Lived in Taiwan for 14 years and saw a couple of times, believe it or not, an ex WW2 US Navy diesel sub sailing out to sea in 1992. It was at that time based in Kaoshiung, southern part of the island. That got me slightly hooked to subs and SH / SH2 did the rest. I still prefer WW2 flying machines tho...
Anyway, for those interested, I seem to remember that a Taiwanese friend who served in the ROC Navy during his military service told me that 2 or 3 of these were still operational in early 2000. Same class as the USS Pampanito anchored in SF.
Amazing what good care and love can do. I certainly hope they won't have to face any modern sub killer in the Taiwan Strait