Hyperloop is a futuristic high-speed train concept made up of passenger "pods" traveling in a vacuum. Virgin Hyperloop One has a handful of projects in the works, including in the United Arab Emirates, Spain, India, Ohio and Texas.
Branson, Virgin Group's founder and chairman, is among a handful of business leaders to decide not to attend an investment conference in the country after it was accused of involvement in the, a Saudi dissident and journalist who was living in the U.S. Khashoggi hasn't been seen since he entered the Saudi consulate in Turkey on Oct. 2.
At the unveiling of his star on the Hollywood Walk of Fame on Tuesday, Branson said he wants a "satisfying explanation" regarding Khashoggi's disappearance.
"Well, if it's true that Saudis killed and cut up a journalist in Turkey, then I don't think any business could do business with a country that behaves in that way," Branson said. "We have suspended all our dealings with Saudi Arabia until and unless we have a very satisfying explanation. It's pretty horrific what we've all heard, and nothing yet has changed our mind on it."
Branson said last week that he wason two Saudi tourism projects and curtailing talks of Saudi investment in two other projects.
"What has reportedly happened in Turkey around the disappearance of journalist Jamal Khashoggi, if proved true, would clearly change the ability of any of us in the West to do business with the Saudi Government," he said in a blog post.
Several hours after the post, Virgin Hyperloop One was disinvited from the conference, the FT reported.
Many American financial and media companies haveof the conference, known as the Future Investment Initiative, or said they won't attend this year. They include Uber, The New York Times, Viacom, CNN and Bloomberg. Former U.S. Energy Secretary Energy Ernest Moniz and Arianna Huffington have also said they won't attend.
Treasury Secretary Steve Mnuchin is still planning to attend.