Dr. Mirosław Lebiedziejewski died at the age of 88 on September 14, 2020. He was one of the co-founders of the Polish Carbon Society (Polish Graphite society), which was formed during the 9th Polish Graphite Conference in Zakopane in 1988. In the years 1988 – 2001 he was the vice-President of the Society. Dr. Lebiedziejewski was an undisputed authority in the field of carbon and graphite, the author of many important publications on the technology of graphite electrodes production and patents in this field. In the years 1968-91 he was the director of Sądeckie Zakłady Elektro-Węglowe, between 1991-96 he was the president of the Management Board of "POLGRAPH" SA, in the years 1996-97 he was the President of the Management Board of SGL CARBON SA.