Prosecutors seek 25 years in prison for Choi Soon-sil
Special Counsel Park Young-soo and state prosecutors also demanded the court order Choi Soon-sil, 61, to pay a fine of 118.5 billion won ($109 million) and forfeit 7.7 billion won.
Choi was arrested and indicted in November last year on 18 charges, including abuse of power, coercion and bribery.
Her charges center on the alleged collusion with the former president to extort money from Samsung and other conglomerates, and interfere in state affairs. She stands accused of pressuring 50 conglomerates to donate 77.4 billion won to two foundations allegedly controlled by her.
Prosecutors also demanded a four-year jail term for Shin Dong-bin, the chairman of retail conglomerate Lotte Group, for bribing Choi with 7 billion won. They demanded he forfeit 7 billion won.
They demanded six years in prison and a fine of 100 million won for An Chong-bum, then senior presidential secretary of policy coordination, for collaborating with the key suspects in the case and taking kickbacks from a local plastic surgeon in return for business favors.