2. Metal Materials
Critical for cannons, armor plating, and reinforced ship structures.

Iron Ore: Basic metal for crafting low-tier cannons and armor.
Copper Ingot: Uncommon metal used in mid-tier ship upgrades.
Steel Ingot: Durable metal for Skull and Bones Items powerful weapons and hull reinforcements.
Mithril Alloy: Rare metal for top-tier armament upgrades.
Best Sources: Mining outcrops, ship plundering, or trading with merchants.

3. Textiles and Fibers
Used for sails, rigging, and crew gear.

Rough Linen: Basic fabric for starter sails.
Silk Cloth: Mid-tier material for faster sail upgrades.
Exquisite Fabric: High-end textile for premium sails with enhanced speed.
Best Sources: Outposts, trading hubs, or Skull and bones items for sale online plundering cargo ships.