This conference is the largest conference related to mining in Europe outside Great Britain, although the mining part of it is a lot smaller than its overseas counterparts, due to lots of precious metals bullion/coins dealers, which is a big deal in Germany and Switzerland. The number of exhibiting mining companies varies from 40-100 for the last years. Although there are predominantly German speakers, some big names from around the world were invited as well: Ross Beaty, Marc Faber, Robert Friedland, Rob McEwen, Rick Rule and Eric Sprott were contributors of this conference in the past.