BEIJING — China’s securities regulator is weighing tighter rules for companies seeking to list in Hong Kong or overseas, a move that could hit technology firms already smarting from months of clampdowns, according to people familiar with the matter.

The China Securities Regulatory Commission (CSRC) is considering proposals that would require firms seeking initial public offerings (IPOs) outside mainland China to submit listing documents to ensure they’re compliant with local laws and regulations, the people said.

The scrutiny would also seek to prevent any leaks of sensitive data that might be of national security interest, the people added, requesting they not be identified as the matter is private.

The discussions are preliminary and could be subject to change.

—