This volume, by offering a score of fresh insights derived from a wide variety of archaeological and textual sources, brings to life an important overseas trading port in Southeast Asia - Quanzhou. During the Song and Yuan dynasties active official and unofficial engagement in trade had formative effects on the maritime trade of Quanzhou and its social and economic position both regionally and supraregionally. in the first part subjects such as the impact of the Song imperial clan and the local elites on these developments, the economic importance of metals, coins, paper money, and changes in the political economy, are discussed. The second part concentrates on the quantitative and qualitative analysis of archaeological data and materials, the investigation of commodities from China, their origins, distribution and final destinations, the use of foreign labour, and the particular role of South Thailand in trade connections, thus supplying the hard data underlying the main argument of the book.