Environmental

Innovation Using Waste Paint Buckets to Compost Food Waste, Producing Fertilizer as a Substitute for Chemical Fertilizers

20 November 2025

The Company has applied the concept of resource efficiency to its environmental projects through the development of the ‘Used Paint Bucket’ innovation, transforming them into devices for composting food waste. The buckets are adapted to suit the biological fermentation process. Once the food waste is fully decomposed and fermented, it produces biofertilizer that can be used to nourish plants and green areas in the projects, replacing chemical fertilizers. This measure helps reduce the amount of food waste that needs to be disposed of, decreases the demand for chemical fertilizers, which contribute to greenhouse gas emissions during production, transportation, and disposal (Scope 3 Emissions), and promotes resource circulation (Circular Economy).

The expected outcomes of the project include a 100% reduction of organic waste that needs to be transported out of the project, based on the amount of food waste processed through the composting system. It can reduce the use of chemical fertilizers in the project area by over 50% per year. The estimated reduction in greenhouse gas emissions from the life cycle of chemical fertilizers (production–transport–disposal) is approximately 0.9–1.5 tCO2e per year per project, depending on the project size and amount of food waste. This also supports comprehensive waste management.