We aim to source raw materials and packaging in a sustainable manner, considering the resource and biodiversity impacts on the planet as well as human rights and fair labor conditions throughout our extended supply chain. Our Responsibility Standards for Suppliers outline our expectations for any supplier working with us. We supplement these guidelines with additional material-specific sourcing criteria for key commodities or materials of concern to ensure we are not complicit in practices that are not consistent with our standards or applicable laws. We maintain partnerships with organizations that help us define appropriate standards and controls in responsible sourcing.
Forest partnership: We have completed the first full year of our multi-year partnership with the World Wildlife Fund (WWF), whose mission is to conserve nature and reduce the most pressing threats to the diversity of life on Earth. In the first year of our partnership with WWF, we laid the foundation for advancing innovations in sustainable palm oil production done at a scale that supports forests, wildlife, and long-term community wellbeing.
Palm-Based Derivatives Sourcing: We continue to partner with Earthworm Foundation to implement our sourcing criteria with our top suppliers by volume, building transparency and monitoring non-conformance. We published a progress update in October 2019 and also published an updated list of direct suppliers and potential mills in our supply chain. In 2019, we saw increased transparency (back to mill) in our supply chain over the prior year.
Wood-fiber products sourcing: In 2019, we continued our partnership with Rainforest Alliance to implement our Wood- Fiber Products Sourcing Criteria and improve our supplier assessment. We published a progress update in October 2019. This year we also brought on a new technology partner, SupplyShift, to help us improve the accuracy and efficiency in our wood-fiber products sourcing. We introduced the SupplyShift platform to suppliers in late 2019 and expect this tool will support noticeable improvements in our annual supply chain assessment.
Conflict Minerals: In line with regulatory requirements, we remain committed to taking steps to determine the use, country of origin and source of conflict minerals (tin, tungsten, tantalum and gold [3TG]) in our global product portfolio. Our annual Conflict Minerals Report provides further details. We are a member of the Responsible Minerals Initiative, a cross-industry organization that helps companies source conflict-free minerals.