** Shares of infrastructure products maker Hill & Smith HILS.L up 11.3% at 2,190p - highest since Aug 2024
** HILS posts HY adj operating profit up 11% on constant currency basis, driven by upbeat performance in U.S. Engineered Solutions & Galvanizing Services
** Announces 100 mln-pound ($135.36 mln) share buyback
** Keeps full year expectations unchanged
** "The outlook statements are good and should squash lingering concerns of a US slowdown," Jefferies says in a note
** As of last close, stock up ~5% YTD vs 5.92% rise in FTSE mid-cap index .FTMC
($1 = 0.7388 pounds)
(Reporting by Ankita Bora in Bengaluru)
((Ankita.Bora@thomsonreuters.com))