In 2006, it was announced that SK Group may buy the company; however, the deal was never agreed.
Hyundai and SK Group have been implicated in separate scandals involving both presidents.
SK Group has more than 30,000 employees who work from 113 offices worldwide.
SK Group began when the current founders acquired Sunkyung Textiles in 1953.
In July 2007, SK Group adopted a holding company structure.
The SK Group announced today that the transaction would be reversed.
That disclosure resulted in fraud charges against 10 senior executives of the SK Group, all of whom were found guilty.
This time around it is the SK Group in the harsh spotlight.
SK Group ignited controversy by acquiring an 11.34 percent stake in KT when the company became private.
The battle revealed rifts within the SK Group, whose 59 affiliated companies had total sales last year of 54 trillion won ($45 billion).