Billionaire brothers David and Simon Reuben are to open their accounts to scrutiny, showing they are worth £2.1bn.
The brothers made a fortune dealing in aluminium, but sold out in 2000 and have invested £1bn in UK property.
Much of the rest of their wealth is in cash and they are understood to be looking at big corporate deals.
References: Sunday Times Business 23/03/03 Page 1,9
