A US tax rule called de minimis has gotten increased attention as Shein and Temu have grown. Detractors say it creates unfair competition and allows companies to bypass trade laws. Shein and Temu representatives said they support de minimis reform — as long as it's fair. As Shein and Temu grow their foothold in the US, analysts and lawmakers are paying close attention to both companies' use of a special tax rule that some say should be eliminated completely.The provision, known as "de minimis," ...