Gunadie is correct, there is no such bonus allocated to SSC Thailand group, or any SSC group in any other location globally.
The bonus you are referring is management discretionary bonus, based on discretion of senior management for selected individual, which is in general based on company performance and individual performance. This bonus is not offer to everyone, or to a particular department for the manager to decide who he/she would like to allocate to. The final review and decision solely from senior management on the recipient and the amount.
Perhaps Panita was tried to explain the bonus not necessary for everyone.