MKS (Switzerland) is a precious metals and financial services group of companies specializing in processing, trading and refining gold and other precious metals. It has over 50 years of experience, over 700 employees worldwide and more than 16 offices on five continents. It has increased from a net worth of US$ 7 million in 1980 to US$ 500 million in 2012. It is one of the few groups in the world with two London Good Delivery gold refineries.