Limestone Marble How Do I Become A Vendor Supplying Precious Building Stones (like Marble, Limestone, Granite) In The US?

How do I become a vendor supplying precious building stones (like marble, limestone, granite) in the US? - limestone marble

During a mission outside the United States, I found a supplier of natural stones (granite, marble, etc..) Quarry is located a few miles from my hotel. I went to him 2 weeks ago. It's incredible

Can you tell me how to be a supplier or a seller in the U.S.? I will be in the U.S. as soon as this action is over in 3 months or less. I intend to participate in this endeavor, when I returned to the States --