Cha Eun-taek worked closely with Choi Soon-sil, ex-Presidential Secretary Ahn Jong-bom to try to control the sports and culture industries.
President Park is alleged to have conspired to coerced Korea Telecom into giving millions of dollars in advertising to companies owned by Cha Eun-taek. She also ordered KT to employ two acquaintances of Choi Soon-sil. Then, she ordered KT to change the two employees positions, so that they could be in charge of advertising.
President Park is also accused of conspiring in the attempted take over of Poreka (an advertising company recently sold by POSCO under suspicious circumstances). She is supposed to have ordered to her aide to make sure that no big business groups won the bid to purchase Poreka, in an attempt to have a Cha Eun-taek company win the bid. It failed and another company won the bid. So, they tried to take over that company.
Korea Herald: Cha Eun-taek Faces Multiple Charges
Korea Times: More accusations made against President