How about M invests $100M in company B, he writes them a cheque, company B purchase waste from company C for $100M, by cheque. Company C loan M the money, by cheque, or give him it.

M isn't out any money. B has a lot of waste to process, batteries maybe. C has $100M extra on their balance sheet. There'd be some wastage: capital gains taxes, ancillary costs.

Does that kind of thing work?