Last week Jereh Group, an oil and gas company based in Yantai, identified the executive as Bao Yuming, saying that it had ended its relationship with the 48-year-old over the allegations.

Bao also stepped down as independent non-executive director of Chinese telecom firm ZTE last week.

In interviews with mainland media over the weekend, Bao denied all allegations of sexual abuse with a young woman, who was reported to have become his adopted daughter four years ago.

In interviews with mainland media over the weekend, Bao said he did not adopt the young woman four years ago, saying that it was not legally permissible because he was not married.

Instead, he described their relationship as consensual and a romantic one.

He also said that he had already given evidence, including text message exchanges with the woman and surveillance videos, to police to support his position.

Police authorities in Zhifu district in Yantai confirmed on Wednesday that they received complaints from the woman in April last year and said their investigations showed no criminal offence was committed.

They said that they reopened the case in October after the woman submitted new evidence and that investigation was still under way.

Zhifu district police did not answer calls on Monday. Attempts to contact Bao were not successful.

Beijing-based lawyer Lu Xiaoquan, who represents the woman, told the South China Morning Post that she had been through “severe trauma”.

“She is in a very bad [psychological] condition now,” Lu said.

He said the woman was just a teen during the period related to the claims and that a wide range of factors should be considered while looking at the case, including her age and social status.

“An important thing worth considering is that under such circumstances, was she really able to understand what she had said and done, and was she really capable of expressing her own will?”