
It remains an unanswered question, although some say he makes money by trading on his mother's name.
His mother apparently agrees, in a fashion. She is widely credited with having said, "Mark could sell snow to the Eskimos and sand to the Arabs." He has managed to find plenty of buyers for his snow and sand. Thatcher's net worth was recently estimated at $100 million.
His biggest score came in 1985, when he reportedly pocketed an $18 million commission for helping to negotiate a $30 billion British arms sale to

Mark Thatcher is viewed as the sort of person who could fall under the influence of a swashbuckler like Mann. Thatcher's reputation in his homeland as a "mum's boy" gnawed at him, especially because he fashioned himself an adventurer.
Most of his risk-taking has landed him in the newspapers, from the lost-in-the-desert debacle to intermittent allegations of impropriety - tax delinquency in Texas, a loan scheme in South Africa, another huge commission on a construction project in Oman.
In 2003, when Denis Thatcher died, Mark inherited his father's "baronet" title, bestowed in 1991 in recognition of his wife's service. While Sir Mark has had his flings, he had faced nothing as serious as his African troubles.



