Electrum

Electrum is a grade 5 premium scavenged metal crafting material.

Source
Electrum can be gathered from an Electrum Cache or Neutronium Speeder Parts node, which requires 300 skill in scavenging. It is most commonly found on Belsavis and Voss.

The following materials can also be found in Electrum Cache or Neutronium Speeder Parts nodes:

They can also be obtained from grade 5 scavenging missions. Additionally, there is a chance to obtain Electrum from reverse engineering the appropriate level and type of gear.

Uses
Electrum is used in several crafting schematics: