Group 1 - The stock price of Defang Nano (300769) has shown volatility over the past week, closing at 41.18 yuan with a slight increase of 0.10% on the latest trading day. The cumulative increase over the past five days is 3.86%, while the cumulative decrease over the past twenty days is 10.71%. The stock experienced a fluctuation range of 7.13%, with significant variations in trading volume, peaking at 685 million yuan in a single day. Despite net inflows of main funds, overall market sentiment remains affected by industry competition and performance pressures [1]. Group 2 - Defang Nano responded to inquiries on its investor interaction platform regarding the progress of its collaboration with Huawei on the 4680 cylindrical solid-state battery. The company indicated that its primary customers are lithium battery manufacturers but did not confirm specific details of the collaboration. This response mitigates excessive speculation about undisclosed information while highlighting the company's relevance in cutting-edge fields such as solid-state batteries [2].