How to get Rubico Prime Stock in Warframe?

Rubico Prime Stock is an item dropped from Void relics.
You can find the list of relics below, and click on the links to see how to get them.

Relics dropping Rubico Prime Stock

• Lith B5 (Uncommon) - Vaulted
• Lith C8 (Uncommon) - Vaulted
• Lith M3 (Uncommon) - Vaulted
• Meso E2 (Uncommon) - Vaulted
• Neo P1 (Uncommon) - Vaulted
• Axi A9 (Common) - Vaulted
• Axi D2 (Uncommon) - Vaulted
• Axi L5 (Common) - Vaulted
• Axi P2 (Uncommon) - Vaulted