The objective of this research was to propose a methodology for the evaluation of the value chain of the sector dedicated to the manufacture of chemical substances and products. To carry it out, a systematic literature review was carried out, whose conceptual basis was Porter's value chain model. It was found that this model is applicable in different sectors, thus allowing this evaluation to be carried out in the sector in question. The proposed tool, of a qualitative nature, evaluates both primary and support activities that make up the generic value chain. In addition, a series of questions related to Corporate Social Responsibility (CSR) in this sector is proposed. It is concluded that the value chain represents a powerful evaluation tool, with the capacity for flexibility and adaptation to the contexts and business sectors to be evaluated.

Keywords
assessment tool, chemical industry, Corporate Social Responsibility, value chain.