On November 10 and 11, the 37th International Cokemaking Conference was held. The conference took place in Ostrava in the Czech Republic, and was attended by over 100 representatives of several dozen companies related to the cokemaking industry and research companies from various European countries. At the conference, a poster was presented: The influence of charcoal addition to coking blend on quality parameters of produced bio-coke. The poster shows the current results of the assessment of the charcoal addition (to the coking blend) on the quality parameters of produced bio-cokes. The tests were carried out for the conditions of the gravity charged and stamp charged coke oven batteries. The obtained results are promising and met with the interest of the conference participants.