The main objective of this study is to determine the profile and the cost accounting system adapted by plastic manufacturing firms in Metro Manila and suburbs. The descriptive method of research is used on twenty-six manufacturing firms. Secondary data in the form of financial statements are similarly used to know the profile as well as the financial and operating highlights of said firms. Significant findings reveal the following: 1. Plastic manufacturing firms are helping the government by providing employment to a great number of employees. 2. Plastic manufacturing firms had enormous assets ranging from P10 million and below to about P1, 300 million. 3. One could operate a plastic manufacturing company with less than P100, 000,000. 4. Revenue ranges from P100 M to as high as P1, 299 million. 5. Only 3 firms show a remarkable high profitability on sales at 10.16%, 18.56%, and 21.55% providing income to the business. 6. Company resources are very much utilized. 7. Majority of the firms is using electronic data processing. 8. They use actual cost measurement and all elements of manufacturing costs are allocated to production using job order costing. 9. Normal losses are caused by defects and waste; abnormal losses are caused by inefficient equipment and poor workmanship.
