Where development negatively affects the level of tangible ecosystem services such as water purification or the level of forest products for local stakeholders, offset schemes sometimes provide compensation for these losses. The Potgietersrust Platinums Limited mine in South Africa, for example, provides local women with access to the offset for the sustainable collection of firewood (Anglo Platinum, 2009). The IFC Performance Standards also contain provisions for identifying priority ecosystem services through a stakeholder engagement process and requirements for compensation under certain conditions (IFC, 2012). Other programmes allow developers some flexibility when selecting an indicator.