"The outbreak of novel coronavirus pneumonia will inevitably have a comparatively huge impact on the economic system and society", Xi mentioned, although he added the consequences can be short-term and controllable.
The new coronavirus, which first emerged in the central Chinese city of Wuhan in December, has already proved to be far more widespread in China than the 2002-2003 severe acute respiratory syndrome epidemic that claimed 774 lives globally.
"We look forward to the consultation report from the FSB on addressing regulatory issues of so-called "global stablecoins" - April 2020, a report from the IMF on the macroeconomic implications including monetary sovereignty in its member countries - July 2020, and a report from the FATF on the risks to AML and CFT- July 2020".
"We have been closely watching the developments of the virus and assessing its potential effects on economic growth", a senior US Treasury official told reporters.
Journalists sit in the media middle in the course of the conference of G20 finance ministers and central lender governors in Riyadh, Saudi Arabia, February 22, 2020.
But it said the Chinese ambassador in the kingdom will instead lead a small delegation.
Le Maire said they also had to deal with the critical query of minimal taxation and the hazard of racing to the finish line on taxation issues.
"We are going to improve world danger monitoring, together with of the current outbreak of COVID-19".
Failure to reach a global deal on where and how much to tax digital giants such as Google GOOGL.O , Amazon AMZN.O or Facebook FB.O would result in many digital tax regimes emerging all over the world, France's Finance Minister said on Sunday.
For the first time there is wide consensus among the G20 members on the necessity of having a new worldwide taxation system.
The symposium will be attended by US Treasury secretary Steven Mnuchin along with a host of other financial leaders.
He added there was also consensus on a global framework for an worldwide system while urging the gathered leaders to reach a compromise solution by the end of the year.
Countries such as Japan, and worldwide institutions, including the Organisation for Economic Co-operation and Development, have been pushing for those with surpluses to spend more.
"There is a consensus to build a solution by the end of 2020", Le Maire said, noting the alternative - no agreement - would create a proliferation of different tax systems making life more hard for companies.
Ms Sitharaman held bilateral talks with her counterparts from other countries and Organisation for Economic Co-operation and Development officials on the sidelines of the G20 event.