Enlarge (credit: NurPhoto / Contributor | NurPhoto) The Biden administration has proposed rules that could make it more costly for Chinese e-commerce platforms like Shein and Temu to ship goods into the US. In his announcement proposing to crack down on "unsafe, unfairly traded products," President Joe Biden accused China-founded e-commerce platforms selling cheap goods of abusing the "de minimis exemption" that makes shipments valued under $800 duty-free. Platforms taking advantage of the exemption can share less information on packages and dodge taxes.