205 ILCS 620/4-4
(a) A foreign corporation, as defined in Section 1-5.08 of this Act, shall not establish in this State a place of business, branch office, or agency for the conduct of business as a fiduciary and because it is not permitted to establish in this State a place of business, branch office or agency, a foreign corporation insofar as it acts in a fiduciary capacity in this State pursuant to the provisions of this Act shall not be deemed to be transacting business in this State. The foreign corporation may apply for, and procure from the Commissioner, a license to establish a representative office pursuant to the Foreign Bank Representative Office Act.
The provisions of this subsection (a) do not apply to foreign corporations establishing or acquiring and maintaining a place of business in this State to conduct business as a fiduciary in accordance with Article IVA of this Act.
(b) Notwithstanding subsection (a) of this Section 4-4, after May 31, 1997, a branch of an out-of-state bank, as defined in Section 2 of the Illinois Banking Act, and a foreign association, as defined in Section 1-10.31 of the Illinois Savings and Loan Act of 1985, may establish an office in this State for the conduct of business as a fiduciary, provided:
(from Ch. 17, par. 1554-4)
(Source: P.A. 91-97, eff. 7-9-99; 92-483, eff. 8-23-01.)