Cuba: Corporación Cementos Cubanos’ Siguaney plant is supplying oil well cement products for Empresa de Perforación y Reparación de Pozos de Petróleo y Gas (EMPERCAP) and Australia-based Melbana. It has contracts to supply around 300t to both companies for local projects, according to the Prensa Latina news agency. It is also supplying PP-25 and P-35 types of oil well cement to the government.

UK: A consortium led by Australia-based First Graphene including Breedon Cement, Morgan Sindall Construction and the University of Manchester plans to start a trial producing graphene-enhanced cement in June 2023. The project will aim to produce around 2000t of the cement in the first instance. Its performance as a binder in mortar and concrete systems will be analysed to assess the performance improvement, prior to use in real-world demonstrations by Morgan Sindall Construction. Data from Breedon and First Graphene production sites has already been analysed by the University of Manchester and found graphene enhanced cement to both offset CO₂ and demonstrate potential mechanical benefits, even at graphene loading levels less than 0.06%.The project is supported by a Euro215m grant from the Innovate UK scheme.

Michael Bell, the managing director and chief executive officer of First Graphene, said “Our research and development in collaboration with some of the world’s most innovative materials technology organisations, coupled with buy-in from industry partners to trial our graphene products, sets the foundation for a strong commercialisation pathway.” He added, “Greening of the concrete and cement sector provides our company with a great opportunity to strengthen both our revenue and ultimately profitability as market demand for decarbonisation technologies and materials increases.”

US: Holcim US has joined the Department of Energy's (DOE) 'Better Climate Challenge' to reduce CO₂ emissions and save energy. It is the first cement producer to commit to the DOE program. The subsidiary of Switzerland-based Holcim plans to power the electrical operations at 13 cement plants in the country with 100% renewable energy by 2030 and to reach net zero CO₂ emissions by 2050. As part of the 'Better Climate Challenge' it has committed to reduce CO₂ emissions in the US by at least 25% by 2033.

Examples of current renewable power usage at Holcim US cement plants include the installation of three onsite wind turbines at the Paulding plant in Ohio that generate 11,500MWh while a forthcoming solar unit at the Hagerstown plant in Maryland will generate up to 18,440MWh. All 13 Holcim cement plants will conduct reviews to identify projects that could contribute to meeting goals of the challenge.

With grant support from the DOE, Holcim is also investigating the feasibility of using carbon capture utilisation and storage (CCUS) at its cement plants in Portland, Colorado, and Ste. Genevieve, Missouri. In addition to involvement in the Better Climate Challenge, Holcim US is a continuing partner of the DOE's 'Better Plants Challenge', sharing facility-level energy data and solutions to help guide other industrial companies with implementing energy solutions in their facilities.

Italy: Buzzi Unicem reduced its specific gross scope 1 CO₂ emissions by 4% year-on-year to 664kg/t cementitious product in 2022 from 689kg/t in 2021. As part of its Sustainability Report for 2022 it revealed that specific CO₂ emissions varied from a low of 500kg/t in Luxembourg to a high of 812kg/t in Ukraine. Its specific thermal consumption fell slightly to 4084MJ/t clinker and its thermal substitution rate was 29.9%.

The company’s Lost Time Injury Frequency Rate (LITFR) was 4.9 and two fatalities were reported. It also noted that six employees – five Ukrainian and one Russian – died as a result of the war between Ukraine and Russia that started in February 2022. In addition, six staff were wounded, one taken prisoner and two were reported missing from its Ukrainian workforce.

The building materials producer noted that it had met some of its five-year sustainability targets set in 2017, including a 5% reduction in specific CO2 emissions, the implementation of structural engagement projects at all of its production sites with a high economic, environmental and social impact and the achievement of increasingly safe working conditions.