Yes. So North American Mining, I apologize, but we're going to do a little bit of history here, right. North American Mining came back in 1995, was the origin of this, working with the customer that we still work for in Southern Florida. And we were -- they were looking for somebody that had dragline operating expertise and we started helping them. That grew somewhat until 2015, over that 20 years. And then in 2015, we really started focusing on how do we grow this business pretty substantially. That led us to really take a deep dive into what is our, what are our unique skills that give us a competitive advantage in this space? Well, one of those competitive advantages is we are told by one of the largest equipment manufacturers in the world that they believe that we operate more draglines than any other company in the world. Let's say there may be some countries who operate more, but they think we operate more than anybody else. So you start fundamentally with a unique piece of equipment that requires some specialized skills in order to get the full productivity capabilities out of that piece of equipment. Now you take that to Florida and it's even more specialized because in Florida primarily we're mining under in quarries where the aggregates are underwater. So it's a further specialization of the skill. And we're really the only people that are doing that at any scale at all in the United States. There are some small players out there, but they tend to have smaller equipment. They're sort of much smaller businesses than we are. They don't have the resources to really approach this business like we do. Now, Florida is not the only place that has quarries where you're mining underwater. I will tell you one of the contracts that we have signed with an existing customer, we will be mining starting in 2026. Starting in 2026, we're going to be mining underwater in Arizona. I will tell you when we first heard about this, I said there's no way that they're mining underwater in Arizona because the water table must be so low. That's not actually the case. So this is an opportunity for us to do the same thing in Arizona and it can be done other places in the country as well. So there's probably plenty of opportunities for us to continue to expand this business, which we view as operating a very specialized piece of mining equipment in a unique way. When you get beyond draglines mining underwater, you'll note that we've also been using surface miners, both in our coal operation, which we've been doing for a long time, for sort of surgical extraction of coal. But we've been operating a surface miner, which is like when you're driving down the road and you see those milling machines that are chewing up the pavement and putting it into a truck. It's the same kind of machine we use except much, much larger and obviously with much stronger extraction capability. So we have been using a piece of equipment like that to help a customer extract limestone. And the advantages of that are you don't have to -- the customer doesn't have to crush it to the same extent because the machine already grinds it up. And you don't have to incur blasting. So you think about quarries in fast growing areas, we don't operate in Syria, but I'm just going to say there's quarries around San Antonio. When you think how San Antonio has grown tremendously in the last several years. They now have businesses and housing closer to these quarries and they have trouble with blasting. These are dry quarries. We think that this is a piece of equipment where, again, we've got very specific expertise where we think that we can go provide this service to others in a way that will be good for their business. Now, in every instance our main competition for the work that we do is the quarry operators themselves. I would say a majority of quarry operators do their own mining. Well, as we work with more and more of these guys, we see that there are lots of opportunities to bring our expertise to the table and let them, they want to focus on what they're good at, which is reading their market, securing their reserves, processing it in a proper way, selling it and all that. Their expertise doesn't necessarily lie in mining. So this is where we come in and we think that we can provide the mining services for them in a way that is more economical and effective than they can do themselves. And we can do so, so we can save them money and we can make enough of a margin that is attractive to us. So that's really the framework around this business. Now with respect to the aggregates, that's an aggregate quarry is a pretty simple thing where you're extracting the aggregate, you're crushing it, you're selling it. We're doing the same thing at Sawtooth in Northern Nevada for the lithium mine, except there instead of just running the extraction equipment, we're actually running the whole mine. It's much more like a coal mining operation where you've got to split the top soil and do permitting and do all this work to ultimately extract the resource. So it's the same kind of very specialized mining, but in a very traditional way with respect to the lithium mine. It's a long answer, but I hope that's helpful.