Tas is a transformation strategist with 30+ years in HR, business strategy, and organization design. He has led global change across top firms like Dow, GM, and Siam City Cement—based in Asia and Zurich. Founder of TAS Consulting, he advises CEOs on performance, talent, and cultural shifts.
He holds executive credentials from Harvard, INSEAD, IMD, and Berkeley, with expertise across strategy, HR, and transformation. He also sits on national advisory boards shaping Thailand’s business, education, and innovation landscape.
TAS
Chantree
Founder & MD
Heading 2
Professional
TAS Consulting Partner
Siam City Cement
Lafarge Holcim
Siam City Cement
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Sony
General Motors
Dow Chemical
Ministry of Labor
Founder
Chief HR Officer
Regional HR director (SA & SEA)
Learning & Development Director
Recruitment Director
Employee Relation Manager
Training Manager
Training Specialist
HR Specialist
Government Officer
Education
Advanced Management Program #183 Harvard Business School, USA
Managing of People,
INSEAD, France
Certified Executive Coaching,
University of California, Berkley, USA
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Executive Management Development Program,
IMD, Switzerland
MA, Communication Research
Thammasat University
MPA, Human Resources Management
National Institute of Development Administration
BA, Social Administration Thammasat University