U.S. stock index futures were largely unchanged on Tuesday after a tech-driven rally drove Wall Street to record closing highs for the third straight session, while investors awaited Federal Reserve Chair Jerome Powell's remarks on the economy. .N

** Boeing Co <BA.N>:BUZZ - Rises on Uzbekistan deal, potential China order nL3N3VA0FU

** Americold Realty Trust Inc <COLD.N>:BUZZ - Shares dip after J.P.Morgan downgrades rating to 'underweight' nL6N3VA0A4

** Newmont Corp <NEM.N>:

** Harmony Gold Mining Co Ltd <HMY.N>:

** Sibanye Stillwater Ltd <SBSW.N>:

** Agnico Eagle Mines Ltd <AEM.N>:

BUZZ - Gold miners gain as bullion hits record high on rate cut hopes ahead of Powell's speech nL3N3VA0KY

** ACM Research Inc <ACMR.O>:BUZZ - Surges ahead of S&P SmallCap inclusion nL6N3VA0BC

** Hecla Mining Co <HL.N>:

** Coeur Mining Inc <CDE.N>:

** Endeavour Silver Corp <EXK.N>:

** Silvercorp Metals Inc <SVM.N>:

BUZZ - Silver miners gain as prices of white metal edge up on bets of further Fed rate cuts nL3N3VA0L7

** Kenvue Inc <KVUE.N>:BUZZ - Bounces as Trump's Tylenol-autism link not backed by new scientific evidence nL3N3VA0L2

** Firefly Aerospace Inc <FLY.O>:BUZZ - Falls after Q2 revenue miss nL6N3VA0CX

(Compiled by Rajarshi Roy and Dharna Bafna)

((Rajarshi.Roy@thomsonreuters.com))