The embedded derivatives and special pricing agreements, particularly for BHP Billiton, were explained in some detail and compared to megaflex terms. Members asked questions of clarity about the aluminium smelters, and why it was not possible to put up smelters in the Eastern Cape. It was noted that Eskom was paying deferred tax from previous years. Eskom was careful not to fall into a situation where it had to borrow to pay interest. Cash from operating activities remained stable from previous years. It hoped to maintain 43 average stock days. Its spending was deliberately below budget, and contracts were signed on a "limited notice to proceed" basis, depending on cash flows. The presenters explained that most of the long-term assets had lives of 40 to 60 years, and its long-term debt was in line with this. Some debt would mature only in 2040 and 2041, while the World Bank loan had a 28-year life span.