Can TikTok’s new CEO save Gen Z’s favourite app in the US? Singapore’s Shou Zi Chew graduated from Harvard, interned at Facebook and worked for Xiaomi

• His predecessor Kevin Mayer stepped down after Donald Trump labelled TikTok a US security risk – will Chew be able to save Gen Z’s beloved media-sharing app?
• ByteDance founder Zhang Yiming has no doubts about the incoming CEO, saying that Chew and new COO Vanessa Pappas ‘set the stage for sustained growth’