SteelOrbis has learned that US plate spot market prices have firmed in the past seven days, and are now trending at approximately $82-$83 cwt. ($1,807-$1,830/mt or $1,640-$1,660/nt), FOB mill, compared to an average price of $75 cwt. ($1,653/mt or $1,500/nt), FOB mill, on July 1.