China's President Hu Jintao left on Sunday for an official visit to Europe including a G20 summit, raising hopes the cash-rich country might make a firmer commitment to the European bailout fund.
Hu will first visit Austria to sign several "framework" agreements, including in the areas of economics and trade, before heading to the G20 meeting, the official Xinhua news agency said.
The Group of 20 major economies will meet in the French city of Cannes on Thursday and Friday, just a week after European Union leaders reached a last-ditch deal to tackle its debt crisis.
Europe is seeking to expand the European Financial Stability Facility (EFSF) to one trillion euros ($1.4 trillion), possibly through a special purpose investment vehicle or the International Monetary Fund.
But China, holder of the world's largest foreign exchange reserves at $3.2 trillion, said Friday it wants more clarity before investing in the bailout fund after Klaus Regling, head of the EFSF, held talks in Beijing to try to win help.
China's Vice Foreign Minister Cui Tiankai said Friday that the G20 should focus on the sovereign debt crisis in "developed countries" and the growing pressure of global inflation.
He added members should make efforts to stabilise financial markets and restore investor confidence.
However, another Chinese official has played down hopes of a breakthrough at the G20 meeting. Vice Finance Minister Zhu Guangyao, also speaking Friday, said investment in the European bailout fund was not on the agenda.
Meanwhile, G20 partners will also be looking to China to stimulate domestic demand, diversify its export-led economic model and allow the yuan currency to appreciate more freely so as to slim down its massive trade surpluses.