It's Always recommended that you install the Recommended Version of PremiumCore for the Other Premium Mods you use. If you are using PremiumCore by Itself download the latest stable version.
Added Tin Ingot
Added PremiumCore Custom Creative Tab
Added Metal Blocks that work with beacons!
Added Generating Ore blocks for Steel, Copper, Lead, and Tin.
Bronze must now be crafted with a Copper and Tin Ingot.
Added all Ores, ingots, and metal blocks to the OreDictionary