Prosecutors charged Shin without detaining him.
The probe by prosecutors has already convulsed the biggest conglomerate, Samsung Group, with its chief Jay Y. Lee under arrest for bribing Park and her friend, Choi Soon-sil. All three are being held at detention centers, Reuters reported.
Prosecutors accused Park of colluding with Choi to receive 7 billion won ($6.16 million) from Lotte for favors, they said in a statement. Park was also charged with abuse of power and coercion by pressuring big businesses to contribute funds to non-profit foundations, the prosecutors said.
Lotte has denied allegations that it made improper deals with Park, or those linked to her, for favors. Park, Lee, Choi and Samsung Group have also denied wrongdoing.