
Displaying items by tag: US
Workers strike at CalPortland Mojave
10 June 2025US: More than 50 employees of the CalPortland cement plant near Mojave went on strike on 8 June 2025. A spokesperson for the workers said that it was the first strike at the location since 1981. A striking employee told local press that pay and retirement benefits are among workers’ concerns. The union's contract with the company expired in March 2025.
US: Researchers at the Massachusetts Institute of Technology (MIT) have developed an AI tool to compare studies of alternative raw materials for cement production. A collaborative team from the MIT Concrete Sustainability Hub and MIT’s recycling research programme, Olivetti Group, published its findings in the Nature journal. The team mined 5.7m academic publications to identify 14,434 alternative raw materials. These belonged to 19 ‘types,’ including bottom ashes, fly ashes, calcined clays and slags, as well as less homogenous types such as biomass ashes, glasses and mine tailings. The study more than doubles the number of fly ashes and slags recorded on a database of this kind. The tool then provides a unified assessment of cementitious reactivity and pozzolanicity, also accounting for variables in particle size and amorphous content.
Decarbonising in the US
04 June 2025A week ago, there were two fully-financed cement plant carbon capture, utilisation and storage (CCUS) projects underway in the US.1 Now, there aren’t.
Projects to decarbonise National Cement Company’s Lebec, California, plant and Heidelberg Materials North America’s Mitchell, Indiana, plant were each set to receive up to US$500m in US Department of Energy (DoE) funding on a one-for-one basis with private investments. The projects were to include eventual 950,000t/yr (Lebec) and 2Mt/yr (Mitchell) carbon capture installations. Additionally, the Lebec plant was to transition to limestone calcined clay cement (LC3) production and the use of alternative fuels (AF), including pistachio shells. Both were beneficiaries of the DoE’s US$6bn Industrial Demonstrations Program (IDP), touted by former US Secretary of Energy Jennifer Granholm as ‘Spurring on the next generation of decarbonisation technologies in key industries [to] keep America the most competitive nation on Earth.’ Disbursement of funding under the programme was frozen by executive order of President Trump in January 2025.2, 3
On 30 May 2025, Trump’s Secretary of Energy announced that the government in which Granholm served had approved spending on industrial decarbonisation without a ‘thorough financial review.’ He cancelled remaining project funding in signature Trumpian style, in list form.4 Among 24 de-funded projects, Lebec and Mitchell accounted for US$1bn (27%) of a total US$3.73bn in allocated funds that have now been withdrawn.
It's hard not to feel sorry for the management of the Lebec and Mitchell plant and the teams that had been working to deliver these projects. Heidelberg Materials has yet to comment, though CEO Dominik von Achten was in North America in late May 2025. National Cement Company parent Vicat, meanwhile, conceded the setback with a strong statement of its commitment to CO2 reduction, to 497kg/t of cementitious product globally.5 There was a diplomatic edge to the statement too, however. Echoing the Secretary of Energy, Vicat said that its target remains ‘solely based on existing proven technologies, including energy efficiency, AF substitution and clinker rate reduction’ – as opposed to ‘any technological breakthroughs’ like carbon capture. There are currently no public details of possible back-up financing arrangements for these projects; for now, the best guess at their status is ‘uncertain.’
Alongside these group’s local subsidiaries, another organisation that has to do business daily with the DoE is the American Cement Association (ACA). President and CEO Mike Ireland has continually acknowledged the complex needs of the government, while stating the association’s case for keeping support in place. With regard to these funding cuts, Ireland’s emphasis fell on the latter side: “Today’s announcement is candidly a missed opportunity for both America’s cement manufacturers and this administration, as CCS projects have long been supported by bipartisan members in Congress and bipartisan administrations.”6 He reasserted the ACA’s understanding that carbon capture aligns with the administration’s strategy to bolster domestic manufacturing and innovation.
The early 2020s heyday of US carbon capture was founded on gradual, consensus-based politics – unlike its demise. Table 1 (below) gives a non-exhaustive account of recent and on-going front-end engineering design (FEED) studies and the funding they received:
|
Capture target |
DoE funding |
Programme |
Amrize Florence7 |
0.73Mt/yr |
US$1.4m (52%) |
Fossil Energy Research and Development |
Amrize Ste. Genevieve |
2.76Mt/yr |
US$4m (80%) |
NETL Point Source Carbon Capture |
Ash Grove Foreman8 |
1.4Mt/yr |
US$7.6m (50%) |
Carbon Capture Demonstrations Projects Program |
Cemex USA Balcones9 |
0.67Mt/yr |
US$3.7m (80%) |
Fossil Energy Research and Development |
Heidelberg Materials North America Mitchell |
2Mt/yr |
US$3.7m (77%) |
Fossil Energy Research and Development |
TOTAL |
7.56Mt/yr |
US$20.2m |
N/A |
Additionally, MTR Carbon Capture, which is executing a carbon capture pilot at St Marys Cement’s Charlevoix plant in Michigan, previously received US$1.5m in Fossil Energy Research and Development funding towards a total US$3.7m for an unspecified cement plant carbon capture study.10
Market researcher Greenlight Insights valued industrial decarbonisation initiatives under the Office of Clean Energy Demonstrations (ODEC – the now defunct DoE office responsible, among other things, for the IDP) at US$65.9bn in cumulative returns in April 2025.11 The government has yet to publish any account of how it might replace this growth, or the 291,000 anticipated new jobs that would have come with it. Given all this (along with the extensive financial and technical submissions that accompanied each project), the issues raised by the DoE are presumably budgetary, or else founded in a perception of CCUS as essentially uneconomical.
Carbon capture is very, very expensive. A fatuous reply is that so is climate change, just with a few more ‘verys.’ Hurricane Ian in September 2022 cost US$120bn, more than enough to fund carbon capture installations at all 91 US cement plants, along the lines of the former Lebac and Mitchell agreements.12 Unlike climate change, however, carbon capture remains unproven. Advocates need to continually justify taxpayer involvement in such a high-risk venture.
At its Redding cement plant in California, Lehigh Hanson successfully delivered a funding-free FEED study, with its partner Fortera raising US$85m in a Series C funding. This presents an alternative vision of innovation as fully-privatised, in which the government might still have the role of shaping demand. This is borne out in the IMPACT Act, a bill which ‘sailed through’ the lower legislature in March 2025.13 If enacted, it will empower state and municipal transport departments to pledge to buy future outputs of nascent reduced-CO2 cements and concretes.
A separate aspect of the funding cancellation that appears decidedly cruel is the targeted removal of grants to start-ups. Two alternative building materials developers – Brimstone and Sublime Systems – were listed for a combined US$276m of now vapourised liquidity. Both are commercially viable without the funding, but the effect of this reversal – including on the next generation of US innovators who hoped to follow in their footsteps – can only be chilling. As non-governmental organisation Industrious Labs said of the anticipated closure of the ODEC in April 2025: “We may see companies based in other geographies start to pull ahead.”
Heidelberg Materials’s Brevik carbon capture plant came online in June 2025, 54 months after the producer secured approval for the project. The term of a presidency is 48 months. This probably means that producers in the US will no longer see CCUS as a viable investment, even under sympathetic administrations.
Even as government funding for CCS flickers from ‘dormant’ to ‘extinct,’ the sun is rising on other US projects. Monarch Cement Company commissioned a 20MW solar power plant at its Humboldt cement plant in Kansas on 27 May 2025. The global momentum is behind decarbonisation, even if economics determines that it will only take the form of smaller-scale mitigation measures at US cement plants into the medium-term future. We can hope that these, at least, might include the AF and LC3 aspects of National Cement Company’s plans at Lebec.
References
1. Clean Air Task Force, ‘Global Carbon Capture Activity and Project Map,’ accessed 3 June 2025, www.catf.us/ccsmapglobal/
2. Democrats Appropriations, ‘Issue 5: Freezing the Industrial Demonstrations Program Undermines U.S. Manufacturing Competitiveness and Strands Private Investment,’ January 2025, www.democrats-appropriations.house.gov/sites/evo-subsites/democrats-appropriations.house.gov/files/evo-media-document/5%20DOE%20Frozen%20Funding%20-%20Industrial%20Demos.pdf
3. Colorado Attorney General, ‘Attorney General Phil Weiser secures court order blocking Trump administration’s illegal federal funding freeze,’ 6 March 2025, www.coag.gov/press-releases/weiser-court-order-trump-federal-funding-freeze-3-6-25/
4. US Department of Energy, ‘Secretary Wright Announces Termination of 24 Projects, Generating Over $3 Billion in Taxpayer Savings,’ 30 May 2025, www.energy.gov/articles/secretary-wright-announces-termination-24-projects-generating-over-3-billion-taxpayer
5. Vicat, ‘Cancellation of funding agreement for the Lebec Net Zero project by the US Department of Energy,’ 3 June 2025, www.vicat.com/news/cancellation-funding-agreement-lebec-net-zero-project-us-department-energy
6. American Cement Association, ‘Statement from the American Cement Association on Department of Energy’s Cancellation of Clean Energy Grants,’ 30 May 2025, www.cement.org/2025/05/30/statement-from-the-american-cement-association-on-department-of-energys-cancellation-of-clean-energy-grants/
7. Gov Tribe, ‘Cooperative Agreement DEFE0031942,’ 30 September 2022, www.govtribe.com/award/federal-grant-award/cooperative-agreement-defe0031942
8. Higher Gov, ‘DECD0000010 Cooperative Agreement,’ 13 May 2024, www.highergov.com/grant/DECD0000010/
9. Gov Tribe, ‘Cooperative Agreement DEFE0032222,’ 7 February 2025, www.govtribe.com/award/federal-grant-award/cooperative-agreement-defe0032222
10. Higher Gov, ‘DEFE0031949 Cooperative Agreement,’ 1 May 2023, www.highergov.com/grant/DEFE0031949/
11. Center for Climate and Energy Solutions, ‘Jobs, Economic Impact of OCED Closure,’ 11 April 2025, www.c2es.org/press-release/oced-closure-could-cost-65-billion-290000-jobs/
12. National Centers for Environmental Information, ‘Events,’ accessed 4 June 2025, www.ncei.noaa.gov/access/billions/events/US/2022?disasters%5B%5D=tropical-cyclone
13. US Congress, ‘H.R.1534 - IMPACT Act,’ 26 March 2025, www.congress.gov/bill/119th-congress/house-bill/1534
US: The Trump administration has cancelled a US$500m grant awarded in December 2024 to National Cement in California for the conversion of its Lebec cement plant into the state’s first net-zero cement facility. The project, valued at US$891m, aimed to switch to limestone calcined clay cement and use agricultural waste as fuel, with CO₂ captured for permanent underground storage, according to the Bakersfield Californian newspaper. It was expected to create 20 - 25 permanent jobs. The US Department of Energy (DOE) said the project was among 24 grants worth US$3.7bn cancelled due to failure “to advance the energy needs of the American people,” and cited economic infeasibility and poor return on taxpayer investment.
US Secretary of Energy Chris Wright said that the previous administration “failed to conduct a thorough financial review before signing away billions of taxpayer dollars.”
Executive director Steven Nadel of the American Council for an Energy-Efficient Economy said “Choosing to cancel these awards is shortsighted, and I think we're going to look back at this moment with regret.”
The project was one of 33 cement, steel and aluminium decarbonisation projects awarded DOE grants in 2023. The project turned up on an April 2025 list of 39 projects the DOE's Office of Clean Energy Demonstrations was considering terminating.
Holcim plans Amrize spin-off for 23 June 2025
02 June 2025Switzerland/US: Holcim will complete the 100% spin-off of its North American business, Amrize, with trading expected to begin on 23 June 2025. The US Securities and Exchange Commission has declared effective the Amrize Form 10 Registration Statement, and Amrize has received authorisation to list shares on the New York Stock Exchange and the SIX Swiss Exchange under ‘AMRZ’.
Holcim shareholders approved the move with 99.75% in favour at the company’s annual general meeting on 14 May 2025. Each Holcim shareholder will receive one Amrize share per Holcim share owned as of close of business on 20 June 2025. The spin-off will be treated as tax neutral for Swiss tax and tax-free for US federal income tax purposes. S&P Global Ratings and Moody’s Ratings rated Amrize at BBB+ and Baa1, respectively, both with stable outlooks.
Monarch Cement completes solar power project
29 May 2025US: Monarch Cement and Evergy Energy Solutions have celebrated the completion of a 39-hectare solar array, with a capacity of 20MW, according to The Chanute Tribune. The facility was inaugurated with a ribbon cutting ceremony attended by representatives from both companies. It will supply up to 33% of Monarch’s Humboldt cement plant’s energy needs. Monarch Cement president Kent Webber said the project took three years to complete.
Evergy also planted native pollinator-friendly grasses and plants to boost underground biomass, improve water infiltration and offer the potential to capture CO₂. The project reduces water demand compared to conventional power generation.
US: Fortera has achieved ISO 9001:2015 certification for its ReCarb Plant in Redding, California, which produces 15,000t/yr of ReAct low-carbon cement. The international certification establishes protocols for quality management systems and ensures delivery of products and services that meet regulatory requirements. Fortera said that the certification process involved months of internal audits, documentation of operating procedures and responding to third party feedback.
US: Eagle Materials recorded net earnings of US$463m of in the 2025 fiscal year (FY2025), which ended on 31 March 2025. This represented a 3% year-on-year fall. The company achieved a record revenue of US$2.3bn, marginally higher than the amount seen in FY2024.
Eagle Materials’ revenues from its Heavy Materials segment, which includes cement, concrete and aggregates, fell by 2% year-on-year to US$1.4bn. Net earnings from this sector were US$320m, 6% lower year-on-year. Cement volumes were also down by 5% to 6.9Mt.
Commenting on the annual results, Michael Haack, President and CEO, said “We are pleased to report another year of strong financial, strategic and operational performance at Eagle. In FY2025, we generated record revenues of US$2.3bn and a gross profit margin of 30%, continued to advance our long-term growth and value-creation strategies and achieved important milestones in employee health and safety.”
Haack added that results in the Heavy Material sector were ‘dented’ by adverse weather in January and February 2025. Higher production costs also dragged on results as the company brought forward an annual maintenance outage at one facility and experienced weather-related interruptions at other facilities.
Buzzi raises sales in first quarter of 2025
16 May 2025Italy: Buzzi recorded sales of €972m in the first quarter of 2025, up by 9% year-on-year, driven by acquisitions and ‘favourable’ exchange rates. Sales remained level year-on-year in Italy, but dipped by 3.3% in the US. During the quarter, Buzzi sold 6.38Mt of cement and 2.18Mm³ of ready-mix concrete, up by 23% and 4% respectively. The producer noted ‘solid’ shipments in Eastern Europe and signs of recovery in Central Europe.
Buzzi confirmed its 2025 guidance for operating results in line with 2024.
US: Heidelberg Materials North America is upgrading its Cementon cement distribution terminal in New York. The producer will build a new packaging line with a 200t/hr Haver & Boecker rotary packing machine and a fully-automated Beumer palletising system. It will also expand its cement storage silos in order to support the growth of its bulk cement sales.