The order throws a wrench in the business models of China-based retailers like Shein and Temu, which were previously exempt from any tariffs and customs inspections thanks to the de minimis loophole.

Boasting an enormous selection of ultra-cheap items at a time when inflation has shrunk household spending power almost everywhere, Shein and Temu have become a global phenomenon.

That includes Shein and Temu, who have employed wildly different strategies on logistics and infrastructure. Experts contend that, with the changes coming from by the Trump administration ...