China:
APFSDS
1992? 125-I
late '90s? 125-II
HEAT
1992? 3BK18 equivalent?
HE
1992? 3OF19 equivalent?
Comments: Precise service dates are not available, but China is believed to have fielded two APFSDS rounds, as well as generic HEAT and HE rounds for its 125 mm tanks. The 125-1 APFSDS round is available for export, and has been adopted by Pakistan. Very little information is available about the 125-II, and its performance figures are largely hypothetical.
Some claims on Chinese perpetrators have an issue of credibility, as it is written their 125mm could penetrate 900mm+ or 1000mm+ RHS at the moment of deployment... To my knowledge PLA tanks used Rapira-based guns and Carousel auto reloader or something similar with Carousel. (Type 99 and Type 96, before upgrade) Despite of assistance from Israeli tech, it is hard to believe their 125mm at late 1990s would penetrate more than 600mm. I was thinking of 550mm~600mm at 2km. But I can be totally wrong.
Pakistani 125mm for Al-Khalid was based on Type-96 and 125-I apfsds is about 450mm.
https://pof.gov.pk/catalouge/Anti_Tank_Ammo.pdf
I will update KPA / PLA apfsds and heat round info in this post.