Mr. Sommart Dhupchinda Mr. Sommart Dhupchinda colluded with Miss Laksana Supsakorn who was the insider which knew or possessed an inside information material which might affect to positive change in

. Sommart Dhupchinda to commit offense in using Mr. Sommart's securities trading account to purchase TIPCO shares in such a way as to take advantage of other persons before TIPCO disclosed the inside