Date of Publication

2025

Document Type

Master's Thesis

Degree Name

Master of Science in Environmental Engineering and Management

Subject Categories

Engineering

College

Gokongwei College of Engineering

Department/Unit

Chemical Engineering

Thesis Advisor

Michael Angelo B. Promentilla

Defense Panel Chair

John Frederick D. Tapia

Defense Panel Member

Kathleen B. Aviso
Raymond Girard R. Tan

Abstract (English)

It is forecasted that climate financing will continue to increase, especially in developing economic regions such as the ASEAN-5, where natural resource extraction plays a critical role in efforts to meet climate goals. In an international investment landscape where the environmental, social, and governance (ESG) concept is adapted to ascertain sustainability with business performance, this paper provides a framework to evaluate corporate sustainability performance through ESG materiality score that may impact investment decisions and provide a benchmark to peers. Data envelopment analysis (DEA) is employed to determine the financial efficiencies of companies from ASEAN-5 of the extractives industry from 2021 to 2023. ESG materiality scores are determined using the dynamic technique for order preference by similarity to ideal solution (TOPSIS) based on dynamic entropy weights derived from their scores at ESG indicators selected from materiality topics developed by the Sustainability Accounting Standards Board (SASB) and extracted from Refinitiv database. The results show that ESG factors under environmental pillars influenced the ESG materiality scores the most, with a total 68.2% criteria weight compared to 25.4% and 6.4% for social and governance pillars, respectively. Two Indonesian mining companies have the highest overall ESG materiality scores among the selected companies of the ASEAN-5 extractives industry. Mid-tier performers are oil and gas companies that look to improve in one or two ESG pillars, while the remaining are the least-performing companies that need to improve across all three pillars. The derived ESG materiality scores are distinct from the Refinitiv scores as they provide the enterprise managers with financially efficient peer companies with top corporate sustainability practices that they can extensively study to improve their own sustainability performance with the additional advantage of identified ESG factors to prioritize. Lastly, investors and policymakers can refer to the results to guide investment decisions and institute mechanisms to support and improve ESG adoption in the region.

Abstract Format

html

Abstract (Filipino)

None

Abstract Format

html

Language

English

Format

Electronic

Keywords

Sustainable development

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Embargo Period

2026

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