Quolity Control        Ext.315
E-mail : weena@tei.or.th

• Criteria Development Unit            Ext. 315, 329
  E-mail : tanomlap@tei.or.th,   ornuma@tei.or.th,    muanchit@tei.or.th
  
  
• Product Certification Unit            Ext. 306, 316
  E-mail : prakaytham@tei.or.th,   prangsiri@tei.or.th,   rattanaporn@tei.or.th,    natcha@tei.or.th
  
  
• Public Relations Unit            Ext. 303
  E-mail : wipawan@tei.or.th