USG Corporation declared a conditional special cash dividend of $0.50 per share of USG common stock payable to holders of USG common stock as of the record date August 21, 2018 of the special meeting to be held on September 26, 2018. The conditional special dividend is conditioned on the merger agreement being adopted by USG stockholders at the special meeting and, if the merger agreement is adopted, will be paid following certification of the results of the special meeting.