A Seoul court is set to deliver its ruling on Samsung Electronics Co. Chairman Lee Jae-yong on Monday on charges of stock price rigging and accounting fraud connected to the controversial 2015 merger of two Samsung affiliates.

The Seoul Central District Court is scheduled to hold a sentencing hearing at 2 p.m. on Lee, three years and five months after the Samsung chief was indicted in connection with the merger of Cheil Industries Inc. and Samsung C&T Corp.

Lee was charged with stock price rigging, breach of trust and accounting fraud in the course of the controversial 2015 merger, where three Samsung C&T shares were offered for one Cheil share.

Prosecutors suspect that the group manipulated the stock market to inflate the prices of Cheil and drive down Samsung C&T prices through various unfair practices, including disseminating false market information, mass purchasing the affiliates' stocks and illegally lobbying the National Pension Service, a major Samsung C&T shareholder, to support the merger.

Prosecutors suspect that such irregularities had been pursued since 2012 in favor of Lee, who was the biggest shareholder in Cheil with a 23.2 percent share, and with the intent to help him tighten his control of Samsung C&T, the de facto holding company of Samsung Group.

The merger was seen as crucial to Lee's succession as the heir of the family-controlled group, as his father, Lee Kun-hee, had suffered a heart attack the previous year.

The suspected devaluation of Samsung C&T resulted in losses to other investors, prosecutors concluded.

Lee is also accused of involvement in the suspected accounting fraud at Samsung Biologics, a subsidiary of Cheil Industries.

Prosecutors demanded a five-year prison sentence for Lee, along with a fine of 500 million won ($373,550), pinpointing him as the ultimate person responsible for the alleged manipulation scheme.

Lee has denied the charges, claiming his personal interests were not considered during the merger of the affiliates. He has also pleaded with the court to acquit him so that he can "concentrate all resources on moving the company forward." (Yonhap)