805 ILCS 30/6
At any such annual or special meeting, stockholders may vote in person or by proxy, each stockholder being entitled to one vote for each share of stock held by him, and at such meeting there shall be submitted the proposed agreement or agreements. Votes representing two-thirds of all the outstanding capital stock of each company shall be necessary for the ratification of such agreement or agreements, if there be represented and is voted at such meeting, in person, or by proxy, not less than two-thirds of such outstanding capital stock. If less than two-thirds of such capital stock be represented and voted at such meeting, and if there be presented at such meeting the acknowledgments in writing of the receipt of notice of such meeting, from the owners of stock not represented and voted, to such an amount as would make not less than two-thirds of such outstanding capital stock, when added to the stock represented and voted, then such agreement or agreements may be ratified by the vote of two-thirds of the capital stock represented and voted at such meeting.
805 ILCS 30/6