Chinese Vice Finance Minister Liu Wei attends a news conference during the ongoing National People's Congress (NPC), China's parliamentary body, in Beijing, China March 7, 2019. REUTERS/Jason Lee

Chinese Vice Finance Minister Liu Wei attends a news conference during the ongoing National People's Congress (NPC), China's parliamentary body, in Beijing, China March 7, 2019. REUTERS/Jason Lee

Chinese Vice Finance Minister Liu Wei attends a news conference during the ongoing National People's Congress (NPC), China's parliamentary body, in Beijing, China March 7, 2019. REUTERS/Jason Lee

Jun Xu (L), CEO and Director and Director Wei Liu (C) of Chinese company 360 Finance Inc. (QFIN) stand with Nasdaq Senior Vice President Robert McCooey (R) outside the Nasdaq Market Site before the company's IPO on the Nasdaq in Times Square in New York City, New York, U.S., December 14, 2018. REUTERS/Mike Segar

(L-R) Alex Wu CFO, Jun Xu CEO and Director, Hu Huan, Director Wei Liu and President Haisheng Wu of Chinese company 360 Finance Inc. (QFIN) stand outside the Nasdaq Market Site before the company's IPO on the Nasdaq in Times Square in New York City, New York, U.S., December 14, 2018. REUTERS/Mike Segar

(L-R) Alex Wu CFO, Jun Xu CEO and Director, Hu Huan, Director Wei Liu and President Haisheng Wu of Chinese company 360 Finance Inc. (QFIN) stand outside the Nasdaq Market Site before the company's IPO on the Nasdaq in Times Square in New York City, New York, U.S., December 14, 2018. REUTERS/Mike Segar

Jun Xu (L), CEO and Director and Director Wei Liu (R) and his wife Hu Huan (C) of Chinese company 360 Finance Inc. (QFIN) stand outside the Nasdaq Market Site before the company's IPO on the Nasdaq in Times Square in New York City, New York, U.S., December 14, 2018. REUTERS/Mike Segar

Wei Liu, Director of Chinese company 360 Finance Inc. (QFIN) stands outside the Nasdaq Market Site before the company's IPO on the Nasdaq in Times Square in New York City, New York, U.S., December 14, 2018. REUTERS/Mike Segar

Spectators watch as Viktor Liu is suspended from hooks pierced through his skin by professional body artist Wei Yilaien at a bar in Shanghai, China September 16, 2018. Picture taken September 16, 2018. REUTERS/Aly Song

Spectators watch as Viktor Liu is suspended from hooks pierced through his skin by professional body artist Wei Yilaien at a bar in Shanghai, China September 16, 2018. Picture taken September 16, 2018. REUTERS/Aly Song

Spectators watch as Viktor Liu is suspended from hooks pierced through his skin by the professional body artist Wei Yilaien at a bar in Shanghai, China September 16, 2018. Picture taken September 16, 2018. REUTERS/Aly Song

Spectators watch as Viktor Liu waits to be suspended from hooks pierced through his skin by professional body artist Wei Yilaien at a bar in Shanghai, China September 16, 2018. Picture taken September 16, 2018. REUTERS/Aly Song

Spectators watch as professional body artist Wei Yilaien and her assistants prepare Viktor Liu for body suspension at a bar in Shanghai, China September 16, 2018. Picture taken September 16, 2018. REUTERS/Aly Song

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Wang Meng of China and Liu Wei of China celebrate after defeating Norway. REUTERS/Carl Recine TPX IMAGES OF THE DAY

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Gold medallists Liu Wei of China and his teammates Wang Haitao, Wang Meng and Zhang Qiang celebrate with their coach Yue Qingshuang. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Wang Haitao of China and his teammates Liu Wei and Wang Meng in action. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Liu Wei of China reacts. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - (L-R) Gold medallists Wang Haitao of China and his teammates Chen Jianxin, Liu Wei, Wang Meng and Zhang Qiang celebrate on the podium during the victory ceremony. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - (L-R) Gold medallists Wang Haitao of China and his teammates Chen Jianxin, Liu Wei, Wang Meng and Zhang Qiang celebrate on the podium during the victory ceremony. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Wang Meng of China and Liu Wei of China react during the game. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Liu Wei of China bites his gold medal during the victory ceremony. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Liu Wei of China in action. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Liu Wei of China in action. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Liu Wei of China in action. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Wang Meng of China and Liu Wei of China celebrate after defeating Norway. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Gold Medal Game - China v Norway - Gangneung Curling Centre - Gangneung, South Korea - March 17, 2018 - Wang Meng of China and Liu Wei of China celebrate after defeating Norway. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Mixed Semi-Final - Gangneung Curling Centre - Gangneung, South Korea - March 16, 2018 - Liu Wei of China celebrates after the team defeated Canada. REUTERS/Carl Recine TPX IMAGES OF THE DAY

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Mixed Semi-Final - Gangneung Curling Centre - Gangneung, South Korea - March 16, 2018 - Wang Haitao of China and his teammates Liu Wei and Wang Meng celebrate after the team defeated Canada. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Mixed Semi-Final - Gangneung Curling Centre - Gangneung, South Korea - March 16, 2018 - Wang Haitao of China and his teammates Liu Wei and Wang Meng celebrate after the team defeated Canada. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Mixed Semi-Final - Gangneung Curling Centre - Gangneung, South Korea - March 16, 2018 - Liu Wei of China celebrates after the team defeated Canada. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Mixed Semi-Final - Gangneung Curling Centre - Gangneung, South Korea - March 16, 2018 - Liu Wei of China celebrates after the team defeated Canada. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Mixed Semi-Final - Gangneung Curling Centre - Gangneung, South Korea - March 16, 2018 - Liu Wei of China celebrates after the team defeated Canada. REUTERS/Carl Recine

Wheelchair Curling - Pyeongchang 2018 Winter Paralympics - Mixed Semi-Final - Gangneung Curling Centre - Gangneung, South Korea - March 16, 2018 -Liu Wei of China celebrates after the team defeated Canada. REUTERS/Carl Recine

Badminton - Badminton World Championships - Glasgow, Britain - August 26, 2017 China's Liu Cheng and Zhang Nan celebrate after winning against China's Hong Wei and Chai Biao REUTERS/Russell Cheyne

Badminton - Badminton World Championships - Glasgow, Britain - August 26, 2017 China's Liu Cheng and Zhang Nan celebrate after winning against China's Hong Wei and Chai Biao REUTERS/Russell Cheyne

Badminton - Badminton World Championships - Glasgow, Britain - August 26, 2017 China's Liu Cheng and Zhang Nan react after winning against China's Hong Wei and Chai Biao REUTERS/Russell Cheyne

CAPTION CORRECTION - Athletics - IAAF World ParaAthletics Championships - London, Britain - July 23, 2017 China's Wei Liu runs the last leg to take second place in the Men's 4x100m Relay T11-13 Final but later awared first place as Spain were disqualified REUTERS/Peter Cziborra

Athletics - IAAF World ParaAthletics Championships - London, Britain - July 23, 2017 China's Wei Liu runs the last leg to take second place in the Men's 4x100m Relay T42-47 Final REUTERS/Peter Cziborra

Taiwan Semiconductor Manufacturing Company (TSMC) Presidents and Co-Chief Executive Officers C.C. Wei (L) and Mark Liu attend an investors' conference in Taipei, Taiwan April 13, 2017. REUTERS/Tyrone Siu

2016 Rio Olympics - Boxing - Preliminary - Men's Welter (69kg) Round of 32 Bout 25 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 07/08/2016. Eimantas Stanionis (LTU) of Lithuania and Liu Wei (CHN) of China (PRC) compete. REUTERS/ Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.
Picture Supplied by Action Images

2016 Rio Olympics - Boxing - Preliminary - Men's Welter (69kg) Round of 32 Bout 25 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 07/08/2016. Eimantas Stanionis (LTU) of Lithuania and Liu Wei (CHN) of China (PRC) compete. REUTERS/ Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.
Picture Supplied by Action Images

2016 Rio Olympics - Boxing - Preliminary - Men's Welter (69kg) Round of 32 Bout 25 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 07/08/2016. Eimantas Stanionis (LTU) of Lithuania reacts during his bout with Liu Wei (CHN) of China (PRC). REUTERS/ Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.
Picture Supplied by Action Images

2016 Rio Olympics - Boxing - Preliminary - Men's Welter (69kg) Round of 32 Bout 25 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 07/08/2016. Eimantas Stanionis (LTU) of Lithuania and Liu Wei (CHN) of China (PRC) compete. REUTERS/ Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.
Picture Supplied by Action Images

Taiwan Semiconductor Manufacturing Co Ltd (TSMC) co-Chief Executives Mark Liu (L) listens while C.C. Wei answers a question during an interview with Reuters at its headquarters in Hsinchu, northern Taiwan, November 19, 2015. To match Interview TSMC-CAPEX/ REUTERS/Pichi Chuang

Taiwan Semiconductor Manufacturing Co Ltd (TSMC) co-Chief Executives Mark Liu (L) and C.C. Wei listen to a question during an interview with Reuters at its headquarters in Hsinchu, northern Taiwan, November 19, 2015. To match Interview TSMC-CAPEX/ REUTERS/Pichi Chuang

Taiwan Semiconductor Manufacturing Co Ltd (TSMC) co-Chief Executives Mark Liu (L) and C.C. Wei laugh as they listen to a question during an interview with Reuters at its headquarters in Hsinchu, northern Taiwan, November 19, 2015. Taiwan Semiconductor Manufacturing Co Ltd will not be conservative about capital expenditure next year as customer demand improves, albeit slowly, Liu and Wei, the two chief executives of the world's largest contract chipmaker said on Thursday. To match Interview TSMC-CAPEX/ REUTERS/Pichi Chuang

Chinese President Xi Jinping (front-row-center), poses for a photo with a group of CEOs and other executives at Microsoft's main campus in Redmond, Washington September 23, 2015. Front row L-R: Facebook's Mark Zuckerberg, JD.com's Liu Qiangdong, Cisco's John Chambers, Alibaba's Jack Ma, IBM's Ginni Rometty, Chinese President Xi Jinping, Microsoft's Satya Nadella, China's Internet czar Lu Wei, Apple's Tim Cook, Tencent's Pony Ma, and Amazon's Jeff Bezos. Middle row L-R: Sohu's Zhang Chaoyang, AMD's Lisa Su, Lenovo's Yang Yuanqing, Microsoft's Harry Shum, Qualcomm's Steve Mollenkopf, CETC's Ziong Qunli, Intel's Brian Krzanich, Qihoo 360's Zhou Hongyi, LinkedIn's Reid Hoffman, and SINA's Cao Guowei. Back row L-R: Sugon's Li Jun, Didi-Kuaidi's Cheng Wei, Broadband Capital's Tian Suning, CEC's Liu Liehong, Baidu's Zhang Yaqin, AME Cloud Ventures' Jerry Yang, Inspur's Sun Pishu, AirBnB's Brian Chesky, and Sequoia Capital's Shen Nanpeng. REUTERS/Ted S. Warren/Pool

U.S. President Barack Obama (C) shakes hands with Justin Ramos (center L) and Jayden Ramos (center R), the sons of slain New York City police officer Rafael Ramos, after signing the Rafael Ramos and Wenjian Liu National Blue Alert Act into law in the Oval Office in Washington May 19, 2015. Ramos and Liu were the New York City police officers shot dead while in a patrol car last December by a killer who said he wanted to kill police in revenge for deaths of black men by police. Also pictured are U.S. Vice President Joe Biden (L), Representative Dave Reichert (R-WA) (2nd R) and Wei Tang Liu (R), the father of Officer Liu. REUTERS/Jonathan Ernst

U.S. President Barack Obama (bottom) addresses lawmakers and family members of slain police officers before signing the Rafael Ramos and Wenjian Liu National Blue Alert Act into law in the Oval Office in Washington May 19, 2015. Ramos and Liu were the New York City police officers shot dead while in a patrol car last December by a killer who said he wanted to kill police in revenge for deaths of black men by police. Also pictured are Vice President Joe Biden (L-R), Jayden Ramos, Maritza Ramos, Senator Ben Cardin (D-MD), Representative Dave Reichert (R-WA), Representative Bill Pascrell (D-NJ) and Wei Tang Liu. REUTERS/Jonathan Ernst

U.S. President Barack Obama (C) talks to reporters before signing the Rafael Ramos and Wenjian Liu National Blue Alert Act into law, surrounded by lawmakers and family members in the Oval Office in Washington May 19, 2015. Ramos and Liu were the New York City police officers shot dead while in a patrol car last December by a killer who said he wanted to kill police in revenge for deaths of black men by police. Also pictured are Justin Ramos (L-R), Vice President Joe Biden, Jayden Ramos, Maritza Ramos, Senator Ben Cardin (D-MD), Representative Dave Reichert (R-WA), Representative Bill Pascrell (D-NJ), Wei Tang Liu and Xiu Yan Li. REUTERS/Carlos Barria

U.S. President Barack Obama (bottom) addresses lawmakers and family members of slain police officers before signing the Rafael Ramos and Wenjian Liu National Blue Alert Act into law in the Oval Office in Washington May 19, 2015. Ramos and Liu were the New York City police officers shot dead while in a patrol car last December by a killer who said he wanted to kill police in revenge for deaths of black men by police. Also pictured are Justin Ramos (L-R), Vice President Joe Biden, Jayden Ramos, Maritza Ramos, Senator Ben Cardin (D-MD), Representative Dave Reichert (R-WA), Representative Bill Pascrell (D-NJ) and Wei Tang Liu. REUTERS/Jonathan Ernst

U.S. President Barack Obama (bottom) addresses lawmakers and family members of slain police officers before signing the Rafael Ramos and Wenjian Liu National Blue Alert Act into law in the Oval Office in Washington May 19, 2015. Ramos and Liu were the New York City police officers shot dead while in a patrol car last December by a killer who said he wanted to kill police in revenge for deaths of black men by police. Also pictured are Jayden Ramos (L-R), Maritza Ramos, Senator Ben Cardin (D-MD), Representative Dave Reichert (R-WA), Representative Bill Pascrell (D-NJ), Wei Tang Liu and Xiu Yan Li. REUTERS/Jonathan Ernst

U.S. President Barack Obama (C) is surrounded by lawmakers and family members of slain police officers as he signs the Rafael Ramos and Wenjian Liu National Blue Alert Act into law in the Oval Office in Washington May 19, 2015. Ramos and Liu were the New York City police officers shot dead while in a patrol car last December by a killer who said he wanted to kill police in revenge for deaths of black men by police. Also pictured are Justin Ramos (L-R), Vice President Joe Biden, Jayden Ramos, Maritza Ramos, Senator Ben Cardin (D-MD), Representative Dave Reichert (R-WA), Representative Bill Pascrell (D-NJ), Wei Tang Liu and Xiu Yan Li. REUTERS/Jonathan Ernst TPX IMAGES OF THE DAY

Challenger Liu Wei (L) of China Dragons and Mohammed Rabii of Morocco Atlas Lions exchange punches during their WSB boxing Welter title bout in Casablanca, April 10, 2015. Mohammed won by decision. REUTERS/Youssef Boudlal

Challenger Liu Wei (R) of China Dragons and Mohammed Rabii of Morocco Atlas Lions exchange punches during their WSB boxing Welter title bout in Casablanca, April 10, 2015. Mohammed won by decision. REUTERS/Youssef Boudlal

The team of China, including Liu Hao, Liu Wei, Qin Chenlu and Shen Pingan competes in the men's team pursuit qualifying race at the UCI Track Cycling World Cup in Saint-Quentin-en-Yvelines, near Paris, February 18, 2015. REUTERS/Charles Platiau (FRANCE - Tags: SPORT CYCLING)

A model presents a creation by Chinese designer Liu Wei from TORAY Liu Wei Collection at China Fashion Week in Beijing, October 30, 2014. REUTERS/Jason Lee (CHINA - Tags: FASHION)

A model presents a creation by Chinese designer Liu Wei from TORAY Liu Wei Collection at China Fashion Week in Beijing, October 30, 2014. REUTERS/Jason Lee (CHINA - Tags: FASHION)

A model presents a creation by Chinese designer Liu Wei from TORAY Liu Wei Collection at China Fashion Week in Beijing, October 30, 2014. REUTERS/Jason Lee (CHINA - Tags: FASHION)

A model presents a creation by Chinese designer Liu Wei from TORAY Liu Wei Collection at China Fashion Week in Beijing, October 30, 2014. REUTERS/Jason Lee (CHINA - Tags: FASHION)