Portugal Exports by Commodity in US Dollars - Niobium, tantalum, vanadium and concentrates.

Commodity	2005	2010	2011
Zirconium ores & concs.		$8,880	$85
Niobium/tantalum/vanadium ores & concs.	$1,490
Total	$1,490	$8,880	$85

Source: United Nations Commodity Trade Statistics Database

See Also:

Portugal Exports by Commodity in US Dollars - Niobium, tantalum, vanadium and concentrates. - Yearly