The 5thPublisher in Chinese, an online Chinese publishing platform founded and operated by Sophia Publishing Publishing Group, publishes journals in wide ranges of humanities, arts, behavioral and social sciences, natural sciences and technologies.

All journals published in The 5thPublisher in Chinese were designated to an ISSN by ISSN Canada and were archived at Library and Archives Canada. All articles published in the journals at the 5thPublisher in Chinese were permanently deposited in independent third-party digital repositories.

The 5thPublisher in Chinese was defined as a Fifth Estate. SPG coined The 5thPublisher in Chinese that most strongly associated with the Fifth Estate of realm to help networks individuals and organizations becoming an independent publisher to launch their favorite journals.