Two new titanium complexes having two phenoxy-pyridine chelate ligands were synthesized and investigated for their potential as ethylene polymerization catalysts. On activation with Ph3C+B-(C6F5)(4)/ i-Bu3Al, one of the complexes, bis[2-(2'pyridyl)phenolato] titanium complex, exhibited high activity (227-564 kg-PE/mol-cat.h) and produced high molecular weight polyethylene (M-v; 140000-3230000) at 25-75 degreesC.