Other than these, there were also some more essential processes like the Oil pressing facilities. These would be needed for cooking, lighting, soapmaking, and preservation.
Some sections could also have a dedicated use in war. Rather, this one was easy to convert to "war mode", and would churn out the oil needed for their wars at the clap of the hands.
There would also be a plastic factory.
However, rather than just the petrol from Dune Town (which was mostly used for bitumen roads and fuel oils for some machines being developed), they were also using corn starch, sugarcane, and plant oils for the biodegradable variety.
This was not to say they were completely doing away with petrol-based plastics just because they cared about sustainability. They were still using them, though in select applications, and definitely not as a consumable item.
