North Korea: Local press has reported that the Chonnaeri cement plant has “over-fulfilled its cement production plan every day.” In a rare statement it attributed this to the “devoted efforts of its officials and workers” who have contributed the Workers' Party of Korea's ‘grand construction plan.’The report follows a 2023 upgrade to the plant’s production line. The plant does not seem to have been affected by supply issues that have affected other producers in the country.

Puerto Rico: 55,500t of bagged cement were sold in Puerto Rico in February 2025, a 12.3% year-on-year increase compared to February 2024. Data from the Economic Development Bank shows that production of cement within the territory rose by 10.4% to 16,200t.

In the first eight months of the 2025 fiscal year, which runs from 1 July 2024 to 30 June 2025, cement sales have increased by 3.8% compared to the same period in the 2024 fiscal year.

Jamaica: Caribbean Cement Company achieved a net profit of US$37.7m in 2024, a 6.7% year-on-year increase from 2023. It reported this despite disruptions caused by Hurricane Beryl and other adverse weather conditions that affected production. The company's revenues rose by 2.3% to US$180m, driven by strong market demand.

Brazil: Votorantim Cimentos grew its revenue and earnings in 2024 but its net income dropped significantly due to interest rate volatility. It noted ‘positive performance’ in its Europe and Asia region and a stable market in Brazil. It attributed its mounting earnings to its balanced portfolio, revenue in Europe and Asia, operational efficiency, reduced costs and new business.

The group’s net revenue grew by 3% year-on-year to US$4.69bn in 2024 from US$4.53bn in 2023. However, revenue fell slightly in local currencies due to negative exchange effects, particularly in North America. Cement sales volumes rose by 1% to 35.4Mt from 34.9Mt. Adjusted earnings before interest, taxation, depreciation and amortisation (EBITDA) increased by 16% to US$1.14bn from US$0.99bn. Earnings rose in all regions except for Latin America due to a ‘challenging’ market in Uruguay and lower prices in Bolivia. Despite this, its adjusted net income dropped by 17% to US$383m from US$461m.

“We ended the year with record-high operating results, supported by our geographic, product and business diversification, in line with our strategic mandate,” said Osvaldo Ayres, the group’s global CEO. The company invested over US$550m in 2024 towards decarbonisation, competitiveness and new businesses. A further US$880m investment plan in Brazil to 2028 was announced in early 2024. Ongoing projects include upgrades supporting higher thermal substitution rates at the Xambioá plant in Tocantins state and the Salto de Pirapora plant in São Paulo. A new 1Mt/yr cement grinding unit is being built at the Salto de Pirapora site. Construction of this project is scheduled for completion in the second-half of 2025. A new 1Mt/yr cement grinding unit was also announced at the Edealina plant in Goiás. This project is expected to be completed in the first half of 2026.

Votorantim also revealed that it paid around US$190m to the Administrative Council for Economic Defense (CADE) at the end of 2024 in connection with an agreement to end all administrative and judicial litigation. It said “We definitively resolved all pending disputes with CADE. We did not acknowledge, at any time, having committed any unlawful act or engaged in any anticompetitive behaviour.”

US: MTR Carbon Capture says that St Marys Cement’s Charlevoix plant in Michigan will be the first cement plant in the world to deploy its Polaris polymeric membrane-based technology. The pilot project aims to capture 3t/day of CO₂ during a six month testing period. It intends to demonstrate that a 95% CO₂ capture rate is achievable.

US-based Membrane Technology and Research (MTR) specialises in the development and production of membrane-based separation systems for the petrochemical, natural gas and refining industries. The company was set up in 1982 and has its headquarters in Newark, California.

Benin: France-based Chovet is reportedly preparing to support the construction of a 2Mt/yr integrated cement plant. Preparatory studies have been completed and construction is ready to start, according to 24 Heures au Bénin. The engineering company will be responsible for supervising all work, providing project management assistance and monitoring the quality of the installed infrastructure. The project was originally mandated at a meeting of the government’s Council of Ministers in late 2022.

Bangladesh: The Bangladesh Cement Manufacturers Association (BCMA) has requested that the National Board of Revenue (NBR) lower an import tax on clinker to US$1.7/t. The lobbying is taking place ahead of the upcoming budget for the 2025 – 2026 financial year, according to the Financial Express newspaper. The association also expressed concern that a 10% duty was levied on limestone imports, but it expects this to be relaxed in the upcoming budget. The BCMA has urged the NBR to simplify customs regulations and impose a tariff system on value-added tax (VAT) calculations.

Vietnam: The Ministry of Construction has reported a cement surplus to the Prime Minister, blaming a supply-demand imbalance. The country has 92 cement production lines with a capacity of over 122Mt/yr, according to the Việt Nam News newspaper. However, cement and clinker consumption was 95Mt in 2024, with 65Mt used domestically and 30Mt exported.

Planning regulations governing cement plants were relaxed in 2017. Subsequently, local authorities approved 13 new units that added 35Mt/yr in capacity. The Ministry of Construction proposed a national building materials strategy capping total cement production at 125Mt/yr by 2025 and 150Mt/yr by 2030. The ministry has also urged provincial governments to limit new cement projects to prevent excessive supply. It has proposed tightening the planning laws on building new cement plants.

The Vietnam National Cement Association (VNCA) has highlighted weak market demand and production constraints as major challenges to the sector. It has lobbied the government to promote housing, infrastructure and road projects to grow the cement market.

UBE Mitsubishi Cement recently released an update on its commercial scale demonstration using ammonia as a fuel at its Ube plant. It is currently testing the use of ammonia in both the cement kiln and calciner at the site. It has set the aim of reaching a 30% coal substitution rate with ammonia in the cement kiln by the end of March 2025. It has described the project as a world first. Planned future work includes running ammonia combustion tests alongside post-consumer plastics.

The company announced the three-year project in mid-2023. Utilities company Chubu Electric Power has been working on it and UBE Corporation has been supplying the ammonia for the test. The scheme dates back to before Mitsubishi Materials and Ube Industries merged their cement businesses in 2022. Ube Industries previously took part in a government research project looking at the topic, running combustion tests and numerical analysis in small industrial furnaces.

Another ammonia research project in the cement sector was revealed in 2024 by Heidelberg Materials in the UK. The company was awarded just under €0.40m in funding by Innovate UK through its UK Research and Innovation (UKRI) fund, together with engineering consultants Stopford and Cranfield University. The 12-month feasibility study aimed to assess the use of ammonia as a hydrogen carrier and evaluate the most economical method of on-site ammonia cracking to generate hydrogen for use by clinker kilns. It also intended to investigate the various tiers of the UK's existing ammonia supply chain network for the suitable transportation, offloading and storage of ammonia.

The UK project explained that it was looking at ammonia as a hydrogen carrier due to its high volumetric energy density. This, potentially, makes ammonia easier and cheaper to store and transport than hydrogen. It pointed out that storing and transporting hydrogen is difficult and the chemical is expensive. It also noted that the volumetric energy density of ammonia is 45% higher than that of liquid hydrogen. The benefit of switching to a zero-carbon fuel was that it could cut CO₂ emissions by the cement and concrete sector in the UK by 16%.

The attraction of ammonia to the cement industry is similar to that of hydrogen. Both are versatile chemicals that can be produced and used in a variety of ways. The production processes and supply chains of both chemicals are linked. The Haber–Bosch process, for example, uses hydrogen to manufacture ammonia. It can also be cracked to release the hydrogen. When used as fuels neither release CO₂ emissions directly. This comes down to the method of production. Like hydrogen, there is a similar informal colour scheme indicating carbon intensity (Grey, Blue, Green and Turquoise). Despite the advantages listed above, the disadvantages of using ammonia include toxicity and NO_x emissions, as well as the fact that there is little experience of using ammonia as a fuel. The worldwide ammonia market was bigger by volume in 2023 with production of just under 200Mt compared to hydrogen production of just under 100Mt.

Back in Japan, the national government has been promoting the use of ammonia technology for the power generation sector. It added ammonia to the country’s national energy plan in the early 2020s following research on running power plants with a mixture of ammonia and coal. The ambition is to build up levels of ammonia co-firing at power plants, develop the necessary technology and grow supply chains. This, it is hoped, will broaden, diversify and decarbonise the domestic energy mix and pull together a new international market too. Unfortunately, this strategy has had criticism. One study by BloombergNEF in 2022 estimated, for example, that the electricity cost of Japan-based power stations switching to firing ammonia by 2050 would be more expensive than generation from renewables such as solar or wind.

This explains why the ammonia project by UBE Mitsubishi Cement is leading the way. The interest by a European cement company shows that others are thinking the same way too. Yet again, the potential decarbonisation solution for cement is likely to lead towards more complex industrial supply chains. The next steps to watch will be whether a cement plant in Japan actually starts to co-fire ammonia on a regular basis and if any more ammonia projects pop up elsewhere around the world.

Oman: Raysut Cement has appointed Jamal Shamis Saud Al Hooti as its chair. Khalid Masoud Ansari has been appointed as the vice chair and Liyutha Mohamed Sulaiman Al Ismaili has been appointed as the secretary of the board.