Lee Jae-yong — the 278th-richest person in the world, according to Forbes — was released on parole in August 2021, after serving 18 months in jail, just over half of his original sentence.
Both Park Geun-hye and Shin Dong-bin, chairman of the retail giant, have denied the accusations that they were involved in exchanges of presidential favours for large sums of money.
Park Geun-hye could face more than 10 years in jail if convicted of receiving bribes from bosses of big conglomerates in return for favours.
Local media accused the country's president of being a puppet of a Shamanic cult, and that has angered many people.
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