StarBigBloc Building Material, a wholly-owned subsidiary of BigBloc Construction, one of the largest manufacturers of Aerated Autoclaved Concrete (AAC) Blocks, Bricks and ALC Panels in India has acquired land for setting up a green field facility for AAC Blocks in Indore, Madhya Pradesh. Company has purchased approx. 57,500 sq. mts. land at Khasra No. 382, 387, 389/2, Gram Nimrani, Tehsil Kasrawad, District – Khargone, Madhya Pradesh for the purpose of AAC Blocks business expansion in central India. The total consideration for the land deal is Rs 60 million and Stamp duty.

StarBigBloc Building Material Ltd currently operates one plant at Kheda near Ahmedabad with an installed capacity of 250,000 cubic meters per annum, serving most part of Gujarat, upto Udaipur in Rajasthan, and till Indore in Madhya Pradesh. The capacity utilisation at Starbigbloc Building Material Ltd for the third quarter was 75 per cent. The planned expansion will enable the company to establish a stronger presence in Madhya Pradesh and surrounding regions. Reaffirming its commitment to the Green Initiative, it has also installed a 800 KW solar rooftop power project — a significant step toward sustainability and lowering its carbon footprint.

Narayan Saboo, Chairman, Bigbloc Construction said “The AAC block industry is set to play a pivotal role in India’s construction sector, and our company is ready for a significant leap forward. The proposed expansion in Indore, Madhya Pradesh aligns with our growth strategy, focusing on geographic expansion, R&D investments, product diversification, and strategic branding and marketing initiatives to enhance visibility, increase market share, and strengthen stakeholder trust.”

Bigbloc Construction has recently expanded into construction chemicals with Block Jointing Mortar, Ready Mix Plaster, and Tile Adhesives, tapping into high-demand segments. The company introduced NXTGRIP Tile Adhesives alongside its trusted NXTFIX and NXTPLAST brands, ensuring superior bonding, strength, and performance.

In May 2024, the board of directors approved fund-raising through SME IPO or Preferential issue to support expansion plans of Starbigboc Building Material subject to requisite approvals and market conditions, Starbigboc Building Material aims to expand its production capacity from current 250,000 cubic meters per annum to over 1.2 million cubic meters per annum in the next 4-5 years. Company is targeting revenues of Rs 4.28 billion by FY27-28, with an expected EBITDA of Rs 1.25 billion and net profit of Rs 800 million. In FY23-24, the company reported revenues of Rs 940.18 million, achieving a revenue CAGR of over 21 per cent in the last four years.

Incorporated in 2015, BigBloc Construction is one of the largest and only listed AAC block manufacturer in India, with a 1.3 million cbm annual capacity across plants in Gujarat (Kheda, Umargaon, Kapadvanj) and Maharashtra (Wada). The company, which markets its products under the ‘NXTBLOC’ brand, is one of the few in the AAC industry to generate carbon credits. With over 2,000 completed projects and 1,500+ in the pipeline, The company’s clients include Lodha, Adani Realty, IndiaBulls Real Estate, DB Realty, Prestige, Piramal, Oberoi Realty, Tata Projects, Shirke Group, Shapoorji Pallonji Group, Raheja, PSP Projects, L&T, Sunteck, Dosti Group, Purvankara Ltd, DY Patil, Taj Hotels, Godrej Properties, Torrent Pharma, GAIL among others.

The cement industry is responsible for 8 per cent of global CO2 emissions—a staggering figure that demands urgent action, particularly as 2024 marked the first year the planet surpassed the 1.5°C global warming limit. Recognising this critical juncture, the World Cement Association (WCA) has released a landmark White Paper, “Long-Term Forecast for Cement and Clinker Demand”, which projects a sharp decline in long-term cement and clinker demand. By 2050, annual clinker production is expected to fall below 1 Gt from its current level of 2.4 Gt, with far-reaching implications for global carbon emissions and the viability of carbon capture projects.

WCA CEO Ian Riley underscores the complexity of this challenge:
“Carbon capture remains a vital tool for tackling emissions in hard-to-abate sectors like cement. However, flawed demand assumptions and the fragmented nature of cement production globally could undermine the feasibility of such projects. Industry stakeholders must rethink their strategies and embrace innovative, sustainable practices to achieve meaningful emissions reductions.”

Key Findings from the WCA White Paper
The WCA White Paper provides a comprehensive roadmap for the industry’s decarbonisation journey, highlighting the following critical insights:
1. Declining Cement and Clinker Demand: Global cement demand is expected to drop to approximately 3 billion tonnes annually by 2050, while clinker demand could decline even more steeply, reaching just 1.5 billion tonnes annually.
2. Implications for Carbon Capture and Storage (CCS): With reduced clinker production, the need for CCS is expected to decline, necessitating a shift in investment and policy priorities.
3. Alternative Materials and Clinker-Free Technologies: These innovations hold transformative potential for reshaping demand patterns and cutting emissions.
4. Supply Chain Optimisation: Enhancing logistics and reducing waste are key strategies for adapting to evolving market dynamics.

A Path to Lower Emissions
Clinker production, the largest source of CO2 emissions in cement manufacturing, generates one-third of emissions from fuel combustion and two-thirds from limestone decomposition. According to our white paper, transitioning to lower-carbon fuels could reduce specific fuel emissions per tonne of clinker by nearly 70% by 2050. Overall CO2 emissions from cement production are forecast to decline from 2.4 Gt in 2024 to less than 1 Gt by 2050, even before factoring in carbon capture technologies.

Ian Riley emphasised: “This white paper provides actionable insights to help the cement industry accelerate its decarbonisation journey. By prioritising innovation and collaboration, the industry can achieve substantial emissions reductions and align with global climate goals.”

Carbon Capture, Utilisation, and Storage (CCUS) is crucial for reducing emissions in the cement industry. Kanika Mathur explores how despite the challenges such as high costs and infrastructure limitations, CCUS offers a promising pathway to achieve net-zero emissions and supports the industry’s sustainability goals.

The cement industry is one of the largest contributors to global CO2 emissions, accounting for approximately seven to eight per cent of total anthropogenic carbon dioxide released into the atmosphere. As the world moves towards stringent decarbonisation goals, the cement sector faces mounting pressure to adopt sustainable solutions that minimise its carbon footprint. Among the various strategies being explored, Carbon Capture, Utilisation, and Storage (CCUS) has emerged as one of the most promising approaches to mitigating emissions while maintaining production efficiency. This article delves into the challenges, opportunities, and strategic considerations surrounding CCUS
in the cement industry and its role in achieving net-zero emissions.

Understanding CCUS and Its Relevance to Cement Manufacturing
Carbon Capture, Utilisation, and Storage (CCUS) is an advanced technological process designed to capture carbon dioxide emissions from industrial sources before they are released into the atmosphere. The captured CO2 can then be either utilised in various applications or permanently stored underground to prevent its contribution to climate change.
Rajesh Kumar Nayma, Associate General Manager – Environment and Sustainability, Wonder Cement says, “CCUS is indispensable for achieving Net Zero emissions in the cement industry. Even with 100 per cent electrification of kilns and renewable energy utilisation, CO2 emissions from limestone calcination—a key raw material—remain unavoidable. The cement industry is a major contributor to
GHG emissions, making CCUS critical for sustainability. Integrating CCUS into plant operations ensures significant reductions in carbon emissions, supporting the industry’s Net Zero goals. This transformative technology will also play a vital role in combating climate change and aligning with global sustainability standards.”
The relevance of CCUS in cement manufacturing stems from the inherent emissions produced during the calcination of limestone, a process that accounts for nearly 60 per cent of total CO2 emissions in cement plants. Unlike other industries where CO2 emissions result primarily from fuel combustion, cement production generates a significant portion of its emissions as an unavoidable byproduct. This makes CCUS a particularly attractive solution for the sector, as it offers a pathway to drastically cut emissions without requiring a complete overhaul of existing production processes.
According to a Niti Ayog report from 2022, the adverse climatic effects of a rise in GHG emissions and global temperatures rises are well established and proven, and India too has not been spared from adverse climatic events. As a signatory of the Paris Agreement 2015, India has committed to reducing emissions by 50 per cent by the year 2050 and reaching net zero by 2070. Given the sectoral composition and sources of CO2 emissions in India, CCUS will have an important and integral role to play in ensuring India meets its stated climate goals, through the deep decarbonisation of energy and CO2 emission intensive industries such as thermal power generation, steel, cement, oil & gas refining, and petrochemicals. CCUS can enable the production of clean products while utilising our rich endowments of coal, reducing imports and thus leading to an Indian economy. CCUS also has an important role to play in enabling sunrise sectors such as coal gasification and the nascent hydrogen economy in India.
The report also states that India’s current cement production capacity is about 550 mtpa, implying capacity utilisation of about 50 per cent only. While India accounts for 8 per cent of global cement capacity, India’s per capita cement consumption is only 235 kg, and significantly low compared to the world average of 500 kg per capita, and China’s per capita consumption of around 1700 kg per capita. It is expected that domestic demand, capacity utilisation and per capita cement consumption will increase in the next decade, driven by robust demand from rapid industrialisation and urbanisation, as well as the Central Government’s continued focus on highway expansions, investment in smart cities, Pradhan Mantri Awas Yojana (PMAY), as well as several state-level schemes.

Key Challenges in Integrating CCUS in Cement Plants Spatial Constraints and Infrastructure Limitations
One of the biggest challenges in integrating CCUS into existing cement manufacturing facilities is space availability. Most cement plants were designed decades ago without any consideration for carbon capture systems, making retrofitting a complex and costly endeavour. Many facilities are already operating at full capacity with limited available space, and incorporating additional carbon capture equipment requires significant modifications.
“The biggest challenge we come across repeatedly is that most cement manufacturing facilities were built decades ago without any consideration for carbon capture systems. Consequently, one of the primary hurdles is the spatial constraints at these sites. Cement plants often have limited space, and retrofitting them to integrate carbon capture systems can be very challenging. Beyond spatial issues, there are additional considerations such as access and infrastructure modifications, which further complicate the integration process. Spatial constraints, however, remain at the forefront of the challenges we encounter” says Nathan Ashcroft, Carbon Director, Stantec.
High Capital and Operational Costs CCUS technologies are still in the early stages of large-scale deployment, and the costs associated with implementation remain a significant barrier. Capturing, transporting, and storing CO2 requires substantial capital investment and increases operational expenses. Many cement manufacturers, especially in developing economies, struggle to justify these costs without clear financial incentives or government support.
Regulatory and Policy Hurdles The regulatory landscape for CCUS varies from region to region, and in many cases, clear guidelines and incentives for deployment are lacking. Establishing a robust framework for CO2 storage and transport infrastructure is crucial for widespread CCUS adoption, but many countries are still in the process of developing these policies.

Waste Heat Recovery and Energy Optimisation in CCUS Implementation
CCUS technologies require significant energy inputs, primarily for CO2 capture and compression. One way to offset these energy demands is through the integration of waste heat recovery (WHR) systems. Cement plants operate at high temperatures, and excess heat can be captured and converted into usable energy, thereby reducing the additional power required for CCUS. By effectively utilizing waste heat, cement manufacturers can lower the overall cost of carbon capture and improve the economic feasibility of CCUS projects.
Another critical factor in optimising CCUS efficiency is pre-treatment of flue gases. Before CO2 can be captured, flue gas streams must be purified and cleaned to remove particulates and impurities. This additional processing can lead to better capture efficiency and lower operational costs, ensuring that cement plants can maximise the benefits of CCUS.

Opportunities for Utilising Captured CO2 in the Cement Sector
While storage remains the most common method of handling captured CO2, the utilising aspect presents an exciting opportunity for the cement industry. Some of the most promising applications include:

Carbonation in Concrete Production
CO2 can be injected into fresh concrete during mixing, where it reacts with calcium compounds to form solid carbonates. This process not only locks away CO2 permanently but also enhances the compressive strength of concrete, reducing the need for additional cement.

Enhanced Oil Recovery (EOR) and Industrial Applications
Captured CO2 can be used in enhanced oil recovery (EOR), where it is injected into underground oil reservoirs to improve extraction efficiency. Additionally, certain industrial processes, such as urea production and synthetic fuel manufacturing, can use CO2 as a raw material, creating economic opportunities for cement producers.

Developing Industrial Hubs for CO2 Utilisation
By co-locating cement plants with other industrial facilities that require CO2, manufacturers can create synergies that make CCUS more economically viable. Industrial hubs that facilitate CO2 trading and re-use across multiple sectors can help cement producers monetise their captured carbon, improving the financial feasibility of CCUS projects.

Strategic Considerations for Large-Scale CCUS Adoption Early-Stage Planning and Feasibility Assessments
Cement manufacturers looking to integrate CCUS should begin with comprehensive feasibility studies to assess site-specific constraints, potential CO2 storage locations, and infrastructure requirements. A phased implementation strategy, starting with pilot projects before full-scale deployment, can help mitigate risks and optimise
system performance.
Neelam Pandey Pathak, Founder and CEO, Social Bay Consulting and Rozgar Dhaba says, “Carbon Capture, Utilisation and Storage (CCUS) has emerged as a transformative technology that holds the potential to revolutionise cement manufacturing by addressing its carbon footprint while supporting global sustainability goals. CCUS has the potential to be a game-changer for the cement industry, which accounts for about seven to eight per cent of global CO2 emissions. It addresses one of the sector’s most significant challenges—emissions from clinker production. By capturing CO2 at the source and either storing it or repurposing it into value-added products, CCUS not only reduces
the carbon footprint but also creates new economic opportunities.”

Government Incentives and Policy Support
For CCUS to achieve widespread adoption, governments must play a crucial role in providing financial incentives, tax credits, and regulatory frameworks that support carbon capture initiatives. Policies such as carbon pricing, emission reduction credits, and direct subsidies for CCUS infrastructure can make these projects more economically viable for cement manufacturers.
Neeti Mahajan, Consultant, E&Y India says, “With new regulatory requirements coming in, like SEBI’s Business Responsibility and Sustainability Reporting for the top 1000 listed companies, value chain disclosures for the top 250 listed companies, and global frameworks to reduce emissions from the cement industry – this can send stakeholders into a state of uncertainty and unnecessary panic leading to a semi-market disruption. To avoid this, communication on technologies like carbon capture utilisation and storage (CCUS), and other innovative tech technologies which will pave the way for the cement industry, is essential. Annual reports, sustainability reports, the BRSR disclosure, and other broad forms of communication in the public domain, apart from continuous stakeholder engagement internally to a company, can go a long way in redefining a rather traditional industry.”

The Role of Global Collaborations in Scaling CCUS
International collaborations will be essential in driving CCUS adoption at scale. Countries that have made significant progress in CCUS, such as Canada, Norway, and the U.S., offer valuable insights and technological expertise that can benefit emerging markets. Establishing partnerships between governments, industry players, and research institutions can help accelerate technological advancements and facilitate knowledge transfer.
Raj Bagri, CEO, Kapture, says “The cement industry can leverage CCUS to capture process and fuel emissions and by using byproducts to replace existing carbon intensive products like aggregate filler or Portland Cement.”
Organisations like the Carbon Capture Knowledge Centre in Saskatchewan provide training programs and workshops that can assist cement manufacturers in understanding CCUS implementation. Additionally, global symposiums and industry conferences provide platforms for stakeholders to exchange ideas and explore collaborative opportunities.
According to a Statista report from September 2024, Carbon capture and storage (CCS) is seen by many experts as a vital tool in combating climate change. CCS technologies are considered especially important for hard-to-abate industries that cannot be easily replaced by electrification, such as oil and gas, iron and steel, and cement and refining. However, CCS is still very much in its infancy, capturing just 0.1 per cent of global CO2 emissions per year. The industry now faces enormous challenges to reach the one billion metric tons needing to be captured and stored by 2030 and live up to the hype.
The capture capacity of operational CCS facilities worldwide increased from 28 MtCO2 per year in 2014 to around 50 MtCO2 in 2024. Meanwhile, the capacity of CCS facilities under development or in construction has risen to more than 300 MtCO2 per year. As of 2024, the United States had the largest number of CCS projects in the pipeline, by far, with 231 across various stages of development, 17 of which were operational. The recent expansion of CCS has been driven by developments in global policies and regulations – notably the U.S.’ Inflation Reduction Act (IRA) – that have made the technology more attractive to investors. This has seen global investment in CCS more than quadruple since 2020, to roughly $ 11 billion in 2023.

The Future of CCUS in the Cement Industry
As technology advances and costs continue to decline, CCUS is expected to play a crucial role in the cement industry’s decarbonisation efforts. Innovations such as cryogenic carbon capture and direct air capture (DAC) are emerging as promising alternatives to traditional amine-based systems. These advancements could further enhance the feasibility and efficiency of CCUS in cement manufacturing.
In conclusion, while challenges remain, the integration of CCUS in the cement industry is no longer a question of “if” but “when.” With the right mix of technological innovation, strategic planning, and policy support, CCUS can help the cement sector achieve net zero emissions while maintaining its role as a vital component of global infrastructure development.