On October 21, the 5th Mineral Engineering Conference 2020/2021 was held. The conference was held on-line. At the conference, an employee of the Institute for Chemical Processing of Coal, Dr. Eng. Michał Rejdak gave a lecture presenting selected results of the project with the acronym BioCoke4FAI (Bio-coke for ferroalloys industry production), concerning the impact of the addition of commercially available charcoal on the mechanical strength of the compacted coal charge. This form of coal charge is used for the production of coke in coke oven batteries using the stamp-charging method. Therefore, from the point of view of industrial production of bio-coke based on coal-biomass blends, the assessment of the impact of the addition of bio-components on the strength parameters of the coal charge is very important.