A high-stakes standoff between the U.S. government and social media app TikTok over a potential ban is set for a reckoning on Thursday when TikTok CEO Shou Zi Chew testifies before a committee of House lawmakers.

US lawmakers are set to grill TikTok's chief executive on Thursday, in a wide-ranging hearing that could not come at a more consequential moment for the embattled social media platform.

TikTok's chief executive will face tough questions from lawmakers on Thursday who are convinced the Chinese-owned short video app should be barred for being a potential national security threat to the United States.

Chinese-owned short video app TikTok faces a "pivotal moment" as a growing number of U.S. lawmakers seek to ban the popular app over national security concerns, CEO Shou Zi Chew said.Chew said in a video posted on TikTok early on Tuesday that the app now has more than 150 million active monthly U.