Optional; Fully operational, Irrevocable, Confirmed, Revolving, Non-Transferable and Non-assignable Letter of Credit (LC) 100% at Sight OR Irrevocable, Confirmed, Revolving, Non-Transferable and Non-assignable Blocked Funds via SWIFT MT799, OR Irrevocable, Confirmed, Revolving, Non-Transferable and Non-assignable Standby Letter of Credit (SBLC) via MT760.