While there will be the old discussions about global economic growth at the Hangzhou G20 summit, China plans to mix things up a little by inviting representatives from more developing countries.

"The Hangzhou summit will be the most representative of developing countries in G20 history," Foreign Minister Wang Yi told a press briefing on preparations for the meeting.

Holder of the G20 presidency this year, China plans to steer the group to invest more in development and put the matter at the top of the macro policy agenda, Wang said.

The G20 will make an action plan on implementing the 2030 Agenda for Sustainable Development and launch an initiative to support the industrialization of Africa and the least developed countries, the foreign minister said.

"China expects G20 members to help these countries industrialize in a sustainable way and reduce poverty through capacity building, investment and improving infrastructure," Wang said.

"China will host an inclusive and open summit. We have had conversations with almost all UN members, including more than 130 developing countries, and listened to their aspirations," he said.

China wants coordinated macro policy among all G20 members and robust, sustainable, balanced growth through innovation and reform, Wang said.

China expects improvements to global economic governance and international financial stability and to see revitalization of trade and investment through an open global economy.