董秘参加券商交流会违规透露产能及业绩情况，光华科技收警示函

Core Points - The China Securities Regulatory Commission (CSRC) issued a warning letter to Guanghua Technology on October 21 for disclosing non-public information during an online meeting with analysts [1] - The company's secretary revealed details about lithium sulfide production capacity and expected performance for 2024, which could significantly impact stock trading prices [1] - Guanghua Technology failed to disclose this information in a timely manner, only releasing a clarification announcement on December 6 after the information was circulated online [1] - As of October 21, Guanghua Technology's stock closed at 21.29 yuan, reflecting a year-to-date increase of 28.8% [1]