Yi Xiaozhun, deputy Director General of the World Trade Organization (WTO), attends the General Council in Geneva, Switzerland, July 22, 2020. REUTERS/Denis Balibouse

Chinese Foreign Minister Wang Yi and Defense Minister Wei Fenghe, wearing face masks following the coronavirus disease (COVID-19) outbreak, talk before the closing session of the National People's Congress (NPC) at the Great Hall of the People in Beijing, China May 28, 2020. REUTERS/Carlos Garcia Rawlins

Chinese State Councillor and Foreign Minister Wang Yi and Secretary-General of the State Council Xiao Jie, wearing masks following the coronavirus disease (COVID-19) outbreak, talk at the second plenary session of the National People's Congress (NPC) at the Great Hall of the People in Beijing, China May 25, 2020. REUTERS/Thomas Peter

Chinese State Councillor and Foreign Minister Wang Yi is seen on screens at a media center during a news conference held via video link on the sidelines of the National People's Congress (NPC), in Beijing, China May 24, 2020. REUTERS/Yew Lun Tian

Chinese Foreign Minister Wang Yi wearing a face mask following the coronavirus disease (COVID-19) outbreak arrives to his seat for the opening session of the National People's Congress (NPC) at the Great Hall of the People in Beijing, China May 22, 2020. REUTERS/Carlos Garcia Rawlins

Chinese President Xi Jinping walks past Foreign Minister Wang Yi and Defense Minister Wei Fenghe wearing face masks following the coronavirus disease (COVID-19) outbreak as he arrives for the opening session of the National People's Congress (NPC) at the Great Hall of the People in Beijing, China May 22, 2020. REUTERS/Carlos Garcia Rawlins

Chinese Foreign Minister Wang Yi wearing a face mask following the coronavirus disease (COVID-19) outbreak attends the opening session of the National People's Congress (NPC) at the Great Hall of the People in Beijing, China May 22, 2020. REUTERS/Carlos Garcia Rawlins

Chinese President Xi Jinping and Premier Li Keqiang walk past Foreign Minister Wang Yi and Defense Minister Wei Fenghe, wearing face masks following the coronavirus disease (COVID-19) outbreak, while leaving at the end of the opening session of the Chinese People's Political Consultative Conference (CPPCC) at the Great Hall of the People in Beijing, China May 21, 2020. REUTERS/Carlos Garcia Rawlins

Research assistant Yi Kuo, of RNA medicines company Arcturus Therapeutics, conducts research on a vaccine for the novel coronavirus (COVID-19) at a laboratory in San Diego, California, U.S., March 17, 2020. REUTERS/Bing Guan

Research assistant Yi Kuo, of RNA medicines company Arcturus Therapeutics, conducts research on a vaccine for the novel coronavirus (COVID-19) at a laboratory in San Diego, California, U.S., March 17, 2020. REUTERS/Bing Guan

Chinese Foreign Minister Wang Yi speaks during a joint press conference with Serbian Foreign Minister Ivica Dacic following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Chinese Foreign Minister Wang Yi speaks during a joint press conference with Serbian Foreign Minister Ivica Dacic following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Chinese Foreign Minister Wang Yi during a joint press conference with Serbian Foreign Minister Ivica Dacic following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Chinese Foreign Minister Wang Yi and Serbian Foreign Minister Ivica Dacic attend a joint press conference following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Chinese Foreign Minister Wang Yi and Serbian Foreign Minister Ivica Dacic shake hands after a joint press conference following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Serbian Foreign Minister Ivica Dacic listens to Chinese Foreign Minister Wang Yi during a joint press conference following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Serbian Foreign Minister Ivica Dacic speaks during a joint press conference with Chinese Foreign Minister Wang Yi following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Serbian Foreign Minister Ivica Dacic speaks during a joint press conference with Chinese Foreign Minister Wang Yi following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

Serbian Foreign Minister Ivica Dacic speaks during a joint press conference with Chinese Foreign Minister Wang Yi following their meeting at Diaoyutai State Guesthouse in Beijing, China, February 26, 2020. Roman Pilipey/Pool via REUTERS

China's Foreign Minister Wang Yi (C), Secretary of Foreign Affairs of the Philippines Teodoro Lopez (L) and Laos Foreign Minister Saleumxay Kommasith attend a press conference after a meeting of foreign ministers of the Association of South East Asian Nations (ASEAN) an China about the coronavirus outbreak, in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi (C), Secretary of Foreign Affairs of the Philippines Teodoro Lopez (L) and Laos Foreign Minister Saleumxay Kommasith attend a press conference after a meeting of the Association of South East Asian Nations (ASEAN) and China about the coronavirus outbreak, in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi speaks during a news conference after a meeting of foreign ministers of the Association of South East Asian Nations (ASEAN) and China about the coronavirus outbreak, in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi speaks during a news conference after a meeting of foreign ministers of the Association of South East Asian Nations (ASEAN) and China about the coronavirus outbreak, in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi (R) and Secretary of Foreign Affairs of the Philippines Teodoro Lopez (L) attend a press conference after a meeting of foreign ministers of the Association of South East Asian Nations (ASEAN) and China about the coronavirus outbreak, in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi (C) speaks to Secretary of Foreign Affairs of the Philippines Teodoro Lopez (L) and Laos Foreign Minister Saleumxay Kommasith during a press conference after a meeting of foreign ministers of the Association of South East Asian Nations (ASEAN) and China about the coronavirus outbreak, in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi arrives to a meeting with foreign ministers of the Association of South East Asian Nations (ASEAN) on the coronavirus outbreak in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi speaks to foreign ministers of the Association of South East Asian Nations (ASEAN) during an emergency meeting on the coronavirus outbreak in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi speaks to foreign ministers of the Association of South East Asian Nations (ASEAN) during an emergency meeting on the coronavirus outbreak in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

Association of South East Asian Nations (ASEAN) foreign ministers pose during an emergency meeting with China's Foreign Minister Wang Yi on the coronavirus outbreak in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

Association of South East Asian Nations (ASEAN) foreign ministers pose during an emergency meeting with China's Foreign Minister Wang Yi on the coronavirus outbreak in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

Association of South East Asian Nations (ASEAN) foreign ministers pose during an emergency meeting with China's Foreign Minister Wang Yi on the coronavirus outbreak in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi speaks to foreign ministers of the Association of South East Asian Nations (ASEAN) during an emergency meeting on the coronavirus outbreak in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi (L) is welcome by Laos' President Bounnhang Vorachith before the Association of South East Asian Nations (ASEAN) and China emergency meeting on the coronavirus in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi is welcome by Laos' President Bounnhang Vorachith before the Association of South East Asian Nations (ASEAN) and China emergency meeting on the coronavirus in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

China's Foreign Minister Wang Yi (R) is welcome by Laos President Bounnhang Vorachith before the Association of South East Asian Nations (ASEAN) and China emergency meeting on the coronavirus in Vientiane, Laos February 20, 2020. REUTERS/Phoonsab Thevongsa

Chinese Foreign Minister Wang Yi adjusts the mics as he speaks at the annual Munich Security Conference in Germany February 15, 2020. REUTERS/Andreas Gebert

Chinese Foreign Minister Wang Yi gestures as he speaks at the annual Munich Security Conference in Germany February 15, 2020. REUTERS/Andreas Gebert

Chinese Foreign Minister Wang Yi speaks at the annual Munich Security Conference in Germany February 15, 2020. REUTERS/Andreas Gebert

Giant male panda Ru Yi plays with a heart-shaped pillow on Valentine's Day at the Moscow Zoo in the capital Moscow, Russia February 14, 2020. REUTERS/Maxim Shemetov TPX IMAGES OF THE DAY

German Foreign Minister Heiko Maas and Chinese Foreign Minister Wang Yi shakes hands after holding a joint news conference in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

Chinese Foreign Minister Wang Yi holds a joint news conference with German Foreign Minister Heiko Maas in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

Chinese Foreign Minister Wang Yi holds a joint news conference with German Foreign Minister Heiko Maas in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

Chinese Foreign Minister Wang Yi holds a joint news conference with German Foreign Minister Heiko Maas in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

Chinese Foreign Minister Wang Yi holds a joint news conference with German Foreign Minister Heiko Maas in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

Chinese Foreign Minister Wang Yi holds a joint news conference with German Foreign Minister Heiko Maas in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

German Foreign Minister Heiko Maas and Chinese Foreign Minister Wang Yi arrive for a joint news conference in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

Chinese Foreign Minister Wang Yi holds a joint news conference with German Foreign Minister Heiko Maas in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

German Foreign Minister Heiko Maas and Chinese Foreign Minister Wang Yi hold a joint news conference in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

German Foreign Minister Heiko Maas waits to meet with Chinese Foreign Minister Wang Yi in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

German Foreign Minister Heiko Maas and Chinese Foreign Minister Wang Yi meet for talks in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

German Foreign Minister Heiko Maas waits to meet with Chinese Foreign Minister Wang Yi in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

German Foreign Minister Heiko Maas and Chinese Foreign Minister Wang Yi meet for talks in Berlin, Germany, February 13, 2020. REUTERS/Hannibal Hanschke

Pig Rice Supermarket featured in South Korea's Oscar-winning "Parasite" is seen in Ahyeon-dong, one of the last shanty towns near downtown Seoul, South Korea February 11, 2019. Picture taken February 11, 2020. REUTERS/Hyun-Young Yi

People's Liberation Army Air Force (PLAAF) Ba Yi aerobatics team perform an aerial display at the Singapore Airshow in Singapore February 11, 2020. REUTERS/Edgar Su

People's Liberation Army Air Force (PLAAF) Ba Yi aerobatics team perform an aerial display at the Singapore Airshow in Singapore February 11, 2020. REUTERS/Edgar Su

People's Liberation Army Air Force (PLAAF) Ba Yi aerobatics team perform an aerial display at the Singapore Airshow in Singapore February 11, 2020. REUTERS/Edgar Su

People's Liberation Army Air Force (PLAAF) Ba Yi aerobatics team perform an aerial display at the Singapore Airshow in Singapore February 11, 2020. REUTERS/Edgar Su

China's People's Liberation Army Air Force (PLAAF) Ba Yi aerobatics team perform an aerial display during a media preview of the Singapore Airshow in Singapore February 9, 2020. REUTERS/Edgar Su

China's People's Liberation Army Air Force (PLAAF) Ba Yi aerobatics team perform an aerial display during a media preview of the Singapore Airshow in Singapore February 9, 2020. REUTERS/Edgar Su

China's People's Liberation Army Air Force (PLAAF) Ba Yi aerobatics team perform an aerial display during a media preview of the Singapore Airshow in Singapore February 9, 2020. REUTERS/Edgar Su