ByteDance, TikTok’s parent company, is required to sell the app to a U.S.-based buyer or face a nationwide ban.

Chinese merchants on TikTok are taking precautionary measures to prepare for a looming ban of the short-video app in the United States, including switching to competing platforms and focusing on other overseas markets.

TikTok said the app will have to “go dark” in the United States on Sunday barring a last-minute intervention from the Biden administration to halt enforcement of a federal ban.