This document discusses finance leases as a source of project finance. It defines leasing as a legal agreement where the lessor owns a capital asset and allows the lessee to use it by paying rentals. Leasing provides advantages like preserving lines of credit, improving cash management through lower rental payments compared to loan repayments, and flexibility to upgrade equipment. The main types of leases are finance leases and operating leases, with finance leases transferring substantially all the risks and rewards of asset ownership to the lessee.