 At her peak, STS had over 25 teachers and over 600 pupils.The school fees in 2007-8 were about HKD1,400-/month for primary school pupils and about HKD1,200-/month for Kindergarten pupils.STS attracted not only local Chinese pupils, but also had a smaller percentage of pupils from families of different nationalities including Portuguese, British, American, Swiss, Italian, Japanese, Korean, Vietnamese, Indian and Indonesian etc.