Loma Negra is Argentina's largest cement producer, with an estimated 43.6% share of the Argentine cement market by volume. The company makes and sells cement, masonry cement, lime, concrete, and aggregates, all used in residential, commercial, and public construction. Cement is the dominant product, accounting for roughly 89% of shipments. Loma Negra sells primarily to wholesale distributors, concrete producers, and industrial customers, serving approximately 1,000 clients across Argentina, organized into six distribution regions. The Province of Buenos Aires is the largest market, representing 43% of total volume. Loma Negra is heavily vertically integrated: the company owns its limestone quarries (with roughly 149 years of reserves at current production rates), operates the Ferrosur Roca freight railway to reduce transport costs, and runs Recycomb, a subsidiary that converts industrial waste into alternative fuels for its kilns. The company operates seven cement plants with total installed capacity of 12.0 million tons annually, and the L'Amalí plant is one of the largest cement plants in South America. Energy is the largest cost component at 19% of cost of sales, and Loma Negra manages this by diversifying its fuel mix across kilns. Roughly 60% of cement is sold in bags, which typically commands higher margins than bulk cement, as bagged cement serves smaller distributors and retail channels where brand recognition matters more.