Abstract – This study investigates the green procurement adopted by Thai electronic companies. The relationship between green procurement adoption and product performance, purchase price, the organization’s environmental concerns, trading partners, and health and safety issues, is studied. Companies in the electronic industry and holding ISO 14001 certification in Thailand before December 2004 were sampled for the empirical study. The data were then analyzed using statistical package for the social sciences, to verify the hypothetical construction of the study. The results indicate that the Original Equipment Manufacturing (OEM) and Original Designing and Manufacturing (ODM) companies in Thailand’s electronic industry have adopted green procurement practices in response to the current wave of global environmental concern. Key Words – Green supply chain, Environmental performance, Green procurement, and Thailand. I. INTRODUCTION With increasing awareness of environmental protection worldwide, the green trend towards conserving the Earth’s resources and protecting the environment is overwhelming, exerting pressure on corporations in Thailand. The pressure accompanying globalization has prompted enterprises to improve their environmental performance (Zhu and Sarkis 2006). Consequently, corporations have shown growing concern for the environment. Increasing environmental concern has gradually become part of the overall institutional culture and, in turn, has helped to re-focus the strategies of corporations. Global warming, reductions in air quality, pollution of waterways and widespread loss of biodiversity are but a few examples of the types of environmental impact that can be attributed to the coordinated activity of organizations in a supply chain. Much of this arises from manufacturing organizations that continue to produce large amounts of unnecessary waste or emissions rather than investing in better technologies or practices to prevent its generation at the source (Klassen, 2000; King and Lenox, 2002). The “green” component to supply chain management involves addressing the influence of supply chain management on the natural environment. Motivated by an environmentally-conscious mindset, it can also stem from a competitive motive within organizations (Hervani, Helms, and Sarkis 2005). This study investigates the determinants of green procurement adoption for successful Green Supply Chain Management by the electrical and electronics industry in Thailand, which is dominated by OEM (original equipment manufacturing) and ODM (original designing and manufacturing) companies. The prime objective of this study is to understand the determinants of green procurement adoption by Thai electronic companies. II. LITERATURE REVIEW Description of Green Procurement Practices Purchasers can improve the environmental performance of products and services by expressing environmental preferences through so called “green procurement”. Carter, et al. (1998) defined environmental purchasing as consisting of involvement in activities that include the reduction, reuse and recycling of materials in the process of purchasing. Procurement or purchasing decisions will have an impact on the green supply chain through the purchase of materials that are either recyclable or reusable, or have already been recycled (Sarkis, 2003). Green Procurement is a solution for environmentally concerned and economically conservative business. It is a concept of acquiring a selection of products and services that minimizes environmental impact. It requires a company or organization to carry out an assessment of the environmental consequences of a product at all the various stages of its lifecycle. This means considering the costs of securing raw materials, and manufacturing, transporting, storing, handling, using and disposing of the product. "Green" products reduce waste, improve energy efficiency, limit toxic by-products, contain recycled content or are reusable. With today’s application of green procurement:  Electronics industries comply with lead free (WEEE) and Restriction of Hazardous Substances (RoHS) to minimize the hazardous or toxic in electronic parts.  Furniture manufacturing industries change their strategy to comply with green concern in the use of water-based finishes as an alternative to solvent- based ones.  Toy manufacturers strictly control and follow ISO standards to limit the toxicity in toy components after An Empirical Investigation of the Determinants of Adoption of Green Procurement for Successful Green Supply Chain Management Mohammad Asif Salam 1 1 School of Management, Assumption University, Bangkok, Thailand (mbamas@yahoo.com) 978-1-4244-2330-9/08/$25.00 ©2008 IEEE 1038