The Group is committed to completely avoid using landfill for disposal and reduce the volume of solid waste gradually, aiming for Zero Landfill. We also embrace the concept of circular economy to reduce total waste, aiming to reduce waste from the sources. In addition, to guarantee no landfill disposal, we adopt an advanced recycling system, which greatly reduce the amount of waste that requires disposal. One of our Group Companies, INSEE Ecocycle Limited, has operated with the concept of circular economy built into its business chain, offering waste management solution wherein waste is turned into a valuable resource through treatment in the cement kilns, which disposes of waste without resulting in pollutants, reduce reliance on fossil fuel, and minimize environmental impact.

The Company also collaborates with the public sector agencies and other industrial sector organizations to formulate a hazardous waste management standard, and has operated in full alignment with our sustainability targets, particularly meeting the challenges of climate change, and effective usage of circular resources.
Using industrial byproducts in place of natural resources and fossil fuel in cement production not only helps with conserving limited natural resources, but also helps with waste disposal concerns. The Group has set the target to increase usage of fuel from waste and material from waste in clinker production, increasing from 0.5 million ton to over 1.4 million ton annually. Concurrently, plan to increase usage of byproducts such as fly ashes and slags by 65% or over 1.7 million ton annually in cement adhesive by the year 2030. These strategies reflect our commitment to reduce any impact to the environment, promote circular economy, and improve the efficiency of resource usage in a responsible manner in the cement industry, such that the industry is further driven towards environment friendliness and long term sustainability
| Performance | Target | ||
|---|---|---|---|
| 2023 | 2024 | 2030 | |
| Usage of Waste Derived Fuels | 664,000 ton | 744,619 ton | > 1.4 mil ton |
| Absorption of by-products | 978,000 ton | 992,167 ton | > 1.7 mil ton |
Circularity Strategy Our circularity strategy focuses on reducing reliance on primary raw materials and extending the lifespan of structures built with our products. We advance sustainability through the following key initiatives:
Circular Products & Alternative Fuel
Increase the use of alternative fuels and circular products to reduce virgin raw material consumption.
Carbon Footprint Reduction
Lower carbon emissions through solutions such as hydraulic cement and closed-loop carbon approaches.
Construction & Demolition Waste Partnerships
Collaborate across Southeast Asia to improve construction and demolition waste management within a circular economy framework.
Zero Waste to Landfill
Reduce waste at the source and divert waste from landfills through advanced recycling practices.
The Group is committed to advancing toward a low-carbon future through three key initiatives:
| Detail | Unit | Year | ||
|---|---|---|---|---|
| 2022 | 2023 | 2024 | ||
| Total waste* | Kilograms | 32,539,110.50 | 94,901,345.11 | 67,132,033.28 |
| Total Non-hazardous waste | Kilograms | 30,827,170.10 | 75,026,686.89 | 45,694,096.50 |
| Garbage and non-hazardous waste - Landfill | Kilograms | - | ||
| Garbage and non-hazardous waste - Incineration with energy recovery | Kilograms | 37,792,192.40 | ||
| Garbage and non-hazardous waste - Incineration without energy recovery | Kilograms | 69,860.00 | ||
| Garbage and non-hazardous waste - other | Kilograms | 7,832,044.10 | ||
| Total Hazardous waste | Kilograms | 1,711,940.40 | 19,874,658.22 | 21,437,936.78 |
| Garbage and hazardous waste - Landfill | Kilograms | - | - | |
| Garbage and hazardous waste - Incineration with energy recovery | Kilograms | 19,664,055.00 | ||
| Garbage and hazardous waste - Incineration without energy recovery | Kilograms | 1,236,716.00 | ||
| Garbage and hazardous waste - other | Kilograms | 537,165.78 | ||
| Total Reused/Recycled Waste | Kilograms | 31,032,034.90 | 38,968,552.10 | 12,214,406.30 |
| Reused/Recycled non-hazardous waste | Kilograms | 30,757,904.90 | 38,800,262.10 | 11,310,834.30 |
| Non-hazardous waste and materials reused (Reuse) | Kilograms | |||
| Non-hazardous waste and materials reused (Recycle) | Kilograms | |||
| Reused/Recycled hazardous waste | Kilograms | 274,130.00 | 168,290.00 | 903,572.00 |
| Hazardous waste and materials reused (Reuse) | Kilograms | 528,082.00 | ||
| Hazardous waste and materials reused (Recycle) | Kilograms | 375,490.00 | ||
| Total Non - Reused/Recycled Waste** | Kilograms | 1,507,075.60 | 55,932,793.01 | 54,917,626.98 |
Remark: Further, the Company disclosed its waste and waste volume data (according to the Stock Exchange of Thailand’s ESG Data). The disclosed information covers the Group's cement segment, both domestic and international, which includes Siam City Cement Public Company Limited (including head office), Siam City Cement (Vietnam) Company Limited, Siam City Cement (Bangladesh) Company Limited, and Siam City Cement (Lanka) Company Limited, as well as the Group's waste heat power generation business through Siam City Power Company Limited.
(*) Exclude the total weight of waste generated outside of the Company, which is not responsible for the waste disposal or treatment cost.
(**) Non-Reused/Recycled Waste is calculated as Total Waste – Total Reused/Recycled Waste. This waste is disposed of through Incineration with energy recovery, Incineration without energy recovery, and Other methods.
We are aware of the adverse effects waste has on the environment, and so the Group is committed to using resources efficiently and reducing waste resultant of the production processes. Our approach sees reduction of the primary resources used in production, while also minimizing impact to the environment and reducing waste disposal cost. Waste volume is consistently tracked and waste is catogorized and managed systematically. We promote usage of circular economy in the production processes to address the issues of waste in a sustainable manner, adopting the waste management hierarchy with special emphasis on waste prevention, reduction, reuse, recycling, and processing into energy source.

