11.   Many mines are poorly run, lacking adequate fire and ventilation equipment, and safety regulations are spottily enforced.

12.   The company also runs diamond mines in South Africa and has other properties under development.

13.   The victims in both disasters worked for Trust Arktikugol, the Russian company that runs the mines.

14.   Dyno has said that it is not responsible for running the mine but only for supplying explosives.