Question about "Mining Subsidies"

[AlknicTeos]

The tooltip says it boosts production of miners and "strategic ressource gatherer" output by 50%. While this is true for miners it doesnt seem to work for "strategic ressource production buildings ( like chemial/crystal plants, refineries)" . What is meant with strategic ressource gatherer ? And that is all what I find about sr_miners

Spoiler

planet_sr_miners = { #added because we don't want miners_minerals_produces_add to apply to these
    parent = planet_miners
    generate_add_modifiers = {
        upkeep
    }
}

so ?
Can someone enlighten me about sr_miners?

 

[Ryika]

You know the buildings that require a local resource like rare crystals to be available as a special deposit on the planet?
Jobs provided by those buildings benefit from Mining Subsidies. Jobs that produce these resources artificially without requiring a local resource deposit do not.

 

[AlknicTeos]

ah ok, sad but seems to be true
Many Thanks btw!

 

[Incompetent]

Mining World designation likewise boosts strategic resource miners, but not refiners. So if you have a colony with several natural deposits of gas/crystal/motes, you may want to designate it a Mining World even if it isn't so rich in minerals.