Abstract: A supply chain is defined as all the various points involved in the production and distribution of goods, from the stage of supply to the final customer. While agriculture is the most important industry in rural areas and provides livelihoods for 70% of the world's poor, it is also the industry that creates the greatest disconnect between suppliers and retailers. In addition, due to lack of transparency, buyers and customers cannot be sure of the true value of a product or service. The proposed system is an agricultural supply chain model using the Ethereum platform. Smart contracts are implemented in different stages of the supply chain. These contracts guarantee to meet all predefined conditions before conducting transactions ensuring security, reliability and transparency. This can give consumers greater confidence in the products they buy, and it is also an opportunity to reward producers who use good agricultural practices to develop their products. This will ultimately lead to sustainable farming practices and responsible consumption. Keywords: Supply Chain; Ethereum; Smart Contracts; Transparency; Agriculture;