Will Farrell, the chief security officer for TikTok’s US operation, will appear before the House Select Committee on the Chinese Communist Party on September 15 to answer questions about Beijing’s influence over the app, Reuters reported.

He will be the first executive from the business recently sold to a group of US investors to testify since that ownership overhaul closed in January.

The committee, chaired by Republican John Moolenaar, intends to press Farrell on data privacy and on how much control ByteDance, TikTok’s Chinese founder, still holds over the American company.

Those questions predate every attempt to ban TikTok, and the restructuring has not settled them.

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Under the deal that President Donald Trump helped broker, ByteDance retains 19.9% of the US operation while day-to-day control passes to a new entity called TikTok USDS Joint Venture LLC.

Three managing investors sit above it: the software company Oracle, the private-equity group Silver Lake, and MGX, an Abu Dhabi investment firm, according to the terms disclosed so far.

The structure was engineered to satisfy a 2024 law that ordered ByteDance to sell TikTok or watch it go dark in the US. Roughly 170 million Americans use the app, which made a straightforward shutdown politically awkward from the outset.

That 19.9% stake was no accident either. It sits just below the 20% ownership threshold the law uses to define foreign adversary control.

The Supreme Court upheld the law in January 2025, and TikTok briefly went offline before Trump, newly back in office, issued the first of several orders pausing enforcement while a buyer was assembled.

Each extension bought a few more months, and the app stayed live throughout. The divestiture did not actually close until this January, a full year after the original deadline.

What the deal changed in practice is only partly visible. Few operational details have been disclosed, and the question of where American user data physically sits, the same one that produced a China data-transfer fight for TikTok in Europe, is precisely what Moolenaar’s committee wants answered.

Farrell sits at the centre of it. As the security officer for the US unit, he oversees the systems meant to keep American user data beyond ByteDance’s reach in China, the technical guarantee on which the entire compromise rests.

One notable absence from the September hearing is Adam Presser, TikTok’s US chief executive, who is not expected to appear.

Moolenaar had earlier said he wanted the joint venture’s leadership before the committee for a public session this year, and a chief security officer is a narrower witness than the one he described.

The Select Committee has been the loudest voice in Congress on Chinese technology, and it has spent much of the past two years arguing that ByteDance’s residual stake, however small, leaves a channel back to Beijing.

The hearing also arrives amid a wider appetite for TikTok testimony. Chuck Grassley’s Senate Judiciary Committee separately invited Shou Zi Chew, TikTok’s global chief executive, to a June hearing on children’s online safety, a different line of scrutiny from the national-security one Moolenaar is pursuing.

Between the two committees, TikTok now faces questions on both fronts within weeks of each other.

TikTok has spent years insisting that Chinese authorities cannot touch American user data, a line its executives have repeated through congressional grillings, court battles, and now a corporate reshuffle that rearranged the ownership without ending the argument.

The company has meanwhile been trimming costs elsewhere, including job losses at its Dublin hub this year, even as it spends heavily to prove the new American structure works as advertised.

Neither the company nor the committee has released Farrell’s prepared remarks, and TikTok has not detailed what documents it plans to hand over.