Throw it in the bottom drawer with:
CSD - TIN
GXY - Lithium
DTM - Moly
TRO - Zinc
CYU, - Copper
AXE - Graphite
ELM,PWN - Potash
MNB - Phosphate
MLM - Scandium
WPG - Iron Ore
RNU - Uranium +
So long as entry is cheap and you have time to wait, all of these have pretty massive up-side and are strategic. So don't need a lot of exposure.