Ziris Mineral Conglomerate

Near the small town of Kwin in the northern Faerun, there was a forest, somewhat detached from the main ones of the Faerun, where a small society of elves lived. The forest being scared to them, they killed trespassers but where otherwise non-aggressive. Citizens of Kwin, convinced the elves hid treasure, convinced the town government to hire a cadre of wizards. After being promised a share in the treasure, the wizards torched the forest. Autheshei is the only one known to have survived. With no sight of treasure in the ashes, the town of Kwin was forced to sell immense amounts of property to avoid going into debt.

A few years later, a child playing in what was formerly the woods, found a sizable chunk of pale blue ore. After bringing it home, it was revealed to be Ithryll, the valuable metal of incredibly hard strength despite not having magical properties (I pretty much renamed adamantine so it sounds less like wolverine). The family auctioned it off for a good deal of money to Olvick Ziris, one of the mages. Following this, Ziris set up an expedition, which  found the area to be surprisingly rich in the ore.

From there, Ziris eventually recruited the 9 other wizards and formed the Ziris Mineral Conglomerate, what is now the largest mining business in all of Ilyne. Over the course of a bit less than a century and a half, the small mine grew into a massive ½ mi^2 quarry and a tangled network of interconnecting mines. Kwin has grown significantly but quality of life has gone down. Most citizens work under dangerous mine conditions and live in houses rented from the Conglomerate. General Security is maintained by crude, but cheap, stone constructs along with mercenaries when necessary.

Ziris is still controlled by 10 wizards although only 4 of them were in the original group. Those being Zirris himself, an elf, the company strategist, a half-elf, another elf in charge of operations, and finally a teifling in charge of security. The others are heirs to members of the original cadre who all died of old age being human and all.