Displaying items by tag: Sustainability
Update on Japan, May 2023
17 May 2023The two largest cement producers in Japan released their results for their 2023 financial years this week. Much like manufacturers elsewhere in the world they reported mounting sales revenues, but they also noted losses. Input prices such as coal rose in 2022 and these were passed on to consumers in the form of higher prices. However, this was insufficient to stop them making a loss.
In the case of Taiheiyo Cement, its domestic sales volumes of cement remained stable at 13.4Mt in the year to 31 March 2023. It made a loss at home in Japan but still reported a profit in its overseas businesses, despite export volumes falling by 41% year-on-year to 2.44Mt. The group also noted delays at construction sites due to a lack of workers. Recent domestic developments for Taiheiyo include an agreement in October 2022 to buy the cement business of chemicals company Denka. Outside of Japan, in China, the group suspended the production and sale of cement from its Jiangnan-Onoda Cement subsidiary in February 2023 citing a 'tougher competitive environment,' although it justified this decision as part of its strategy to refocus on Southeast Asia. Then, in late April 2023, the company was forced to stop its proposed acquisition of the Tehachapi cement plant in the US due to an inability to obtain regulatory approval.
Sumitomo Osaka reported a similar situation, with cement sales volumes also down year-on-year. Again, cement price increases were unable to catch coal prices made worse by negative currency exchange effects. Having got the bad news out of the way, it then it took the opportunity to outline its medium term strategy to 2035. It said that becoming carbon neutral was the key to this. In its 2022 financial year cement accounted for around 70% of total sales. However, it is now aiming to reduce this to 65% by 2025 and 50% by 2035. If this sounds familiar this is because it is similar to what Holcim is doing with its growing light building materials division and its diversification away from the heavy building materials trio of cement, concrete and aggregates. Sumitomo Osaka plans to invest over US$3.5bn towards this goal by developing its presence in the semiconductors sector, building its business in Australia and starting new ventures in decarbonisation.
Of the other cement producers, Tokuyama Corporation said in late April 2023 that it was considering suspending operation of one of the three kilns at its 4.54Mt/yr Nanyo cement plant as part of measures to strengthen profitability. It reported a growing loss for the current financial year that it blamed on raw material and fuel costs. Mitsubishi Materials and Ube Industries formed their merged cement businesses in April 2022 known as Mitsubishi UBE Cement Corporation. Ube said, as part of its latest financial results, that, despite a gradual decrease in the domestic market, cement sales had remained stable but that the business was “heavily affected” by rising energy prices such as coal. It added that demand for cement and concrete remain strong in its overseas market in North America.
Graph 1: Sales and exports of cement in Japan from 2013 – 2022. Source: Japan Cement Association.
The Japanese cement market peaked in the 1990s. Domestic sales of cement in Japan have declined over the last decade, as can be seen in Graph 1 above, but at a slower rate. Exports rose to a peak of just under 12Mt in 2017 but have slipped a little since then. Data from the Japan Cement Association placed production at 53.2Mt in 2022 compared to 61.7Mt in 2013. This trend explains the move by the cement producers towards decarbonisation, offshoring, diversification and consolidation. The bump in fuel prices over the past year may have accelerated this process, as examples such as Taiheiyo Cement’s takeover of Denka and Sumitomo Osaka’s new business strategy suggest. The race continues to keep cement production profitable in a changing business environment.
France: Cemex France and Ecocem have signed a deal to collaborate on the development of reduced-CO2 concrete development at 10 Cemex France ready-mix concrete batching plants. The partnership will explore methods that include the use of supplementary cementitious materials in place of clinker. Cemex hopes that the collaboration will help to realise its goal of a 55% CO2 emissions reduction across its European operations by 2030.
Cemex Western Europe vice president materials and Cemex France president Michel Andre said “Cemex continues to reinforce its commitment to advancing the sustainability agenda with the announcement of this extended partnership with Ecocem. We know that if we are to achieve our global ambition of operating as a net-zero business by 2050 we must prioritise exploring innovation and new technologies with like-minded companies who share our dedication to leading the industry’s transition to a lower carbon and circular economy.”
Heidelberg Materials to invest Euro65m in Bussac-Forêt cement plant calcined clay upgrade
15 May 2023France: Germany-based Heidelberg Materials announced a planned Euro65m upgrade to its Bussac-Forêt cement plant in Charente-Maritime Department on 14 May 2023. The project will involve the installation of systems for the production of calcined clay cement. The producer says that this will enable the 0.8Mt/yr plant to reduce its CO2 emissions by 20%.
Chief sustainability officer Nicola Kimm said “In Bussac-Forêt, we are investing in a technology with great potential. It will allow us to significantly expand the range of low-carbon products. Using calcined clay as a clinker substitute is an important measure to reduce the carbon footprint of cement and concrete. In principle, a CO₂ reduction of up to 40% is possible when substituting cement clinker with calcined clay.”
Heidelberg Materials is already involved in the on-going pilot trial of a 400,000t/yr clay calcination plant in Ghana.
France: Hoffmann Green Cement Technologies has commissioned its H2 plant, a 1000t/day clinker-free cement plant, adjacent to its existing H1 clinker-free cement plant in Bournezeau, Pays de la Loire. L'Usine Nouvelle News has reported that the new plant took 24 months to build and cost Euro22m. The main part of the plant consists of a 70m tower, where activated clay, ground granulated blast furnace slag (GGBFS) and gypsum are mixed to produce the cement. It is installed with solar panels capable of supplying 50% of its energy consumption. The producer says that its clinker-free cement has over 90% lower CO2 emissions than cement produced with ordinary Portland cement (OPC). It aims to sell 24,000t of the product throughout 2023.
Ambuja Cements to expand clinker capacity by 8Mt/yr across Bhatapara and Maratha cement plants
12 May 2023India: Ambuja Cements has placed orders with equipment suppliers for an 8Mt/yr clinker capacity expansion across two of its cement plants. The plants in question are the 2.9Mt/yr Bhatapara cement plant in Chhattisgarh and the 4.5Mt/yr Maratha cement plant in Maharashtra. Ambuja Cements will also build 42MW-worth of waste heat recovery (WHR) power capacity. The new cement capacity will be able to operate on renewable energy and use 50% alternative fuel (AF). As such, upon completion of the project, the plants will together produce 14Mt/yr of Ambuja Cements' reduced-CO2 Blended Green Cement. The producer will fund the work through internal accruals, and expects to complete it in May 2025.
CEO Ajay Kapur said "These brownfield expansion projects are part of our strategy to double our production capacity over the next five years from the current capacity of 67.5Mt/yr. Our ongoing investments in capacity expansion and sustainability will enable us to achieve our long-term objectives, as we remain committed to delivering sustainable growth and value to our stakeholders."
Canada: Lafarge Canada has renewed its partnership with fuel logistics company 4Refuel to launch renewable diesel use in its operations in Manitoba. The producer says that trucks will run on renewable diesel produced from waste oils and fats. This will eliminate 39% of the producer's Scope 3 CO2 emissions in the province.
Lafarge Canada's vice president Manitoba and Saskatchewan Tina Larson said "Switching to renewable diesel is a significant step forward in our sustainability journey. We recognise that climate change is one of the most significant challenges facing our planet, and we are committed to doing our part to reduce our impact on the environment. We believe that renewable diesel is an excellent solution to help us achieve our sustainability goals while maintaining the high level of performance that our customers expect.”
Lafarge Canada previously implemented renewable diesel in its operations in Greater Vancouver, British Columbia, in November 2022.
Golden Bay Cement secures bottom ash supply
09 May 2023New Zealand: Golden Bay Cement has signed a deal with Genesis Energy for a supply of bottom ash from Huntly power plant for use in cement production at its Portland cement plant in Northland. Genesis Energy generates 20,000t/yr of bottom ash at the Huntly plant, situated in Waikato, 260km south of the Portland cement plant. The plant currently uses 15,000t/yr of fly ash from the Huntly power plant in its operations. The producer was previously investigating the use of volcanic ash in cement production in 2022. It currently uses waste tyres and wood waste as alternative fuels (AF) to produce its EcoSure low-carbon general-purpose cement.
Golden Bay Cement's general manager Gian Raffainer said "We are driven to decarbonise and achieve 30% less carbon by 2030. Contributing to waste reduction at a large scale for the benefit of all New Zealanders is incredibly exciting. It is a win-win for the environment and for Kiwis who want to use more environmentally friendly products."
Argentina: Cementos Avellaneda has signed a memorandum of understanding (MoU) with energy provider YPF Luz for the construction of a new wind farm. Local press has reported that the planned plant will have a capacity of 63MW and be situated in Olavarría, Buenos Aires Province. There, it will supply 100% of the energy used in cement production at Cementos Avellaneda's Olavarría cement plant. The cement producer will transmit any surplus energy from the wind farm to its San Luis plant at La Calera, with the longer-term aim of becoming Argentina's first 100% renewably-powered cement company.
The partners will carry out technical and economic feasibility studies in mid-2023, and publish plans and budget before the end of the year.
Holcim invests in Coomtech
05 May 2023UK: Switzerland-based Holcim has invested in Coomtech, a developer of low-emission kinetic drying technology for raw materials. The group says that Coomtech's technology emits up to 75% less CO2 than traditional drying methods and enables increased use of recycled materials in cement and concrete. Holcim subsidiary Aggregate Industries previously collaborated with Coomtech on fly ash drying at a UK power plant.
Edelio Bermejo, head of global research and development said "At Holcim, we are continuously working to implement greener operations for a net-zero future, and to increase the use of recycled materials in our products to drive circular construction. Coomtech's low-emission drying technology helps us meet both these goals. I look forward to working with them as a key partner in our journey to decarbonise buildings."
Canada: The Cement Association of Canada (CAC), with its members and partners in the concrete sector, has released Concrete Zero, an action plan to help the local cement and concrete sector reach net-zero CO2 emissions by 2050. The five priority areas it is focusing on include: eliminating the use of coal and petroleum coke as fuel sources for clinker production; reducing the volume of clinker used to produce cement; increasing the use of supplementary cementitious materials; working towards building carbon capture, utilisation and storage capacity; and advocating for performance-based codes, standards and specifications, procurement policies and increased material efficiency in construction. Targets include reaching a 100% fuel mix from non-fossil-based sources by 2050. The latest plant follows the goal of achieving a 40% emissions reduction by 2030 as part of its Roadmap to Net-Zero Carbon Concrete by 2050.
Adam Auer, the president and chief executive officer of CAC, said “Our net-zero action plan is ambitious and cannot be achieved by industry action alone. Working with government, industry, and partners in the design, architecture, and construction industry will be essential for success. Canada’s cement and concrete industry are committed to doing our part to help Canada build a better, cleaner future. Working together, we can deliver Concrete Zero.”