Nope. 'Substantial wall failure' aren't the nicest 3 words in the world. I'm guessing that substantial probably means substantial in this instance.
AN1 CuFe sells its Crossroads gold royalty to Northern Star for $4M cash; says better than waiting for mine launch
Week 46 Wrap: Copper hits 2mth low as Trump threatens net zero pace; US rally fades; HotCopper’s picks