Investment appraisal is a crucial process for businesses to make informed decisions about investments. This report highlights various tools and techniques used to manage risk in investment appraisal. The maximin technique, sensitivity analysis, and simulation are discussed as effective approaches to minimize risks. Maximin involves assessing the worst-case scenario and selecting the best option from it, while sensitivity analysis involves analyzing the impact of changes on project outcomes. Simulation provides a virtual environment for decision-making. These techniques help global manufacturing companies manage risk effectively and make informed decisions. By using these tools, businesses can reduce uncertainty and increase their chances of success.