“…When it comes to natural or technical resources as identified by PMBoK, this topic has received significant attention in the field of sustainable project management as environmental sustainability is measurable when addressing consumption of hazardous materials, water/ energy consumption and reduction, waste management, reduction of pollution and emissions (Armenia, Dangelico, Nonino, and Pompei, 2019;Kleindorfer, Singhal, Van Wassenhove, 2005;Marcelino-Sádaba, González-Jaen, Pérez-Ezcurdia, 2015;Silvius, Kampinga, Paniagua, Mooi, 2017;Martens, Carvalho, 2017); • Project Integration: According to the study conducted by Martens and Carvalho (2016), Environmental Policies and Resources Saving factor which consists of nine variables such as use of natural resources, management of environmental policies, energy and water consumption and many more is the key factor of sustainability in project management. Their findings demonstrate that project managers focus on the environmental impact of projects and consider environmental standards and policies, particularly in the project initiation phase (Martens and Carvalho, 2016). Another study by (Liu, Kasturiratne and Moizer, 2012) investigated why companies integrate sustainability aspects in their supply chain management and identified the drivers and obstacles on their way.…”