Update: According to the New York Times, Lacoste, along with Adidas, has pledged to stop using any suppliers from Xinjiang – See here for details.
According to the Financial Times, Lacoste is among a group of companies that is accused of buying from a Chinese vendor facing US sanctions for using forced labor from Xinjiang:
Western brands including Hugo Boss, Ralph Lauren, Brooks Brothers and Lacoste have recently taken apparel shipments from a Chinese group whose subsidiary is facing US sanctions over alleged forced labour in Xinjiang. Shipping records show one of the group’s companies dispatched large orders of men’s and women’s shirts, pullovers and jackets to big brands in the US as recently as last month.
Lacoste had not responded to this accusation at the time of publishing. See the Financial Times for more details.