SUSTAINING CAPITAL OF ALUMINA REFINERY PROJECTS - IMPORTANT BUT UNLOVED

摘要

Sustaining capital cost / expenditure, abbreviated as sustaining capex or Susex, is a project cost item which is sometimes forgotten and often disliked. To many it is unknown, and it may be (partly) hidden in other operating cost items. The relation - and the difference - with repair and maintenance costs is not always clear and may inadvertently lead to incomplete cost estimates.This paper explores several facets of sustaining capital and aims at clarifying some of these issues for alumina refinery projects.