Iran
Not explicitly stated, but likely Quarry + Processing given the products.
In the early 1960s a committee was formed in Trentino, Italy. Since the members were aware of the importance of porphyry stone in developing the local economy, they expanded its exploration and extraction with the help of other willing companies. Growth in this trade led to the development of working techniques and equipment in mines.
bekra-iran-stone.smartstones.us
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