If we look at mining companies, we kind of know that society will carry most of the risk and negative externalities, so regulations must exist to limit how and to what degree companies can operate.

If a mining company extract lead and silver from the ground, we kind of know that they won't be around to safeguard waste for all eternity, nor will they be able to restore the environment when the company eventually goes bankrupt. If society want to allow such commercial operations then it need to also strike a balance so that society don't have to bear too much of the negative externalities.

In Sweden, the goverment here owns the energy company that operate the nuclear power plants and the mining company.