117. Mineral extraction allowances.

Mineral extraction allowances are available1 if a person carries on a mineral extraction trade and incurs qualifying expenditure2. 'Mineral extraction trade' means a trade3 which consists of or includes the working of a source of mineral deposits but to the extent only that the profits or gains from that trade are, or (if there were any) would be, chargeable to tax4; and 'mineral deposits' includes any natural deposits capable of being lifted or extracted from the earth, and for this purpose geothermal energy is treated as a natural deposit