The reaction pathways of adsorbed CH3 on the Mo2C/Mo(111) surface were investigated by means of temperature-programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS) and high-resolution electron energy loss spectroscopy (HREELS). CH3 fragments were produced by the dissociation of the corresponding iodo-compound. CH3I adsorbs molecularly on Mo2C at 90 K and dissociates at and above 140 K. The main products of the reaction of adsorbed CH3 are hydrogen, methane and ethylene. The coupling into ethane was not observed. The results are discussed in relevance to the conversion of methane into benzene on Mo2C deposited on ZSM-5.