UK's Elementis rises after company says MidEast war not material to Q1 performance
** Shares of Elementis ELM.L up 3.3% at 155.4p ** Specialty chemicals co says full-year expectations unchanged; has responded to higher input costs through pricing actions ** Co says Middle East conflict did not have material effect on Q1 performance ** ELM has fallen about 6.4% YTD (Reporting by Judes Joseph in Bengaluru) ((judes.joseph@thomsonreuters.com;))