The ship was carrying about 200 of these oxhide-shaped copper ingots and they represent the major part of the cargo.
When mixed with tin this would have been enough bronze to manufacture a total of 300 bronze helmets, 300 bronze corselets (body armour), 3,000 spearheads and 3,000 bronze swords.
The copper was almost certainly mined on the island of Cyprus and the same type of ingots are shown in great quantities on Egyptian tomb paintings. Some ingots of tin were also on the ship and such a quantity of metal must indicate that this was a valuable cargo, possibly being shipped to a pharaoh or some other king as a royal gift.
Bronze and tin were an essential commodity for any civilization with pretensions to power, and the Hittites' need to secure their access to such supplies of metal is thought to have been one reason for their military aggression.
