Analisis Persediaan Bahan Pendukung pada Produksi Air Minum dalam Kemasan Wainta di Toraja Utara

This study aims to analyze the inventory conditions of supporting materials for Wainta Bottled Drinking
Water in North Toraja, determine the optimal economic order quantity (EOQ), ordering frequency, and total
inventory costs, and evaluate the effectiveness of the EOQ method in reducing inventory costs. Using a
qualitative method with a field approach, data was obtained through observation, interviews with
production staff, and related documents. Informants were selected purposively, and quantitative descriptive
analysis was applied to obtain an accurate picture of inventory conditions. The results of this study indicate
that the management of supporting material inventory at CV. Vidi Jaya Pedamaran is not yet efficient, with
purchases exceeding real needs and high annual inventory costs. The application of the Economic Order
Quantity (EOQ) method has succeeded in increasing efficiency with an optimal order quantity of 8,772 units
per order, reducing the ordering frequency to 24 times per year, and reducing total inventory costs from IDR
3,346,488,000 to IDR 1,747,556,688. This emphasizes the importance of more planned inventory
management to maintain cost efficiency and smooth production.

Keywords: Inventory, Raw Materials, Bottled Drinking Water