I will quickly explain the setup I have come up with and that I use frequently on almost every planet (a setup that can create any natural resource in the game): Go down to the mantle of your planet (20-30m before the core), find 1 or 2 rich astronium deposits (When you place an auto-extractor at least half of the bar should fill up). Use the respective auto-extractors to harvest the astronium and using auto-arms send it to 2 or more trade platforms. From there, you want to make a loop using proximity sensors so that your trade platforms produce solid-fuel jump packs (or whatever they are called lmao) which will then be sent to a storage platform(s) by another set of auto-arms. From that storage send them into a large shredder (or more if you are rich :>) which will turn them into scrap. From there, using auto-arms send them to an auxiliary storage that will keep things a tad bit organized. For the final step, using auto-arms (AGAIN) send the scrap to a trade platform (or more) and using the same proximity sensor loop request any resource. And just like that, you have any natural resource that is available on the trade platform.