国风新材（000859.SZ）12月11日在投资者互动平台表示，光敏聚酰亚胺（PSPI）光刻胶产品目前处于 研发阶段，未进行生产，产品的研发会按照研发进度、市场情况等综合考虑推进产业化，时间仍具有不 确定性，敬请广大投资者注意投资风险。 （文章来源：每日经济新闻） 每经AI快讯，有投资者在投资者互动平台提问：公司在面板用正性光刻胶（特别是LCD光刻胶）的研 发和产业化上，目前是否已进入下游面板厂商的验证阶段？如有，验证进展如何？ ...

Group 1: Institutional Trading Insights - On the institutional trading leaderboard, 28 stocks were listed, with 16 experiencing net buying and 13 facing net selling [1] - The top three stocks with the highest institutional buying were: Limin Co., Ltd. (75.16 million), Saiseng Pharmaceutical (71.78 million), and Haike Xinyuan (37.08 million) [1] Group 2: Stock Performance and Market Trends - Limin Co., Ltd. saw a decrease of 9.98% with a net buying amount of 105 million [2] - Saiseng Pharmaceutical experienced a significant increase of 19.97% with a net buying amount of 57.49 million [2] - Haike Xinyuan had a notable rise of 20.00% with a net buying amount of 37.09 million [2] Group 3: Industry Developments - Saiseng Pharmaceutical's subsidiary, Junyuan Pharmaceutical, produces ursodeoxycholic acid tablets, indicating a focus on relevant production capabilities [3] - The solid-state battery sector is advancing, with companies like Kexin and Taiblue New Energy developing new materials and products for battery applications [3] - The Ministry of Industry and Information Technology is expected to conduct a mid-term review of solid-state battery projects by the end of 2025, with key developments anticipated between 2025 and 2026 [3] Group 4: Market Opportunities in Advanced Packaging - The advanced packaging market is projected to grow from 30.4 billion in 2020 to approximately 47.5 billion by 2026, increasing its market share from 45% to 50% [5]