[SMM Zinc Morning Meeting Minutes: US GDP Data Revised Upwards, LME Zinc Hovers at Highs]: Overnight, the LME zinc contract opened at $2,927/mt. At the beginning of the session, it fluctuated around the daily average line, hitting a low of $2,913.5/mt, then rose continuously. Entering the night session, LME zinc reached a high of $2,960/mt, before pulling back from highs and eventually closing flat at $2,922.5/mt...