Interesting, didn't know that about the FReepmail. From this poor old CPU, I can't load your link, but will check it later. Probably Edom?.
With advanced techniques of chemical analysis, and archaeological analysis and microscopic investigation we were able to understand how people were making copper and to find out if it was organized by one central body of people.
...something big was going on quite early, at least as early as the 11th century BCE, ....
The researchers say that the copper production seems to have been occurring just when the Bible says that the kingdom of Edom was in existence.