China has vowed to optimize the layout for regional opening up, consolidate the leading role of eastern coastal areas and promote further opening up in the central, western and northeastern regions, according to a reform document released after the third plenary session of the 20th Communist Party of China (CPC) Central Committee.

The resolution of the CPC Central Committee on further deepening reform comprehensively to advance Chinese modernization also said China will implement the strategy for upgrading pilot free trade zones and accelerating the development of the Hainan Free Trade Port.

"We will work to consolidate and enhance Hong Kong's status as an international financial, shipping, and trade center, support Hong Kong and Macao in building themselves into international hubs for high-caliber talent, and improve relevant mechanisms to see the two regions playing a greater role in China's opening to the outside world," the resolution said.

The resolution also encourages cooperation between Guangdong, Hong Kong and Macao in the Greater Bay Area by promoting closer alignment of rules and mechanisms.

"We will improve relevant institutions and policies to promote economic and cultural exchanges and cooperation across the Taiwan Strait and advance integrated cross-Strait development," according to the resolution.