PT Eksplorasi Nusa Jaya (PT.ENJ) is a geological survey, mapping, and technical support company established in 2008, holding a Mining Services License (IUJP) from the Directorate General of Minerals and Coal. Formerly known as PT Cyprus Amax Indonesia (1997–2007), PTENJ provides high-standard and cost-effective support for exploration and mining projects across Indonesia.
With 60 professional staff and over 120 contractor personnel, PTENJ delivers services in project management, geological and drilling support, geotechnical slope remediation, digital mapping and 3D modelling, custom database and Android application development, logistics, and HSE/Environmental support.
PT Eksplorasi Nusa Jaya (PT.ENJ) is a geological survey, mapping, and technical support company established in 2008. Holding a Mining Services License (IUJP), PTENJ builds on more than a decade of exploration experience, originating from its earlier operation as PT Cyprus Amax Indonesia (1997–2007).
We are committed to delivering high-quality, cost-effective support for mineral exploration and mining projects across Indonesia. With 60 professional staff and over 120 contractor personnel, PTENJ provides expertise in project management, geological services, drilling support, geotechnical slope remediation, GIS and 3D modelling, custom technical applications, logistics, and HSE/Environmental support.
To provide technically high standard and cost-effective support to mineral exploration and mining projects in Indonesia with due respect to the social, biological and physical environment in which we work
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Technical project planning and management; exploration program design and execution; field mapping, sampling, drilling support; core logging, geotech and metallurgy sampling; and core/sample storage.
Landslide and rockfall mitigation design and installation, slope remediation systems, as well as field construction, materials handling, and camp supervision.
Development of customized technical applications (Acquire and Android-based apps) for data collection and QAQC; GIS and digital mapping; airphoto surveys; and 3D geology, alteration, structure, and mineral modelling.
Comprehensive logistics support for field operations along with occupational health, safety, and environmental services across all ENJ project sites.
We provide reliable, high-standard technical support for mineral exploration and mining projects across Indonesia. Backed by decades of experience and a skilled professional team, PT.ENJ ensures accurate data, safe field operations, and efficient project delivery in even the most challenging terrains.
With more than 25 years of experience in exploration and technical support, backed by our history as PT Cyprus Amax Indonesia, we bring strong technical capability and a deep understanding of Indonesia’s geological landscape.
PT ENJ provides integrated support across project management, geological services, digital solutions, geotechnical remediation, and field logistics, ensuring clients receive complete and efficient solutions.
Our team consists of 60 experienced professionals and over 120 contractor personnel who are dedicated to delivering accurate, timely, and high-quality results in every project.
All PTENJ operations follow strict Occupational Health, Safety, and Environmental standards to ensure responsible work practices and minimal environmental impact.
Jakarta Office
Pondok Indah Office Tower 2, 3rd Floor, Suite 302
Jl. Sultan Iskandar Muda No. TA, RT.4/RW.3, Pondok Pinang
Kebayoran Lama, Jakarta Selatan 12310, Indonesia
Timika Office
Exploration Office, Basecamp Area MP28 – Low Land
Timika 99910, Papua, Indonesia
Phone: (+62) 21 7592 3066
Fax: (+62) 21 7592 3067
Email: contact@enj.co.id
