Comparative Method of Moora and Copras Based on Weighting of the Best Worst Method in Supplier Selection at ABC Mining Companies in Indonesia

Supplier selection is important for the company. The risks caused by suppliers will have a significant impact on the company's performance. To mitigate this, each company has different characteristics regarding suppliers. There have been many previous studies regarding criteria in supplier selection, in this study using criteria that has been previously studied and adjusted to the direction of the company's business objectives. These criteria will be weighted by Best Worst Method. As a sample in this study, used data and information from ABC companies engaged in mining in Indonesia. Supplier assessment will be done by comparing MOORA and COPRAS approaches. The COPRAS method is chosen because the calculation step is simpler and the average final ranking value difference is quite small. This study also produced key vendor selection criteria for ABC companies.