“…Green supply chain is conceived by different research workers from four different perspectives, namely, (a) 'Green supply chain refers to the way in which innovations in SCM and industrial purchasing may be considered in the context of the environment' (Chen, Shih, Wu & Spyur, 2008); (b) Environmental SCM consists of the purchasing function's involvement in activities which include reduction, recycling, reuse and the substitution of materials (Harris & Naim, 2006); (c) 'The practice of monitoring and improving environmental performance in the supply chain…' (Nones, Morques & Evgenio, 2004); (d) 'Integrating environmental thinking into a SCM, including product design, material resourcing and selection, manufacturing processes, delivery of the final product to the consumer as well as end-of-life management of the product after its useful life' (de Brito & Vander Laan, 2010). From these four definitions, we see that there is a range of author focus and purpose on green supply chains and their management, that is, purchasing, operations, marketing or logistics, etc., also influences the definition.…”