对华为昇腾的限制改口

Core Viewpoint - The article discusses the recent changes in the U.S. Bureau of Industry and Security (BIS) guidelines regarding the use of Huawei Ascend chips and the implications for advanced computing chips from China, suggesting a nuanced shift in U.S. policy towards these technologies [3][4][5]. Group 1: BIS Guidelines and Huawei Ascend Chips - On May 15, BIS modified its earlier statement regarding the use of Huawei Ascend chips, changing the language from an absolute prohibition to a warning about the risks associated with using advanced computing chips from China, including specific Huawei models [3][4]. - The initial version of the statement indicated that using Huawei Ascend chips anywhere in the world violated U.S. export controls, while the revised version emphasizes the risks without asserting an outright ban [4][8]. - The guidelines clarify that Chinese companies or their overseas subsidiaries lack the capability to fully produce chips that meet specific U.S. parameters, which could lead to violations of U.S. export controls if certain American technologies are involved in their production [6][7]. Group 2: Legal Implications and Industry Impact - The guidelines are legally binding, and compliance is determined by these documents rather than public statements, which do not carry legal weight [5][6]. - The use of terms like "likely" and "may" in the guidelines indicates that while there is a risk of violating export controls, it is not an absolute certainty, depending on the specifics of the chip's development and production [7][9]. - The guidelines specifically list Huawei Ascend 910B, 910C, and 910D chips as presumptively subject to U.S. export restrictions, indicating a strong stance from the U.S. government based on prior investigations into Huawei's activities [7][8]. Group 3: Public Perception and Communication Strategy - The initial statement's absolute language could lead to public misunderstanding, suggesting that only Huawei chips are subject to U.S. sanctions, while the revised statement broadens the scope to all advanced computing chips from China [8][9]. - The change in wording reflects a strategic intent to communicate a broader risk associated with Chinese advanced computing technologies, aiming to deter both domestic and international companies from using these products [9][10].