Christian Horner has been cleared of wrongdoing following allegations of inappropriate behaviour by a female colleague, with Red Bull’s parent company in Austria saying it is satisfied its investigation was “fair, rigorous and impartial”.

The Red Bull team principal is due to land in Bahrain on Wednesday evening and will be in the Formula One paddock on Thursday before the opening race of the season on Saturday.

In a statement issued at 3.30pm UK time on Wednesday, Salzburg-based Red Bull GmBH, which appointed an external specialist barrister to look into the claims, said the claimant had a right of appeal, but that as far as it was concerned the matter was over.

It added that the report was “confidential and contains the private information of the parties and third parties who assisted in the investigation” and therefore would not be shared publicly.

The statement read: “The independent investigation into the allegations made against Mr Horner is complete, and Red Bull can confirm that the grievance has been dismissed. The complainant has a right of appeal. Red Bull is confident that the investigation has been fair, rigorous and impartial. The investigation report is confidential and contains the private information of the parties and third parties who assisted in the investigation, and therefore we will not be commenting further out of respect for all concerned. Red Bull will continue striving to meet the highest workplace standards.”

There had been reports in recent days that the claimant might consider legal action if her grievance was dismissed. It remains to be seen whether she appeals.

It is also unclear whether that will be the end of the matter from the point of view of Red Bull’s key sponsors such as Oracle, Ford, Visa and TAG-Heuer.

In a letter sent to Red Bull last week, leaked to the Associated Press, Ford chief executive Jim Farley wrote that he was frustrated “by the lack of full transparency surrounding this matter with us, your corporate partners” adding that his company’s values were “non-negotiable” and calling for a “resolution we can all stand behind”.

Rival team principals such as Mercedes’ Toto Wolff and McLaren’s Zak Brown had also called for “transparency”. Both Wolff and Brown have been selected for the main FIA press conference in Bahrain on Thursday.

Horner’s future was thrown into doubt earlier this month when it emerged that Red Bull Austria had opened an investigation into his conduct following the allegations from an unnamed female employee.

The allegations, which had been made some weeks earlier, were initially characterised internally as “controlling” and “coercive” behaviour.

A specialist external barrister was appointed by Red Bull to carry out the investigation, with Horner interviewed over the course of eight hours on February 9. The following week, at the launch of the RB20 in Milton Keynes, Horner declared he was “confident” he would clear his name.

Horner cleared after investigation into behaviour – as it happened