Dish of the day Joiners: No Joiners Today. Leavers: Arena Events has left AIM. What’s cooking in the IPO kitchen? URA Holdings, a London based mining exploration and development company, intends to list on the Main Market (Standard). URA, a former AIM-listed company, is refinanced and ready for listing as an African focused mineral exploration company. The Company’s purpose is to seek unique, value-enhancing opportunities in minerals as a project generator including to prove-up early-stage explo ....