Transcripción del resumen original del autor: This report details the work undertaken by Working Committee 10 during the triennium 2000– 2003. To analyse the complexities surrounding the development of the gas industries in developing and transitional countries, the work was divided in two: Gas Supply Domestic Market Development Each of these major issues was studied by a corresponding Study Group. The result of Study Group 10.1 who focused on the challenges posed by international projects for gas supply covers the first part of this report, while the second, submitted by Study Group 10.2, contains the description of domestic gas market development in some selected country cases, and the learning and insights that can be extracted from them. Additional information on these subjects will be discussed at the round tables organized within the two WOC10 Sessions which will take place during the World Gas Congress 2003. Some of the issues addressed will also be debated during our sessions at the Technology Forum.