China Notifies Firms of Tougher Investment Rules for Big Tech

SINGAPORE—China has notified some companies of new rules that require the country’s biggest internet firms to seek approval for investment deals, a mechanism that is likely to curb domestic technology giants from growing even bigger through acquisitions, according to people familiar with the issue.

The country’s top internet regulator, the Cyberspace Administration of China, recently established a new mechanism that requires internet companies to obtain formal approval for investment deals if they have 100 million users or more or have posted revenue in the previous year of at least 10 billion yuan, equivalent to $1.57 billion, the people said.