Tesco sources its products from around the world to meet customer demand. To ensure that their global supply chain operates to high ethical standards, Tesco has developed the Ethical Trading Initiative. The ETI Base Code is a comprehensive document describing socially responsible practices that all suppliers and subcontractors must adopt to manufacture Tesco products. Tesco is the largest retailer in the United Kingdom offering grocery, electrical goods, home and electrical, furniture and kitchen, clothing and jewelry, garden, baby and toddler products. In addition to mandatory registration such as SEEDEX, risk assessment, and supplier competency studies, the ETI base code is a reference used by Tesco (in addition to site / supplier-based labor laws). The ETI Base Code is a reference used by Tesco (excluding labor laws where the site/supplier is based).