The requirement of subsection (a) of this section relating to an assurance regarding direct benefits to businesses organized for profit shall not apply with respect to a Regional Corporation, as defined in section 3(g) of the Alaska Native Claims Settlement Act (
43 U.S.C.
1602
(g)), that is established in accordance with such Act [
43 U.S.C.
1601 et seq.] as a for-profit corporation but that is engaging in nonprofit activities.