84%！中国对美反制今日生效；稳股市，北京、广东、江苏、山东、四川齐出手……盘前重要消息一览

Group 1: Tariff Adjustments and Trade Relations - The State Council Tariff Commission announced an increase in tariffs on imports from the U.S., raising the rate from 34% to 84% effective April 10, 2025 [2][3] - The Chinese government views the U.S. tariff escalation as a violation of multilateral trade rules and plans to file a lawsuit with the WTO against the U.S. for imposing an additional 50% tariff on Chinese products [3] - The Chinese Ministry of Commerce has added 12 U.S. entities to an export control list due to national security concerns, prohibiting the export of dual-use items to these entities [4] Group 2: Company Actions and Market Responses - CITIC Group plans to invest 1.2 billion yuan in Longping High-tech to support breeding research and industry integration [14] - Several companies, including Weichai Power and Songshan Lake, have announced share buybacks ranging from 500 million to 2 billion yuan to enhance shareholder value [14][16] - Ganfeng Lithium and Sanan Optoelectronics are also planning share repurchases, indicating a trend among companies to stabilize their stock prices amid market fluctuations [15][16] Group 3: Economic Outlook and Market Sentiment - Analysts from Fangzheng Securities predict an influx of incremental capital into the A-share market in 2025, driven by state-owned capital increases and corporate buybacks [26] - Huajin Securities anticipates a rebound in the A-share market, focusing on sectors such as military, consumer goods, infrastructure, and technology [27]