Thailand's industrial sentiment in March fell for the first time in three months, with a future index pointing to a further fall on concerns about U.S. tariffs, the Federation of Thai Industries said on Tuesday. The FTI's industrial sentiment index dropped to 91.8 in March from 93.4 in February. Another FTI index that projects sentiment over the next three months also fell for the first times in three months, to 95.7 in March from 97.6 in a previous survey, the FTI said.