In principle, Chapter 7 covers all outsourced activities. Therefore, the general requirements for supplier selection, approval and performance management apply equally to raw materials as to other outsourced activities. There may not be a need for Quality/Technical Agreements (QTA) with the supplier; this will depend on the nature of the arrangement between the parties. For example, if the purchaser contracts the supplier to manufacture raw materials for them, then the arrangements would need to be covered by a Quality/Technical Agreement. However, if the purchaser simply buys raw materials the supplier a QTA would not be required.