The 7 th Engineering International Conference on Education, Concept, and Application of Green Technology, held at Oak Tree Hotel in Semarang, Central Java, Indonesia on 18th October 2018. It is the sixth international conference organized by the Engineering International Committee (EIC) of Engineering Faculty, Universitas Negeri Semarang which included several countries: Indonesia, Malaysia, Thailand, Australia, and Philippines. More than 100 participants from those countries attended the conference and took part in the activities to make this conference as a media for information exchange, communication and discussion to develop science and technology alongside with improvement of learning methodology. Moreover this conference provides a discussion forum to establish research relations and to find global partners for future collaboration. Previous International Conferences organized by EIC were also held in Semarang on January 2013, November 2013, September 2014, September 2015, October 2016, and October 2017
In this conference, participants are also welcomed to take a part in mini symposium. The works of the mini symposium participants are served in this mini symposium proceeding. This proceeding contains of several articles that were presented in parallel sessions during the conference that covered engineering areas which opens the opportunity for the participants to share their research results, exchange new ideas, information, and application related to the theory, design, development, implementation, testing or evaluation in all areas of technology. Finally, we are grateful for all participation and cooperation provided by all parties to make this International Conference successfully took place. The organizers of the 6 th Engineering International Conference and the editors of the proceedings also thank all the authors who made a huge effort in preparing papers to this conference. We are expecting feedback and suggestion for improvement of publication, article admission, conference and related processes to upgrade proceeding quality in the future.