Lee Kun-hee, South Korea’s richest person and chairman of Samsung Electronics Co, died on Sunday, leaving behind considerable assets subject to be potentially inherited by his surviving family as well as inheritance tax.

Here is a rundown of his net worth, which Forbes says amounts to $21 billion, and expected inheritance tax.

Lee was the wealthiest stock owner in South Korea, and had stakes in four listed Samsung companies valued at about 18.2 trillion won ($16.1 billion) as of Friday’s closing price.

His stock ownership included 4.18% of Samsung Electronics common shares and 0.08% of preferred shares, worth about 15 trillion won in total; a 20.76% stake in Samsung Life Insurance worth about 2.6 trillion won; a 2.88% stake in Samsung C&T worth about 564 billion won; and a 0.01% stake in Samsung SDS worth about 1.67 billion won, according to Reuters calculations based on Fair Trade Commission data.

According to South Korean tax rules, before applying the country’s 50% inheritance tax rate on listed stocks, a 20% premium is added to the appraisal value of the deceased person’s holdings, which will be based on the four-month average of the shares’ closing market price before and after the death.

On current estimates, the inheritance tax for the above stocks alone is expected to be around 10.6 trillion won, according to a Reuters calculation. Lee Kun-hee, who built Samsung Electronics into a global powerhouse in smartphones, semiconductors and televisions, died on Sunday after spending more than six years in hospital following a heart attack, the company said.

Lee, who was 78, grew the Samsung Group into South Korea’s biggest conglomerate and became the country’s richest person. But he was also convicted of bribery and tax evasion, and he and the empire he built were vilified for wielding huge economic clout, and for opaque governance and dubious transfers of the family wealth.

“Lee is such a symbolic figure in South Korea’s spectacular rise and how South Korea embraced globalisation, that his death will be remembered by so many Koreans,” said Chung Sun-sup, chief executive of corporate researcher firm Chaebul.com.

Samsung Group affiliates’ 326.7 trillion won ($289.6 billion) in 2019 revenue was worth about 17% of South Korea’s gross domestic product, according to Fair Trade Commission data and a Reuters calculation.

Lee died with his family by his side, the conglomerate said.

At around 5 p.m. (0800 GMT), Lee’s son Jay Y. Lee, vice chairman of Samsung Electronics, wearing a face mask, walked into the Samsung Medical Center where a memorial was being held. The area for the memorial was limited to 50 people, a sign said. The funeral will be a small family affair, Samsung said. It did not say when or where the funeral would be.

Lee’s aggressive bets on new businesses, especially semiconductors, helped grow the conglomerate his father Lee Byung-chull built from a noodle trading business into a global powerhouse with assets worth $375 billion, including dozens of affiliates stretching from electronics and insurance to shipbuilding and construction.

“His legacy will be everlasting,” Samsung said in a statement.

The presidential office said South Korean President Moon Jae-in had plans to send condolence flowers to the funeral, and send chief of staff Noh Young-min and senior presidential secretary Lee Ho-seung to pay respects on his behalf.

“The leadership he showed will be a great example and courage for our companies as they overcome the crisis and challenges ahead amid difficult times we’re under due to the coronavirus,” President Moon was quoted as saying to the Lee family, according to the presidential office.

Lee is the latest second-generation leader of a South Korean family-controlled conglomerate, or chaebol, to die, leaving potentially thorny succession issues for the third generation.

Ruling party leader and former prime minister Lee Nak-yon praised Lee’s leadership, but said, “It can’t be denied that he reinforced the chaebol-led economic structure and failed to recognise labour unions.”

The death of Lee, with a net worth of $20.9 billion according to Forbes, is set to prompt investor interest in a potential restructuring of the group involving his stakes in key Samsung companies such as Samsung Life Insurance and Samsung Electronics. Lee owns 20.76% of the insurance firm and is the biggest individual shareholder of Samsung Electronics with a 4.18% stake.

Jay Y. Lee has been embroiled in legal troubles linked to a merger of two Samsung affiliates that helped him assume greater control of the group’s flagship Samsung Electronics.

The younger Lee served jail time for his role in a bribery scandal that triggered the impeachment of then-President Park Geun-hye. The case, being heard on appeal, is scheduled to resume on Monday. A separate trial on charges of accounting fraud and stock price manipulation kicked off this month.

“With Lee passing, Samsung Group is now facing the biggest governance shake-up since the merger between Cheil Industries and Samsung C&T” in 2015, said Ahn Sang-hee, a corporate governance expert at Daishin Economic Research Institute.

Agencies