PT Graha Makmur COalindo
The 1st offshore gold mining in Indonesia with estimated Mineral Reserved 30,050 kilograms of contained gold based on KCMI Code 2017 as at 28th February 2018.
iup-op 570/6/IUP.OP.DPMPTSP/IV/2018
Komoditas emas dmp
PT Graha Makmur Coalindo has been granted an operation production mining permit (IUP-OP Izin Usaha Pertambangan – Operasi Produksi) for a total area of 1.972,00 ha. The permit is valid till 5 April 2028 and extendable until 2048.
Partnering with P3GL ESDM & Sinarmas Land LDA Maritime, we are continously doing mining operation at our concession since we got our “Operasi Produksi” License. We keep trial production from 2019, 2020, 2021, and 2022.




CSR PT graha makmur coalindo
Bayah, banten




STOCKPILE
PT GRAHA MAKMUR COALINDO
Our stockpile located at Krakatau Bandar Samudera, Cilegon.


Published Journal 08 may 2023
“gold placer characteristics in marine sediments of bayah, west java, indonesia”
H. Kurnio , Y. Dahlan and J. Kanily
National Research and Innovation Agency (BRIN), Research Organization Earth Sciences and Maritime, Research Center for Geological Resources, Central Jakarta, Indonesia; National Research and Innovation Agency (BRIN), Research Organization Nano and Advanced Materials, Research Center for Mining Technology, Central Jakarta, Indonesia; PT Graha Makmur Coalindo (GMC), Jakarta, Indonesia
Our Team
Board of Directors

Lie Tek Lok
Chairman & president director

Jaeysen Kanily
Deputy president director

Noor Cahyo
Director of compliance and government relations

Billy thio
Director
Our Team
Staff ahli

Prof. Dr. ir. hananto kurnio, m.sc
head of geologist (BRIN)

Dra. yuhelda dahlan
head of mettalurgy (brin)
Our Team
Board of Commissioners

ritha manik
PRESIDENT Commissioner

tommy octariza
Commissioner
CONTACT US
Pt graha makmur coalindo
Bayah Offshore Gold Project