Business-to-business (B2B), also called B-to-B, is a form of transaction between businesses, such as one involving a manufacturer and wholesaler, or a wholesaler and a retailer. Business-to-business refers to business that is conducted between companies, rather than between a company and individual consumer. Business-to-business stands in contrast to business-to-consumer (B2C) and business-to-government (B2G) transactions. Business-to-business transactions are common in a typical supply chain, as companies purchase components and products such as other raw materials for use in the manufacturing processes. Finished products can then be sold to individuals via business-to-consumer transactions. In the context of communication, business-to-business refers to methods by which employees from different companies can connect with one another, such as through social media. This type of communication between the employees of two or more companies is called B2B communication.