Core Viewpoint - The announcement by former U.S. President Trump regarding export controls on key software to China has led to a decline in Chinese software stocks, with a strong market sentiment for "domestic substitution" in the software industry [1] Group 1: Stock Performance - Chinese software stocks collectively fell, with Kingsoft (03888) down 7.44% to HKD 33.84, ChinaSoft International (00354) down 4.75% to HKD 5.81, and Inspur Digital Enterprise (00596) down 4.94% to HKD 8.09 [1] Group 2: Market Reaction - The lack of a clear definition for "key software" in Trump's announcement has created uncertainty, and negotiations between the U.S. and China are expected to take place [1] - The sentiment for "domestic substitution" has been building since 2018, suggesting that the immediate impact on the fundamentals of Chinese software companies may be limited [1] Group 3: Future Outlook - If the export controls are implemented starting November 1, it is anticipated that Chinese industrial software, office software, and ERP software companies could benefit from the situation [1]