You will need this lease to retain your rights to your mineral claim after it has lapsed and before you have been issued a mining lease.
This lease grants security of tenure to conduct further exploratory operations. It is only issued to the holder of a Mineral Claim and may be granted if the mineral is not economically viable or if a radioactive mineral is being sought. This licence is not contained in the business activity module because it is issued to holders of a mineral claim who fall into the above category.