We return to Brazil this week where Cimento Itambé has inaugurated a new kiln at its plant in Balsa Nova, Parana. The US$92m investment has added 0.6Mt/yr of cement production capacity to the unit, bringing its total to 3Mt/yr. Notably, the new kiln is intended to support the use of alternative fuels (AF) such as biomass and industrial waste. Local press reports that the new kiln can operate with a 50% AF thermal substitution rate (TSR) and in tests it has reached as high as 67%.
Local market leader Votorantim Cimentos has also embarked on an upgrade programme linked to increasing co-processing rates. In May 2025 it said that it had received and begun installing a new cement mill, supplied from China, at its Salto de Pirapora plant near São Paulo. Earlier in August 2025 it revealed that it was spending US$60m on upgrades at its Nobres and Cuiabá plants in Mato Grosso. A new cement grinding mill is to be installed at the Nobres plant. This should increase the site’s cement production capacity to 1.2Mt/yr from 0.6Mt/yr. At Cuiabá the company is installing a tyre shredding unit via its Verdura subsidiary to support increased rates of co-processing of AF. Work on these projects is set to start in 2025 with completion scheduled by the end of 2026.
These schemes are part of the group’s larger US$920m upgrade investment plans across the country. Announced in early 2024, this is intended to increase competitiveness and co-processing capacity and reduce CO2 emissions. It will also add 3Mt/yr to the company’s production capacity. An investment of US$150m from the International Finance Corporation (IFC) in 2023 to Votorantim to support the uptake of AF is likely to have helped the decision to upgrade. The company currently has a target of a 50% TSR by 2030.
Of the other major producers, CSN is also aiming for a 50% TSR by 2030. It said in its 2024 sustainability report that all of its kilns were capable of processing AF. It also highlighted upgrade work at its Alhandra, Paraíba, plant in 2024 to handle, store and transport fuels, including biomass. InterCement reported some relatively high TSRs at individual plants in Brazil in 2023. For example, its Ijaci plant in Minas Gerais reportedly had a rate of 42%.
National Cement Industry Union (SNIC) data shows that the co-processing rate of AF reached 32% in 2023. The union says that this puts the sector ahead of its next target of 30% in the mid-2020s. The next one is to reach 35% by 2030. For reference, back in 2019 the country’s Cement Technology Roadmap reported that around 60% of cement kilns in the country were licensed by environmental agencies to co-process waste.
Graph 1: Sales of cement in Brazil, 2017 - 2025. Source: SNIC.
Looking at the domestic industry in general, SNIC reported growth in 2024 and the first seven months of 2025. Sales for the first seven months of the year grew by 4% year-on-year to 38.2Mt. This has been attributed to the real estate sector, boosted by the Minha Casa Minha Vida housing programme, and an expanding job market. Yet jitters remain, with fears of an economic slowdown in the second half of 2025 and uncertainty on how new US tariffs might affect the cement industry indirectly. Despite only exporting around 65,000t of cement in 2024 though, the association is wary of any indirect effects of tariffs.
It’s no surprise that cement plants in Brazil are prioritising AF usage. The market is buoyant and co-processing offers one of the cheapest routes to decarbonising cement production in the short-to-medium term. Increasing the use of AF can also potentially hedge against the cost of imported conventional fuels, such as coke, that are priced in US dollars. This is one example of SNIC’s concern over indirect effects on the cement industry from US tariffs via currency volatility. Expect AF rates to carry on rising.
The 18th Global CemFuels Conference & Exhibition on alternative fuels for cement and lime will take place on 17 - 18 September 2025 in Milan, Italy
