The topic of this graduation thesis is accounting cost tracking and financial reporting in the chemical industry. Cost is the most important category in accounting that companies encounter daily. Its importance is highlighted through the impact of costs on the success of the company's business performance, and it is very important to monitor costs well in order to make the right business decisions. There are different types of costs, classified according to various criteria. The methods of calculating production costs can be divided into traditional and modern methods, and it is important for the company to choose the most efficient method that will most accurately show the costs by carriers or products. The aim of this paper is to present the specifics of cost monitoring in the chemical industry, and on the example of the company Saponia d.d. show the costs it faces, but also the financial statements it is obliged to compile as a large company. For the purposes of an analysis of costs and an analysis of foundational financial reports, secondary data were used, including Annual financial reports and reports from independent auditors, as well as minutes which are publicly posted on the official website of Saponia d.d. The largest portion of costs in the total cost structure is related to material costs, accounting for 80,80%. The most significant material costs are the costs of raw materials and supplies, as well as the costs of goods sold. The company operated profitably in the observed year 2023.