Rare earth elements (REEs) are now highly sought after by countries worldwide. This is because this mineral resource can be used to produce various types of technology.
According to a report by the Center for Mineral, Coal and Geothermal Resources (PSDMBP) of the Ministry of Energy and Mineral Resources (ESDM), REEs can be used to support the production of technology for lamps, computers, mobile phones, and automotive components and electric vehicle batteries.
"Various types of rechargeable batteries that contain a lot of cadmium (Cd) or lead (Pb) are now being replaced with lanthanum-nickel-hydride rechargeable batteries (one type of REE)," stated PSDMBP in its 2019 report, *Potential of Rare Earth Elements in Indonesia*.
"Similarly, computer batteries, car batteries, and communication equipment use REEs because of their longer lifespan, ease of recharging, and ease of recycling," it continued.
Indonesia itself has the potential for rare earth element wealth spread across various regions.
Quoting data from the Ministry of ESDM, the largest potential for REEs is located in the Bangka Belitung Islands, reaching 207,397 tons, with 186,663 tons in the form of monazite and 20,734 tons of xenotime.
There is also the potential for REEs in North Sumatra amounting to 19,917 tons, then the potential for REEs in the form of laterite in Central Sulawesi of 443 tons, and West Kalimantan of 219 tons.
Director General of Minerals and Coal at the Ministry of ESDM, Ridwan Djamaluddin, mentioned that the utilization of rare earth elements in Indonesia is still in the exploration phase.
"We know its presence (REEs) in 9 locations and the resources of 8 locations have been mapped. Even these 8 locations have only undergone initial exploration, so in general we are still limited," explained Ridwan in a Hearing Meeting (RDP) with Commission VII of the Indonesian House of Representatives (DPR RI), Monday (11/4/2022).
(Also Read: China Has the Largest Rare Earth Element Reserves in the World)