"primary raw materials" is a correct and usable phrase in written English.
You can use it to refer to a group of materials that are used to create new products or forms. For example: "The company relies on primary raw materials to produce its cars."
It is commonly manufactured from propylene and chlorine as primary raw materials.
Trump's steel and aluminum tariffs had already raised the company's input costs, because those metals are among the primary raw materials it purchases.
There is potential for large usages of cleaned waste (50 60 wt%), which helps reducing the supply risk for major refractory primary raw materials as well as landfilling costs.
In addition to the prevention of disposal, recycling practices are now also meant to contribute to sustainable materials management by pursuing (i) a higher degree of material cycle closure, (ii) an improved recovery of strategically relevant materials, and (iii) the avoidance of environmental burdens associated with the extraction and refining of primary raw materials.
The Raw Materials Initiative of the European Union (EU), which aims to "boost overall resource efficiency and promote recycling to reduce the EU's consumption of primary raw materials and decrease the relative import dependence", is currently implemented on the national and industry levels.
An ambitious implementation of the circular economy package would reduce the European demand for primary raw materials and thus would also decrease the material footprint as presented in this paper.
Wood is by far the primary raw material in Ikea's products.
Because sulfuric acid is indispensable to so many industries, its primary raw material is of the greatest importance.
In addition to being the primary raw material for producing metallic aluminum, alumina itself is an important chemical.
The American petrochemical industry, for example, uses natural gas as both its primary raw material, in the form of liquid ethane, and as an energy fuel.
High cereal prices lower their margins, for one thing, and the ability to use food as their primary raw material is constrained by the same factors holding back agricultural production.
