In the 1990s, when the Taliban was formed and the US had an arms embargo on Pakistan?

Having an arms embargo doesn't mean you don't sell them weapons, apparently. It wasn't a whole lot of stuff though..

https://www.latimes.com/archives/la-xpm-1992-03-06-mn-3321-story.html

But just score free points in this quiz, the answer is "China, but they developed a pretty major arms industry themselves during the embargo"