Management Team

Sergio Damian Faifman CEO / Vice-President of the Board

Mr. Faifman was appointed as a member of our board of directors in August 2012. He has also acted as Vice-President of our board of directors and CEO since November 2016. In addition, Mr. Faifman also currently serves as president of the board of directors of Ferrosur Roca S.A., Cofesur S.A. and Recycomb S.A.U., and Vice-President of Loma Negra. In November 2016, Mr. Faifman was appointed President of the National Association of Portland Cement Producers and the Argentine Institute of Portland Cement. Mr. Faifman joined the company in November 1994 and, since then, has held a number of positions, including Logistics and Supply Director from June 2015 until November 2016 and Chief Financial Officer between August 2012 and June 2015. Mr. Faifman has also served as Superintendent of Corporate Comptroller at InterCement Brasil from September 2010 until August 2012 and as Comptroller and Tax Manager at Loma Negra from May 2006 until September 2010. Mr. Faifman received a bachelor’s degree in Public Accountancy from Universidad de Buenos Aires in 1997 and an MBA from Universidad del CEMA in 2002.

Marcos Isabelino Gradin CFO

Mr. Gradin was appointed as our Chief Financial Officer in March 2016. In addition, Mr. Gradin also currently serves on the boards of directors of Ferrosur Roca S.A., Cofesur S.A. and Recycomb S.A.U. He has also served as CFO of Cimpor Spain and Portugal, from January 2013 until August 2015. He joined us in 1998, having occupied several executive positions within our group, including Financial Manager from June 2006 until January 2013 and Chief of Financial Operations from January 1998 until June 2006. Mr. Gradin received a bachelor’s degree in Business Administration in 1995 from Pontificia Universidad Católica Argentina (UCA). He also received a master’s degree in Corporate Finance from Universidad del CEMA in 2000.

Lucas Amchite Director of Operations

Mr. Amchite is our Director of Operations since April 2025 and is responsible for the management and operations of our integrated plants and grinding facilities. In addition, he is responsible for the company's Engineering, Technology and Processes and Maintenance Area. Mr. Amchite joined our company in February 2000, were he held a number of positions at our industrial units and was the plant manager of our San Juan plant from January 2015 until November 2019. On November 2019 he was appointed as Industrial Manager of Yguazu Cementos S.A. (a formerly subsidiary of our Company sold during 2020). Mr. Amchite received a bachelor degree in Mechanical Engineering from Universidad Nacional de Mar del Plata in 1999.

Gerardo Oscar Diez Commercial & Concrete Director

Mr. Diez has acted as our Commercial and Concrete director since January 2011. Mr. Diez is responsible for our marketing strategy and commercial relationships. In addition, Mr. Diez also currently serves on the boards of Ferrosur Roca S.A., Cofesur S.A. and Recycomb S.A.U. Mr. Diez joined the company in May 1992 and, since then, has held a number of positions, including member of our board of directors from September 2012 to July 2017 and Superintendent of Concrete and Aggregates Finance Manager and Supply Chain Manager, having accumulated more than 25 years of expertise. Mr. Diez received a bachelor’s degree in Public Accountancy from Universidad de Buenos Aires in 1991 and an MBA from Universidad Austral in 2000.

Hector Fabian Gerez Ferrosur Roca General Director

Mr. Gerez was appointed as General Director and Vice-President of Ferrosur Roca S.A. in October 2021. He previously performed as manager of the supply chain and logistics at our company from 2005 to 2021, which included the operations at Lomaser’s (our blending, distribution and logistics center which includes a cement mixing plant and distribution and logistics center). Also, he held different positions within the supply chain and logistics area in different jurisdictions in Argentina (e.g. Olavarría, Paraná, Cañuelas). Mr. Gerez joined Loma Negra as a young professional in 1996 and he was part of our company from that point to the present. He received an engineering in electricity degree from Universidad Nacional del Sur de Bahía Blanca and during the last years he attended to several courses of logistic and business management.

Lucrecia Loureiro Human Resources, EHS, and Corporates Affairs Director

Ms. Loureiro was appointed as Human Resources, EHS, and Corporates Affairs Director in 2022. Previously she was our Director of Legal and Corporate Affairs since March 2021. Ms. Loureiro joined us in 2011 and, since then, has held several positions in our legal department. Ms. Loureiro has wide-ranging experience in capital markets, corporate, labor, financial and commercial matters as well as active participation in international investment projects. She is also in charge of Fundación Loma Negra Para el Desarrollo Sustentable. Ms. Loureiro is also responsible for the legal and corporate matters of Ferrosur Roca and she is currently serving as director of Ferrosur Roca. Ms. Loureiro received a law degree from the University of Buenos Aires in 2005. She completed graduate coursework in a master’s program in economic business law at UCA between 2008 and 2009 and she participated on the international exchange program in Tilburg University of Netherlands in 2009. During 2012 and 2013 she participated in a program for the development of organizational skills at Universidad del CEMA. In 2014 she was part of the leadership challenges program of Universidad de San Andrés. In 2020 she participated in a development executive program at Di Tella University.