After increasing of concerns about environment from consumers, governments and communities around the world, manufacturing companies start to develop environmental friendly programs such as development of Green products, Green brand, Green technology and Green innovation. Literature review showed that unlike doing many studies regarding the relationship between intellectual capital and innovation in organizations, researchers paid little attention to the environmental aspects of these concepts. So this study aimed to investigate the role of Green intellectual capital in different type of organizational innovation with regard to the environmental aspects. The population of this research is all companies active in the oil, gas and petrochemical industries in Khuzestan province, which includes 38 companies. Also in this study census method is used to gather required data. Finally collected data were analyzed with smartpls software and conceptual model was tested. The final results of this study showed that intellectual capital can enhance all types of environmental innovation including managerial innovation, product innovation, technological innovation and process innovation.

Turbulent environment, increasing competition and diverse and changing needs of customers, highlighted innovation role to promote firms’ competitive advantage. The limitations of knowledge sources and the need to respond quickly to their changes have led them to collaboration. In recent years, researchers have also been studying how and how to collaborate effectively. This paper aims to measure the impact of innovation on knowledge-based companies by typology of types of partnership-based, structured-based collaboration. A questionnaire was distributed among 185 sample companies, and they were asked to specify the types of cooperation. The results show that scientific cooperation is the most important collaboration type in creating innovation and market collaboration has the least effect on creation of product innovation. Of course, in this section, cooperation with the consultant has had a significant effect on the creation of innovation; however, cooperation with customers, competitors and provider has not had a significant effect on the creation of innovation. In the second part, the results also show that upstream collaboration has a significant effect on innovation and downstream collaboration has the least impact on creativity innovation.

Environmental issues are increasingly important to manufacturing industries, and decision-makers are faced with increasing public sensitivity, strict environmental regulations, and growing stakeholder pressure, in addition to other fundamental issues, such as global warming and soil erosion. Therefore, the current research was conducted with the aim of investigating the role of Green organizational culture, Green innovation strategy, and environmental regulations in predicting Green performance and competitive advantage through Green innovation in Milad Tile Company of Yazd. For this purpose, using a descriptive-survey research method and available sampling, 118 employees of this company were selected as the statistical sample of the research. The tools for data collection were standard questionnaires, and to measure the variable of Green organizational culture, the standard questionnaire of Banerjee et al. (2003) and Fraj et al. (2011) was used; for the Green innovation strategy variable, the standard questionnaire of Song and Yu (2018); for the environmental regulation variable, the standard questionnaire of Yang et al. (2017); for the Green innovation variable, the standard questionnaires of Chen (2008), Chen et al. (2006), and Roper & Tapinos (2016); for the Green performance variable, the standard questionnaire of Yu et al. (2017); and for the competitive advantage variable, the standard questionnaires of Chandler & Hanks (1994) and Zhou et al. (2009) were used. The hypotheses were tested using the structural equation modeling method. The research findings showed that Green organizational culture and environmental regulations improve Green innovation. Green organizational culture also improves Green performance and competitive advantage. Additionally, the results showed that Green innovation improves Green performance, and that Green organizational culture and environmental regulations improve Green performance through the mediating variable of Green innovation. Environmental regulations also improve competitive advantage through the mediating variable of Green innovation. Finally, it was suggested that Milad Tile Company of Yazd should pay more attention to Green innovation strategies in its overall strategy, and also that more focus should be placed on environmental considerations in the organizational culture of the company.