Simpler way to address a letter?

I have to send a letter to CPF. They asked me to mail it to the following address:

CPF Minimum Sum Topping-up Scheme (Retirement Services Dept)
CPF Board
79 Robinson Road
CPF Building
Singapore 068897

Here is a shorter way to address the letter:

CPF Retirement Services Dept
Singapore 068897

I wonder if my letter will arrive there?

I shall try to post a letter to myself as follows:

Tan Kin Lian
Singapore 809744