The Koforidua-based side are anxious of ending a long-wait for national crown after playing catch-ups in the past three years.
With centre engine, Emmanuel Wolf at the peak of his game, it was always going to be extremely difficult for the Volta Regional-based side.
Ketabusco started on a positive note as their opponent looked quite jittery and unprepared for the fixture.
They took a 20-18 lead in the first half before KSTS rallied back in the second half to pull victory right under their feet.
The defeat ends Ketabusco’s ambitions in the prestigious competition this year and KSTS continues their quest of winning their first national title.