eunice yun takes a look. >> he's been selling $1400 on temu and shein, but now -- the business modelell at super bargain prices to americans thanks in part to the new way these models connect chinese factories to u.s. consumers by shipping small packages directly from china. >> this manufacturer is one of the many in china supplied to shein and temu at the very low priced end of the e-commerce market in the u.s. >> one reason this worked, they were able to slip in, nearly duty and scrutiny-free under an $800 value exemption, but the biden administration is introducing a rule to shut it down. >> without the exemption, the costs will be higher, he says. products might have to be priced for temu closer to amazon. yin says he can sell a $3 pill box at five bucks because temu offers to pay all of the logistics cost once his item arrives at a company warehouse in china. fellow seller jackie wu who sells on temu and shein, it sells for 42% more on amazon. with amazon, i also have to pay for logistics, advertising, operations and storage, he says. both shein and temu say their growth doesn't