Billionaire Bill Gates has not commissioned a hydrogen-powered superyacht from designer Sinot, the firm has told the BBC.
It has been widely reported that Mr Gates ordered a £500m ($644m) luxury vessel, based on the concept which was displayed in Monaco in 2019.
Sinot said it had “no business relationship” with Bill Gates.
The finished concept vessel would be 112 metres long, according to publicity material released by Sinot. It would be capable of a top speed of 17 knots, and have a range of 3,750 nautical miles (6,945 kilometres).