Absolutely. Selling building materials can be a really great business if you're dedicated and focused. It sounds like your director is doing well as a cement, zinc, nails, and rods dealer. And not just your director, but his friends who are also in the same business are thriving too. I totally agree that it can be one of the best businesses to get into, especially if you have the capital to start with. Building materials are always in demand, so it's a smart choice. Good luck, it's beautiful you advertised your business.