SEOUL, Jan. 13 (Yonhap) -- Samsung Group, South Korea's biggest business conglomerate, is bracing for a possible leadership vacuum as the group's de facto chief, Lee Jae-yong, was questioned as a suspect in the corruption scandal that led to the impeachment of President Park Geun-hye.
Special prosecutors investigating the scandal questioned the vice chairman of Samsung Electronics for about 22 hours, and they are considering seeking an arrest warrant against Lee, the only son of ailing Samsung Electronics Chairman Lee Kun-hee.
Samsung is accused of allegedly donating 20.4 billion won (US$17.2 million) to two foundations set up by Park's longtime friend, Choi Soon-sil.
Samsung also signed a 22 billion-won consulting contract in August 2015 with a Germany-based firm owned by Choi and allegedly sent the company 3.5 billion won to fund her daughter's equestrian training, according to prosecutors.
Samsung denied the prosecutors' allegations, claiming they are not related to a 2015 merger of its two affiliates that was seen as important for the junior Lee's succession plan.
With special prosecutors weighing the fate of the junior Lee, Samsung officials expressed worries that the group's key businesses would hit a standstill if the vice chairman is arrested.
As the scandal has engulfed the group for months, Samsung has not conducted its annual personnel reshuffle and failed to lay out its business targets for this year.
"Key business decisions are being delayed at a time when we need to revamp our organizations to meet a rapid change in the business environment," a Samsung official said.
Last November, Samsung Electronics announced a $8 billion deal to acquire Harman International Industries Inc.
Some shareholders of Harman are expected to vote against the deal because they argue that the price was not sweetened enough.
Samsung officials also voice worries that the Harman deal may be negatively affected by the corruption probe.
The junior Lee, who is banned from leaving the country amid the allegations, appears to be skipping some global conferences he had regularly attended before, including an annual Boao Forum in China, group officials said.