China just announced new tariffs of 50% on US imports, in addition to the 34% already announced. This brings their total tariff rate up to 84%.
中国刚刚宣布对美国进口产品征收 50%的新关税，这是在已宣布的 34% 关税基础上增加的。这使他们的总关税率达到 84%。

The ministry says that these new charges will take effect from 12:01 CST (04:00 BST) on 10 April.
该部表示，这些新收费将于北京时间 4 月 10 日 12:01（英国当地时间 4:00）起生效。

https://www.bbc.com/news/live/cp8vyy35g3mt?post=asset%3Aa5f6fd43-f285-4cef-8549-4b7ac5c517ef#post

edit   编辑

China added 12 U.S. companies to its export control list and 6 to its unreliable entities list
中国将 12 家美国公司列入出口管制名单，将 6 家美国公司列入不可靠实体名单

American Photonics and Novotech to its export control list, banning exports of dual-use items to them.
将 American Photonics 和 Novotech 列入出口管制清单，禁止向其出口军民两用产品。

Shield AI and Sierra Nevada Corporation were placed on the unreliable entities list, prohibiting all China-related trade and investment.
Shield AI 和 Sierra Nevada 公司被列入不可靠实体名单，禁止所有与中国有关的贸易和投资。

• Shield AI develops AI-powered autonomous systems for military drones. Sierra Nevada Corporation specializes in aerospace and defense tech.
  Shield AI 为军用无人机开发人工智能驱动的自主系统。内华达山脉公司（Sierra Nevada Corporation）专注于航空航天和国防技术。

• American Photonics makes precision CO₂ laser optics, while Novotech produces infrared optical materials. Both have dual-use applications in civilian and military sectors.
  American Photonics 生产精密 CO₂ 激光光学器件，而 Novotech 则生产红外光学材料。这两家公司在民用和军事领域都有双重用途。

This could disrupt their supply chains as they rely on Chinese components (e.g., rare earths, specialty optics).
这可能会破坏它们的供应链，因为它们依赖中国的零部件（如稀土、特种光学器件）。

https://www.reuters.com/world/china-adds-us-companies-lists-export-control-unreliable-entities-2025-04-09/

来源：https://www.reddit.com/r/stocks/comments/1jv38cl/china_to_impose_additional_import_tax_of_84_on_us/