What term refers to the substances used in the first stage of production on which producers are dependent?

The term that refers to the substances used in the first stage of production on which producers are dependent is "raw materials."

The term that refers to the substances used in the first stage of production on which producers are dependent is "raw materials." Raw materials are the basic materials or substances that are used in the production process to create finished products. They can be either natural resources or processed materials that are transformed into something else during the manufacturing process. Examples of raw materials include minerals, metals, wood, agricultural products, chemicals, and textiles.