South African Albertse, who headed into moving day with a two-stroke advantage, remains at 12 under par following a level-par 70, whilst Harding posted a three under third round of 69 to join his compatriot on the same number.
Harding, who was three strokes adrift heading into the weekend, birdied all four par fives at Killeen Castle and dropped just one shot to set the clubhouse target.
“I played pretty well today,” he said.
“I kept it in play off the tee and gave myself a lot of chances. I’m still waiting for a day like Thursday where you pour them in and the lines jump out at you. I’m happy where I’m at.”