It is lower cost for us to buy our own cranes. The port charged us a tariff for using the cranes.
It's a capital intensive business to get into and ... to actually have the leases, it's very difficult because the port authorities want to give the leases to shipping lines rather than terminal operators. We would have a lot more terminal leases if we could.
The frequency of their schedules -- how many times per week they call at a given port -- varies, which also makes cooperating useful.