A China yuan note is seen in this illustration photo May 31, 2017. REUTERS/Thomas White/Illustration

A man wearing a mask walks past the headquarters of the People's Bank of China, the central bank, in Beijing, China, as the country is hit by an outbreak of the new coronavirus, February 3, 2020. REUTERS/Jason Lee

A woman wears a face mask as she walks in the Tai Koo Li shopping center, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

People wear face masks as they walk in the Tai Koo Li shopping center, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

Shoppers wear face masks as they look at clothes in a mall, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

Workers stand outside a construction site, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

People wear face masks as they walk in front of the skyline of the Central Business District, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

People line up to buy takeaway food, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

A delivery driver rides past the Tai Koo Li shopping center, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

A man stands on a balcony of the Tai Koo Li shopping center, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

A staff member arranges clothes on a mannequin in a boutique at the Tai Koo Li shopping center, following the outbreak of the coronavirus disease (COVID-19), in Beijing, China December 4, 2020. REUTERS/Thomas Peter

Frozen fish is seen at the seafood section of a supermarket following the coronavirus disease (COVID-19) outbreak in Beijing, China November 26, 2020. Picture taken November 26, 2020. REUTERS/Florence Lo

Workers transport frozen meat products on a truck at a wholesale market for frozen food, following the coronavirus disease (COVID-19) outbreak in Beijing, China November 26, 2020. Picture taken November 26, 2020. REUTERS/Florence Lo

Supporters hold signs outside a court before Zhou Xiaoxuan, also known by her online name Xianzi, arrives for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

Supporters hold #MeToo signs outside a court before Zhou Xiaoxuan, also known by her online name Xianzi, arrives for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

A supporter holds a #MeToo sign outside a court before Zhou Xiaoxuan, also known by her online name Xianzi, arrives for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

Supporters hold #MeToo and other signs outside a court before Zhou Xiaoxuan, also known by her online name Xianzi, arrives for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

Zhou Xiaoxuan, also known by her online name Xianzi, speaks outside a court as she arrives for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

Zhou Xiaoxuan, also known by her online name Xianzi, gestures to supporters as she arrives at a court for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

Zhou Xiaoxuan, also known by her online name Xianzi, weeps as she arrives at a court for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

Zhou Xiaoxuan, also known by her online name Xianzi, waves as she enters a court for a sexual harassment case involving a Chinese state TV host, in Beijing, China December 2, 2020. REUTERS/Florence Lo

Staff arrange jars of different types of Chinese style pickled vegetables, or Pao Cai, at a specialty supermarket, in Beijing, China December 1, 2020. REUTERS/Thomas Peter

Korean style pickled cabbage, or Kimchi, and Chinese style pickled vegetables, or Pao Cai, are seen at a supermarket, in Beijing, China December 1, 2020. REUTERS/Thomas Peter

A member of staff arranges jars of different types of Chinese style pickled vegetables, or Pao Cai, at a specialty supermarket, in Beijing, China December 1, 2020. REUTERS/Thomas Peter

A man wearing a face mask walks past a luxury hotel following the coronavirus disease (COVID-19) outbreak in Beijing, China, November 30, 2020. REUTERS/Thomas Peter

Chinese Foreign Ministry spokeswoman Hua Chunying holds a news conference in Beijing, China, November 30, 2020. REUTERS/Thomas Peter

Chinese Foreign Ministry spokeswoman Hua Chunying holds a news conference in Beijing, China, November 30, 2020. REUTERS/Thomas Peter

Chinese Foreign Ministry spokeswoman Hua Chunying holds a news conference in Beijing, China, November 30, 2020. REUTERS/Thomas Peter

People check a vending machine of Chinese toy maker Pop Mart at its booth inside a shopping mall in Beijing, China November 27, 2020. REUTERS/Florence Lo

A woman poses for pictures at a booth of Chinese toy maker Pop Mart at a shopping mall in Beijing, China November 27, 2020. REUTERS/Florence Lo

People visit a booth of Chinese toy maker Pop Mart at a shopping mall in Beijing, China November 27, 2020. REUTERS/Florence Lo

People walk past a store of Chinese toy maker Pop Mart at a shopping mall in Beijing, China November 27, 2020. REUTERS/Florence Lo

A man walks past a store of Chinese toy maker Pop Mart at a shopping mall in Beijing, China November 27, 2020. REUTERS/Florence Lo

People visit a booth of Chinese toy maker Pop Mart at a shopping mall in Beijing, China November 27, 2020. REUTERS/Florence Lo

A booth of Chinese toy maker Pop Mart is seen inside a shopping mall in Beijing, China November 27, 2020. REUTERS/Florence Lo

Bottles of Australian wine are seen at a store selling imported wine in Beijing, China November 27, 2020. REUTERS/Florence Lo

Bottles of Australian wine are seen at a store selling imported wine in Beijing, China November 27, 2020. REUTERS/Florence Lo

Bottles of Australian wine are seen at a store selling imported wine in Beijing, China November 27, 2020. REUTERS/Florence Lo

Bottles of Australian wine are seen at a store selling imported wine in Beijing, China November 27, 2020. REUTERS/Florence Lo

People wearing face masks following the coronavirus disease (COVID-19) outbreak visit the Xinfadi wholesale market in Beijing, China November 26, 2020. REUTERS/Florence Lo

Vendors wearing face masks following the coronavirus disease (COVID-19) outbreak sell pork at the Xinfadi wholesale market in Beijing, China November 26, 2020. REUTERS/Florence Lo

A car drives past a closed and empty hall for frozen food at Xinfadi wholesale market, following the coronavirus disease (COVID-19) outbreak in Beijing, China November 26, 2020. REUTERS/Florence Lo

A bottle of Kweichow Moutai liquor is seen displayed inside a direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

Bottles of Kweichow Moutai liquor are seen displayed inside a direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

Different series of Kweichow Moutai liquor are seen at a tasting section inside a direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

A staff member wearing a protective mask, following the coronavirus disease (COVID-19) outbreak, arranges boxes of Kweichow Moutai liquor inside a direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

A woman walks under a logo of Kweichow Moutai at its direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

Bottles of Kweichow Moutai Liquor are seen displayed inside a direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

A bottle of Kweichow Moutai Liquor is displayed inside a direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

A woman wearing a protective mask, following the coronavirus disease (COVID-19) outbreak, walks past a Kweichow Moutai's direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

A security guard wearing a protective mask, following the coronavirus disease (COVID-19) outbreak, stands next to a cabinet displaying bottles of Kweichow Moutai liquor inside a direct sale store in Beijing, China November 2, 2020. Picture taken November 2, 2020. REUTERS/Tingshu Wang

China's Premier Li Keqiang, Managing Director of the International Monetary Fund Kristalina Georgieva and Deputy Director General of the World Trade Organisation Alan Wolff raise their hands next to World Bank President David Malpass during a news conference via video link after the Fifth "1+6" Round Table Dialogue, in Beijing, China, November 24, 2020. REUTERS/Thomas Peter

An usher stands as China's Premier Li Keqiang, Managing Director of the International Monetary Fund Kristalina Georgieva, and Secretary General of the Organisation for Economic Cooperation and Development Angel Gurria are seen reflected in a glass door during a news conference via video link after the Fifth "1+6" Round Table Dialogue, in Beijing, China, November 24, 2020. REUTERS/Thomas Peter

China's Premier Li Keqiang, World Bank President David Malpass, Managing Director of the International Monetary Fund Kristalina Georgieva, Deputy Director General of the World Trade Organisation Alan Wolff, Director General of the International Labor Organisation Guy Ryder, Secretary General of the Organisation for Economic Cooperation and Development Angel Gurria and Chairman of the Financial Stability Board Randal K. Quarles attend a news conference via video link after the Fifth "1+6" Round Table Dialogue, in Beijing, China, November 24, 2020. REUTERS/Thomas Peter

Managing Director of the International Monetary Fund Kristalina Georgieva speaks during a news conference via video link after the Fifth "1+6" Round Table Dialogue, in Beijing, China, November 24, 2020. REUTERS/Thomas Peter

China's Premier Li Keqiang, World Bank President David Malpass, Managing Director of the International Monetary Fund Kristalina Georgieva and Deputy Director General of the World Trade Organisation Alan Wolff attend a news conference via video link after the Fifth "1+6" Round Table Dialogue, in Beijing, China, November 24, 2020. REUTERS/Thomas Peter REFILE - CORRECTING PARTICIPANTS

Workers leave a construction site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, November 23, 2020. REUTERS/Thomas Peter

People wear face masks near a tourist site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, November 23, 2020. REUTERS/Thomas Peter

People wear face masks near a tourist site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, November 23, 2020. REUTERS/Thomas Peter

Men work at a construction site following an outbreak of the coronavirus disease (COVID-19) in Beijing, China, November 23, 2020. REUTERS/Thomas Peter