The first step of the trial was for charges to be filed. The next part was using those charges to request his extradition. At this point you could say the extradition hearing is not a part of his trial, but it is only happening because of the trial and the US is the reason he is in prison currently.
I'd write this off as weird pedantry but you're accusing me of lying for some reason.
This entire conversation would be much more productive if you did more than just say I'm wrong or lying.
All of this seems like parts of the pretrial layed out by the US constitutional criminal procedure. I guess you could distinguish trial from pretrial, but if that was your point you really could have just stated that right away.
It doesn't matter whether it's the "first" step or an "early" step. It doesn't matter if the entire process is being summed up as "trial", even though parts of the process are not technically part of the trail.
I'd write this off as weird pedantry but you're accusing me of lying for some reason.