A rare metal refers to
In Korea, 35 types and 56 metal elements are defined as rare metals given their current demand and future industrial demand that is expected to grow along with technological innovation.
| Types | Classification | Elements | Numbers of Types |
|---|---|---|---|
| Rare Metals | Alkali/alkali earth metals | Li, Mg, Cs, Be, Sr, Ba | 6 |
| Semi-metal elements | Ge, P, As, Sb, Bi, Se, Te, Sn, Si | 9 | |
| Iron group elements | Co, Ni | 2 | |
| Boron group elements | B, Ga, In, Tl, Cd | 5 | |
| High melting point metals | Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re | 11 | |
| Rare earth elements | REE (희토류원소): 17종 | 1 | |
| Platinum group elements | Ru, Rh, Os, Pd, Ir, Pt | 1 | |
| Totals | 35 | ||
Classification criteria vary depending on regions (countries) and historical time periods.


| Features | Petroleum | Rare Metals | |
|---|---|---|---|
| Common Features | Limits | Reserves: one trillion and 237.9 billion barrel Outputs: 29.8 billion barrel ('07) |
Reserves: 1.8 billion and 50 million tons Outputs: 52 million tons ('06) * 10 core elements Reserves: 172 million tons Outputs: 2.7 million |
| Distribution | Top 3 countries' share of reserves/outputs | - Elements over 60%: 20 elements/25 elements - Elements over 90%: 6 elements/8 elements |
|
| Price volatility | 1st ('73) and 2nd ('78) oil shocks Steep increase in oil price in 2007 and 2008 |
Frequent price hikes in different metals Price hikes in most cases from 2002 to 2008 |
|
| Differences | Crisis awareness | High individual awareness of crisis | Relatively low awareness |
| Chain of values | Simple value chain | Complex value chain | |
| Regeneration potential | Impossible with current technology | Diverse technologies of regeneration | |