As non-participating tools to outcome of a mining project or making an investment, private royalties are complex provisions and agreements that reflect the degree of business planning, local risks, and include the assumptions of future exploitation.Developed as a contractual practice in large mining companies, these clauses have been improved during use and as a result of incidents or case laws, so the current can be us...

The local tax for drilling and excavation and consequently issuing of the required authorization, have been applied in a divergent way and causes considerable fiscal burden for contributors acting in mining industry. In many situations these obligations have been illegally set, therefore we propose a legal reading of the rules from the perspective of both ordinary and constitutional judicial practice. We also analyze hereinafter the exc...