Consolidated financial statement of JSW S.A. Capital Group for 2012

2.7. Intangible assets

1. Geological information
   The right to use geological information is capitalized at the amount of expenses incurred to purchase it. The capitalized expenses are written off throughout the estimated useful life of information. The estimated useful life of geological information is from 11 to 65 years.
2. Perpetual usufruct right
   The Group recognizes the perpetual usufruct rights acquired against payment as intangible assets and amortizes them throughout the period for which such right had been granted. Perpetual usufruct rights acquired gratuitously are recorded in off-balance sheet records, at the value specified in the administrative decision about the perpetual usufruct fee.
3. Software
   Purchased software licenses are capitalized at the amount of expenses incurred for the purchase and preparation for use of specific computer software. The capitalized costs are written off throughout the estimated useful life of the software, which is 3 to 8 years.