(L-R) CJ Group chairman Sohn Kyung-Shik, LG Group chairman Koo Bon-Moo, Hanhwa Group chairman Kim Seung-Youn, SK Group chairman Chey Tae-Won, Samsung Group's heir-apparent Lee Jae-Yong, Lotte Group Chairman Shin Dong-Bin, Hanjin Group chairman Cho Yang-Ho and Hyundai Motor Group Chairman Chung Mong-Koo take an oath during a parliamentary probe into a scandal engulfing President Park Geun-Hye at the National Assembly in Seoul on December 6, 2016. REUTERS/Jung Yeon-Je/Pool? 

Hanhwa Group chairman Kim Seung-Youn (L) answers a question as SK Group chairman Chey Tae-Won (R) listens during a parliamentary probe into a scandal engulfing President Park Geun-Hye at the National Assembly in Seoul on December 6, 2016. The publicity-shy heads of South Korea's largest conglomerates faced their worst nightmare on December 6, as they were publicly grilled about possible corrupt practises before an audience of millions. REUTERS/Jung Yeon-Je/Pool? 

South Korean director Park Chan-Wook (C) and cast members Jo Jing-Woong, Kim Tae-ri, Kim Min-hee and Ha Jung-woo (L-R) arrive on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Yves Herman 

South Korean director Park Chan-Wook (C) and cast members Jo Jing-Woong, Kim Tae-ri, Kim Min-hee and Ha Jung-woo (L-R) arrive on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Eric Gaillard 

South Korean director Park Chan-Wook (C) and cast members Ha Jung-woo, Kim Tae-ri, Kim Min-hee and Jo Jing-Woong (L-R) arrive on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Eric Gaillard 

South Korean director Park Chan-Wook (C) and cast members Ha Jung-woo, Kim Tae-ri, Kim Min-hee and Jo Jing-Woong (L-R) arrive on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Eric Gaillard 

South Korean director Park Chan-Wook (C) and cast members Jo Jing-Woomg, Kim Tae-ri, Kim Min-hee and Ha Jung-woo arrive on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Yves Herman 

South Korean director Park Chan-Wook (C) and cast members Jo Jing-Woomg, Kim Tae-ri, Kim Min-hee and Ha Jung-woo (L-R) arrive on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Eric Gaillard 

A guest takes a picture of South Korean director Park Chan-Wook and cast members Kim Min-hee, Ha Jung-woo and Kim Tae-ri as they arrive on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Jean-Paul Pelissier

South Korean director Park Chan-Wook (C) and cast members Kim Min-hee, Ha Jung-woo and Kim Tae-ri (L-R) arrive on red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Jean-Paul Pelissier

South Korean director Park Chan-Wook arrives on the red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France May 14, 2016. REUTERS/Yves Herman 

South Korean director Park Chan-Wook (C) and cast members Jo Jing-Woomg, Kim Tae-ri, Kim Min-hee and Ha Jung-woo arrive on red carpet for the screening of the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France May 14, 2016. REUTERS/Yves Herman 

Cast members (L-R) Ha Jung-woo, Kim Min-hee, Kim Tae-ri and Cho Jin-Woon pose for a photocall for the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Yves Herman 

Cast members (L-R) Cho Jin-woong, Kim Tae-ri, Kim Min-hee and Ha Jung-woo pose during a photo call for the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Eric Gaillard 

Director Park Chan-Wook (C) poses for a photocall with cast members Ha Jung-woo (L), Kim Min-hee (2ndL), Kim Tae-ri (2ndR) and Cho Jin-Woon for the film "The Handmaiden" (Agassi or Mademoiselle) in competition at the 69th Cannes Film Festival in Cannes, France, May 14, 2016. REUTERS/Yves Herman 

Chung Mong-gyu (4th L) President of the South Korean Football Association, Kim Jung-Tae, President of Hana Bank (3rd L) and South Korea's national soccer team coach Hong Myung-bo (2nd L) participate during the official opening of 'Korea House' the training base of South Korea's national soccer team for the 2014 World Cup, in Foz do Iguacu June 13, 2014,. Reuters/Jorge Adorno (BRAZIL - Tags: SPORT SOCCER WORLD CUP)

Chung Mong-gyu (4th L) President of the South Korean Football Association, Kim Jung-Tae, President of Hana Bank (3rd L) and South Korea's national soccer team coach Hong Myung-bo (2nd L) participate during the official opening of 'Korea House' the training base of South Korea's national soccer team for the 2014 World Cup, in Foz do Iguacu June 13, 2014,. Reuters/Jorge Adorno (BRAZIL - Tags: SPORT SOCCER WORLD CUP)

Chung Mong-gyu (3nd L) President of the South Korean Football Association, Kim Jung-Tae, President of Hana Bank (2nd L) and South Korea's national soccer team coach Hong Myung-bo (L) participate during the official opening of 'Korea House' the training base of South Korea's national soccer team for the 2014 World Cup, in Foz do Iguacu June 13, 2014,. Reuters/Jorge Adorno (BRAZIL - Tags: SPORT SOCCER WORLD CUP)

South Korean actor Yoo Ji-tae (L) and his wife, actress Kim Hyo-jin, pose for photographs as they arrive for the wedding ceremony of South Korean actor Lee Byung-hun and actress Lee Min-jung, at a hotel in Seoul August 10, 2013. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: ENTERTAINMENT) 

South Korean actor Yoo Ji-tae (L) and his wife, actress Kim Hyo-jin, pose for photographs as they arrive for the wedding ceremony of South Korean actor Lee Byung-hun and actress Lee Min-jung, at a hotel in Seoul August 10, 2013. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: ENTERTAINMENT) 

South Korean actress Kim Tae-hee poses for photographs as she arrives for the wedding ceremony of South Korean actor Lee Byung-hun and actress Lee Min-jung at a hotel in Seoul August 10, 2013. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: ENTERTAINMENT) 

South Korean actor Kwon Sang-woo (R) and his wife, actress Son Tae-young, pose for photographs as they attend the wedding ceremony of South Korean actor Lee Byung-hun and actress Lee Min-jung, at a hotel in Seoul August 10, 2013. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: ENTERTAINMENT) 

South Korean actor Kwon Sang-woo (R) and his wife, actress Son Tae-young, pose for photographs as they attend the wedding ceremony of South Korean actor Lee Byung-hun and actress Lee Min-jung, at a hotel in Seoul August 10, 2013. REUTERS/Kim Hong-Ji (SOUTH KOREA - Tags: ENTERTAINMENT) 

South Korean players (L-R, back row): Hong Jeong-ho, Lee Beom-young, Jung Woo-young, Yun Suk-young, Kim Young-gwon, Kim Hyun-sung, (L-R, front row) Baek Sung-dong, Han Guk-young, Oh Jae-suk, Cho Young-cheol and Kim Tae-hwan pose for a photo before their London 2012 Olympic qualifier soccer match against Saudi Arabia in Seoul November 27, 2011. REUTERS/Jo Yong-Hak (SOUTH KOREA - Tags: SPORT SOCCER) 

South Korean Defence Minister Kim Tae-Young, U.S. Defense Secretary Robert Gates, U.S. Secretary of State Hillary Clinton and South Korean Foreign Minister Yu Myung-Hwan (front row, 6th L-7th R) pose with relatives of Korea War veterans after a welcoming ceremony at the Korea War Memorial in Seoul July 21, 2010. Clinton and Defense Secretary Robert Gates on Wednesday visited the zone dividing the two Koreas, underlining support for Seoul in its latest standoff with the North. REUTERS/Jung Yeon-Je/Pool (SOUTH KOREA - Tags: POLITICS) 

U.S. Defense Secretary Robert Gates, U.S. Secretary of State Hillary Clinton, South Korean Foreign Minister Yu Myung-Hwan and South Korean Defence Minister Kim Tae-Young (in a row, L-R) offer a wreath as they visit the Korea War Memorial in Seoul July 21, 2010. Clinton and Gates on Wednesday visited the zone dividing the two Koreas, underlining support for Seoul in its latest standoff with the North. REUTERS/Jung Yeon-Je/Pool (SOUTH KOREA - Tags: POLITICS) 

U.S. Defense Secretary Robert Gates, U.S. Secretary of State Hillary Clinton, South Korean Foreign Minister Yu Myung-Hwan and South Korean Defence Minister Kim Tae-Young (L-R) pay their respects to the war dead at the Korea War Memorial in Seoul July 21, 2010. Clinton and Gates on Wednesday visited the zone dividing the two Koreas, underlining support for Seoul in its latest standoff with the North. REUTERS/Jung Yeon-Je/Pool (SOUTH KOREA - Tags: POLITICS) 

U.S. Defense Secretary Robert Gates, U.S. Secretary of State Hillary Clinton, South Korean Foreign Minister Yu Myung-Hwan and South Korean Defence Minister Kim Tae-Young (centre, L-R) lay a wreath during their visit to the Korea War Memorial in Seoul July 21, 2010. Clinton and Gates on Wednesday visited the zone dividing the two Koreas, underlining support for Seoul in its latest standoff with the North. REUTERS/Jung Yeon-Je/Pool (SOUTH KOREA - Tags: POLITICS) 

(Front row L-R) South Korea's national soccer team players Shin Hyung-min, Oh Beom-seok, Ki Sung-yueng, Yeom Ki-hun and Park Ji-Sung, (Second row L-R) Kim Jae-sung, Cho Yong-hyung, Kwak Tae-hwi, Lee Dong-gook, Kim Dong-jin and goalkeeper Jung Sung-ryong pose before a friendly soccer match at the Seoul World Cup stadium in Seoul May 16, 2010. REUTERS/Lee Jae-Won (SOUTH KOREA - Tags: SPORT SOCCER WORLD CUP 2010 PREVIEW - TEAM) 

From left, Korean Ambassador to the U.S. Lee Tae-sik, Defense Attache BG Kim, Korean Armed Forces Liaison Maj. Gen. Kang Dae-young and Korean Corporate Members of the Association of the US Army President Jung-ki 'Rocky' Park participate in a wreath-laying ceremony honoring US and Korean soldiers killed during the Korean War at the Korean War Memorial in Washington October 5, 2009 REUTERS/Kevin Lamarque (UNITED STATES POLITICS) 

South Korean President Lee Myung-bak talks during a meeting with Kim Tae-Hwan, the governor of Jeju province, ahead of the Korea-ASEAN Summit on the southern island of Jeju May 31, 2009. The meeting with the Association of South East Asian Nations (ASEAN) will be held on the southern resort island of Jeju on June 1-2. REUTERS/Jung Yeon-Je (SOUTH KOREA POLITICS) 

South Korean President Lee Myung-bak (R) shakes hands with Kim Tae-Hwan, the governor of Jeju province, ahead of the Korea-ASEAN (Association of South East Asian Nations) Summit on the southern island of Jeju May 31, 2009. The meeting with the ASEAN will be held on the southern resort island of Jeju on June 1-2. REUTERS/Jung Yeon-Je (SOUTH KOREA POLITICS) 

Thailand's Prime Minister Abhisit Vejjajiva (L) waves with Kim Tae-Hwan, the governor of Jeju island, upon his arrival at Jeju airport to attend the ASEAN-Republic of Korea Commemorative Summit on the southern island of Jeju May 30, 2009. REUTERS/Jung Yeon-Je/Pool (SOUTH KOREA POLITICS) 

Thailand's Prime Minister Abhisit Vejjajiva (R) shakes hands with Kim Tae-Hwan, the governor of Jeju island, upon his arrival at Jeju airport to attend the ASEAN-Republic of Korea Commemorative Summit on the southern island of Jeju May 30, 2009. REUTERS/Jung Yeon-Je/Pool (SOUTH KOREA POLITICS) 

Team Korea's Kim Tae-kyun (52) celebrates his two-run home run with third base coach Ryu Jung-il as he rounds third base during the semifinal game against Team Venezuela at the World Baseball Classic in Los Angeles, California, March 21, 2009. REUTERS/Danny Moloshok (UNITED STATES SPORT BASEBALL) 

Team Korea's Kim Tae-Kyun (L) celebrates with Bong Jung-Keun after hitting a solo home run in the fourth inning against Team Mexico in Round 2 of the World Baseball Classic in San Diego, California March 15, 2009. REUTERS/Mike Blake (UNITED STATES SPORT BASEBALL) 

Team Korea's Kim Tae-Kyun (L) celebrates with Bong Jung-Keun after hitting a solo home run in the fourth inning against Team Mexico in Round 2 of the World Baseball Classic in San Diego, California March 15, 2009. REUTERS/Mike Blake (UNITED STATES SPORT BASEBALL) 

Team Korea's Kim Tae-Kyun Kim (L) celebrates with Bong Jung-Keun after hitting a solo home run in the fourth inning against Team Mexico in Round 2 of the World Baseball Classic in San Diego, California March 15, 2009. REUTERS/Mike Blake (UNITED STATES SPORT BASEBALL) 

South Korea's Kim Jung-woo (16) fights for the ball against North Korea's Jong Tae-se (12) during their 2010 World Cup soccer qualifying match at the Seoul World Cup Stadium June 22, 2008. REUTERS/Jo Yong-Hak (SOUTH KOREA) 

South Korea's President Roh Moo-hyun (2nd R), former South Korean President Kim Dae-jung (L), former Soviet leader Mikhail Gorbachev (R) and Mayor of Kwangju Park Gwang-tae arrive for the opening ceremony of the 2006 Gwangju Summit of Nobel Peace Laureates in Kwangju, south of Seoul, June 16, 2006. REUTERS/Kim Jae-hwan/Pool 

Outgoing CEO of South Korea's Kookmin Bank Mr Kim Jung-tae speaks during a ceremony in Seoul, October 29, 2004. Sharehoders of South Korea's biggest lender Kookmin voted on Friday to approve the appointment of new President, Kang Chung-won, who vowed to improve the bank's profitability, the bank said. REUTERS/You Sung-Ho 

Kim Jung-tae the outgoing CEO of South Korea's Kookmin Bank receives cheers from employees before his departure Seoul. Kim Jung-tae (L), the outgoing CEO of South Korea's Kookmin Bank receives cheers from employees before his departure, Seoul October 29, 2004. Sharehoders of South Korea's biggest lender Kookmin voted on Friday to approve the appointment of new President Kang Chung-won, who vowed to improve the bank's profitability, the bank said. REUTERS/You Sung-Ho 

Kang Chung-won (L), new chief executive of South Korea's Kookmin Bank, shakes hands with the outgoing CEO Kim Jung-tae during a shareholder meeting at the bank headquarters in Seoul, October 29, 2004. Sharehoders of South Korea's biggest lender Kookmin voted on Friday to approve the appointment of Kang, who vowed to improve the bank's profitability, the bank said. REUTERS/You Sung-Ho YSH/TW 

South Korea's Financial Supervisory Commission official Kim answers question at a news conference in Seoul. The director of the bank examination department at South Korea's Financial Supervisory Commission, Kim Dae-pyung, answers questions at a news conference in Seoul September 10, 2004. South Korea's top financial regulator censured Kim Jung-tae, the chief executive of Kookmin Bank, over an accounting scandal, barring him from seeking a new term at the country's top lender. REUTERS/You Sung-Ho 

A South Korean worker cleans windows at the headquarters of Kookmin Bank in Seoul September 10, 2004. South Korea's top financial regulator censured Kim Jung-tae, the chief executive of Kookmin Bank, over an accounting scandal, barring him from seeking a new term at the country's top lender. REUTERS/You Sung-Ho YSH/ 

South Koreans enter the headquarters of Kookmin Bank in Seoul September 10, 2004. South Korea's top financial regulator has censured Kim Jung-tae, the chief executive of Kookmin Bank, over an accounting scandal, barring him from seeking a new term at the country's top lender. REUTERS/You Sung-Ho YSH 

- PHOTO TAKEN 31AUG04 - Kim Jung-tae, the CEO of South Korea's Kookmin Bank, walks to his office at the bank's headquarters in Seoul in this picture taken August 31, 2004. [Kim is expected to be barred on Friday from holding an executive post at any South Korean bank in the next 3 years, taking the rap for an accounting scandal at the bank. Picture taken August 31, 2004.] 

Kim Jung-tae, the CEO of South Korea's Kookmin Bank, walks to his office at the bank's headquarters in Seoul in this picture taken August 31, 2004. Kim is expected to be barred on Friday from holding an executive post at any South Korean bank in the next 3 years, taking the rap for an accounting scandal at the bank. Picture taken August 31, 2004. REUTERS/Lee Jae-Won LJW/SH 

Kim Jung-tae, chief executive of South Korea's Kookmin Bank, chats at the bank's headquarters in Seoul. Kim Jung-tae, chief executive of South Korea's Kookmin Bank, chats during a meeting with officials of Dutch financial services group ING to sign a deal on the purchase of a 49 percent stake in a bancassurance unit of Kookmin bank, at the bank headquarters in Seoul August 31, 2004. Kim is expected to receive a reprimand, barring him from a second stint at the helm of the bank after his term expires in October, the financial regulator has said. REUTERS/Lee Jae-Won 

Kim Jung-tae, chief executive of South Korea's Kookmin Bank, looks over a contract at the bank headquarters in Seoul. Kim Jung-tae, chief executive of South Korea's Kookmin Bank, looks over a contract as he meets officials of Dutch financial services group ING to sign a deal on the purchase of a 49 percent stake in a bancassurance unit of Kookmin bank, at the bank headquarters in Seoul August 31, 2004. Kim is expected to receive a reprimand, barring him from a second stint at the helm of the bank after his term expires in October, the financial regulator has said. REUTERS/Lee Jae-Won 

Kim Jung-tae, chief executive of South Korea's Kookmin Bank, reacts at the bank headquarters in Seoul. Kim Jung-tae, chief executive of South Korea's Kookmin Bank, reacts during meeting with officials of Dutch financial services group ING to sign a deal on the purchase of a 49 percent stake in a bancassurance unit of Kookmin bank, at the bank headquarters in Seoul August 31, 2004. Kim is expected to receive a reprimand, barring him from a second stint at the helm of the bank after his term expires in October, the financial regulator has said. REUTERS/Lee Jae-Won 

Chief executive of South Korea's Kookmin Bank,Kim toasts with champagne with officials of Dutch financial services group ING in Seoul. Kim Jung-tae, chief executive of South Korea's Kookmin Bank, toasts with champagne with officials of Dutch financial services group ING after signing a deal on the purchase of a 49 percent stake in a bancassurance unit of Kookmin bank, at the bank headquarters in Seoul August 31, 2004. Kim is expected to receive a reprimand, barring him from a second stint at the helm of the bank after his term expires in October, the financial regulator has said. REUTERS/Lee Jae-Won 

Kim Jung-tae, chief executive of South Korea's Kookmin Bank, reacts at the bank headquarters in Seoul. Kim Jung-tae, chief executive of South Korea's Kookmin Bank, reacts during meeting with officials of Dutch financial services group ING to sign a deal on the purchase of a 49 percent stake in a bancassurance unit of Kookmin bank, at the bank headquarters in Seoul August 31, 2004. Kim is expected to receive a reprimand, barring him from a second stint at the helm of the bank after his term expires in October, the financial regulator has said. REUTERS/Lee Jae-Won 

Kim Jung-tae, chief executive of South Korea's Kookmin Bank, reacts at the bank headquarters in Seoul. Kim Jung-tae, chief executive of South Korea's Kookmin Bank, reacts during meeting with officials of Dutch financial services group ING to sign a deal on the purchase of a 49 percent stake in a bancassurance unit of Kookmin bank, at the bank headquarters in Seoul August 31, 2004. Kim is expected to receive a reprimand, barring him from a second stint at the helm of the bank after his term expires in October, the financial regulator has said. REUTERS/Lee Jae-Won 

South Korean customers use ATMs at Kookmin Bank in Seoul August 26, 2004. South Korea's top financial regulator confirmed on Thursday the chief executive of Kookmin Bank, [Kim Jung-tae, would be unable to seek another term due to accounting problems at the country's top lender.] 

South Korean customers use ATMs at Kookmin Bank in Seoul August 26, 2004. South Korea's top financial regulator confirmed on Thursday the chief executive of Kookmin Bank, [Kim Jung-tae, would be unable to seek another term due to accounting problems at the country's top lender.] 

South Korean customers use a cash machine at Kookmin Bank in Seoul August 26, 2004. South Korea's top financial regulator confirmed on Thursday the chief executive of Kookmin Bank, [Kim Jung-tae, would be unable to seek another term due to accounting problems at the country's top lender.] 

South Korean customers use ATMs at Kookmin Bank in Seoul August 26, 2004. South Korea's top financial regulator confirmed on Thursday the chief executive of Kookmin Bank, Kim Jung-tae, would be unable to seek another term due to accounting problems at the country's top lender. REUTERS/Lee Jae-Won LJW/SH 

South Korean customers use ATMs at Kookmin Bank in Seoul August 26, 2004. South Korea's top financial regulator confirmed on Thursday the chief executive of Kookmin Bank, Kim Jung-tae, would be unable to seek another term due to accounting problems at the country's top lender. REUTERS/Lee Jae-Won LJW/SH 

South Korean customers use a cash machine at Kookmin Bank in Seoul August 26, 2004. South Korea's top financial regulator confirmed on Thursday the chief executive of Kookmin Bank, Kim Jung-tae, would be unable to seek another term due to accounting problems at the country's top lender. REUTERS/Lee Jae-Won LJW/