** Shares of specialty chemicals co Ecovyst ECVT.N down 5.3% at $7.67 premarket
** Expects 2025 adj. profit per share in the range of 50 cents to 70 cents, below analysts' estimate of 83 cents - data compiled by LSEG
** Q4 sales of $182 mln also missing estimate of 192.95 mln
** Stock fell 21.8% in 2024
(Reporting by Rupali Chaudhary in Bengaluru)
((Rupali.Chaudhary@thomsonreuters.com))