610 ILCS 10/2
The special or annual meeting of the stockholders at which the question of the approval of such change or changes is to be submitted shall be called by delivering personally, or depositing in the post-office stamped and addressed to each stockholder at such address as appears upon the records of the company, at least thirty days before the time fixed for such meeting, a notice, stating the time, place and purposes of such meeting. A general notice of the time, place and purposes of such meeting shall also be published once a week for three weeks, prior to the time fixed for such meeting, in a newspaper published in or nearest the county in which the principal business office of said company is located; Provided, however, if any such change shall involve a consolidation or an increase of the capital stock of said company, at least sixty days' public notice thereof shall be given by publishing as above provided such a general notice of the time, place and object of the special or annual meeting of the stockholders of said company at which such change is to be considered, once at least sixty days prior to the time fixed for such meeting.
610 ILCS 10/2