Tin mining is the foundation of the establishment of PT TIMAH Tbk. This business segment started since the colonial period in three areas, i.e. Bangka, Belitung and Singkep regions. It continues until now. At present, the tin mining segment is not only limited to mining activities, but has integrated upstream to downstream businesses.
PT TIMAH Tbk conducts onshore and offshore mining activities. Onshore mining is carried out in Bangka Island and Belitung Island, while offshore mining is carried out at the shores of Bangka Island, Bangka Belitung Islands Province, and at Kundur Islands in the Riau Islands Province.
Onshore mining activities are conducted by stripping the soil while offshore mining utilizes suction vessels and dredgers. At present, the Company owns 127 Mining Business Permits (IUP) for a total of 288,716 hectares of offshore and 184,672 hectares of onshore.
Open Mining : Onshore mining process that uses the gravel pump method. This mining operation is carried out according to Good Mining Practicies.
Borehole Mining (BHM) : This minging method is relatively new and becomes an environmentally friendly solution, hich uses a sub-surface hydrolic mining
Kapal Keruk Bucket Line Dredges : The mining process through dredges in the form of a bowl size from 7 cuft up to 24 cuft and can operate from 15 to 50 meters below sea level with digging capacity more than 3.5 milion cubic meters of material every month.
Kapal Isap Produksi (KIP) : The mining process through excavation which reaches 25 meters below sea level so that can reach the remaining reserves of dredgers.
Bucket Wheel Dredges : The mining process that has the ability to excavate around 70 cubic meters below sea level