A supplier is a person or company that provides goods or services to another business or organization. They play a crucial role in the supply chain by ensuring that products are available for manufacturers, retailers, or other end-users. Suppliers can offer a wide range of items, from raw materials to finished products. In many industries, suppliers are essential for maintaining production and meeting customer demand. They often establish contracts with businesses to deliver specific quantities of products at agreed-upon prices. Effective supplier relationships can lead to better pricing, quality, and reliability for companies like manufacturers and retailers.