On May 15, 2019 (US Eastern Time), the US Department of Commerce added Huawei and 70 subsidiaries to the Entity List; HiSilicon president He Tingbo subsequently sent an internal letter saying that the "backup" had "become primary."
Evidence EVIDENCE
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中美对标
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自由亚洲电台：华为产品三成零件靠美国进口 制裁将造成长远重大影响
2026-10-06 16:12 · 其后，商务部宣布将华为公司及其70家子公司纳入出口管制“实体名单”，这意味着美国公司不能销售或转移技术或产品给华为公司。
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Context CONTEXT
Cause
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This event
US Places Huawei on Entity List
2019.05.15 · Reported
Effect
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Coverage of this event COVERAGE