Tin

In game: Tin: Mines can be constructed at the nearby settlement

What it is


Kind	Mined: a mine can be built at the settlement that holds it.	Tier	4	Trade value	2	Groups	base minerals, all minerals
When mined	Tin Mine: A valuable source of income

Lets you build: 6 building levels: Toolmakers' Workshop (Industry), Metalwork Artisans (Industry), Metalworking District (Industry), Mines (Industry), Deep Mining Complex (Industry), Tin Exports (Special exports)
Bonuses where it is present: trade income +3 to +4 (The Cothon of Carthage); trade income +1 to +2 (Toolmakers' Workshop (Industry)); trade income +2 to +3 (Metalwork Artisans (Industry)); trade income +3 to +4 (Metalworking District (Industry))
Bonuses only where it is absent: trade income +2 to +3 (The Cothon of Carthage); trade income +1 (Toolmakers' Workshop (Industry)); trade income +1 to +2 (Metalwork Artisans (Industry)); trade income +2 to +3 (Metalworking District (Industry))

12 sites on the map, 23 in total quantity, across a number of regions this generator declines to state: the two ways of deriving it disagree.

Who holds those regions at the campaign start (7 factions)

Faction	Regions	Faction	Regions	Faction	Regions	Faction	Regions
Free Peoples	5	Seleucid Empire	2	Bactria	1	gallaeci	1
osismii	1	Scordisci	1	Volcae	1

Every region that has it (12)

Region	Amount	Held at the campaign start by	Region	Amount	Held at the campaign start by	Region	Amount	Held at the campaign start by
Dumnonia	5	Free Peoples	Artabria	3	Free Peoples	Osismia	3	osismii
Bracarensia	2	gallaeci	Sakasene	2	Free Peoples	Sogdiane	2	Bactria
Ariane	1	Seleucid Empire	Helmantike	1	Free Peoples	Media	1	Seleucid Empire
Pictonia	1	Free Peoples	Skordiskia	1	Scordisci	Volcaea Septentrionalis	1	Volcae