The document presents best practices and lessons learned for ensuring project success in major capital expenditure (capex) projects, emphasizing the need for proactive risk management and adequate quality assurance throughout the project lifecycle. It discusses common challenges faced, the importance of effective collaboration between owners and engineering, procurement, and construction (EPC) firms, and highlights the significant costs associated with project failures. Recommendations for improving project outcomes include investing in project success assurance, implementing scalable solutions, and maintaining a focus on continuous improvement.