Amortised cost and indirect shareholding

Yes, there will be variability in the statement of profit or loss fluctuating with the variability of Libor A company is a subsidiary of another if the first mentioned company is a subsidiary of any company that is that other's subsidiary! That surely says it all! Let's try that again with A, B and C A company (C) is a subsidiary of another (A) if the first mentioned company (C) is a subsidiary of any company (B) that is that other's (A's) subsidiary OK?!

That's one hell of a loan agreement! "The borrower will repay when the borrower wants to" !!!!! Show me the lender! It's an unlikely scenario - so unlikely that I'm not inclined to answer it. Probably use 2030 as the repayment date, if you are forced to answer it