Authorities also want to maintain free speech for Internet users, but Ren indicated there would be limits. "I think people want to hear constructive comments, not personal attacks or a diatribe," he said.
China has often been mum on why certain sites are blocked, or how it manages its online censorship, and Ren declined to offer details. However, covering topics such as China's governing systems or matters that threaten the country's stability will require companies and websites to follow regulations, he said.
"We of course welcome Facebook-like sites to come to China, but they must follow the relevant laws," he added.