During c. 1810-59 over 260 British merchant houses operated in the River Plate or Chile, and many more in the rest of Latin America. These were times when Anglo-Latin American economic relations remained largely commercial, since the region was an important commercial partner of Britain. British investment was unimportant during this period in the region. The main economic activity of these mercantile houses was the import of textiles in exchange for bullion, specie, bills of exchange and local produce. Yet the textile trade has received little attention, despite the importance of the region as a market for British manufacturers. This paper describes in detail the relations between textile manufacturers and/or merchants in Britain and merchants on the spot, in particular for the marketing of textiles, the backbone of the business of British merchants operating in Latin America. This paper focuses on the particular case of the Southern Cone during c. 1810-59.