The move will likely have an impact on e-commerce platforms like Shein and Temu, along with operators of drop shipping businesses.

The move was announced Tuesday, coming after the U.S. imposed an additional 10% tariff on Chinese goods and ended a customs exception that allowed small value parcels to enter the U.S. without paying tax. Canada and Mexico managed to negotiate a month-long reprieve from 25% tariffs threatened by U.S. President Donald Trump.

Yes, this change will likely affect online shopping sites like Shein and Temu, which are popular among young U.S. shoppers for their cheap products. These are companies that ship directly from China and rely on affordable postal services to keep prices low.