Seoul, Jun 11 (IANS): The South Korean Supreme Court on Thursday upheld a previous decision on a longtime friend of jailed former President Park Geun-hye in an influence-peddling and corruption case.

The apex court confirmed the previous ruling by the Seoul High Court in February that sentenced Choi Seo-won to 18 years in prison on a string of corruption charges linked to a massive influence-peddling scandal that ultimately led to Park's removal from office in 2017, reports Yonhap News Agency.

The court also ordered her to pay a fine of 20 billion won ($16.9 million) and forfeit 6.3 billion won.

Choi did not attend the hearing.

The decision showed "the limit of the judiciary" and that the court failed to hold a fair trial by ensuring it was "not influenced by public opinions", her lawyer Lee Kyung-jae told reporters.

The final court ruling was reached three years and seven months after prosecutors arrested Choi in November 2016.

The 64-year-old was convicted on charges of exploiting her ties with the former President and forcing 50 companies to cough up a combined 77.4 billion won for two non-profit foundations she controlled.

She was accused of meddling in state affairs and gained access to confidential government files even though she held no official position or authority in the Park government.

In the first two trials, Choi was sentenced to 20 years in prison, reports Yonhap News Agency.

But the Supreme Court sent Choi's case back to the Seoul High Court in August last year, saying she should be considered not guilty of some of the coercion charges.

In a retrial in February, the court reduced her jail term by two years and slashed her forfeit to 6.3 billion won, while keeping her fine unchanged.

Throughout her trials, Choi pleaded not guilty, arguing that all the charges were fabricated under the pressure of public opinion.