Neither, China gave Pakistan a production license and ToT for most of the tank, however the design manuals and plans were rather…bad. HIT to reverse engineer a lot of things, many other parts were replaced with locally designed ones too.
It started out with HIT only assembling Chinese kits, slowly indigenization has been brought up to 40%. The eventual goal is to indigenize everything economically feasible, so maybe around 70-80% of the tank by parts? This is a much larger % than AK. For reference the newest T90MS India produced locally had 83% indigenous content, including the entire engine, however due to licensing issues some very basic parts like gun barrels and tracks are still made in Russia for those.
It’s highly unlikely we’ll see Pakistan make engines and gearboxes for these, and certain high-end steels and composites might still come from China. All of these can technically be made locally, but it won’t be economically feasible.