Sierra Leones GDP (PPP) is projected at $17.8 billion in 2025. Sierra Leones economy depends on mining (diamonds, iron ore) and agriculture, with foreign aid as a key support. The PPP adjustment boosts GDP due to a low cost of living. Poverty, weak infrastructure, and governance challenges hinder growth, while Ebola and conflict recovery linger. Sierra Leone aims to diversify into tourism and agro-processing, but security and corruption risks limit progress. Investments in education and transport are critical for sustainable development.