If you're manually mining raw materials with your pink energy there is definitely something wrong with your company strategy.
You're wasting energy on stuff your Auto Engines already do for free 24/7.
Just follow this:
Buy raw limestone off the market for 0.08 gold (or whatever the current market rate is).
Dump ALL your pink energy into making Concrete or Steel.
Sell that concrete for 1.60+ gold.
You literally buy cheap inputs turn them into high-value goods, and keep the profit. You can earn plenty of money this way it might be a bit slow if your level is low but it will definitely help grow your companies faster.
Because INVESTMENT IS THE KEY TO EARNING IF YOU JUST STARTED PLAYING!
Drop a small tip below if this saved your account! Reinvesting every coin straight into my next factory slot 🫡