<![CDATA[Information related to national mining results is still difficult for the public to access online. Price and production data are generally only known to certain parties, such as mining companies (miners) and trading companies. National pricing is adjusted to weekly market conditions, using the Indonesia Coal Index (ICI) as a reference for the domestic market and the Coal Reference Price (HBA) for exports. This situation limits transparency, necessitating a web-based system capable of presenting mining data in a structured and easily accessible manner. This study aims to design and develop a Web-Based National Mining Results Monitoring Information System to display price and production data in real-time. The method used is Research and Development (R&D) through literature review and interviews, with design using the Unified Modeling Language (UML). The system is equipped with content update features without code changes and chat support between visitors and administrators. Testing using the Black Box Testing method shows that all functions operate according to specifications. The developed system can be accessed via the website hasiltambangindonesia.com.]]>
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