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Avoid, Minimise, Restore and Offset

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Pankaj Agarwal, National Mines Head, Shree Cement, describes the changes in mining through innovation, efficiency and ecological responsibility as well as community partnerships.

By integrating advanced technology, alternative raw materials and community partnerships, new benchmarks are being set for sustainable resource development. In this exclusive interview, Pankaj Agarwal, National Mines Head, Shree Cement, shares how the company is transforming mining practices with cutting-edge technology, sustainable resource management and community-driven initiatives. From fuel-efficient equipment to progressive land rehabilitation, Shree Cement is embedding sustainability at the core of its mining operations.

How is your organisation redefining mining practices to align with sustainability goals?
At Shree Cement, sustainability is integrated into every stage of mining. We manage operations in-house for better efficiency and control. Advanced mapping, reserve estimation, and daily planning minimise wastage, while high-capacity precision equipment reduces fuel use. At Nawalgarh, locating the crusher inside the quarry saves 3.84 lakh litres of diesel; high-pressure drills across sites save 7.91 lakh litres annually. Switching dumpers to tippers is expected to conserve 21 million litres over the mine’s life. Operator Independent Truck Dispatch System (OITDS) reduces idle time, saving 7.27 lakh litres annually. Together, these measures embed sustainability into operations.

What role does technology play in minimising the environmental footprint of mining?
Technology is central to our efforts to reduce environmental impact while maintaining high operational efficiency. We are leveraging Industry 4.0 technologies such as artificial intelligence, data analytics and automation to optimise every stage of mining. For instance, the use of DATAMINE software allows us to perform highly accurate reserve estimations and daily mine planning, ensuring maximum recovery with minimal ecological disturbance.
On the ground, we have implemented the OITDS across our Ras and Raipur mines. By minimising truck idle time, this system alone contributes to fuel savings of over seven lakh litres annually. Similarly, cross-belt analysers enable real-time monitoring of limestone quality, reducing wastage and ensuring consistent feedstock for cement production.
Beyond logistics, Condition-Based Monitoring (CBM) ensures equipment efficiency through fuel consumption analysis, CO2 emission checks and engine calibration. This proactive maintenance minimises energy losses while extending machinery life. Automated high-pressure drills further enhance precision and reduce fuel usage, while solar-powered lighting systems in our mines cut reliance on conventional energy.
Together, these technological solutions significantly reduce emissions, optimise resources, and set new benchmarks for sustainable mining.

How do you balance raw material security with ecological preservation?
At Shree Cement, it is carefully balanced with ecological preservation through both efficient mining practices and large-scale adoption of alternative materials. In FY 2024-25, 26.36 per cent of our total raw materials amounting to 12.54 million tonnes were sourced from alternatives such as fly ash, granulated blast furnace slag (GBFS), and chemical gypsum. These industrial by-products not only reduce dependence on natural limestone but also address waste disposal challenges for other sectors.
A key innovation in this area is our patented process for producing synthetic gypsum using low-grade limestone and spent acid, an industrial waste. This initiative has reduced our reliance on natural gypsum, diverted industrial waste from disposal, and contributed to cost savings. By promoting waste-to-wealth solutions and extending the lifespan of natural resources, we are ensuring raw material security without compromising ecological balance.
Coupled with responsible mine planning, biodiversity conservation measures and land rehabilitation efforts, this dual strategy helps us maintain uninterrupted raw material availability while preserving natural ecosystems for future generations.

What strategies are being adopted to reduce land, water, and biodiversity impact?
Our sustainability strategy is anchored on the principle of Avoid, Minimise, Restore and Offset. Every mining project undergoes a thorough Environmental Impact Assessment (EIA) covering a 10 km radius around the site. This ensures potential risks to biodiversity, water resources, and local ecosystems are identified early and addressed with targeted conservation plans. Importantly, we do not operate in heritage sites, ecologically sensitive zones, protected areas or areas of high biodiversity value.
For land restoration, we have detailed closure plans for every active mine. While we have not yet closed any sites, our progressive rehabilitation approach ensures that mined-out areas are systematically restored through afforestation, re-vegetation or conversion into water bodies. Native species are reintroduced to enhance biodiversity and re-establish the natural ecosystem.
Water conservation is another pillar of our strategy. All our facilities operate as Zero Liquid Discharge (ZLD) units, recycling 100 per cent of wastewater. In FY 2024-25, we utilised 400.52 million litres of municipal sewage treatment plant (STP) water at our Beawar and Nawalgarh facilities, significantly reducing freshwater dependency. Additionally, we harvested 19,583.5 million litres of rainwater, achieving more than 8x water positivity compared to our freshwater consumption of 2,300 million litres. To further conserve resources, we use EVALOCK, a biodegradable chemical, in mine pits to cut evaporation losses by 30 per cent.
Collectively, these measures ensure that our mining activities not only minimise environmental impact but also actively contribute to local water security, biodiversity conservation, and landscape restoration.

How is your company ensuring compliance with global sustainability standards in mining?
We are fully aligned with the United Nations Sustainable Development Goals (SDGs) and India’s national sustainability commitments. Our environmental practices go beyond statutory compliance, incorporating international benchmarks for resource conservation, emissions reduction, and biodiversity protection.
Compliance is ensured through a layered approach:

  • EIA studies before project initiation.
  • Mine closure and rehabilitation plan at all active sites.
  • Avoidance of high-biodiversity and heritage areas for mining.
  • Audits and monitoring of CO2 emissions, fuel use, and water consumption.

By integrating technologies like OITDS, DATAMINE, CBM and renewable energy use, we are able to consistently demonstrate measurable reductions in fuel consumption, emissions and
water usage. Our approach combining innovation, transparency and proactive rehabilitation places
us in strong alignment with global sustainability frameworks.

How do you engage local communities in sustainable mining initiatives?
Community engagement is integral to our sustainable mining approach. Our initiatives are designed to ensure that local populations benefit directly from our operations. For example, at Beawar and Nawalgarh, we have partnered with municipalities to source STP-treated water, thereby supporting civic infrastructure while reducing freshwater usage.
Our rainwater harvesting projects extend to nearby villages, improving water availability for agriculture and households. We also conduct afforestation and re-vegetation programmes in collaboration with local communities, fostering both environmental and livelihood benefits. Additionally, through awareness and training programmes, we engage our workforce and local stakeholders in adopting water conservation and environmental stewardship practices.
These initiatives not only build trust but also ensure that our sustainability efforts create shared value—where mining supports community development while protecting natural resources.

What future innovations could transform mining into a low-carbon process?
The next phase of sustainable mining at Shree Cement is focused on low-carbon innovations. One of the most promising initiatives we are exploring is the use of biodiesel in mining equipment, which will substantially reduce dependence on fossil fuels and cut greenhouse gas emissions.
We are also working to expand the share of alternative raw materials beyond the current 26.36 per cent, scaling up waste-to-resource initiatives like synthetic gypsum production. Digitalisation will play a bigger role too, with AI-driven predictive mining, advanced blasting techniques and real-time monitoring reducing both fuel consumption and ecological disturbance.
By combining these innovations with our ongoing energy efficiency programmes, we are preparing a pathway towards net-zero emissions in mining. Our vision is to transform mining from a resource-intensive activity into a climate-resilient, low-carbon process that aligns with global decarbonisation goals.

– Kanika Mathur

Economy & Market

TSR Will Define Which Cement Companies Win India’s Net-Zero Race

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Jignesh Kundaria, Director and CEO, Fornnax Technology

India is simultaneously grappling with two crises: a mounting waste emergency and an urgent need to decarbonise its most carbon-intensive industries. The cement sector, the second-largest in the world and the backbone of the nation’s infrastructure ambitions, sits at the centre of both. It consumes enormous quantities of fossil fuel, and it has the technical capacity to consume something else entirely: the waste our cities cannot get rid of.

According to CPCB and NITI Aayog projections, India generates approximately 62.4 million tonnes of municipal solid waste annually, with that figure expected to reach 165 million tonnes by 2030. Much of this waste is energy-rich and non-recyclable. At the same time, cement kilns operate at material temperatures of approximately 1,450 degrees Celsius, with gas temperatures reaching 2,000 degrees. This high-temperature environment is ideal for co-processing, ensuring the complete thermal destruction of organic compounds without generating toxic residues. The physics are in our favour. The infrastructure is not.

Pre-processing is not the support act for co-processing. It is the main event. Get the particle size wrong, get the moisture wrong, get the calorific value wrong and your kiln thermal stability will suffer the consequences.

The Regulatory Push Is Real

The Solid Waste Management (SWM) Rules 2026 mandate that cement plants progressively replace solid fossil fuels with Refuse-Derived Fuel (RDF), starting at a 5 per cent baseline and scaling to 15 per cent within six years. NITI Aayog’s 2026 Roadmap for Cement Sector Decarbonisation targets 20 to 25 per cent Thermal Substitution Rate (TSR) by 2030. Beyond compliance, every tonne of coal replaced by RDF generates measurable carbon reductions which is monetisable under India’s emerging Carbon Credit Trading Scheme (CCTS). TSR is no longer a sustainability metric. It is a financial lever.

Yet our own field assessments across multiple Indian cement plants reveal a sobering reality: the primary barrier to scaling AFR adoption is not waste availability. It is the fragmented and under-engineered pre-processing ecosystem that sits between the waste and the kiln.

Why Indian Waste Is a Different Engineering Problem

Indian municipal solid waste is not the material that imported shredding equipment was designed for. Our waste streams frequently exceed 40 per cent to 50 per cent moisture content, particularly during monsoon cycles, saturated with abrasive inerts including sand, glass, and stone. Plants relying on imported OEM equipment face months of downtime awaiting proprietary spare parts. Machines built for segregated, low-moisture waste fail quickly and disrupt the entire pre-processing operation in Indian conditions.

The two most common failures we observe are what I call the biting teeth problem and the chewing teeth problem. Plants relying solely on a primary shredder reduce bulk waste to large fractions, but the output remains too coarse for stable kiln combustion. Others attempt to use a secondary shredder as a standalone unit without a primary stage to pre-size the feed, leading to catastrophic mechanical failure. When both stages are present but mismatched in throughput capacity, the system becomes a bottleneck. Achieving the 40 to 70 tonnes per hour required for meaningful coal displacement demands a precisely coordinated two-stage process.

Engineering a Made-in-India Answer

At Fornnax, our response to these challenges is grounded in one principle: Indian waste demands Indian engineering. Our systems are built around feedstock homogeneity, the holy grail of kiln stability. Consistent particle size and predictable calorific value are the foundation of stable kiln combustion. Without them, no TSR target is achievable at scale.

Our SR-MAX2500 Dual Shaft Primary Shredder (Hydraulic Drive) processes raw, baled, or loosely mixed MSW, C&I waste, bulky waste, and plastics, reducing them to approximately 150 mm fractions at throughputs of up to 40 tonnes per hour. The R-MAX 3300 Single Shaft Secondary Shredder (Hydraulic Drive), introduced in 2025, takes that primary output and produces RDF fractions in the 30 to 80 mm range at up to 30 tonnes per hour, specifically optimised for consistent kiln feeding. We have also introduced electric drive configurations under the SR-100 HD series, with capacities between 5 and 40 tonnes per hour, already operational at a leading Indian waste-processing facility.

Looking ahead, Fornnax is expanding its portfolio with the upcoming SR-MAX3600 Hydraulic Drive primary shredder at up to 70 tonnes per hour and the R-MAX2100 Hydraulic drive secondary shredder at up to 20 tonnes per hour, designed specifically for the large-scale throughput that higher TSR ambitions require.

The Investment Case Is Now

The 2070 Net-Zero target is not a distant goal for India’s cement sector. It starts today, with decisions being made on the plant floor.

The SWM Rules 2026 are already in effect, requiring cement plants to replace coal with RDF. Carbon credit markets are opening up, and coal prices are not going to get cheaper. Every tonne of coal a cement plant replaces with waste-derived fuel saves money on one side and generates carbon credit revenue on the other. Pre-processing infrastructure is no longer just a compliance requirement. It is a business investment with a measurable return.

The good news is that nothing is missing. The technology works. The waste is available in every Indian city. The government has provided the policy direction. The only thing standing between where the industry is today and where it needs to be is the commitment to build the right infrastructure.

The cement companies that move now will not just meet the regulations. They will be ahead of every competitor that waits.

About The Author

Jignesh Kundaria is the Director and CEO of Fornnax Technology. Over an experience spanning more than two decades in the recycling industry, he has established himself as one of India’s foremost voices on waste-to-fuel technology and alternative fuel infrastructure.

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Concrete

WCA Welcomes SiloConnect as associate corporate member

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The World Cement Association (WCA) has announced SiloConnect as its newest associate corporate member, expanding its network of technology providers supporting digitalisation in the cement industry. SiloConnect offers smart sensor technology that provides real-time visibility of cement inventory levels at customer silos, enabling producers to monitor stock remotely and plan deliveries more efficiently. The solution helps companies move from reactive to proactive logistics, improving delivery planning, operational efficiency and safety by reducing manual inspections. The technology is already used by major cement producers such as Holcim, Cemex and Heidelberg Materials and is deployed across more than 30 countries worldwide.

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Concrete

TotalEnergies and Holcim Launch Floating Solar Plant in Belgium

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TotalEnergies and Holcim have commissioned a floating solar power plant in Obourg, Belgium, built on a rehabilitated former chalk quarry that has been converted into a lake. The project has a generation capacity of 31 MW and produces around 30 GWh of renewable electricity annually, which will be used to power Holcim’s nearby industrial operations. The project is currently the largest floating solar installation in Europe dedicated entirely to industrial self-consumption. To ensure minimal impact on the surrounding landscape, more than 700 metres of horizontal directional drilling were used to connect the solar installation to the electrical substation. The project reflects ongoing collaboration between the two companies to support industrial decarbonisation through renewable energy solutions and innovative infrastructure development.

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