On this occasion, on behalf of ชื่อหน่วยงานผู้ออกหนังสือ, I would like to express our profound gratitude
to you for having offered us a great opportunity to meet with บุคคลหรือกลุ่มบุคคลที่ได้พบปะติดต่อ, and
thank you most sincerely for the warm welcome and useful advice given to us.