If memory does not fail me, I was first acquainted with the Fuzhou oyster cake more than two decades ago in a coffeeshop next to the Commonwealth Theater which is one of the two cinemas (the other being Empress Cineplex) in Clementi.
Commonwealth Theater has since been torn down and redeveloped into the current Cityvibe. The oyster cake stall has also closed down before the destruction of Commonwealth Theater began.
Its new location or whether it is even in operations for that matter, remains unknown.
Those were the days when the age of internet (and mobile phones) were still not as widespread therefore I have no means to track it down.
And that, was last time that I had had any oyster cake.