Loma Negra Compania Industrial Argentina Sociedad Anonima

As of September 24, 2024, Loma Negra adopted and communicated the new version of the Code of Ethics, named Code of Ethics and Conduct, which complies with NYSE and local regulation’s standards. Likewise, the Code of Ethics and Conduct is posted on our web site at: http://www.lomanegra.com/en/compliance/. Such Code of Ethics and Conduct applies to our employees, directors, managers, shareholders and officers as well as contractors, subcontractors, brokers, suppliers, customers and generally, all parties that provide services to Loma Negra, or on its behalf. Pursuant to Item 16B of Form 20-F, if a waiver or amendment of the code of ethics and conduct applies to our chief executive officer, chief financial officer or other persons performing similar functions and relates to standards promoting any of the values described, we will disclose such waiver or amendment on our website within four business days following the date of amendment or waiver in accordance with the requirements of Instruction 4 to such Item 16B. In addition, we did not grant any waivers to our Code of Ethics and Conduct during the year ended December 31, 2025.