Displaying items by tag: Grinding

India: Gujarat Sidhee Cement has shut down the kiln line of its Sidheegram, Gujarat, cement plant for 17 – 20 days. India InfoLine News Service has reported that the company will carry out routine maintenance on the plant during the shutdown. It says that grinding and dispatch of cement will continue as usual.

Global Cement Weekly celebrates its 500th edition this week. This corresponds to nearly a decade’s worth of news and comment upon the cement industry, since the first edition went out in early June 2011. Time is brief, so the quick version of all of this is as follows: China; production growth; production overcapacity; grinding; corporate mergers; regionalisation; CO₂; digitisation; and coronavirus.

Those looking for the longer version should read Peter Edwards’ review of the 2010s in the December 2019 issue of Global Cement Magazine. Although be warned, few were expecting a global pandemic to rock markets and possibly hasten future trends when that article was written. Those looking for the even longer version should read the last 10 years of the magazine and the website… and then let us know what we missed.

Looking back at the first few editions of Global Cement Weekly brings to mind the LP Hartley quote, “the past is a foreign country; they do things differently there.” It’s all very familiar until one comes across the little things that makes one realise how much has actually changed.

For example, countries were imposing import tariffs on cement, companies were buying each other, national cement associations were lobbying hard for their members and cement plants were investing in alternative fuels equipment. All that stuff has been happening continually over the last decade and right into this week, with Russian media announcing who has won the auction to buy Eurocement and LafargeHolcim closing its deal to buy Firestone Building Products. Yet, Lafarge and Holcim were still separate companies and Italcementi was independent in 2011. On the sustainability side, Norcem and its parent company HeidelbergCement Group, with the European Cement Research Academy (ECRA), had just started a partnership agreement with Aker Clean Carbon (ACC) to study post-combustion CO₂ capture technology at Norcem’s plant in Brevik, Norway. Jump forward nine years and Norcem signed a deal with Aker Solutions in mid-2020 to order a full scale CO₂ capture, liquification and intermediate storage plant at Brevik.

The big numbers from the United States Geological Survey (USGS) show that global cement production grew by 24% to 4.1Bnt in 2020 from 3.3Bnt in 2010. However, the big growth had stopped by around 2013 and production has hovered between 4.0Bnt/yr and 4.2Bnt/yr ever since. Alongside this, Getting the Number Right (GNR) data indicates that net CO₂ emissions for cementitous products fell by 4% to 610kg/t in 2018 from 636kg/t in 2010. The former may show a levelling off of production as the Chinese market stabilised in the 2010s but the latter shows the progress that has been made in reducing cement-related CO₂ emissions and the scale of the challenge that remains ahead.

Graph 1: Embodied energy versus embodied CO₂ of building materials. Source: Hammond & Jones, University of Bath, UK.

Cement industry readers should not lose heart about the future of the industry though, while environmental pressure continues to mount. Graph 1 above shows the embodied CO₂ and energy of common building materials. Cement has been rightly identified as a major emitter of CO₂ but any society that desires to build strong structures cheaply and at scale requires concrete to do so whilst the data above remains unchallenged. The ratios may change, such as the perennial energy-cost influenced tug-of-war between asphalt and concrete roads, but concrete remains the only game in town. For now. At which point cement production becomes all about reducing the CO₂ emissions or capturing them, and determining who exactly pays for this. This then brings us to the present with the European Union Emissions Trading Scheme carbon price of over Euro40/t and other schemes popping up all around the planet. One echo from one of the early editions of Global Cement Weekly was the furore over Australia’s attempt at a carbon tax in the early 2010s. It was repealed in 2014.

One prediction about how the 2020s might be summarised for the cement industry is this: how to get away with pumping out all that CO₂? Let’s see what the next decade will bring.

Financial results for 2020 from the major Chinese cement companies are now out, making it time for a recap. Firstly, information from the China Cement Association (CCA) is worth looking at. The country had a cement production capacity of 1.83Bnt/yr in 2020. For an idea of the current pace of industry growth, 26 new integrated production lines were built in 2020 with a clinker production capacity of just under 40Mt/yr.

This is as one might expect from the world’s biggest cement market. However, the CCA also revealed that the country has over 3400 domestic cement companies, of which two thirds are independent cement grinding companies. Most of these were reportedly created during the late 2000s as dry kilns started to predominate. The CCA is concerned with the quality of the cement some of these companies produce and the lack of order in this part of the market such as regional imbalances. This suggests that the government’s attempts to consolidate the cement industry as a whole had led to the independent companies heading down the supply chain. It also raises the possibility that the government-led consolidation drive may move to grinding next. One news story to remember here is that in February 2021 the CCA called for its industry to respect competition laws following a government investigation. Later in the month it emerged that eight cement companies in Shandong Province had been fined US$35m for price fixing in a sophisticated cartel whereby the perpetrators went as far arranging a formal price management committee to regulate the market.

The CCA described 2020 as a year of sudden decline, rapid recovery and stability. Coronavirus hit cement output in the first quarter of 2020 leading to unprecedented monthly year-on-year declines before it bounced right back in a classic ‘V’ shaped recovery pattern. Despite the pandemic and bad weather later in the year, annual output rose by 2% year-on-year to 2.37Bnt in 2020 from 2.32Bnt in 2019. This has carried on into 2021 with a 61% increase in January and February 2021 to 241Mt from 150Mt in the same period in 2020. That’s not surprising given that China was suffering from the pandemic in these months in 2020 but the growth also suggests that the industry may have gone past stability and is growing beyond simply compensating for lost ground.

Graph 1: Year-on-year change in cement output in China, January 2010 - February 2021. Source: National Bureau of Statistics of China. Note that accumulated data is issued for January and February each year so these months show a mean figure.

Chart 2: Annual cement production growth by Province in 2020. Source: China Cement Association.

Chart 2 above shows cement production in 2020 from a provincial perspective. Note the sharp decline, more than 10% year-on-year, in Hubei Province (shown in dark green). Its capital Wuhan is where the first documented outbreak of coronavirus took place followed by a severe lockdown. Zooming further out, China’s clinker imports grew by 47% year-on-year to 33.4Mt in 2020. This is the third consecutive year of import growth, according to the CCA. The leading sources were Vietnam (59%), Indonesia (10%), Thailand (10%) and Japan (8%). China has become the main export destination for South East Asian cement producers and Chinese imports are expected to continue growing in 2021.

Graph 2: Revenue of large Chinese cement producers in 2020 and 2019. Source: Company reports.

Moving to the financial figures from the larger Chinese cement producers, CNBM and Anhui Conch remain the world’s two largest cement producing companies by revenue, beating multinational peers such as CRH, LafargeHolcim and HeidelbergCement. Anhui Conch appeared to be one of the winners in 2020 and Huaxin Cement appeared to be one of the losers. This is misleading from a cement perspective because Anhui Conch’s increased revenue actually arose from its businesses selling materials other than clinker and cement products. Its cement sales and cement trading revenue remained stable. On the other hand, Huaxin Cement was based, as it describes, in the epicentre of the epidemic and it then had to contend with flooding along the Yangtze River later in the year. Under these conditions, it is unsurprising that its revenue fell.

CNBM’s cement sales revenue fell by 3% year-on-year to US$19.5bn in 2020 with sales from its new materials and engineering compensating. Anhui Conch noted falling product prices in 2020 to varying degrees in most of the different regions of China except for the south. CNBM broadly agreed with this assessment in its financial results. Anhui Conch also reported that its export sales volumes and revenue fell by 51% and 45% year-on-year respectively due to the effects of coronavirus in overseas markets. The last point is interesting given that China increasingly appears in lists of major cement and clinker exporters to different countries. This seems to be more through the sheer size of the domestic sector rather than any concerted efforts at targeting exports.

One major story on CNBM over the last 15 months has been its drive to further consolidate its subsidiaries. In early March 2021 it said it was intending to increase its stake in Tianshan Cement to 88% from 46% and other related transactions. This followed the announcement of restructuring plans in mid-2020 whereby subsidiary Tianshan Cement would take control of China United Cement, North Cement, Sinoma Cement, South Cement, Southwest Cement and CNBM Investment. The move was expected to significantly increase operational efficiency of its constituent cement companies as they would be able to start acting in a more coordinated manner and address ‘fundamental’ issues with production overcapacity nationally.

In summary, the Chinese cement market appears to have more than compensated for the shocks it faced in 2020 with growth in January and February 2021 surpassing the depression in early 2020. Market consolidation is continuing, notably with CNBM’s efforts to better control the world’s largest cement producing company. Alongside this the CCA may be starting to suggest that rationalisation efforts previously focused on integrated plants should perhaps be now looking at the more independent grinding sector. The government continues to tighten regulations on new production capacity and is in the process of introducing new rules increasing the ratio of old lines that have to be shut down before new ones can be built. Finally, China introduced its interim national emissions trading scheme in February 2021, which has large implications for the cement sector in the future, even if the current price lags well behind Europe at present.

US: Coherent Market Insights (CMI) has forecast in a recent market report that the global cement grinding aids market will grow by 55% to US$5.02bn in 2027 from US$3.23bn in 2019. Factors driving market growth include increased cement industry concerns about energy consumption reduction and product fineness. A major driver is the Asia Pacific market, which accounted for 34% of value in 2019. In North America, US residential construction is forecast to continue its five-year increase. CMI predicted that projects in Saudi Arabia will also drive Middle Eastern market growth. It added that the Covid-19 outbreak has caused a drastic short-term decrease in demand.

Greece: Titan Cement has signed a frame agreement with Belgium-based Magotteaux whereby the latter will continue to be the main partner for grinding media for Titan cement plants worldwide until the end of 2021. Magotteaux says that the deal follows the ‘very successful’ implementation of the first phase of a strategic partnership.

The supplier said, “Magotteaux is also proud to supply many more technical solutions to Titan, including ball mill internal cast parts such as liners and diaphragms.” It added, “The aim of this agreement is to improve Titan’s overall cost of production, by increasing the productivity, reducing maintenance cost and downtime, by using the latest technologies for the abrasive and impact applications.”

Spain: LafargeHolcim subsidiary Holcim España has informed the works council and employees of its Jerez de la Frontera cement plant of possible planned changes to the plant’s production structure. The company intends to convert the cement plant into a grinding-only facility. The reasons for the decision were regional overcapacity, falling export volumes and prices and reduced allocations of EU CO₂ emissions credits. It says that under the plan the new grinding plant would continue to serve the market in the region. The communication constitutes the beginning of a collective dismissal process.

General director Isidoro Miranda said that the company wants “to work with the social partners to reach an agreement that allows the continuity of our activity in the town of Jerez.”

India: France-based Fives says that Ramco Cements has ordered a second FCB TSV 5500 BF type classifier for raw material mixing at a plant in Tamil Nadu. The order follows the commissioning of a similar classifier from Fives at the same site. The upgrade is part of an overhaul of the unit’s grinding equipment. No price for the order or commissioning date has been disclosed.

Germany: ThyssenKrupp has announced the launch of the HPGR Pro, a high-pressure grinding roll for raw materials processing that it says “offers up to 20% more throughput, 15% lower energy consumption and 30% longer-lasting rollers” than previous models. HPGR global product manager Frank Schroers said, “We used our experience and what we learned from conversations with customers to introduce improvements that are unique in this market and make grinding much easier.” Laser monitoring keeps users constantly informed about the roller surface and helps predict the best possible time for roller replacement. “Our customers need no longer stop the machine as a precautionary measure, saving them valuable time. What’s more, as our specialists collect and process machine data, our customers can continually improve their HPGR’s operation and optimise throughput, energy consumption or machine availability in line with their specific targets,” added Schroers.

Sri Lanka: Siam City Cement subsidiary Insee Cement says it is ramping up production at its 0.4Mt/yr Galle grinding plant. The unit in Southern Province opened in 2018. The Daily FT newspaper has reported that the grinding plant, along with Insee’s Puttalam integrated plant, will have the production capacity to serve 100% of domestic demand. The producer added that production and supply of its products had returned to normal following disruption caused by coronavirus-related lockdown measures.

Insee Cement sales, marketing and innovation executive vice president Jan Kunigk said, “Our contribution to uplifting the nation’s economy is of immense value in rebuilding Sri Lanka during post-pandemic recovery. Insee Cement’s ability to efficiently deliver our full capacity of high-quality cement needed by individual house builders and concrete business partners has always been ensured.”

India: JK Cement has successfully commissioned a 1.0Mt/yr grey cement grinding mill at its integrated Mangrol cement plant in Chittorgarh, Rajasthan and 1.5Mt/yr of new cement grinding capacity at its Aligarh integrated plant in Uttar Pradesh. Both of the units have also commenced commercial dispatches.