Core Viewpoint - The 2025 International Symposium on Advanced Membrane Materials and Separation Technologies aims to enhance global collaboration in membrane science, focusing on innovations and applications in various strategic industries, including environmental governance, clean energy, and biomedicine [2][3]. Group 1: Conference Overview - The conference will take place on October 10-11, 2025, in Ningbo, China, organized by the Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences [4][6]. - The event will serve as a high-level platform for experts and scholars to share the latest scientific achievements in membrane technologies [2][3]. Group 2: Conference Themes - The summit will focus on three core themes: breakthroughs in fundamental membrane research, innovations in membrane technology applications, and pathways for industrial translation [3]. - Participants will exchange insights on the latest progress and future prospects in membrane materials, processes, and applications [3]. Group 3: Conference Agenda - The agenda includes a registration opening ceremony, plenary lectures, and various presentations by distinguished professors from renowned institutions, covering topics such as lithium recovery, nanofiltration membranes, and sustainable membrane development [7][8]. - Notable speakers include Professor Rong Wang, Professor Chuyang Y. Tang, and Professor Fu Liu, each presenting their research on advanced membrane technologies [12][17][25]. Group 4: Speaker Biographies - Professor Rong Wang has over 30 years of experience in chemical and environmental engineering, focusing on water and energy-related research [12][13]. - Professor Chuyang Y. Tang is recognized for his contributions to membrane technology and has published over 400 journal papers [17]. - Professor Fu Liu leads the Advanced Functional Membrane Team at the Ningbo Institute and has published over 150 papers in various scientific journals [25][26]. Group 5: Conference Logistics - The conference will be held at the Ningbo Institute of Materials Technology and Engineering, with accommodation options provided for attendees [6][74]. - Registration details and contact information for the organizing committee are available for interested participants [78].

Company Overview - Sdiq, established on June 21, 2006, is located at No. 11 Qingdao West Road, Taicang City, Jiangsu Province, and was listed on November 25, 2019 [2] - The company specializes in the research, production, and sales of functional film materials, electronic-grade adhesive materials, thermal management composite materials, and film packaging materials [2] - The revenue composition includes: electronic-grade adhesive materials (52.07%), film packaging materials (16.77%), functional film materials (15.93%), polymer film materials (7.62%), others (6.03%), and thermal management composite materials (1.57%) [2] Stock Performance - As of September 23, Sdiq's stock price decreased by 2.06% to 27.13 CNY per share, with a total market capitalization of 12.298 billion CNY [1] - Year-to-date, Sdiq's stock price has increased by 109.66%, with a 3.55% rise in the last five trading days, 5.11% in the last 20 days, and 64.32% in the last 60 days [2] Financial Performance - For the first half of 2025, Sdiq achieved operating revenue of 1.396 billion CNY, representing a year-on-year growth of 4.45%, while the net profit attributable to shareholders decreased by 22.84% to 25.2281 million CNY [2] - The company has distributed a total of 91.199 million CNY in dividends since its A-share listing, with 32.973 million CNY distributed over the past three years [3] Shareholder Information - As of June 30, 2025, Sdiq had 17,800 shareholders, a decrease of 2.15% from the previous period, with an average of 17,750 circulating shares per shareholder, an increase of 2.19% [2] - The top ten circulating shareholders include Shenyin Wanguo New Economy Mixed A (310358) holding 6.6676 million shares, unchanged from the previous period, and Hong Kong Central Clearing Limited holding 3.2071 million shares, a decrease of 2.4778 million shares [3]

Core Viewpoint - Ruihua Tai (688323.SH) has indicated that its PI film products are being utilized in several mainstream foldable screen structures, although the revenue contribution from these products remains relatively small [1] Company Summary - Ruihua Tai's PI film products are currently applied in multiple popular foldable screen designs [1] - The revenue generated from these PI film products is not significant in the overall revenue structure of the company [1]

Core Viewpoint - The stock of Sdiq has experienced significant fluctuations, with a year-to-date increase of 98.53% and a recent decline of 2.06% on September 16, 2023, indicating volatility in investor sentiment and market conditions [1]. Company Overview - Sdiq, officially known as Jiangsu Sdiq New Materials Technology Co., Ltd., was established on June 21, 2006, and went public on November 25, 2019. The company specializes in the research, production, and sales of functional film materials, electronic-grade adhesive materials, thermal management composite materials, and film packaging materials [1]. - The revenue composition of Sdiq includes electronic-grade adhesive materials (52.07%), film packaging materials (16.77%), functional film materials (15.93%), polymer film materials (7.62%), other (6.03%), and thermal management composite materials (1.57%) [1]. Financial Performance - As of June 30, 2025, Sdiq reported a revenue of 1.396 billion yuan, reflecting a year-on-year growth of 4.45%. However, the net profit attributable to shareholders decreased by 22.84% to 25.2281 million yuan [2]. - Since its A-share listing, Sdiq has distributed a total of 91.199 million yuan in dividends, with 32.9732 million yuan distributed over the past three years [3]. Shareholder Information - As of June 30, 2025, Sdiq had 17,800 shareholders, a decrease of 2.15% from the previous period. The average number of circulating shares per person increased by 2.19% to 17,750 shares [2]. - Among the top ten circulating shareholders, Shenwan Lingshin New Economy Mixed A (310358) holds 6.6676 million shares, unchanged from the previous period, while Hong Kong Central Clearing Limited holds 3.2071 million shares, a decrease of 2.4778 million shares [3]. Market Activity - On September 16, 2023, Sdiq's stock price was 25.69 yuan per share, with a trading volume of 209 million yuan and a turnover rate of 2.53%. The total market capitalization stood at 11.645 billion yuan [1]. - The stock has shown strong performance in recent trading periods, with a 13.42% increase over the last five trading days, a 10.26% increase over the last twenty days, and a 58.58% increase over the last sixty days [1]. Industry Classification - Sdiq is classified under the Shenwan industry category of basic chemicals - plastics - film materials, and is associated with concepts such as photoresist, optics, mid-cap, specialized and innovative enterprises, and smart glasses [1].

Company Overview - Sdiq is located in Taicang, Jiangsu Province, established on June 21, 2006, and listed on November 25, 2019. The company specializes in the research, production, and sales of functional film materials, electronic-grade adhesive materials, thermal management composite materials, and film packaging materials [1]. Financial Performance - As of June 30, 2025, Sdiq achieved operating revenue of 1.396 billion yuan, representing a year-on-year growth of 4.45%. However, the net profit attributable to shareholders decreased by 22.84% to 25.2281 million yuan [2]. - The company has distributed a total of 91.199 million yuan in dividends since its A-share listing, with 32.9732 million yuan distributed over the past three years [3]. Stock Performance - On September 15, Sdiq's stock price increased by 2.07%, reaching 26.63 yuan per share, with a trading volume of 136 million yuan and a turnover rate of 1.65%. The total market capitalization is 12.071 billion yuan [1]. - Year-to-date, Sdiq's stock price has risen by 105.80%, with a 13.80% increase over the last five trading days, a 10.87% increase over the last 20 days, and a 74.28% increase over the last 60 days [1]. Shareholder Information - As of June 30, 2025, Sdiq had 17,800 shareholders, a decrease of 2.15% from the previous period. The average number of circulating shares per person increased by 2.19% to 17,750 shares [2]. - Among the top ten circulating shareholders, Shenwan Lingshin New Economy Mixed A (310358) holds 6.6676 million shares, unchanged from the previous period, while Hong Kong Central Clearing Limited holds 3.2071 million shares, a decrease of 2.4778 million shares [3]. Business Segmentation - The main business revenue composition includes electronic-grade adhesive materials (52.07%), film packaging materials (16.77%), functional film materials (15.93%), polymer film materials (7.62%), other (supplementary) (6.03%), and thermal management composite materials (1.57%) [1].

Company Overview - Zhejiang Dazhongnan Co., Ltd. is located in Zhuji City, Zhejiang Province, and was established on June 8, 2000. The company was listed on July 28, 2008. Its main business involves the research, production, and sales of plastic films and new materials [1][2]. Financial Performance - For the first half of 2025, Dazhongnan achieved operating revenue of 637 million yuan, a year-on-year decrease of 1.46%. However, the net profit attributable to the parent company was 7.94 million yuan, showing a significant year-on-year increase of 151.81% [2]. - The company has cumulatively distributed 172 million yuan in dividends since its A-share listing, with no dividends distributed in the past three years [3]. Stock Performance - As of September 11, Dazhongnan's stock price was 4.05 yuan per share, with a market capitalization of 7.607 billion yuan. The stock has increased by 63.31% year-to-date, with a 1.00% increase over the last five trading days, a 16.71% increase over the last 20 days, and a 61.35% increase over the last 60 days [1]. - The stock experienced a net outflow of 38.38 million yuan in principal funds, with large orders buying 43.94 million yuan and selling 70.42 million yuan [1]. Shareholder Information - As of August 29, the number of shareholders for Dazhongnan was 122,200, a decrease of 2.87% from the previous period. The average circulating shares per person increased by 2.96% to 15,375 shares [2]. - As of June 30, 2025, Hong Kong Central Clearing Limited exited the list of the top ten circulating shareholders [3]. Industry Context - Dazhongnan belongs to the basic chemical industry, specifically in the plastic film and membrane materials sector. The company is involved in various concept sectors, including aluminum-plastic films, lithium batteries, graphene, photovoltaic glass, and new energy vehicles [2].

Core Viewpoint - The company has established mature mass production capabilities in the high-end release film sector, with stable production and supply of related products [1] Group 1: Company Developments - The company is closely monitoring advancements in the electronic skin field and maintains technical exchanges and information communication with various parties [1] - The company will disclose any substantial cooperation progress in the electronic skin area in accordance with regulatory requirements [1]

Company Overview - NAR Co., Ltd. primarily operates in digital printing materials, automotive functional films, and electronic and optical films, contributing approximately 51%, 43%, and 6% to its main business revenue respectively [2] - The company adopts a dual-driven development strategy focusing on "new materials" and "new energy" [2] - In the new materials sector, the digital printing materials business aims to expand market share and enhance the self-supply ratio of raw materials, while automotive protective films and optical films are developed through increased R&D investment and expanded manufacturing capacity [2] - The company has also acquired Dongguan Junhong to enhance synergy and is involved in the hydrogen fuel cell industry in the new energy sector [2] Financial Performance - In the first half of 2025, NAR Co., Ltd. achieved a revenue of 972 million yuan, representing a year-on-year growth of 4.10%, and a net profit of 114 million yuan, marking a significant increase of 79.15% [2] - The growth in performance is attributed to investment gains from the sale of equity in a subsidiary and improvements in cost efficiency in the main business [2] - The gradual release of production capacity from the Jiangxi Fengcheng smart factory and the overseas factory in Thailand has alleviated capacity bottlenecks, supporting business growth [2] Automotive Protective Film Highlights - NAR's PPF brand utilizes self-developed fifth-generation hydrogen bond coating technology, offering high hardness and toughness, scratch resistance, minor scratch and deformation resistance, and self-healing capabilities [3] - The product range includes self-healing and UV-resistant types, benefiting from a partnership with Changshu Institute of Technology for research and development [3] - The brand has a strong technological reserve in functional film technology, with strict production and quality control ensuring product quality and technological advantages [3] Revenue Structure - In the first half of 2025, domestic revenue was 480.3 million yuan, while overseas revenue reached 491.8 million yuan, indicating a relatively stable revenue structure compared to 2024 [4] - The diverse customer base prevents detailed statistics on specific end customer countries [4] Competitive Advantages - In the digital printing materials sector, the company has gained customer trust through R&D innovation and comprehensive services, leading to a leading production scale and market share, with significant advantages in the supply chain [5] - The automotive functional film sector is experiencing rapid growth due to import substitution and consumption upgrades, with the company's products being utilized in both the front and rear markets of automobiles, placing it among the top tier of listed companies in terms of production and sales scale [5] Gross Margin Trends - The gross margins of different product segments have remained stable in recent years [6] - The company possesses cost transmission capabilities due to transparent raw material prices and flexible capacity adjustments, leading to expectations of relatively stable product gross margins in the future [6]

Group 1 - The company has participated in multiple aerospace and military projects, including manned space stations and launch vehicles [1] - The company is developing atomic oxygen-resistant PI films to enhance the durability of satellites and spacecraft against atomic oxygen impact, thereby extending their lifespan [1] - Due to the overall low usage of products in the aerospace sector, the related products contribute a small portion to the company's revenue [1] Group 2 - With the acceleration of the commercialization of low Earth orbit satellites, the company anticipates a significant increase in the number of satellite launches in the future [1] - The company plans to monitor market developments closely and prepare for technological research and development to respond to market demands [1] - The company aims to seize new opportunities presented by market windows [1]

Core Insights - Wharton Technology has developed a series of ultra-pure water membrane products characterized by high desalination rates, high water production, and low TOC leaching levels [1] - The company is focused on identifying high-quality targets with technological synergy and market potential, and will prudently evaluate various potential cooperation and investment opportunities based on its development plan to enhance core competitiveness and sustainable development capabilities [1]