Starting June 1 China will begin implementing security reviews on foreign and domestic technology suppliers, in conjunction with the country's new cybersecurity law directed at tightening state control over technology and information, the Wall Street Journal reports.

The review will apply to firms providing network products and services, including companies like IBM (IBM) - Get Report and Microsoft (MSFT) - Get Report which sell hardware and software in China.

Foreign companies providing equipment or services to Chinese enterprises in sectors including energy, transportation, and finance, as well as those selling to government agencies, public services, and other "critical infrastructure" are also subject to the measure. 

The checks are being implemented to ensure technology is "secure and controllable," the Cyberspace Administration of China said.