An examination of the value creation process in Iran’s oil and gas sector reveals an imbalanced approach toward smart investments and sustainable value creation within this industry. Diversification of petrochemical products offers access to new markets, reduces the vulnerability of Iran’s petrochemical industries, increases foreign currency earnings, and ensures optimal resource utilization. To achieve smart investment in the petrochemical value chain, this study specifically aims to optimize the ethane value chain by evaluating seven selected investment options. Key criteria affecting the selection of value chain segments were identified and structured into a five-criteria investment evaluation model. Each proposed project was individually assessed and scored using this model. Given the importance of the market criterion, a weight of 4—representing the highest weight in the model—was assigned to it, followed by a weight of 3 each for the financial-economic and technology criteria, 2 for the feedstock and logistics criterion, and 1 for the strategic criterion. The scoring was conducted quantitatively, based on the ranking of the relevant indicators for each criterion. According to the scores obtained, the options were ranked individually across each criterion and then aggregated. The results showed that the combined project comprising acetic acid, vinyl acetate monomer, and ethylene-vinyl acetate, as well as the styrene monomer project and the heavy polyethylene project, received the highest evaluation scores, respectively. The proposed model and its results, besides developing a robust evaluation framework, provide a comprehensive understanding of the valuable ethane value chain, offering policymakers, investors, and industrial stakeholders a reliable guide for future decision-making in Iran’s petrochemical sector. JEL Classification: M21, O14, Q40. Keywords:Value Chain, Investment, Balanced Development, Evaluation Model.
Daneshi S S, Dastkhan H. Designing an Evaluation Model for Investment Opportunities in The Iranian Petrochemical Industry؛ Case Study: Ethane Gas Value Chain. QEER 2025; 21 (87) :221-255 URL: http://iiesj.ir/article-1-1685-en.html