International Journal of Research & Review (www.ijrrjournal.com) 203 Vol.6; Issue: 2; February 2019 International Journal of Research and Review www.ijrrjournal.com E-ISSN: 2349-9788; P-ISSN: 2454-2237 Research Paper Application Optimizing the Placement of Safety Stocks Using the Max-Min Method for Printing Companies Muhammad Wali 1 1 Lecturer, Information Management, AMIK Indonesia, Aceh, Indonesia. ABSTRACT Inventory management is an activity carried out by a company that is needed in making decisions so that the need for materials or goods for the needs of company activities both production and sales can be fulfilled optimally with the smallest possible risk. Over-inventory is a waste because it causes too high costs for storage and maintenance during storage in the warehouse. This study tries to build an inventory application by applying the Max-Min method as a basis for development. This research method is divided into three stages, namely the selection of system methods, database development, and implementation of solutions. The results of this study are inventory applications using the Max- Min method which emphasizes the results of controlling the stock to make it easier for company owners to make decisions. Inventory management system built with Hypertext Preprocessor (PHP) and XAMPP as web servers using databases from MySQL, Sublime Text for application coding, and Hypertext Markup Language (HTML) and CSS to create views and JSON (JavaScript Object Notation) to facilitate generating data. The results of this study succeeded in making the application to management to make the right and accurate decision to determine how many items were ordered to suppliers for stock replenishment, this application was able to analyze in advance the methods used so that more objective decisions would be obtained. Keywords: Application, Safety Stocks, Max-Min Method. INTRODUCTION Inventory management is one of the most important and least sexy aspects of doing business. It can be said, inventory management is the business lifeline of an industrial company. [1] Over-inventory is a waste because it causes too high costs for storage and maintenance during storage in the warehouse. [2] traders add value to the products they handle by bringing them closer to the end consumer. In that case, effective control of stock levels is an important measure of operational performance, especially in the context of achieving a high level of customer service. [3] The mechanism that has been widely applied to ERP and Inventory Management Software is the Min-max Method. This method is a simple way to optimize warehouse performance by calculating the min/max quantity for each item stored. Min/max calculation method means stock replenishment will be done when the physical amount in the warehouse has touched the minimum amount of the item and then it will be ordered as much as the maximum amount of the item. One way to control inventory is to determine the minimum stock and maximum stock in a company's warehouse. Min-max stock method is a method of controlling stock security that must exist, minimum inventory