(1) mutual exchange of financial information as to depositors, borrowers, and other customers;
(2) joint use of facilities;
(3) joint operation of clearing houses and other facilities for payment of checks, drafts, or other instruments drawn on or issued by various classes of depository institutions;
(4) joint participation in lending programs to promote the public welfare;
(5) joint risk management services; and
(6) joint ownership, operation, or furnishing of electronic funds transfer services.