If you are a subscriber of SIMBA (formerly known as TPG mobile), it is confirmed that the 5G NSA trial is still ongoing. Users from the FB group has confirmed that 5G NSA is detected in Vivocity and Marina Bay Sands. According to the post, a POCO M4 Pro 5G was used in the test. It is also detected to work on the Redmi Note 11 Pro 5G.
We tested the Xiaomi 12 Pro last week at Marina Bay Sands Shoppe by the Bay and it also detected the 5G.