Raw materials and commodities
Since the most dominant sector on Nia is the heavy industry, the basis of economy is the constant flow of raw materials. These materials can be divided into two groups: minerals and plant materials. The occurrence of materials and plants differ, some ores are easy to find, some take more time reveal.
As you can see there are several commodities that are directly used to create new items. Each commodity needs different required raw materials, check their components list for the requirements.