Unlock Mining Potential
Who we are
We are a team of experienced geology and mining professionals dedicated to providing top-notch services to the mining industry. Our expertise spans the entire mining lifecycle, from exploration to mine closure, with a strong focus on ESG.
At HDJ, we believe in teamwork and commitment, delivering expert solutions to clients, primarily in Indonesia and Southeast Asia, for commodities like Coal, Nickel, Gold, Copper, Bauxite, Tin, and Iron Sand. Many of our team members hold “competent person” status for various local and international codes. With deep local knowledge, we offer services in exploration, mine planning, geotechnical assessments, technical studies, JORC/KCMI reporting, asset valuation, and mine operation management.
Our Commitment
At the heart of our values are integrity, innovation, and a dedication to building strong, lasting relationships with our clients. We are committed to delivering top-tier mining consultancy services in Indonesia, ensuring that every project we undertake is executed with precision and professionalism. Our team of experts combines years of industry experience with cutting-edge techniques to provide reliable and sustainable solutions tailored to your needs.
Beyond delivering results, we prioritize developing trust and maintaining open, long-term relationships with our clients, supporting them throughout their mining journey. With us, you can be confident that your vision will not only be realized but also nurtured with care, collaboration, and unwavering support.
Our Team
Yudi Suherlan
Director and Principal Geologist
Results-driven principal geologist with extensive experience in geological assessment and resource evaluation. Proven expertise in mineral exploration, data analysis, and project management. Strong track record of achieving successful outcomes in complex geological projects. Adept at collaborating with teams to enhance productivity and drive projects to completion. Committed to continuous improvement and professional development.
Hendika Pradonggo
Director Marketing
Experienced geologist with a strong background in the mining and metals industry, specializing in mineral exploration, coal, nickel, and feasibility studies. Proven leadership in managing operations and ensuring efficient day-to-day business functions. Skilled in developing programs that enhance operational efficiency. Committed to driving exploration and mine site development through robust processes.
James Hitt
Principal Mining Engineer
I have over 40 years of experience in surface coal mining, specializing in mine planning, evaluation, budgeting, environmental compliance, and economic assessment. My work spans major coal companies across the U.S., including states like Alaska, New Mexico, and Wyoming, as well as international projects in India, Mongolia, Mexico, Indonesia, and Colombia. I hold Professional Engineer (PE) licenses in North Dakota (No. 2442) and Wyoming (No. 6465).
Buldansyah
Senior Geologist
Senior geologist with extensive experience in gold exploration and mining. Proven track record in geological mapping, resource estimation, and feasibility studies. Skilled in managing exploration projects from inception to completion, ensuring compliance with industry standards. Strong analytical skills with a focus on optimizing resource recovery and minimizing environmental impact. Committed to driving successful outcomes through effective leadership and collaboration.
Mega Firdani
Cartographer/ Geologist
Geologist with substantial experience at PT Geobara Indonesia, specializing in coal mining and exploration. Proficient in geological mapping, resource assessment, and data analysis. Skilled in conducting feasibility studies and ensuring environmental compliance. Strong team player, committed to achieving project goals. Focused on advancing sustainable mining practices and optimizing resource potential.
Riki Rikmawan
Senior Mining Engineer
Mining engineer with expertise in resource evaluation and mine planning. Proven skills in geological assessment and operational optimization, contributing to successful project outcomes. Strong analytical and problem-solving abilities, committed to delivering high-quality results. Adept at collaborating with multidisciplinary teams to drive efficiency in mining operations. Passionate about sustainable practices and continuous professional development.
Get in Touch
Ready to explore new opportunities? Contact us today and let’s start your mining journey!