The key difference between conventional and Islamic financing is that, while the time value of money is not permissible in a pure 'cash now for more cash later' transaction, it is allowed if the financing is an integral part of a real trade in goods.
So while the organisation is not allowed to lend USD 100,000 in cash now in return for USD 110,000 payable in a year, it is allowed to sell an asset with a market price of USD 100,000 for USD 110,000 payable in a year.
Therefore often described as an asset-based financing system.