Loma Negra Compañía Industrial Argentina Sociedad Anónima Q3 FY2023 earnings call

• Industry volume trend: Cement volume lower than last year but second best quarter in history. - Financial results: Top line ARS 74 billion, EBITDA ARS 17 billion with margin expansion to 23.2%. - Bond issuance: Used Class III domestic bond to refinance cross-border debt, reducing financial cost and keeping leverage ratio below 1x. - Energy metrics: Expect energy cost reduction in 2024, foreseeing use of natural gas for all energy needs. - Ferrosur concession: Originally to end in March 2023, renewed for 18 months, in talks with government for new contract details.

Cement: Top line reached ARS 74 billion, decreasing 8.3% due to volume contraction. EBITDA margin expanded. Concrete: Revenues decreased 4.2% in the quarter, volumes down 9.4%, offset by good pricing. Aggregates: Segment showed an expansion of 17.5%, with sales volumes almost flat. Railroad: Revenues decreased 4.5% in the quarter, transported volumes down 4.2%, affected by lower transported volumes of Aggregates and fracsand.

• Expect energy cash costs to decrease in 2024 compared to 2023. - Foresee EBITDA margins similar to current levels in 2024. - L´Amalí II running above 6,000-6,200 tons per day, aiming to reach 3 million tons per year.

• Election period volatility and economic challenges posing decision-making challenges. - Uncertainty around Ferrosur concession renewal under new administration.

Q: Talk about how energy mix evolves into 2024 and energy cash cost for the year A: This year closed contracts below previous year, expecting energy cost decrease in 2024, foreseeing use of natural gas for all energy needs Q: Ferrosur concession renewal timeline and expectations A: Ferrosur originally to end in March 2023, renewed for 18 months, in talks with government for new contract details, process slowed by election, expected to continue next year Q: Expectations for cement demand in 2024 and election impact A: Working on projections for 2024, no volume guidance, elections not seen to greatly differ volumes, possible early year changes impacting first Q Q: Pricing strategy in high inflation to sustain profitability and market share A: Price strategy linked to general inflation, FX, and internal costs, competitive dynamic affects market share slightly, national market share similar to previous Q: Margin expansion from natural gas and next year margins A: Impact on margins from cost efficiency and price strategy, foreseeing EBITDA margins similar to current levels in 2024 Q: Operational capacity of L´Amalí II A: L´Amalí II has a kiln of 5,800 tons of clinker, running above 6,000-6,200 tons per day, aiming for 3 million tons per year