Zuidergilde

Zuidergilde (Officially known as Zuidergilde National Bank and Company) is the national bank, company, and wealth reserve of the country of Zuiderland. They have managed to become one of the largest and richest companies in the Mappercraft economy despite being in a Vuvuzela C*mmunist hellhole. They sell a wide range of goods and services, including things like gunpowder, shulker boxes, elytra, enchanted books, and enchanted armor, tools, and weapons.

The company operates similar to a worker co-operative, every worker (in this case every member of Zuiderland) has a share of the company. There is no official CEO of Zuidergilde, but agnius06 manages Zuidergilde's international and advertising department, getting stores to sell their products in and The_Ohioan manages the company's resources.

Gunpowder

 * 10 diamonds per stack (Non-allies)
 * 7 diamonds per stack (Allies)
 * 22 diamond blocks per shulker box (Non-allies)
 * 16 diamond blocks per shulker box (Allies)

Elytra

 * 32-40 diamonds depending on enchantments and repair cost (Message The_Ohioan for offer)

Trident

 * 64 diamonds for unenchanted trident
 * 74 diamonds for fully enchanted Riptide/Loyalty trident

Slime Blocks

 * 10 diamonds per block

Enchanted Books

 * Mending Books: 3 diamonds per book
 * Any other type of enchanted book is 5+ diamonds (Unbreaking, Fortune III, et cetera)

Tools, Weapons, and Armor
No fixed prices for anything yet

Mercenaries
DM agnius06 for anything about the mercenary program