Donating to his former school's new fund was a great way to celebrate a milestone, Chris Lock thought.
The former John Paul College student has become the first foundation donor to the school's alumni fund.
Mr Lock, who now owns a printing business, left the school 10 years ago and said he was delighted to be able to give back in this way.
"I enjoyed my time at the college; one of the highlights was taking part in the Young Enterprise Scheme, which gave me the drive and offered scope for what was possible if I were to go into business.
"I think the alumni fund is a great idea and I particularly like the fact that it is perpetual, so the capital is retained forever."