Displaying items by tag: Golden Bay Cement

New Zealand: Golden Bay Cement has resolved the breakdown of its Marine Vessel Aotearoa Chief (MVAC) earlier than anticipated, returning the vessel to service after necessary checks with marine authorities. The company made use of alternative transport options to distribute cement and sourced alternative cement supplies due to the disruption.

The earlier resolution has resulted in a reduced impact on earnings, estimated to be on the lower end of US$10m – 30m.

New Zealand: Fletcher Building says that a mechanical issue with a cement carrier ship is causing operational business for its Golden Bay Cement subsidiary. The Marine Vessel Aotearoa Chief (MVAC) ship is currently docked at Northport while inspections and repairs are made by the owner. The New Zealand Herald newspaper has reported that the ship is owned by China Navigation Company, an operating arm of the Hong Kong-based Swire. The ship normally transports cement around the North Island from Golden Bay’s cement plant near Whangārei. The cement producer added that “The timeframe required to make the necessary repairs and source replacement parts, is not known at this time.” Fletcher Building’s preliminary assessment is that it expects the impact on its 2025 financial year earnings to be up to US$18m.

Golden Bay has enacted its contingency plans to cope with the outage and is talking to its customers. It is using alternative transport options to distribute cement. including the use of an existing coastal barge and the greater use of road and rail options. The company is also investigating longer-term solutions, which include potentially sourcing the use of alternative cement supplies from domestic and offshore suppliers along with securing the use of a replacement ship if required.

New Zealand: Golden Bay, New Zealand's sole cement producer and a division of Fletcher Building, is advancing its sustainability goals at its Portland plant near Whangārei. The plant has been incorporating old tyres and treated timber in its production process since 2021, with the Ministry for Environment helping fund US$10m of the US$15.5m to upgrade the plant for the project. The plant uses tyres to replace 55-60% of the coal required, and plans to eliminate coal use by 2030. The facility has increased its use of recycled tyres from 15,000t to 30,000t/yr and is aiming for 40,000t/yr. The government’s Tyrewise programme supports tyre recycling, with the plant also investing in an on-site shredder. Upcoming projects include substituting coal with non-recyclable materials like old carpets and plastics, targeting a 30% reduction in emissions. Construction has already started on the project and it is expected to be completed by the end of 2024, according to the New Zealand Herald.

Manufacturing manager Kelly Stevens said, "We’re diverting 100,000t/yr of waste that would’ve gone to landfill.”

New Zealand: Fletcher Building says that its subsidiary Golden Bay cement is waiting to embark on a US$119 – 178m course of capital expenditure (CAPEX) investment. However, the group said that it will first require ‘clarity from the government’ on any upcoming changes to industrial CO2 emissions allocations or border adjustments.

CEO Ross Taylor said “Until we get certainty there, we really can’t pull the cord.” He added “There’s a good pipeline of existing stuff which will really start maturing in two or three years, but there’s another really sizeable pipeline beyond that.”

Fletcher Building invested a total of US$182m across its businesses during the 2023 financial year, which ended in June 2023. The Bay of Plenty Times newspaper has reported that the investments are part of the group’s growth strategy for the four-year period up to the end of the 2027 financial year. Planned areas for investments include adding value to the group’s wood products by developing its alternative fuel (AF) capacity. The growth strategy has a budget of US$474m.

New Zealand: Fletcher Building recorded sales of US$5.07bn during the 2023 financial year, down slightly year-on-year from US$5.08bn in the 2022 financial year. Its earnings before interest and taxation (EBIT) fell by 29% to US$296m from US$419m. The drop in earnings was mainly attributed to additional costs allocated to the New Zealand International Convention Centre and Hobson Street Hotel project. Adjusted for significant items, the group’s EBIT rose by 6% to US$477m from US$452m.

Throughout the year, Fletcher Building’s cement subsidiary Golden Bay Cement co-processed 100,000t of waste as alternative fuel (AF). The producer awarded a bottom ash supply contract to Huntly Power Station. It also launched EcoZero carbon neutral cement, which is its EcoSure reduced-CO₂ cement with the remaining emissions offset.

Chief executive officer Ross Taylor said “Looking forward to the 2024 financial year, we expect some further tightening in our overall volumes and so our focus remains on strong customer performance, cost control and pricing disciplines across our businesses. We have shown we are well equipped to continue performing solidly through the cycle.”

New 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."

New Zealand: Cement producer and construction firm Fletcher Building has reported a 20% year-on-year drop in domestic housing demand during the first quarter of 2023. The Australian newspaper has reported that the company attributed the decline to ‘soaring’ interest rates in the country. It now expects to sell 800 residential units in 2023, 20% below its previous expectation of 1000 units. Fletcher Building said that building materials costs rose by 5 – 10% between 2020 and 2022, due to ‘higher input and commodity costs’ in production.

CEO Ross Taylor said that Fletcher Building faces labour shortages in its civil construction business, but maintained a strong order pipeline. Taylor said “It won’t drive an uptick in volumes but it will underpin the volumes in the next three to four years.”

In Australia and New Zealand, four producers operate a total of six integrated cement plants, with another 13 grinding plants situated in Australia. This relatively small regional cement industry has been on a decades-long trajectory towards ever-greater sustainability – hastened by some notable developments in recent weeks.

Oceania is among the regions most exposed to the impacts of climate change. In Australia, which ranked 16th on the GermanWatch Global Climate Risk Index 2021, destructive changes are already playing out in diverse ways.¹ Boral reported 'significant disruption' to its operations in New South Wales and southeast Queensland due to wet weather earlier in 2022. This time, the operational impact was US$17.1m; in future, such events are expected to come more often and at a higher cost.

Both the Australian cement industry and the sole New Zealand cement producer, Golden Bay Cement, have strategies aimed at restricting climate change to below the 2° scenario. Golden Bay Cement, which reduced its total CO₂ emissions by 12% over the four-year period between its 2018 and 2022 financial years, aims to achieve a 30% reduction by 2030 from the same baseline. The Australian Cement Industry Federation (CIF)'s 2050 net zero cement and concrete production roadmap consists of the following pathways: alternative cements – 7%; green hydrogen and alternative fuels substitution – 6%; carbon capture – 33%; renewable energy, transport and construction innovations – 35% and alternative concretes – 13%, with the remaining 6% accounted for by the recarbonation of set concrete.

Australia produces 5.2Mt/yr of clinker, with specific CO₂ emissions of 791kg/t of clinker, 4% below the global average of 824kg/t.² Calcination generates 55% of cement’s CO₂ emissions in the country, and fuel combustion 26%. Of the remainder, electricity (comprising 21% renewables) accounted for 12%, and distribution 7%. Australian cement production has a clinker factor of 84%, which the industry aims to reduce to 70% by 2030 and 60% by 2050. In New Zealand, Golden Bay Cement's main cement, EverSure general-purpose cement, generates CO₂ at 732kg/t of product.³ It has a clinker factor of 91%, and also contains 4% gypsum and 5% added limestone.

Alternative raw materials

Currently, Australian cement grinding mills process 3.3Mt/yr of fly ash and ground granulated blast furnace slag (GGBFS). In Southern Australia, Hallett Group plans to commission its upcoming US$13.4m Port Augusta slag cement grinding plant in 2023. The plant will use local GGBFS from refineries in nearby Port Pirie and Whyalla, and fly ash from the site of the former Port Augusta power plant, as well as being 100% renewably powered. Upon commissioning, the facility will eliminate regional CO₂ emissions of 300,000t/yr, subsequently rising to 1Mt/yr following planned expansions. Elsewhere, an Australian importer holds an exclusive licencing agreement for UK-based Innovative Ash Solutions' novel air pollution control residue (APCR)-based supplementary cementitious material, an alternative to pulverised fly ash (PFA), while Australian Graphene producer First Graphene is involved in a UK project to develop reduced-CO₂ graphene-enhanced cement.

Golden Bay Cement is investigating the introduction of New Zealand's abundant volcanic ash in its cement production.

Fuels and more

Alternative fuel (AF) substitution in Australian cement production surpassed 18% in 2020, and is set to rise to 30% by 2030 and 50% by 2050, or 60% including 10% green hydrogen. In its recent report on Australian cement industry decarbonisation, the German Cement Works Association (VDZ) noted the difficulty that Australia's cement plants face in competing against landfill sites for waste streams. It described current policy as inadequate to incentivise AF use.

Cement producer Adbri is among eight members of an all-Australian consortium currently building a green hydrogen plant at AGL Energy’s Torrens Island gas-fired power plant in South Australia.

Across the Tasman Sea, Golden Bay Cement expects to attain a 60% AF substitution rate through on-going developments in its use of waste tyres and construction wood waste at its Portland cement plant in Northland. The producer will launch its new EcoSure reduced-CO₂ (699kg/t) general-purpose cement in November 2022. In developing EcoSure cement, it co-processed 80,000t of waste, including 3m waste tyres. The company says that this has helped in its efforts to manage its costs amid high coal prices.

Carbon capture

As the largest single contributor in Australia's cement decarbonisation pathway, carbon capture is now beginning to realise its potential. Boral and carbon capture specialist Calix are due to complete a feasibility study for a commercial-scale carbon capture pilot at the Berrima, New South Wales, cement plant in June 2023.

At Cement Australia's Gladstone, Queensland, cement plant, carbon capture is set to combine with green hydrocarbon production in a US$150m circular carbon methanol production facility supplied by Mitsubishi Gas Chemical Company. From its commissioning in mid-2028, the installation will use the Gladstone plant's captured CO₂ emissions and locally sourced green hydrogen to produce 100,000t/yr of methanol.

More Australian cement plant carbon capture installations may be in the offing. Heidelberg Materials, joint parent company of Cement Australia, obtained an indefinite global licence to Calix's LEILAC technology on 28 October 2022. The Germany-based group said that the method offers effective capture with minimal operational impact.

Cement Australia said “The Gladstone region is the ideal location for growing a diverse green hydrogen sector, with abundant renewable energy sources, existing infrastructure, including port facilities, and a highly skilled workforce." It added "The green hydrogen economy is a priority for the Queensland government under the Queensland Hydrogen Industry Strategy.”

Logistics

Australian and New Zealand cement facilities' remoteness makes logistics an important area of CO₂ emissions reduction. In Australia, cement production uses a 60:40 mix of Australian and imported clinker, while imported cement accounts for 5 – 10% of local cement sales of 11.7Mt/yr.

Fremantle Ports recently broke ground on construction of its US$35.1m Kwinana, Western Australia, clinker terminal. It will supply clinker to grinding plants in the state from its commissioning in 2024. Besides increasing the speed and safety of cement production, the state government said that the facility presents 'very significant environmental benefits.'

Conclusion

Antipodean cement production is undergoing a sustainability transformation, characterised by international collaboration and alliances across industries. The current structure of industrial and energy policy makes it an uphill journey, but for Australia and New Zealand's innovating cement industries, clear goals are in sight and ever nearer within reach.

References

1. Eckstein, Künzel and Schäfer, 'Global Climate Risk Index 2021,' 25 January 2021, https://www.germanwatch.org/en/19777

2. VDZ, 'Decarbonisation Pathways for the Australian Cement and Concrete Sector,' November 2021, https://cement.org.au/wp-content/uploads/2021/11/Full_Report_Decarbonisation_Pathways_web_single_page.pdf

3. Golden Bay Cement, 'Environmental Product Declaration,' 12 May 2019, https://www.goldenbay.co.nz/assets/Uploads/d310c4f72a/GoldenBayCement_EPD_2019_HighRes.pdf

New Zealand: Fletcher Building subsidiary Golden Bay Cement has co-processed 80,000t of waste in production of its EcoSure reduced-CO₂ general-purpose cement at its Golden Bay, Whangarei, cement plant. The plant has achieved a coal substitution rate of 50%. It has processed various waste streams, including 3 million used tyres. EcoSure cement generates CO₂ emissions of 699kg/t of product, 20% less than its imported alternatives, according to Golden Bay Cement. Fletcher building CEO Nick Traber said that this figure is 'simply our starting point.' The company's next target is to achieve a 30% CO₂ reduction by 2030.

Traber said "We needed to think outside the box, or rather the cement bag to be more precise. The challenge was around what enhancements we could make to our manufacturing processes at our Golden Bay cement works in order to improve the plant's sustainability. We quickly realised that consuming used tyres and wood waste as alternative fuels was a win-win. When we started with the idea in 2015, we were aiming to replace 15% of coal with end-of-life tyres. Fast forward to 2022, and our rate of coal substitution is now at 50%, which has obviously delivered further reductions in carbon emissions, as well as helping to offset increased coal costs."

New Zealand: Fletcher Building Materials recorded consolidated sales of US$5.37bn during its 2022 financial year, up by 4.7% year-on-year from US$5.13bn in the previous year. Its net earnings also rose by 42%, to US$273m from US$193m.

The group's concrete division, which includes Golden Bay Cement, contributed US$556m-worth (9%) of group sales. The figure represents an 8% increase from 2021 financial year levels. The business recorded 'strong performances' across all key product segments, underpinned by 'robust' demand and pricing. It made capital expenditure investments of US$51.1m, including in a waste tyre recycling system upgrade at the Golden Bay cement plant. The latter increased the plant's alternative fuel (AF) substitution to 50% from 35%. The company also continued to focus on developing low-CO₂ concrete binders.

Fletcher Building Materials chief executive officer Ross Taylor said "The 2022 financial year has not been without its challenges. Global and national supply chain disruptions have continued into the third year of the Covid-19 pandemic." He added "The New Zealand Commerce Commission recently published its interim market study report into residential building supplies. The final report and recommendations will be published in December 2022 and in the meantime we will continue to work collaboratively with both the commission and the government."