Cost Accounting Department Manager - Thantawan Industry Public Company Limited
Thantawan Industry Public Company Limited · Bangkok and its Vicinity
- Location
- Bangkok and its Vicinity
- Salary
- 65,000 - 85,000 baht/month
- Job Type
- Full Time
- Work Type
- Onsite
- Education
- Bachelor's Degree or Higher
- Posted
- 02/10/2026
Responsibilities
The Cost Accounting Department Manager is responsible for managing the full cost accounting system of the organization. The role focuses on delivering deep analytical insights to support strategic decision-making, improving efficiency across the production line and supply chain, and ensuring product costs are accurate and competitive.
Working Days: Monday – Friday, 8:00 AM – 5:30 PM
Mobility: Able to commute/travel between Chatuchak (Bangkok) and Om Yai, Sam Phran (Nakhon Pathom) for work.
Key Responsibilities:
1. Cost Analysis & Decision Support
- Analyze complex cost structures and profitability trends across all product categories and business units.
- Provide actionable insights and data-driven recommendations to Senior Management, sales, and operations for pricing strategies and business expansion.
- Ensure business leaders have accurate, timely cost data to drive efficiency and profitability improvements.
2. Standard Costing Management
- Review, develop, and maintain the Standard Costing system to ensure it accurately reflects current manufacturing processes.
- Oversee the accuracy of Bill of Materials (BOM), Labor rates, and Overhead allocation.
- Utilize standard costs as a primary benchmark to drive manufacturing efficiency and cost reduction initiatives.
- Manage data uploads to the Business Intelligence (BI) system to ensure information is always current and supports variance analysis.
3. Cost Budgeting & Forecasting
- Direct the annual manufacturing cost budgeting process and quarterly rolling forecasts.
- Prepare cost forecasts related to factory and production activities to support financial planning.
- Analyze external economic factors and raw material trends to forecast future cost impacts on the business.
4. Inventory Control & Management
- Oversee physical count and cycle count processes to ensure inventory accuracy in both quantity and value.
- Develop and review policies for slow-moving, obsolete, and expired inventory (SLOB) and idle assets.
- Coordinate with sales, production, and warehouse teams to execute disposals and write-offs in line with approved policies.
5. Team Capability & Succession Planning
- Build a high-performing accounting team through structured skill development programs.
- Identify and develop high-potential talent to prepare succession-ready candidates for key roles.
Qualifications
Qualifications:
- Bachelor's degree or higher in Accounting
- CPA (Certified Public Accountant) or CMA (Certified Management Accountant) is a strong advantage
- Minimum 10 years of experience in manufacturing cost accounting and financial analysis and at least 5 years in a managerial role
- Direct experience in a manufacturing environment is required
Skills & competencies:
- Strong expertise in Standard Costing system design and variance analysis
- Experience in inventory management — both accounting and operational
- Advanced ERP skills, especially cost-related modules (e.g. SAP CO)
- Strategic thinking with the ability to translate cost data into business decisions
- Strong leadership and team-building abilities
- Process improvement mindset with a focus on efficiency and accuracy
- High level of professional integrity and accountability
Benefits
- Provident Fund
- Staff training and development
- Marriage gift
- Employee's uniform
- Funeral payment support
- Performance/results-based bonus
- Social security
- Health insurance
- Accident Insurance
- Ordination leave
About Thantawan Industry Public Company Limited
Thantawan Industry Public Company Limited is one of the leading plastic bag and straw manufacturers with more than 40 years of experience leading us to the specialist in a production system and quality control with modern technology by following international standards.
Our main products are different types of plastic straws, food packaging bag including a built-in zipper and zipper slider, multi-purpose bags in various industries, freezer bags, shopping bags, handle bags, garbage bags, and zipper lines for packaging.
All goods can be produced either monolayer film or multi-layer film. As aforementioned products can be made by bioplastics, compostable plastics as well as products with modern technology for raw materials, such as packaging to extend the shelf life of vegetables and fruits (Modify Atmosphere Packaging), Anti-microbial packaging, TEMP. Indicator Packaging, etc.
We offer customization for all product sizes and all styles based on customer requests. In addition, our services include consulting services on design, development, design and product quality as well as problem-solving.
Our main products are different types of plastic straws, food packaging bag including a built-in zipper and zipper slider, multi-purpose bags in various industries, freezer bags, shopping bags, handle bags, garbage bags, and zipper lines for packaging.
All goods can be produced either monolayer film or multi-layer film. As aforementioned products can be made by bioplastics, compostable plastics as well as products with modern technology for raw materials, such as packaging to extend the shelf life of vegetables and fruits (Modify Atmosphere Packaging), Anti-microbial packaging, TEMP. Indicator Packaging, etc.
We offer customization for all product sizes and all styles based on customer requests. In addition, our services include consulting services on design, development, design and product quality as well as problem-solving.
32nd Floor, Suntowers Building A, 123 Vibhavadi-Rangsit Road, Chompon, Chatuchak, Bangkok 10900
Human Resources Department
0-2273-8333 ต่อ 3256, 3266
