From CAAS webpage,
Air Traffic Controllers are also provided with sponsorships, of up
to 90% of the expenses in taking flying lessons, towards obtaining
a Private Pilot License (PPL). Those who possess a valid PPL are
also reimbursed up to 50% of the total expenses in maintaining the
PPL. Your starting gross salary will range from $20, 000 to $37,
000 a year (including bonus) depending on your educational
qualifications.