the downstream includes applications in semiconductors, electronics, and new energy sectors [4][5]. Market Size and Trends - China is the largest producer of primary indium, holding 72% of the global reserves. In 2024, the production of primary indium in China is expected to reach 688 tons, a 6.5% year-on-year increase. This growth in primary indium production will ensure a stable supply of raw materials for high-purity indium production. The semiconductor industry, which has strict purity requirements, is projected to grow significantly, with the Chinese semiconductor market expected to reach $630.5 billion in 2024, a 43% increase from $440.4 billion in 2020 [5][6]. Competitive Landscape - The competitive landscape shows that overseas markets for high-purity indium and its oxides have advanced technology and established companies like Dowa and Rasa. In contrast, China's high-purity indium industry has been developing rapidly in recent years, with companies like Zhuzhou Keno New Materials Co., Ltd., Yunnan Tin Company Limited, and Henan Yuguang Gold and Lead Co., Ltd. making significant strides [6][7]. Development Trends 1. Recycled indium is becoming a critical support for supply, with the domestic recycled indium production accounting for about 30% of the total. The market share of recycled indium is expected to continue increasing, with companies focusing on improving recovery technologies for waste materials [10]. 2. The industry concentration is expected to rise, with smaller companies facing challenges due to outdated technology and increasing environmental costs. Leading companies are expanding capacity and securing stable raw material supplies through investments in overseas mines and long-term supply agreements [11][12]. 3. Domestic companies are advancing in high-purity indium production, particularly in the 7N grade, which has historically been dominated by Japanese and Korean firms. With government support and increased R&D investment, companies are expected to overcome key technological barriers and promote green processes to enhance purity stability while reducing energy consumption and emissions [13].

Core Viewpoint - The company, JieJie Microelectronics (300623.SZ), has a diverse and extensive customer base in various application fields, indicating strong market presence and potential for growth in the MOSFET and protection device sectors, particularly in robotics [1] Group 1 - The company has numerous and dispersed downstream customers [1] - The application fields for the company's products are wide-ranging [1] - The MOSFET and protection device products can be utilized in the robotics sector [1]

Group 1 - The core point of the article is that JieJie Microelectronics (300623) reported the total number of shareholders as of November 28, 2025, which stands at 87,970 (excluding margin accounts) [1]