Iamaoom Sa.

Supply Chain Planning Manager with 10+ years of experience in automotive manufacturing, specializing in supply planning, S&OP coordination, and production order management. Experienced in balancing multi-market demand with production capacity, optimizing inventory levels, and improving supply chain visibility through data-driven analysis. Strong background in cross-functional collaboration with sales, logistics, and production teams to ensure delivery performance and cost efficiency.

Order Planning Manager at UD Trucks Corporation (Thailand) Co., Ltd (2025-11 – Present)

Manage end-to-end order planning process to align global market demand with production capacity, monitor engine allocation and production constraints, and lead cross-functional discussions to resolve supply shortages.

• Manage end-to-end order planning process to align global market demand with production capacity.
• Monitor engine allocation, KD order balancing, and production constraints to maintain stable supply across multiple markets to avoid risk cost impact.
• Lead cross-functional discussions to resolve supply shortages and demand fluctuations.

Production Planning Department Manager at Bangchan General Assembly Co., Ltd (2024-03 – 2025-10)

Owned S&OP and planning cycle, acted as supply chain business partner, led cross-functional execution for new product launch, and improved planning accuracy through data-driven forecasting.

• Owned S&OP and planning cycle, aligning customer demand, supply capability and inventory strategy.
• Acted as supply chain business partner to Commercial, Finance and Operations teams.
• Led cross-functional execution for new product launch, ensuring supply readiness and smooth ramp-up.
• Improved planning accuracy from 60% to 80% through data-driven forecasting.
• Reduced inventory obsolescence / expiry risk by 15% via optimized stock rotation.

Product Planner & Data Analyst at Honda Automobile (Thailand) Co., Ltd (2021-10 – 2024-02)

Delivered margin improvement through data-driven product planning, demand analysis and portfolio optimization. Led new product launches and monitored sales performance.

• Delivered 13% margin improvement through data-driven product planning, demand analysis and portfolio optimization aligned with customer and market insights.
• Led new product launches and monitored sales performance to ensure market success.
• Improved forecast accuracy by aligning product configuration and demand signals with customer behavior and market insights.

Production Planning Expert at Honda Automobile (Thailand) Co., Ltd (2013-11 – 2021-09)

Planned and prioritized operations across multiple product lines, implemented crossline collaboration, minimized overstock and storage cost, and ensured data integrity within SAP systems.

• Planned and prioritized operations across multiple product lines, ensuring consistent service level and on-time delivery.
• Successfully implemented crossline collaboration with production, warehouse, and purchasing teams, optimizing line balancing and resource utilization during peak periods, and reducing unplanned downtime.
• Minimized overstock and storage cost through optimized schedule KD parts delivery and aligned inbound logistics with warehouse capacity.
• Ensured data integrity and system compliance within SAP / planning systems.

Master of Science in Digital Business Transformation (Major in Data Science) – Thammasat University (2023 – 2024)

Bachelor of Chemical Engineering in Chemical Engineering – King Mongkut's University of Technology Nort Bangkok (2008 – 2012)