This work analyzes and compares the legal framework for foreign investments in the mining sector in Australia, South Africa and Colombia. The admission of foreign investments, corporate structure requirements, ownership of minerals and mineral rights, mining licenses, land access, performance requirements, distribution of profits and the tax regime, repatriation of profits, national and international dispute resolution mechanisms and the question of the Social License to Operate (SLO) / Corporate Social Responsibility (CSR) policies are discussed in detail. The work concludes with an outlook on the future regulation of foreign mining investments and finally suggests the development of an International Mining Investment Law.