Published Aug 25, 2023 10:01AM ET 3/3 © Reuters. FILE PHOTO: U.S. Commerce Secretary Gina Raimondo testifies during a Senate Appropriations Committee hearing on Capitol Hill in Washington, U.S., May 16, 2023. REUTERS/Elizabeth Frantz/File Photo 2/3 BA -0.41% Add to/Remove from Watchlist MU +0.35% Add to/Remove from Watchlist By David Shepardson and Trevor Hunnicutt WASHINGTON (Reuters) - U.S. Commerce Secretary Gina Raimondo visits China for four days starting Sunday, aiming to boost business ties between the world's largest two economies even as the Biden administration has taken a series of steps to prevent exports of sensitive American technology. Raimondo has...