US: Novel concretes developer Greencraft has made a patent application for a new method of CO₂ mineralisation using a microporous material containing mineral oxides, like slag. Global Warming Focus News has reported that the method also works for natural hyaloclastite, bottom ash, fly ash, volcanic ash and lava.
Greencraft said that its method marks an ‘improvement’ in current techniques for sequestering CO₂ in alternative materials.
UK: Switzerland-based Neustark has partnered with Holcim subsidiary Aggregate Industries to launch the UK’s first mineralisation plant in Greenwich, London. The small-scale mobile plant will sequester CO2 in recycled concrete produced using fines recovered from construction and demolition materials (CDM). The plant is situated at an existing Aggregates Industries CDM recycling site. A large-scale plant with a sequestration capacity of 1000t/yr of CO2 is due to follow in early 2025.
Neustark CEO Valentin Gutknecht said "Neustark and Holcim have been working together almost since the founding of Neustark five years ago. 1Mt of CO₂ durably removed from the atmosphere in 2030 – that’s our ambition. We’re already well underway towards the megatonne goal. Our strategic partnership with Holcim represents a significant part of this roadmap. It will be a true catalyst to further scale up the permanent carbon removal impact that we generate in the next few years.”
Aggregate Industries CEO Lee Sleight said that the partnership would turn London into ‘one of the world’s largest urban mines.’ He said “This isn’t just a great carbon removal innovation but a great circular economy innovation, where we are taking what was once a waste stream and reusing it, saving us from digging up virgin materials in the first place."
Neustark has so far sequestered 2500t of CO2 in circular concrete for use in further construction.
South Africa: Raubex recorded sales of US$617m in the first half of the 2025 financial year, following ‘strong performances’ across all divisions. This corresponds to a 30% year-on-year rise. Operating profit also grew, by 35%, to US$47.7m.
Raubex’s gypsum, concrete and aggregates subsidiary OMV performed ‘well,’ according to the parent company. It attributed the performance to a growth in the local construction industry.
Japan: Asahi Concrete Works raised its sales by 1% year-on-year from US$21.4m in the first half of 2023 to US$21.6m in the first half of 2024. This helped its net profit to grow by 22%, from US$1.50m to US$1.83m.
