U.S. widens tariffs — firms adapt
The U.S. has imposed a 25% tariff on certain semiconductors linked to China and is reviewing additional categories, including pharmaceuticals. A House of Commons briefing says the move widens the definition of what counts as strategic trade, and Amazon is responding by deepening its China logistics — using a Shenzhen warehousing hub to help Chinese sellers cut shipping costs and delays amid tariffs and competition from Shein and Temu. (commonslibrary.parliament.uk) (scmp.com)
Washington has widened its tariff fight with China from metals and consumer goods to chips and medicine, while Amazon is tightening its logistics ties inside China. (commonslibrary.parliament.uk) (scmp.com) A House of Commons Library briefing published April 14 says the United States imposed a 25% tariff on semiconductors from January 14, 2026, and is investigating tariffs on pharmaceuticals. The same briefing says the policy reaches beyond older tariff battles over steel, aluminium and cars. (commonslibrary.parliament.uk) The White House said in a January 2026 proclamation that imported semiconductors, chipmaking equipment and related products threaten U.S. national security because domestic capacity does not meet demand. A Federal Register notice tied to a separate Section 301 case also says the United States is preparing tariff action on semiconductors from China, with a later increase scheduled for June 23, 2027. (whitehouse.gov) (federalregister.gov) The Commons briefing says this marks a broader definition of “strategic” trade, with semiconductors and pharmaceuticals now treated more like security-sensitive sectors than ordinary imports. That shift pulls supply chains for health care and electronics into the same policy frame as defense-linked manufacturing. (commonslibrary.parliament.uk) Amazon’s response is not to leave China but to move closer to it. The South China Morning Post reported on April 17 that Amazon is using a Shenzhen warehousing hub to help Chinese sellers cut shipping costs and customs delays on goods headed to the United States. (scmp.com) A second South China Morning Post report said Amazon launched its first smart warehouse in Shenzhen this month and told merchants the model could cut storage costs by up to 45%. The same report said Amazon is trying to retain sellers as Temu and Shein intensify competition in cross-border e-commerce. (scmp.com) Amazon has been building a broader logistics pitch for merchants beyond its own marketplace. In September 2025, the company said sellers move 5 billion products a year through its logistics network, and it expanded Multi-Channel Fulfillment to support merchants selling on Shopify, Walmart and Shein. (aboutamazon.com) (press.aboutamazon.com) That leaves two tracks running at once: Washington is raising barriers around goods it now classifies as strategic, and Amazon is offering Chinese exporters more tools to route around friction. The next test is whether the pharmaceutical review produces another tariff front, or more carve-outs like the semiconductor exemptions the U.K. briefing says remain possible in current talks. (commonslibrary.parliament.uk)
