The main point of trade and business outside of the stores, the miner exchange trades for minerals and gems and pays out the respective value to the miners in the town, it also acts as a money exchange so if people need an exchange from gold to silver coins, they go to the miners exchange to trade these coins. It also holds records of land claims and excavations happening in the lands surrounding Phandalin. The place is run by Halia Thornton, a young ambitious woman that seems to run the town when Harbin is locked away in his house after the dragon attack. Most of the mining still goes on even with the threats so there will still be miners coming and going from the exchange.