@Sprigum the questbook is your friend in learning how to "plasicize" A really nice quest to help players set up and run plastic processing.
@Ultimaheart4 you can buy lithium from the shop-page once you've unlocked it. It's not too expensive if you use it mainly for tools.
i heard i can buy it but again i was hoping to get a stockpile im mainly mining for a group of 9 people sharing ore veins. since its hard for everyone to mine ores. we have a cave society going on its fun. thanks for the tip.