Bangkok--13 Mar--TRIS Rating TRIS Rating Co., Ltd. announces today that the issue rating of Unilever Thai Trading Ltd.’s (UTT) Bt4,000 million guaranteed debentures (UTT083A) has been cancelled. TRIS Rating said that the cancellation of UTT’s debentures is due to its maturity. Therefore, the previous “AAA” rating with “stable” outlook assigned to UTT’s debentures will no longer be monitored.