In the context of debates about the definition and origins of globalisation and the role of African agency in the Atlantic slave trade, this chapter examines the commodities traded by Portuguese New Christian slave traders on the Upper Guinea coast in the early 17th century. Based on detailed account books of three slave traders discovered in the Inquisition section of the Archivo General de la Nación in Lima, Peru, it shows how Africans often determined the types and prices of goods exchanged and forced Europeans to adapt to local trade networks. Hence while commodities such as Indian textiles and beads reflected the position of the Portuguese slave traders in a global trading network, at the same time they were actively involved in trading locally produced cloth and beeswax as well as slaves.