X0306 4 2018-05-10 0000708819 MCDERMOTT INTERNATIONAL INC MDR 0001196725 ALEXANDER FORBES I J C/O MCDERMOTT INTERNATIONAL, INC. 757 N. ELDRIDGE PARKWAY HOUSTON TX 77079 1 Common Stock 2018-05-10 4 A 0 4267 A 4267 D Pursuant to the Business Combination Agreement, dated as of December 18, 2017 (the "BCA") to which the Issuer and Chicago Bridge & Iron Company N.V. ("CB&I") are parties, each ordinary share of CB&I beneficially owned by the Reporting Person at the effective time of the transactions contemplated by the BCA was exchanged for .82407 ordinary shares of the Issuer (the Exchange Ratio). /s/ John M. Freeman, by Power of Attorney 2018-05-14