The northern port city of Tianjin has introduced a slew of policies aimed at boosting the value of its high-tech industry to "hundreds of billions of yuan", a senior official has said.

Clean energy, new-energy vehicles and next-generation information technology are among the sectors the city hopes to push as it accelerates industrial upgrading, according to Ni Xiangyu, Party chief of the Tianjin Binhai High-tech Industrial Development Area.

The area has released improved policies and incentives to spur development and strengthen support for private companies, he said.