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Since the beginning of the 20th century, hard metals (HMs), also known as cemented carbides, have played a crucial role in both industrial and everyday life. They are utilized in a wide range of products, from cars and airplanes to electronic devices and household appliances. HMs also find applications in agriculture, food processing, textiles, construction, and industries such as oil and gas extraction, as well as in biomedical and surgical tools. Since 2011, the European Union has classified the primary components of HMs—tungsten (W) and cobalt (Co)—as Critical Raw Materials (CRMs) due to their significant industrial importance and high supply risks. As a result, it is urgent to maximize the recovery of W and Co from HM scraps. Currently, the industrial recovery rates for these materials stand at approximately 40% for W and 20% for Co. However, there is still substantial progress needed to meet the environmental and economic sustainability targets that are now mandatory. The MESCEL project aims to tackle this challenge by developing an innovative and environmentally friendly electrochemical method for recovering W and Co from HM scrap. The primary objective of this project is to create an electrochemical cell that facilitates the recycling of tungsten carbide-cobalt (WC-Co) scrap, to completely separate W and Co. This process will utilize a neutral pH reactant and require low electric power, making it compatible with solar panel energy generation. The main justification for this approach is the status of W and Co as Critical Raw Materials, combined with the limited number of mines in the EU, new China export control regulations (November 2024) and the high environmental impact associated with ore mining and refining. Recycling scrap with minimal environmental impact presents an ideal solution to ensure that the supply of these materials aligns with the principles of a green economy.