Axalta uses a significant amount of raw materials in the production of our coatings, and we are committed to responsibly managing these materials.
Many of the raw materials we use are derived from the refining processes of crude oil and natural gas, in addition to other extracted mineral resources and renewable agricultural products used in many resins and pigments. We convert these raw materials and transform them into brilliant, attractive and protective coatings used across the globe. For more information on how we procure raw materials and work to promote human rights in our supply chain, see the Supply Chain and Logistics section of this report.
At Axalta, lean manufacturing principles, developed over decades of experience, have driven our ability to manage costs and improve product quality. We continue to implement these principles into our manufacturing operations, focusing on increasing our productivity and improving the use of resources. Our product stewardship program ensures that we manage any potential hazards with the materials we use responsibly and safely in our operations and communicate the known risks to others across our value chain.
The total materials purchased in 2017 were equivalent to 431,166 metric tons. This is an 18 percent increase from our materials purchased in 2015 resulting primarily from our acquisitions as we continue to grow our business.
Not only do we responsibly manage the materials we use in the creation of our products, we also strive to identify ways to use sustainable packaging. We have reengineered the packaging for our powder coatings with a more environmentally responsible alternative to our iconic oyster white boxes. Our powder coatings will be packaged in a kraft process (for converting wood into wood pulp) manufactured brown carton, made with a high proportion of recycled fiber.