Is it permissible to resort to a bank guarantee that entails usurious interest, due to the company's lack of liquidity and the cancellation of the deal if there is no guarantee, and the absence of Islamic banks in the country?

It is not permissible to issue a bank guarantee that is not covered by the client's balance if the bank takes money in exchange for its guarantee, because this ultimately leads to a loan that draws a benefit, which is forbidden by the consensus of scholars. The cancellation of the transaction and the impoundment of the financial guarantee do not affect this ruling, because the company proceeded to enter the transaction knowing its inability to provide a permissible bank guarantee.