21 Chapter IV Results and Analysis The research findings suggest that the integration of blockchain technology holds significant promise for the used cooking oil supply chain by enhancing traceability with their customers and adapting their collection strategies more effectively to meet evolving market demands. Additionally, blockchain's ability to address issues of trust and transparency, as well as facilitate information sharing, can contribute to the overall sustainability of the waste management industry by supporting the integration of small collectors and optimizing resource management practices. By, improving data confidentiality, and facilitating collaboration among supply chain partners, blockchain can empower small collectors to build stronger relationships. IV.1 Overview of Blockchain Implementation in Agri-Food Sectors Examining the application of blockchain technology within the agri-food industry, as evidenced by the existing literature, provides valuable insights that can inform the development of a digitalization system for the used cooking oil supply chain (Zhao et al., 2019)(Motta et al., 2020). Case studies on successful blockchain implementations in the organic food sector, for instance, highlight the potential for this technology to enhance traceability, improve data confidentiality, and facilitate collaboration among supply chain partners (Hilten et al., 2020). Similarly, the literature on blockchain applications in broader agri-food value chains indicates that this technology can address issues of trust and transparency, enabling the sharing of information critical to improving overall chain performance (Zhao et al., 2019). One study, for example, found that blockchain technology can facilitate "easy verification of certification data, accountability, improved risk management, insight into trade transactions, simplified data collection and exchange, and improved communication" among stakeholders in the organic food supply chain (Demestichas et al., 2020). Another study emphasized that blockchain's 22 ability to address "trust and transparency" and "facilitate information sharing" are key drivers for its adoption in the agri-food industry (Motta et al., 2020). These findings suggest that the integration of blockchain technology could hold significant promise for the used cooking oil supply chain, particularly in empowering small collectors to build stronger partnerships with their customers and streamline their operations (Hilten et al., 2020) (Zhao et al., 2019). The integration of blockchain technology could hold significant promise for the used cooking oil supply chain, particularly in empowering small collectors to build stronger partnerships with their customers and streamline their operations. By leveraging blockchain's capabilities to enhance traceability, improve data confidentiality, and facilitate collaboration among supply chain partners, small collectors can gain better access to critical information regarding customer preferences and supply trends. This, in turn, can enable them to adapt their collection strategies more effectively to meet evolving market demands. Additionally, blockchain's ability to address issues of trust and transparency, as well as facilitate information sharing, can further strengthen the relationships between small collectors and their customers, fostering a more transparent and accountable ecosystem within the used cooking oil supply chain. These benefits can ultimately contribute to the overall sustainability of the waste management industry by supporting the integration of small collectors and optimizing resource management practices. Moreover, the successful implementation of blockchain solutions in the food industry not only enhances the operational efficiency of small collectors but also assures customers of the ethical sourcing and quality of the used cooking oil, which is critical in maintaining consumer trust and satisfaction (Hilten et al., 2020). (Hilten et al., 2020) (Zhao et al., 2019) (Rejeb et al., 2020) 23 IV.2 Perceptions and Experiences of Customers The household interview results indicate that they need something more practical and easier. They want to do it if it benefits them, whether it is cash or even household supplies. However, some households use used cooking oil until it really becomes sludge without thinking about their health, which is caused by economic problems. To address this issue, implementing a more efficient digital platform for the collection and conversion of used cooking oil could encourage greater participation while also mitigating the risks associated with improper disposal, such as pollution and health hazards. Some households want to use the application if the data is well secured, and the coin can really be changed into something when it reaches the goals.