Can we give probability of tazkia to the leather products made in China, Italy, Portugal, Brazil and India. These products are purchased from UAE but made in above mentioned countries. As is the leather najis or tahir?
What is the critera of giving probability for tazkia.

We can to the products of Italy and India.
For the rest, I have no idea whether they are importing leather from Muslim countries or not, and what is the Muslim population there.