Core Viewpoint - The announcement by former President Trump regarding export controls on key software to China has led to a decline in Chinese software stocks, while also igniting strong market sentiment for "domestic substitution" within the 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 Sentiment and Expectations - The lack of a clear definition for "key software" in Trump's announcement has led to uncertainty, with expectations that negotiations between the US and China will continue [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 Implications - If the export controls are implemented as planned on November 1, it is anticipated that Chinese industrial software, office software, and ERP software companies could benefit from the situation [1]