Who bought Vulcan materials?

Can you tell me who exactly was the buyer of the Vulcan materials? Was it an individual or a company? Did they have any prior experience working with Vulcan materials before? Was there a particular reason why they chose to purchase them? Was there any bidding process involved or did they simply make a direct purchase? Were there any negotiations regarding the price or terms of the sale? And finally, what was the intended use of the Vulcan materials that they purchased?