The use of value chains as a method of determining the relationships between stages in an industry and as a method of computing the net value of production processes, has had a long history.

Emphasis on value chains is important for one reason: While some analysis of value chains focus on the mechanics and framework of the process, it is in the analysis of value chains that market opportunities are identified and acted upon. In the current environment of structural and other changes in global gas markets, traditional opportunity analysis and conclusions are no longer sufficient for Trinidad and Tobago and its Natural Gas-based industries.