Our Commitment
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
Ambition
2030 Targets Compared with the 2020 Baseline
| Base year 2020 |
2023 | 2024 | 2025 | TARGET 2030 |
|
|---|---|---|---|---|---|
| Usage of Waste Derived Fuels (ton) | 585 | 664 | 744.619 | 911 | > 1.4 Million tons / year |
| Absorption of by-products (ton) | 867 | 978 | 992.167 | 1,278 | > 1.7 Million tons / year |
Strategy
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.
Product Life Cycle Assessment (LCA) and Environmental Labeling
The Company conducts Life Cycle Assessments (LCA) for its clinker and cement products to evaluate environmental impacts throughout the product life cycle, from raw material sourcing, production, transportation and use through to end-of-life disposal. The results of the LCA studies are used to prepare and disclose environmental information in the form of Type III Environmental Product Declarations (EPDs) under the International EPD System. The relevant EPD registration numbers are EPD-IES-0004957:002, EPD-IES-0020369:001, EPD-IES-0020368:001, EPD-IES-0020355:001, EPD-IES-0020370:001, and EPD-IES-0020371:001. The EPDs are prepared in accordance with EN 15804+A2 and EN 16908, covering a total of 16 clinker and cement products, and have been independently verified. Further details of the EPDs are available at: https://environdec.com/library?company=81d3e627-02c8-4137-eb7a-08d98fec21cd
In addition, the LCA results are used to calculate the Carbon Footprint of Product (CFP). The Company has currently obtained CFP certification for a total of 23 clinker and cement products, reflecting its commitment to developing low-carbon products and reducing greenhouse gas emissions throughout the value chain.
The Company also applies the results of its LCA studies to product development strategies. The assessments indicate that clinker is a major contributor to the environmental impacts and greenhouse gas emissions associated with cement. Accordingly, the Company continues to reduce the clinker content in its products and develop lower-carbon cement solutions. EPDs are also used to support decision-making by project owners, designers, and building developers in comparing construction material.
Performance and outlook
Waste management: Waste Generation
| 2023 | 2024 | 2025 | |
|---|---|---|---|
| Total waste generated (Kilograms) (8) | 9,938,193.00 | 12,301,715.00 | 14,286,060.00 |
| Total non-hazardous waste (kilograms) | 8,409,043.00 | 10,612,955.00 | 12,852,671.00 |
| Non-hazardous waste - Landfilling (Kilograms) | 700,350.00 | 1,151,020.00 | 1,244,110.00 |
| Non-hazardous waste - Incineration with energy recovery (Kilograms) | 1,037,174.00 | 1,241,499.00 | 731,349.00 |
| Non-hazardous waste - Incineration without energy recovery (Kilograms) | 62,070.00 | 69,860.00 | 39,400.00 |
| Non-hazardous waste – Others (kilograms) | 6,609,449.00 | 8,150,576.00 | 10,837,812.00 |
| Total hazardous waste (kilograms) | 1,529,150.00 | 1,688,760.00 | 1,433,389.00 |
| Hazardous waste - Incineration with energy recovery (Kilograms) | 229,748.00 | 416,673.00 | 181,601.00 |
| Hazardous waste - Incineration without energy recovery (Kilograms) | 1,284,730.00 | 1,242,552.00 | 1,216,185.00 |
| Hazardous waste – Others (kilograms) | 14,672.00 | 29,535.00 | 35,603.00 |
Waste management: Waste reuse and recycling
| 2023 | 2024 | 2025 | |
|---|---|---|---|
| Total reused/recycled waste (Kilograms) | 6,569,281.00 | 8,005,808.00 | 10,814,510.00 |
| Reused/Recycled non-hazardous waste (Kilograms) | 6,558,791.00 | 7,980,208.00 | 10,784,550.00 |
| Reused non-hazardous waste (Kilograms) | 1,371,730.00 | 248,060.00 | 52,100.00 |
| Recycled non-hazardous waste (Kilograms) | 5,187,061.00 | 7,732,148.00 | 10,732,450.00 |
| Reused/Recycled hazardous waste (Kilograms) | 10,490.00 | 25,600.00 | 29,960.00 |
| Reused hazardous waste (Kilograms) | 1,310.00 | 22,920.00 | 20,060.00 |
| Recycled hazardous waste (Kilograms) | 9,180.00 | 2,680.00 | 9,900.00 |
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.
Data for 2023–2024 include the head office of Siam City Cement Public Company Limited; from 2025, the boundary covers cement manufacturing operations only. Coverage: 100% of the Group's cement manufacturing operations, or 5 of 18 entities across all Group business segments (27.78%).
(*) 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.
Approach to Waste Management
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.
