The fate of popular social media app TikTok in the United States could hinge on the testimony of Chief Executive Shou Zi Chew before the House Committee on Energy and Commerce on Thursday.

Chew will speak before Congress for the first time amid a renewed push to block the app in the United States over concerns its Beijing-based parent company ByteDance could be compelled to share data on U.S. users with Chinese authorities. The Biden administration recently issued ByteDance an ultimatum: sell TikTok or face a nationwide ban.