This study aims to analyze the application of business ethics in stabilizing the Cost of Goods Sold (COGS) at Pancong Lumer MSMEs in Muara Bakti Village, Babelan District, North Bekasi. Pancong Lumer MSME, which was founded in 2023, faces the challenge of HPP instability due to the calculation of production costs that have not been optimized and the lack of transparency in business management. The research method uses a qualitative approach with in-depth interview techniques to MSME owners and employees, as well as observation of the production process and financial records. Data were analyzed descriptively to see the relationship between the application of business ethics and COGS stability. The results showed that the application of business ethics in the form of honesty in measuring, the use of quality materials, and transparency in the production process can help stabilize COGS. Business actors overcome fluctuations in COGS by managing the purchase of raw material stocks without reducing product quality or committing fraud. This MSME is able to produce 30-40 boxes per day with a selling price of Rp.8,000 for original flavors and Rp.10,000 for topping variations. This research proves that good business ethics can be a strategic solution in maintaining COGS stability and building a sustainable business reputation. Research suggestions include improving the financial recording system, implementing a more systematic COGS management method, and consistency in applying the principles of business ethics to increase the profitability of MSMEs.