Just thinking and I don't know how you would go for shipping to Lebanon, you may get lucky but since Slovakia is part of the EU you should be able to possibly order from Amazon. You may need to browse the .uk, .de , .fr etc... domains but they have loads of products and you may come across the right one.
For example a quick search for moler clay cat litter brought this up....
https://www.amazon.co.uk/Sanicat-Pi...4123209&sr=8-1&keywords=cat+litter+moler+clay
Not sure if it is the right stuff and it's a bit pricey but you get the idea. I'll keep digging.