Dichlorobis(3-hydroxi-2-methyl-4-pyrone)Ti(IV) complex was grafted on different inorganic supports, namely different kinds of SiO2, MAO-modified silica, MCM-41, Al2O3, ZrO2 and MgO. The resulting supported catalysts were shown to be active in ethylene polymerization using methylaluminoxane (MAO) as cocatalyst, most of them being even more active that the homogeneous complex. The highest catalyst activities were observed for the Ti complex supported on SiO2 948 activated at 450 degrees C, MCM-41 and Al2O3. (c) 2005 Elsevier B.V. All rights reserved.