Gypsum industry news

Securing sustainable energy sources has been the priority for some of Spain’s gypsum wallboard producers in recent weeks.

In late November 2023 Pladur revealed that it plans to use green hydrogen at its production plants from the second half of 2024 onwards. It will start at its Valdemoro plant near Madrid before rolling usage out elsewhere afterwards. The subsidiary of Belgium-based Etex is also considering trials with biomethane and biogas. Then a few weeks later in early December 2023 Knauf Ibérica announced that it is planning to build a 7.5MW biomass unit at its Guixers plant in Lleida. Commissioning is currently scheduled for late 2024. This follows the installation of solar panels at the site earlier in 2023. Along similar lines, Saint-Gobain Placo signed an 11-year power purchase agreement (PPA) with electricity company Endesa at the end of 2022 to supply 150GWh/yr of renewable energy. Together with a previous renewable energy deal this was expected to cover up to 65% of the group’s electricity requirements in Spain.

Wallboard plants all over the world have been embarking on sustainable energy drives in recent years but the particular drivers in Spain are worth mentioning. The country’s high electricity prices have frequently been raised by large-scale industrial users in the past, often in terms of competitiveness of exports. However, the situation worsened following the start of the war in Ukraine in early 2022 as the wholesale price of coal and gas jumped. The high price of gas in particular pushed the electricity prices up in Spain and wallboard plants typically use both sources of energy. The government eventually capped the price of gas and coal for power generation. It then offered an aid scheme for large-scale gas users but missed the gypsum sector out, much to the chagrin of the Asociación Técnica y Empresarial del Yeso (ATEDY), which complained about it at the end of 2022. The gypsum industry was later included in July 2023 when a funding scheme was announced. It’s unknown how much this initiative has helped wallboard manufacturers but the shift to renewables by the three main companies mentioned above tells its own story.

Despite the energy supply problems a new entrant to the wallboard market in Spain announced itself in March 2023. Italy-based Fassa Bortolo said it was going to spend Euro90m on building a wallboard plant at Tarancón in Cuenca. No commissioning date or main supplier name has been disclosed, but Italy-based Bedeschi did say in late November 2023 that it was providing raw bulk material handling equipment including an apron feeder, stacker, excavator and conveyor belt line. There has also been no word on how the new plant will power itself.

On the topic of exports, Spain has long been one of the world’s larger shippers of natural gypsum. Data from the Geological and Mining Institute of Spain (IGME) shows that the country exported 9.2Mt of gypsum in 2021 with a value of Euro60m. Whether this changed in 2022 when the energy prices increased is unknown at the time of writing. In 2021 Almería was the epicentre of the country, accounting for 70% of the 13Mt total volume of gypsum extracted that year with a quarry at Sorbas, operated by Saint-Gobain Placo, reportedly being the second largest in the world. Most of the gypsum extracted at Sorbas was then driven by truck to the Port of Garrucha, making it the busiest gypsum port in Europe by volume.

Eurogypsum, the European federation of national associations of producers of gypsum products, launched its industry roadmap to net-zero by 2050 on 9 November 2023 at the Global Gypsum Conference 2023, which took place in Chicago, US. Various actions and technologies were unveiled as part of the plan including some of the approaches being taken in Spain such as using ‘green’ electricity, biomass and green hydrogen. All of these suggestions were split into short, mid and final term feasibility categories. So, for example, using renewable sourced electricity is dependent on it being affordable and available. It was placed in the immediate category. Yet, using biofuels or green hydrogen is flagged as requiring investment, so deemed as short-to-mid term.

Spain presents a case where the cost of energy for industrial users may be aligning with sustainability goals. How this translates onto balance sheets remains to be seen though. These kinds of sustainable energy projects may only be slowing the inevitable as raw material and energy costs mount anyway leading to tighter margins, increased competition and potential consolidation. The gypsum sector in Spain may well be testing out slightly earlier than elsewhere how much a more sustainable world will actually cost.

Georgia-Pacific officially opened its new gypsum wallboard plant at Sweetwater in Texas earlier this month. The US$325m project is situated next to the company’s existing plant at the site, Sweetwater West, on the other side of a road. Canada-based Gyptech said in 2021 that it was supplying the equipment for the new high-speed line at the site.

When Georgia-Pacific first announced the new project in 2020, it mentioned that it would be able to keep its logistics costs low, use raw gypsum reserves and the existing workforce. Despite this, the plant has still created over 100 new jobs. The company also said that it anticipated closing its 60Mm²/yr Quanah plant, also in Texas, depending upon market conditions. This came to pass in March 2023. Altogether, both plants at Sweetwater will have a production capacity of around 93Mm²/yr. This implies that the new plant has a production capacity of around 60Mm²/yr, given that the existing plant’s capacity is 30Mm²/yr. Funnily enough this is the same as the Quanah plant.

The new plant at Sweetwater may be a sign that the US wallboard market is picking up again. Georgia-Pacific has invested some serious money and it is targeting Texas, a leading area for construction nationally. However, it does come with a few caveats. Firstly, the new plant at Sweetwater is replacing existing capacity at Quanah. Secondly, it is using some of the advantages of the existing plant such as its trucks and its proximity to its customers. This suggests that the company may be wary of building a new plant in a greenfield location with all the potential risks that might involve.

US wallboard sales have regularly peaked and troughed over the decades, like many other commodity markets, as demand and production capacity race each other. Sales of wallboard peaked around the year 2000 and then again in the mid 2000s before tailing off following the 2007 recession. They have been recovering ever since and started to get close to the levels seen in the first half of the 2000s in 2022 when the United States Geological Survey (USGS) reported wallboard sales of 2.6Bnm².

Generally, the last tranche of new wallboard plants in the US were built or approved in the late 2000s before the financial downturn. These new sites included CertainTeed’s Roxboro plant in North Carolina and the Moundsville plant in West Virginia, Gold Bond Building Products’ Mount Holly plant in North Carolina and American Gypsum’s Georgetown plant in South Carolina. From this point though various plants were either closed or mothballed. Some of the latter have been restarted as the market slowly recovered. New plant projects in the 2010s tended to be upgrades or replacements. One example of this was USG’s plan to rebuild a production line at its Jacksonville plant in Florida, which was announced in late 2017 before Knauf took over the company in 2018. Another was National Gypsum’s scheme to reopen its Wilmington plant in North Carolina in 2019. At the same time in the 2010s there were a number of mergers and acquisitions including Lafarge’s sale of its gypsum business in North America in 2013, Knauf’s takeover of USG in 2019 and Saint-Gobain’s acquisition of Continental Building Products in 2020.

When Georgia-Pacific started building the new plant at Sweetwater in 2020 this marked the start of a new phase of US wallboard plant projects. American Gypsum announced plans for an upgrade to its Albuquerque gypsum wallboard plant in 2021, Gold Bond Building Products started building its long-delayed Eloy plant in Arizona in 2022 and it said it was spending US$90m on an upgrade to its Mount Holly gypsum wallboard plant in North Carolina in 2023, and CertainTeed revealed it wanted to build a second production line at its Palatka gypsum wallboard plant in Florida also in 2023.

Congratulations are due to Georgia-Pacific for the achievement at Sweetwater. Optimism for the US market in general may also be in order given the slow but steady stream of projects that have been announced and completed since 2020. The next step, when a company builds a new wallboard plant at a greenfield site in the US, looks set to happen when Gold Bond Building Products completes its Eloy plant.

One can tell that gypsum wallboard is a popular product because companies keep trying to devise alternatives to it. A recent one is Breathaboard. The company making it, Adaptavate, announced in August 2023 that it had generated around Euro2.3m in its latest investment round. It is building a pilot production line in Bristol in the UK and attempting to licence its Breathaboard product, amongst other plans. Its take on wallboard is being marketed as a sustainable substitute that is made from crop waste, that sequesters CO₂ and that then can be composted at the end of its life. It is also promoting the product’s breathability and moisture buffering capabilities, hence the name.

Another new contender hoping to steal some of the gypsum wallboard market is Xeriant’s Nexaboard product. This one uses plastic waste as its alternative to gypsum. Florida-based Xeriant said in July 2023 that it had started to buy equipment and raw materials, was running pilot production and was testing its first samples. It too is working on getting its product used in pilot construction projects.

Both of these examples, and others over the years, have taken a pop at wallboard’s sustainability credentials. Adaptavate is rather quieter about what happens to all of that sequestered CO₂ when its product is composted and Xeriant does not mention the environmental impact of making the plastic it uses in the first place. Yet, it is a valid question to ask how sustainable is gypsum wallboard? This column has covered issues with the supply of raw gypsum from either natural, synthetic or recycled sources previously, so we will stick to the general picture here.

The late-lamented consultant Bob Bruce pulled together data from various studies for the Global Gypsum Conference in 2019 to estimate the CO₂ emissions from wallboard production. He estimated that the global average of CO₂ production by wallboard was around 2.4kg/m², equating to 24Mt/yr of CO₂ for the global wallboard industry. For reference, it is estimated by the Center for International Climate and Environmental Research - Oslo (CICERO) that the process emissions from clinker production alone released around 1.6Gt/yr of CO₂ in 2022. When compared by mass (as opposed to area) to other building materials, wallboard has a lower carbon intensity than many products such as glass, cement (made from clinker), plastics, steel and plywood. Timber, concrete and brick are all better than wallboard though. However, as Bruce pointed out, a lot more concrete is manufactured than wallboard. Bruce came up with a handful of suggestions for how wallboard production could reduce its CO₂ emissions such as the reduction of slurry water, local delivery, co-generation, increasing drying efficiency and so on.

The two big sustainability trends from the sector over the last year have been the drive to support higher recycling rates of gypsum and a move towards ‘greener’ sources of energy. This can be seen in the growing use of electrical energy from renewable sources such as the production of net zero CO₂ gypsum wallboard at Saint-Gobain’s Fredrikstad plant in Norway from April 2023. The group’s Montreal plant looks set to follow in 2024 following an upgrade, potentially making it the first net zero wallboard plant in North America. Chiyoda-Ute in Japan has also started using renewably-sourced electricity at its plants in Japan, but it is uncertain what other energy sources these sites are using. China-based BNBM also claimed in its half-year results that it had built four “nearly zero emission” gypsum board production lines in the reporting period.

Wallboard's market position in North America, Europe and elsewhere seems secure. However, it is in dynamic tension as it is both a potential replacement for more carbon intensive building materials and it could also be susceptible to new emerging products that can improve on its own emissions. The manufacturers of Breathaboard and Nexaboard are clearly hoping for the latter. Yet, as is often pointed out, giving more market share to wallboard from other common building materials could reduce CO₂ emissions from construction massively. The diversification of traditional heavy building materials companies such as Holcim into light building materials in recent years suggests that some businesses are seriously preparing for this possibility. No doubt, if global wallboard usage does start to rise significantly, the pressure will grow to make wallboard more sustainable and to devise even more alternative board products.

Grenzebach said earlier this month that it is going to invest around Euro2m on growing its presence in Pune. The current sales and service branch will be merged with a new production site in the city in Maharashtra. The site will be used for the assembly of conveyor equipment and welding work for dryers and lehr ovens for the glass industry. Production at the new unit is expected to start in October 2023 and it will create around 30 new jobs.

The decision by the Germany-based equipment supplier to expand in India follows Saint-Gobain’s expansion plans in India. It said in late 2022 that it was planning to spend US$215m towards capacity expansion plans in 2023 as part of a larger investment in the region, of US$970m between 2022 and 2025. Its stated aim for the new investment is to grow its revenue to US$4.4bn in 2032 from US$1.5bn in 2022. To break this down, half of the group’s turnover in India comes at present from glass-related businesses, 30% from gypsum and construction chemicals and the rest from abrasives, ceramics and life sciences. Some examples of this planned investment include the acquisition by Saint-Gobain of Rockwool India, a stone wool manufacturer, in February 2023 and an agreement to buy UP Twiga Fiberglass, a glass wool producer. Saint-Gobain is the biggest gypsum wallboard producer by capacity in India with four plants, followed by USGKnauf, which runs two plants, and various independent producers.

Growing the wallboard market in India has long seemed like an enticing prospect given the country’s demographics, low production capacity per capita compared to Europe and North America, and sustainability trends. However, despite all of this, it is taking a long time to get there. One commentator on LinkedIn has suggested that this may be down to reticence from the construction sector to adopt the product. In his view wallboard in India has mainly been used for ceilings and for commercial and industrial applications but not for residential projects. Producers, such as Saint-Gobain are likely to be well aware of this. So it is interesting to note that two projects in India picked up awards in Saint-Gobain’s International Gypsum Trophy in 2023.

On the crude gypsum side, data from the Indian Bureau of Mines and the United States Geological Survey (USGS) show that India produced an estimated 4.3Mt of gypsum from its mines from reserves of 37Mt. These reserves are far smaller than other countries with large populations such as China, the US, Brazil or Türkiye. The country also produced an estimated 2.1Mt of flue gas desulfurisation (FGD) gypsum in the 2023 – 2023 financial year. However, the Cement Manufacturers Association (CMA) estimates that its sector used 13 – 17Mt in 2020 – 2021 when cement production was 331Mt and that this is forecast to rise to 20 – 25Mt in 2024 – 2025 when cement production reaches 491Mt. This corresponds to the 4 – 5% of gypsum that it is added to clinker when grinding it to manufacture ordinary Portland cement (OPC) and other cement types.

In acknowledgment of this gap between mining and usage, the Department for Promotion of Industry and Internal Trade (DPIIT) started promoting recycling gypsum from fertiliser production and power plants in May 2023. So far, its main focus has been on improving access to phosphogypsum stockpiles, although the target for FGD production is an ambitious 9.9Mt by 2025 – 2026. Unsurprisingly, gypsum exporters have benefitted from this situation. Oman, reportedly, exported nearly 5Mt of gypsum to India in 2022. Historically, Thailand and Iran have also supplied the Indian market with gypsum.

India remains the great maybe for wallboard adoption outside of North America and Europe. The latest round of investment by Saint-Gobain and Grenzebach may yet deliver on this. Both companies are looking at a range of light materials including glass and insulation not just wallboard. So far though, the main merger and acquisition activity by Saint-Gobain has been targeted on insulation companies. Once or if Saint-Gobain or anyone else starts buying gypsum companies or building new plants then we will have a sense that something is changing. Alongside this, the DPIIT’s plans to recycle more gypsum may help bring further attention to the local gypsum sector.

Eurogypsum added its views on the European Union’s (EU) proposed Critical Raw Materials Act (CRMA) last month. It wants gypsum to be added to the bill’s list of critical and strategic raw materials. It is not surprising that the European federation of national associations of producers of gypsum products might want to do this. However, when compared to rare earth minerals of the sort required to manufacture batteries for electric vehicles (EV), gypsum doesn’t seem all that, well, rare.

What may be rare though is people’s patience with new gypsum mines. The association’s argument is that gypsum is indeed abundant in the EU but that accessing it is increasingly becoming difficult. The EU’s sustainability agenda has made the energy efficiency of buildings as important as reducing CO₂ emissions from the transportation sector. Gypsum and other materials used to make lightweight building materials are a way of renovating existing buildings and improving energy efficiency. Therefore it suggests that the act should either recognise gypsum as strategic or introduce a new ‘essential’ category. This would then make the process of extracting gypsum more easy.

This approach ties back to initiatives such as one by the Federal Commission on Geosciences (BLA-GEO) in Germany, which previously started to compile an inventory of the nation’s gypsum deposits with the intention of putting this in front of policy makers. Nor is the gypsum sector alone in targeting the potentially lucrative retrofit market. In May 2023 Daikin, Danfoss, Knauf Insulation, Rockwool, Saint-Gobain, Signify and Velux signed an agreement to promote building energy efficiency in Central and Eastern Europe (CEE). Radek Bedrna, Knauf Insulation’s managing director for Eastern Europe and Middle East, noted that two thirds of the 43.6m homes in single- and multi-family houses in the CEE region were reportedly built before 1989 and are energy inefficient. The European Commission places transport-related greenhouse gas emissions at about 25% of the region’s total. Renovating buildings fully, by contrast, could save up to 5% of the EU’s emissions. Targeting transport emissions may be a higher priority for the EU but the savings from retrofitting are not trivial either.

Then - on cue in mid-June 2023 - there was an example of the difficulties gypsum product producers can face with building new quarries or enlarging old ones when expansion plans for a gypsum quarry supporting Placoplatre’s wallboard plant in Chambéry in France were scaled back from local opposition. The subsidiary of Saint-Gobain met similar issues in late 2022 when a public enquiry started examining its plans to build a new quarry at Fort Vaujours, Seine-Saint-Denis. This site is intended to serve the Vaujours gypsum wallboard plant as a replacement for its Bernouille quarry after the latter closes in 2026. This one has a happier ending, for the gypsum sector at least, since the project received an environmental permit in late May 2023. One of the key issues that came up in the enquiry was a disagreement over the means of extraction. A local environmental group favoured underground mining but an open-cast approach was preferred by the producer as it would yield much more gypsum. The latter was eventually approved.

What this suggests is that making gypsum an ‘essential’ raw material in Europe requires engagement with the general public as much as legislators. Some people may not like having a wind farm built near where they live but the chances are that there will be less opposition than building a new coal mine. Digging up new gypsum deposits should be presented as more like the former than the latter. Whizzing around in a new EV is generally seen as being more fun than bragging about how great the lamba factor is for one’s house. However, this may change if energy prices keep ticking upwards. Gypsum may not be rare but Eurogypsum and others can make a strong case for it being essential.