strategic Resources:

Hopium, gas, smp: 18°C
Once a rare resource, now a standard commodity like sugar or spices like curry/pepper
Aphrodisiac in high concentrations, it soothes the brain and has a refreshing and emotionally stabilizing effect at reasonable exposition.
It is used recreationally to refresh and motivate.

Copium, Gas smp: -2°C
Chemically related to Hopium, this strong hallucinogen is much more potent by several orders of magnitude.
It's strong effect can be used by some rulers to numb the senses to keep citizens happy and calm

originating from the deep energy lines spanning the globe, both can be either extracted as a gas at natural hotsprings/wells ,drilled for, or in colder regions, bottled up as a viscous liquid