Commodities

Commodities are collections of items that can be purchased from a Commodities Broker or Cargo Vessels in sector space.

Commodities are used in “Relief Effort” missions where the player is asked to deliver supplies needed by an alien world as part of "Federation Outreach and Aid Programs".

Season 5 introduced the Duty Officer system which makes use of Commodities in various Trade and other assignments.

The Fleet Advancement System, introduced in Season 6, and the Reputation System, introduced in Season 7 also provide projects which can require large amounts of Commodities.

Types of Commodities

Basic Commodities

	[Communication Arrays]
	[Industrial Energy Cells]
	[Medical Supplies]
	[Provisions]
	[Shield Generators]

Advanced Commodities

	[Antigens]
	[Astrometric Probes]
	[Industrial Replicators]
	[Water Purification Systems]
	[Weather Control Systems]

Special Commodities

	[Entertainment Provisions]
	[Seismic Stabilizers]
	[Self Sealing Stem Bolts]
	[Terraforming Systems]
	[Warp Coils]

Gamma Quadrant Commodities

	[Bateret Incense]
	[Ferasan Nepeta Leaves]

	[Jevonite]
	[Shapeshifting Lockets]

	[Tulaberries]
	[Unrefined Ketracel]

Other commodities

[Contraband]

[Embassy Provisions]

[Dilithium Mine Provisions]

Availability

Basic and advanced commodities can be found for a range of prices: Special Vendors (usually 75% EC), Cargo Vessels (75% EC), the base price (100% EC), and Replicator (150% EC).
Special commodities are always 100% cost, except from the Replicator (150% EC) and Fleet Embassy (75% EC).
The Quartermaster aboard a Tuffli Class Freighter or Suliban Cell Ship matches the lowest prices available. Access to these can be obtained via various in-game chat channels.
Ferengi characters receive a 20% discount when buying commodities from any vendor based on a ground map due to the Lobes trait. This includes the Quartermaster above, but not the Shuttlebay console in the New Romulus Embassy (this is probably a bug as per this thread on the official forums, but no progress has been made on resolving it).
Gamma Quadrant Commodities can be obtained from Duty Officer missions in Cardassian space, or from Special Requisition Pack - Gamma Quadrant Commodities.

Basic Commodity	Broker (100% EC)			Special Vendor / Tuffli (75% EC)
Medical Supplies	Fhoss	Earth Spacedock	100	Semek	Vulcan	75
Medical Supplies	Gren	First City	100	Semek	Vulcan	75
Provisions	Fhoss	Earth Spacedock	100	Taryss	Andoria	75
Provisions	Gren	First City	100	Taryss	Andoria	75
Shield Generators				Fhoss	Earth Spacedock	75
Shield Generators				Gren	First City	75
Communication Arrays	Fhoss	Earth Spacedock	200	Taryss	Andoria	150
Communication Arrays	Gren	First City	200	Taryss	Andoria	150
Industrial Energy Cells	Fhoss	Earth Spacedock	400	Semek	Vulcan	300
Industrial Energy Cells	Gren	First City	400	Semek	Vulcan	300
Advanced Commodity	Broker (100% EC)			Special Vendor / Tuffli (75% EC)
Antigens	Commodities Broker	Starbase 39	400	Rek	Memory Alpha	300
Antigens	Trenk	Ganalda Station	400	Rek	Memory Alpha	300
Astrometric Probes	Commodities Broker	Starbase 39	400	Rek	Memory Alpha	300
Astrometric Probes	Trenk	Ganalda Station	400	Rek	Memory Alpha	300
Water Purification Systems				Commodities Broker	Starbase 39	300
Water Purification Systems				Trenk	Ganalda Station	300
Weather Control Systems	Commodities Broker	Starbase 39	600	Rek	Memory Alpha	450
Weather Control Systems	Trenk	Ganalda Station	600	Rek	Memory Alpha	450
Industrial Replicators				Commodities Broker	Starbase 39	600
				Trenk	Ganalda Station
				Shuttlebay console	New Romulus Embassy
Special Commodity	Broker / Tuffli (100% EC)			Embassy shuttlebay console (75% EC)
Warp Coils	Konzaar	Deep Space 9	800	Shuttlebay console	New Romulus Embassy	600
	Talut	Deep Space K-7
	Odenk	Drozana Station
Self Sealing Stem Bolts	Konzaar	Deep Space 9	800	Shuttlebay console	New Romulus Embassy	600
Self Sealing Stem Bolts	Odenk	Drozana Station	800	Shuttlebay console	New Romulus Embassy	600
Entertainment Provisions	Konzaar	Deep Space 9	800	Shuttlebay console	New Romulus Embassy	600
	Ariana	Risa
	Odenk	Drozana Station
Seismic Stabilizers	Konzaar	Deep Space 9	1000	Shuttlebay console	New Romulus Embassy	750
	Melangogg	Risa
	Odenk	Drozana Station
Terraforming Systems	Konzaar	Deep Space 9	1200	Shuttlebay console	New Romulus Embassy	900
	Talut	Deep Space K-7
	Odenk	Drozana Station

Notes

Season 5 increased stack size from 99 to 250.
In Season 6, the commodities available from Space Traders at 75% are random. If the first one you meet doesn't offer a discount on the needed commodity, try a different trader.