This FT article link does not appear to be paywalled:
US targets trade loophole used by ecommerce groups Temu and Shein
https://www.ft.com/content/2f07510b-d2c6-4bae-bae3-aa5dfa8bd796
The US said the number of shipments entering the country via the de minimis rule had jumped from about 140mn a year a decade ago to more than 1bn a year today. Officials said the vast number of parcels made it harder to block shipments of faulty products and illegal drugs like fentanyl.
The new US rules aim to ensure products that ship direct-to-consumer cannot avoid the higher duties, which the WH said covered 40 per cent of imports from China, including 70 per cent of textiles.