I guess you applied for a position at SPRING Singapore.

The progression for a fresh grad at SO to a Mgr is usually 1yr 9 months to 2 years. While I do not know what you've done and achieved in this 1.5 years, I strongly believe they will only offer you a SO position, and the most a faster promotion towards Mgr.

Keep your hopes up, but don't expect too much. Without a genuine interest in the work there, you'll have a hard time surviving there.