A total of 22 workers were left trapped in the Hushan mine, in Shandong province, after an explosion on Jan. 10.

Resignation comes a month after Nick Mather was handed a strong rebuke at the company’s annual meeting, when nearly half of shareholders voted against his reappointment to the board.

The miner said that restrictions rendered the work in Saxony’s Ore Mountains “almost impossible.”

The miner generated 313 million lb. of zinc in 2020, in line with its guidance for 312 million lb. to 327 million lb. for the year.

The US Bureau of Land Management gave final approval to the lithium mine in Nevada.

The company aims to bring secure, cloud-managed IIoT to distributed environments.

A total of 22 workers were trapped in the Hushan mine, in Shandong province, after the blast on Jan. 10.