Clarification of News or Information With reference to the above-mentioned letter which Advanced Info Service Public Company Limited (the "Company") clarifying on the letter of TOT Public Company Limited ("TOT") demanding payment of additional revenue sharing, the Company would like to inform that, on February 4, 2011, the Company sent a letter disputing the demand payment of TOT and refusing to pay the claimed amount by giving material reasons as having informed to the Stock Exchange of Thailand. In addition, the Company, by the said, also requested TOT to cancel or revoke its said demand payment letter within February 9, 2011 including immediately stop any action which may cause further damage to the Company. Otherwise, the Company shall deem a dispute with respect to the Cellular Mobile Phone Service Agreement (the "Agreement") has been occurred and the Company is necessitated to take this dispute to arbitration procedures according to the conditions of the Agreement which has required the arbitration panel to settle the dispute. Since TOT has not cancelled or revoked such letter within the specified period (i.e. February 9, 2011); and, after consulting with our legal consultant, the Company has submitted the dispute to the Arbitration Institute, Office of Justice Courts as the case no. Black 8/2554 between the Company (as the Claimant) and TOT (as the Respondent) today (February 11, 2011). ______________________________________________________________________