Gerdau S.A., Metalúrgica Gerdau S.A. and Seiva S.A. Florestas e Indústrias announced that, in view of the retirement of executive officer Harley Lorentz Scardoelli on December 31, 2021, the meetings of the respective Boards of Directors held on this date deliberated and voted to elect Rafael Dorneles Japur as the Executive Vice-President and Investor Relations Officer of Metalúrgica Gerdau S.A. and Gerdau S.A., effective January 1st, 2022, and also to the position of Investor Relations Officer of Seiva S.A. Florestas e Indústrias. Rafael Dorneles Japur holds a degree in business administration and a graduate degree in economics from the Federal University of Rio Grande do Sul (UFRGS) and has complete the Advanced Finance Program at Wharton. He began his career at Gerdau in 2005 as an intern and participated in the Planning and Management trainee program. In 2015, he was promoted to Business Development Manager and a year later, he also took on the leadership of the Debt and Capital Markets management functions in the Finance Department. In 2018, he assumed the position of Planning, IT & Innovation Manager at Gerdau Diaco and Gerdau Metaldom in Colombia. In 2020, he returned to Brazil as General Manager - Corporate Finance, with responsibility for Treasury, Debt and Capital Market, Insurance and Mergers & Acquisitions. In 2020, he also served as secretary of Gerdaus Strategy and Sustainability Committee.