It is easy to denigrate the last and only magnesium plate producer in the USA. Magnesium Elektron charges far more than is the going rate in any other world place that has Mg rolling capacity. You might as well shut down the last place in North America that produces what we need to make tools that are light enough for manual handling by our fellows (ladies too).
I need to order a tonne or so, which is a fairly large order so that our company can provide lightweight tools to produce the highest quality rubber seals (O rings and special seals).
There is no danger coming from the materials produced by Magnesium Elektron nowadays other than the threat to being unemployed.