Can you post a couple links to the reading that you've been doing? We can try to help you understand the information if we see what you've been reading. Thanks.
That seems to be a good link, with information about where the ores are and how they are mined. Are there parts of the article that you are not understanding?
I'm having a hard time distinguishing your question from "please tell me everything about mining and isotope separation". Can you explain what you want? You will probably need more than a sentence.
This thread can't really go forward with such a broad question.
@Flexwheeler -- after you do more reading on your own, if you still have a specific question or two about that reading, please send me a message and we can try to re-open this thread for you. Until then, this thread is closed.