UK-Listed Mining Companies

My hon. Friend must be aware that high-value rare earths and minerals—coltan, diamonds and so on—are often smuggled out of countries such as the Congo, which is possible because they are dealt with in relatively small volumes. Neighbouring countries re-export them and then they are bought by dealers around the world. We will find that the traceable line almost disappears unless we force the countries that host the headquarters of a number of the dealing companies, such as Switzerland, to be part of the transparency process.