Braskem S.A. approved the change the composition of the Company's Board of Directors due to: the appointment of Mr. João Carlos Trigo de Loureiro, current full member of the Board of Directors, to one of the vacant positions of alternate member of the Company's Board of Directors. In view of the resignation submitted by Mr. Marcus Vinicius de Oliveira Magalhães, full member of the Company’s Board of Directors, pursuant to the resignation letter received and filed at the Company’s principal place of business on September 5, 2018; the appointment of Mr. João Carlos Trigo de Loureiro, current full member of the Company’s Board of Directors, to one of the vacant positions of alternate member of the Company's Board of Directors; and the existence of another vacant position of alternate member of the Company’s Board of Directors. The company approved the election of Ricardo Baldin as full member, in replacement of resigning full member Mr. Marcus Vinicius de Oliveira Magalhães; election of Mr. FÁBIO VENTURELLI as full member, in replacement of resigning full member Mr. João Carlos Trigo de Loureiro; and election of Mr. LARRY CARRIS CARDOSO as alternate member of Board Member Edson Chil Nobre, to occupy the other vacant position of alternate member of the Company's Board of Directors; b) record that, as of October 17, 2018, Mr. PAULO CEZAR FERNANDES DA SILVA elected as alternate member of the Company's Board of Directors at the Annual General Meeting held on April 30, 2018, will assume the position of alternate member of Board Member Ricardo Baldin, in the position previously occupied by Board Member João Carlos Trigo de Loureiro.