In 2007, PT Geoservices re-established its Mineral Testing Laboratory facility at Cikarang (GeoAssay Laboratory) with a specific goal to provide up to date methods of analysis for Mineral and Mining Industries. The laboratory maintains certification to ISO17025, ISO9001 and ISO 45001.

The GeoAssay laboratory comprises four laboratory facilities (Mineral, Metallurgical, Geotechnical and Mineralogy) with shared analytical capability. The major focus for the Minerals Division covers the following service provisions:

  • Mine site laboratory – installation and management
  • Exploration –Geochemistry testing and analysis
  • Mineral Processing and extractive metallurgy
  • Geotechnical Testing
  • Advanced Mineralogy using XRD and SEM technology for mining and oil and gas industries
  • XRD Analysis for cement production industries
  • Metal testing using Ark Spark Optical Emission Spectroscopy for copper cathode analysis and other metal products.
  • Environmental - Acid rock drainage / TCLP / LD50
  • Dore Superintending at Gold Refinery
  • Letter of Survey for mine production shipments

GeoAssay Laboratory is certified to the following International Standards

ISO 9001:2015 Quality Management System

ISO 9001:2015 Quality Management System

ISO 45001:2018 Occupational Health and Safety System

ISO 45001:2018 Occupational Health and Safety System





Jakarta Main Laboratory
Jl. Industri Selatan 2 Blok MM1
Jabaka 2, Cikarang –Bekasi
Indonesia 17530
Phone : (6221) 8937833/34
Fax : (6221) 8937835
Email :

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Mineral Laboratory PT Geoservices Waylinggo
Natarang Mining, Desa Gunung Doh,
Kec. Bandar Negri Seminggu,
Kab. Tanggamus, Lampung
Email :

Mineral Laboratory PT Geoservices Wetar
Batutua Tembaga Raya, Desa Lurang,
Kec. Ilwaki, Kab. Maluku Barat Daya,
Email :


Coal Laboratory and Enviromental PT Geoservices Balikpapan
Jl. M. T. Haryono No. 161, RT. 41,
Kel. Damai, Balikpapan Selatan,
Kalimantan Timur
Phone : (0542) 872 152, 872 155
Fax : (0542) 872 151, 872 034
Email :

Mineral Laboratory PT Geoservices Kendari
Jl. Lanud Wolter Mongisidi No. 72, Desa Onewila,
Kec. Ranomeeto, Kendari,
Sulawesi Tenggara
Email :

Mineral Laboratory PT Geoservices Kupang
Jl. Pendidikan 1 No. 6, Kel. Kelapa Lima,
Kec. Kelapa Lima, Kupang,
Nusa Tenggara Timur
Email :

Sample submission sheet


GeoAssay promotional 2019

Metallugical capability

Mineral capability

Ark Spark capability

Cement package