https://jurnal.tekmira.esdm.go.id/index.php/imj <span>This Journal is published periodically two times annually : April and October, containing papers of research and development for mineral and coal, including exploration, exploitation, processing, utilization, environment, economics and policy. The editors only accept relevant papers with the substance of this publication.</span><p>doi: <a href="http://dx.doi.org/10.30556/imj">10.30556/imj</a></p><p>E-ISSN: 2527-8797</p><p>P-ISSN: 0854-9931</p><p>Accredited as a scientific journal based on: Decree of Director General of Research and Development Strengthening, Ministry of Research, Technology and Higher Education of the Republic of Indonesia No. 200/M/KPT/2020 Valid until Volume 27 Number 2 Year 2025</p> Balai Besar Pengujian Mineral dan Batubara tekMIRA en-US Indonesian Mining Journal 0854-9931 <p><span>Indonesian Mining Journal provides immediate open access to its content on the principle that making research freely available to the public to supports a greater global exchange of knowledge.</span></p><p><span><br /></span></p><p><a href="http://creativecommons.org/licenses/by-nc/4.0/" rel="license"><img style="border-width: 0;" src="https://i.creativecommons.org/l/by-nc/4.0/88x31.png" alt="Creative Commons License" /></a><br />This work is licensed under a <a href="http://creativecommons.org/licenses/by-nc/4.0/" rel="license">Creative Commons Attribution-NonCommercial 4.0 International License</a>.</p><p><img src="/public/site/images/bachtiar/cadenas2.png" alt="" width="224px" height="90px" /></p> https://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/1751 Copyright (c) 2026 http://creativecommons.org/licenses/by-nc/4.0 2025-10-28 2025-10-28 28 2 https://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/1750 Copyright (c) 2026 http://creativecommons.org/licenses/by-nc/4.0 2025-10-28 2025-10-28 28 2 https://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/1749 Copyright (c) 2026 http://creativecommons.org/licenses/by-nc/4.0 2025-10-28 2025-10-28 28 2 https://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/1748 Copyright (c) 2026 http://creativecommons.org/licenses/by-nc/4.0 2025-10-28 2025-10-28 28 2 https://jurnal.tekmira.esdm.go.id/index.php/imj/article/view/1747 Copyright (c) 2026 http://creativecommons.org/licenses/by-nc/4.0 2025-10-28 2025-10-28 28 2