Considering the core of their business has always been based on...

Considering the core of their business has always been based on providing services to the mining industry, of course it's applicable. Obviously not right at this moment, but no doubt as new mines pop up they're going to need SMP and E&I services. Centrals use to do tonnes of civil work and still have a lot of plant & equipment that they own outright I believe, so they'd be a contender for any pre-strip works required also. Building townhouses is really just something they've begun doing to maintain some sort of cash flow while the mining industry is quiet