Group 1 - The A-share market for storage chip stocks has shown strong performance, with companies like Puran Co. hitting a 20% limit up, and others such as Hengshuo Co. and Jucheng Co. rising over 13% [1] - Notably, companies like Puran Co., Zhaoyi Innovation, Anji Technology, and others have reached historical highs [1] - According to a TrendForce research report, NAND flash memory chip contract prices are expected to increase by 33%-38% in March, while traditional DRAM contract prices are projected to rise by 55%-60%, indicating strong growth momentum in the memory chip market this year [1] Group 2 - The table lists various companies with their stock performance, including Puran Co. with a market cap of 29 billion and a year-to-date increase of 54.24% [2] - Hengshuo Co. has a market cap of 6.592 billion and a year-to-date increase of 44.06% [2] - Jucheng Co. has a market cap of 24.5 billion and a year-to-date increase of 23.43% [2]

Group 1 - The company has received 9 utility model patent certificates and 2 trademark registration certificates from the National Intellectual Property Administration, focusing on its new energy business [1][2] - The acquisition of these patents is not expected to have a significant immediate impact on the company's operations but will enhance its intellectual property protection and competitive advantage [1] - The company has a total of 388 intellectual property rights, including patents, integrated circuit layout design registrations, computer software copyrights, and trademark registrations [2]

证券代码：002213 证券简称：大为股份 公告编号：2025-074 深圳市大为创新科技股份有限公司 关于取得专利证书及商标注册证书的公告 本公司及董事会全体成员保证信息披露内容的真实、准确和完整，没有 虚假记载、误导性陈述或重大遗漏。 上述专利所涉及的技术及应用领域为公司新能源业务。上述专利的取得暂不 会对公司近期的生产经营产生重大影响，但有利于充分发挥公司自主知识产权优 势，进一步完善公司的知识产权保护体系，提升公司的竞争力。 以上商标的取得，不会对公司的生产经营产生重大影响，但有利于加强公司 注册商标的保护，防止有关商标侵权事件的发生，有利于提高公司品牌和市场知 名度。 截至本公告披露日，公司获得专利证书、集成电路布图设计登记证书、计算 机软件著作权登记证书、商标注册证书共计 388 项。 特此公告。 深圳市大为创新科技股份有限公司 董 事 会 深圳市大为创新科技股份有限公司（以下简称"公司"）及子公司收到国家 知识产权局颁发的 9 项《实用新型专利证书》、2 项《商标注册证书》。具体情 况如下： 一、专利证书情况 | 序号 | 专利类型 | 专利名称 | 专利号 | | 专利申请日 | | | 授权 ...

Core Viewpoint - The A-share market for lithium mining stocks has strengthened, with significant price increases observed in various companies, driven by optimistic market sentiment regarding future demand for lithium carbonate [1] Group 1: Market Performance - Yongxing Materials saw a rise of over 7%, while Cangge Mining and Dazhong Mining increased by over 4% [1] - Other companies such as Defang Nano, Guocheng Mining, Zhongmin Resources, Hainan Mining, Jinyuan Co., and Xibu Mining experienced gains of over 3% [1] - Notably, Cangge Mining and Zhongmin Resources reached historical highs [1] Group 2: Lithium Carbonate Market - The main contract for lithium carbonate surged past 130,000, with an intraday increase of over 8%, marking a new high since November 2023 [1] - Analysts express optimism about the future demand in the lithium carbonate spot market, contributing to the ongoing rise in lithium prices [1] Group 3: Investor Activity - There is a noticeable increase in participation from various investors, with a significant rise in capital flow [1] - The recent strong performance of lithium carbonate futures has attracted more traders, particularly those with capital exceeding 100,000 [1] - Industrial clients have entered the market early for hedging purposes, which may lead to increased margin requirements and higher open interest in the main contracts [1]

Core Viewpoint - Dawi Co., Ltd. announced that its subsidiary, Shenzhen Dawi Chuangxin Technology Co., Ltd., has received four utility model patent certificates from the National Intellectual Property Administration of China [1] Group 1 - Dawi Co., Ltd. is actively expanding its intellectual property portfolio through the acquisition of new patents [1] - The newly granted patents are expected to enhance the company's competitive edge in the technology sector [1] - This development reflects the company's commitment to innovation and technological advancement [1]

Group 1 - The core point of the article is that Dawi Co., Ltd. has received four utility model patent certificates from the National Intellectual Property Administration, indicating advancements in semiconductor testing technology [1] - Dawi Co., Ltd. reported that its revenue composition for the first half of 2025 is as follows: 92.16% from semiconductor storage chips, 4.92% from the automotive manufacturing sector, 1.37% from new energy, 0.86% from real estate leasing services, and 0.68% from smart terminals [1] - As of the report, Dawi Co., Ltd. has a market capitalization of 6.4 billion yuan [1]

上述实用新型专利所涉及的技术及应用领域为公司半导体存储业务。上述专 利的取得暂不会对公司近期的生产经营产生重大影响，但有利于充分发挥公司自 主知识产权优势，进一步完善公司的知识产权保护体系，提升公司的竞争力。 深圳市大为创新科技股份有限公司 关于取得专利证书的公告 本公司及董事会全体成员保证信息披露内容的真实、准确和完整，没有 虚假记载、误导性陈述或重大遗漏。 证券代码：002213 证券简称：大为股份 公告编号：2025-073 深圳市大为创新科技股份有限公司（以下简称"公司"）子公司深圳市大为 创芯微电子科技有限公司收到国家知识产权局颁发的 4 项《实用新型专利证书》。 具体情况如下： | 序号 | 专利类型 | 专利名称 | 专利号 | 专利申请日 | 授权公告日 | 专利权人 | | --- | --- | --- | --- | --- | --- | --- | | 1 | 实用新型专 利 | 一种存储芯片 测试治具 | ZL 2024 2 1581352.6 | 年 月 日 2024 7 5 | 年 月 2025 5 16 | 深圳市大为创 日 芯微电子科技 | | | | | | | | 有限 ...

Group 1 - The storage chip sector showed active performance on December 24, with notable gains from several companies [1] - Shannon Semiconductor surged over 10%, while Space Technology increased by more than 7% [1] - Other companies such as Demingli, Shengo Co., Puran Co., Beijing Junzheng, Jiangbolong, Dawi Co., and Wanrun Technology also experienced upward movement [1]

证券日报网讯12月23日，大为股份（002213）在互动平台回答投资者提问时表示，公司主营业务为"半 导体存储+智能终端"和"新能源+汽车"两大业务。公司全资子公司深圳市大为创芯微电子科技有限公司 主要产品有NAND、DRAM存储两大系列，可广泛应用于个人电脑、车载、IDC、工业控制、医疗、轨 道交通、智能电子等领域。公司目前业务暂不涉及液冷、无人驾驶领域。 ...

格隆汇12月23日丨大为股份(002213.SZ)在投资者互动平台表示，公司主营业务为"半导体存储+智能终 端"和"新能源+汽车"两大业务。公司全资子公司深圳市大为创芯微电子科技有限公司（以下简称"大为 创芯"）主要产品有NAND、DRAM存储两大系列，可广泛应用于个人电脑、车载、IDC、工业控制、 医疗、轨道交通、智能电子等领域。 ...