การประเมินการควบคุมภายในของบริษัท ช้าง สยาม กัมปนี จำกัด

Abstract

The aim of this independent study, entitled “Internal Control Evaluation of Chang Siam Kumpany Company Limited”, was to assess the internal control and to suggest an internal control plan for the company under investigation. The data collection method consisted of administering questionnaires and conducting interviews with managers, supervisors and operators. The evaluation focused on the adherence to the five principles of COSO’s internal control framework, namely control environment, risk assessment, control activities, information and communication, and monitoring, as well as the five international control systems, namely procurement system, sale system, receiving system, payment system, and salary system.

The results showed that the five principles of COSO’s internal control framework, namely control environment, risk assessment, control activities, information and communication, and monitoring, were partially implemented in Chang Siam Kumpany Company Limited’s internal control. The compliance level of the company’s internal control varied according to each COSO principle. However, some activities required improvement to enhance operational efficiency and reduce errors. These activities were as follows. For the control environment principle, the areas for improvement were: the managers should foster a positive attitude towards the internal control among their staff, support the organization of training sessions on internal controls, explain the benefits of operating under the internal control, create a written manual of operation under the internal control to inform the staff about the internal control guidelines, and persuade the staff to understand the necessity and importance of the organizational internal control. By doing so, the staff would understand and follow the guidelines of internal control, and the organizational activities would achieve the expected objectives, leading to timely problem-solving. For the control activities principle, the areas for improvement were: in the sale system, the company should add a process of checking and order approval from customers by relevant staff to reduce errors in product or service selling. Moreover, the findings also suggested that there should be regular price checking by the sale manager to ensure that the prices were up-to-date. In the salary system, which was found to have incomplete and inaccurate staff profiles, the company should establish a Human Resources department to be in charge of recording the staff profiles, employment contracts, employment rates, absence records (day-off, sick leave, business leave), which would be used for preparing the salaries and reducing errors in the salary system.