A lawyer for pachinko machine maker Universal Entertainment Corp. offered to pay a former employee if he retracted a claim that the Japanese company had given bribes to advance a Philippine casino project and stopped cooperating with investigators, according to a copy of the proposal seen by Reuters.

Universal's lawyer, Yuki Arai, presented the proposal to a lawyer for the former employee in July 2013, a time when the FBI, the Nevada gaming regulator and the Philippine government had started probing $40 million in payments made by affiliates of the company in 2010 to a Philippine consultant.

In the two-page proposal sent by fax, Arai wrote that the former employee, Takafumi Nakano, would receive a "certain level of compensation" if he abided by a series of terms. No monetary figure was specified.