we are saying, as of this year, is that if you want to list your metal on the lme, if that metal can have to pass not just our chemical tests to make sure that your metal is high quality metallurgically, but you have to pass our responsible sourcing tests to show that your supply chain is clean and free from those abuses. well, on that positive note, matthew chamberlain, the big boss of the london metal exchange, thanks very well, let's get more on all of this, because i've also been speaking with the boss of a global mining investment firm, technet, who specializes in those metals needed for green energy and part financed by the us development bank. brian mann, a real pleasure having you on my show. thanks forjoining me, brian. can we can we start with this? just how big of a challenge is to get from where the world is in terms of supply right now and where we need to be to. well, to power the green revolution. and brian, how much of this has been exposed by the well, the current geopolitical situation with russia's invasion of ukraine? it certainly served to further focus attention