Subject. This article discusses the issues related to the taxation for multi-component complex ores and commercial components using ad valorem and specific mineral extraction tax (MET) rates. Objectives. The article aims to assess some results of the application of specific MET rates in the Krasnoyarsk Krai and ad valorem rates in other subjects of the Russian Federation, taking into account the specifics of the current taxation procedure for multi-component complex ores and their commercial components. Methods. For the study, I used a comparative analysis, synthesis, and the method of extrapolation. Results. The article shows that the change in the type of MET rate for multi-component complex ores and commercial components has led to a significant increase in the effective tax rate. This led to an increase in the corresponding MET revenues in the Krasnoyarsk Krai. The article also substantiates that the introduction of specific rates in other Russian regions requires a significant differentiation of specific MET rates. However, this is risk-bearing concerning unfair distribution of the tax burden and the complexity of tax administration. Conclusions. The issue of identifying multi-component complex ores and their commercial components is controversial. Extending specific MET rates to other regions may complicate the mechanism of rent extraction.