COVID-19 has brought unprecedented challenges to the global economy. News stories about job cuts and even bankruptcies have become more frequent and less shocking.

But not everyone is suffering, at least not equally. Some businesses have even flourished during the pandemic. Sales of ovens and fitness gadgets soared in China, and online tutoring became big business during the lockdown earlier this year. Watch this video to learn about these unexpected winners.

This is the fourth episode of a five-part series on the Chinese economy amid COVID-19. Find the previous episodes below, and stay tuned for the series finale.