Well, we did.
Naval News piece on Hai Kun did mention Taiwanese creating a local substitute.
"Originally, the IDS would feature a license-produced ZOKA Torpedo Countermeasure System from ASELSAN, a Turkish defense contractor; however, as the Turkish government was tied by political factors, this plan didn’t go forward. Instead, after analyzing the ZOKA system, the National Chung-Shan Institute of Science & Technology was able to develop a domestic Torpedo Countermeasure System and integrating it into the IDS with two 6 shot canisters mounted on each side of the submarine, enabling the IDS to counter active and passive homing torpedos with soft kill capability."
Taiwan’s silent service enters a new dawn with the unveiling of the long awaited Indigenous Defense Submarine.
www.navalnews.com
Reads pretty similar to how Pulat came out of Zaslon actually.