| 1. The Twelve Principles of Circular Hydrometallurgy | Koen Binnemans, Peter Tom Jones |
| 2. Carbon Footprint and Energy Transformation Analysis of Steel Produced via a Direct Reduction Plant with an Integrated Electric Melting Unit | Julian Suer, Frank Ahrenhold, Marzia Traverso |
| 3. Comprehensive Review on Metallurgical Upgradation Processes of Nickel Sulfide Ores | Kun Zhao, Feng Gao, Qunying Yang |
| 4. Methanesulfonic Acid (MSA) in Hydrometallurgy | Koen Binnemans, Peter Tom Jones |
| 5. Thiourea Leaching: An Update on a Sustainable Approach for Gold Recovery from E-waste | Daniel A. Ray et al. |
| 6. Conversion of Lithium Chloride into Lithium Hydroxide by Solvent Extraction | Viet Tu Nguyen et al. |
| 7. Ionic Liquids and Deep-Eutectic Solvents in Extractive Metallurgy: Mismatch Between Academic Research and Industrial Applicability | Koen Binnemans, Peter Tom Jones |
| 8. High-Temperature Behavior of Spent Li-Ion Battery Black Mass in Inert Atmosphere | Safoura Babanejad et al. |
| 9. Metals Production and Metal Oxides Reduction Using Hydrogen: A Review | A. Rukini, M. A. Rhamdhani, G. A. Brooks, A. Bulck |
| 10. A Feasibility Study to Minimize the Carbon Footprint of Cast Iron Production While Maintaining the Technical Requirements | Ali Abdelshafy et al. |
| 11. One-Step Solvometallurgical Process for Purification of Lithium Chloride to Battery Grade | Dženita Avdibegović, Viet Tu Nguyen, Koen Binnemans |
| 12. How Cerium and Lanthanum as Coproducts Promote Stable Rare Earth Production and New Alloys | Zachary C. Sims et al. |
| 13. Comparison of One-Part and Two-Part Alkali-Activated Metakaolin and Blast Furnace Slag | Isabel Pol Segura et al. |
| 14. The Development Scenarios and Environmental Impacts of China's Aluminum Industry: Implications of Import and Export Transition | Shupeng Li, Tingan Zhang |
| 15. Alternative Method for Treating Electric Arc Furnace Dust: Simulation and Life Cycle Assessment | Marja Rinne, Petteri Halli, Jari Aromaa, Mari Lundström |
| 16. Wettable TiB2 Cathode for Aluminum Electrolysis: A Review | Sai Krishna Padamata et al. |
| 17. Material Flows and Waste Management of Titanium Products in China from 2005 to 2020 | Wenhao Wang |
| 18. The Separation Behavior of Impurities in the Purification of High-Purity Magnesium via Vacuum Distillation | Neng Xiong et al. |
| 19. Sustainable and Comprehensive Utilization of Copper Slag: A Review and Critical Analysis | Eric Klaffenbach, Victor Montenegro, Muxing Guo, Bart Blanpain |
| 20. A Decarbonization Approach for FeCr Production | Hasan Güney et al. |
| 21. Hydrometallurgical Routes to Close the Loop of Electric Vehicle (EV) Lithium-Ion Batteries (LIBs) Value Chain: A Review | Usman Saleem, Bhaskar Joshi, Sulalit Bandyopadhyay |
| 22. Development of Cold-Bonded Briquettes Using By-Product-Based Ettringite Binder from Ladle Slag | Ahmed Abdelrahim et al. |
| 23. Observations on the Leaching of Milled Black Mass with Additives | Antti Porvali, Tuomo Mäkelä, John Bachér |
| 24. Thermal De-coating Pre-treatment for Loose or Compacted Aluminum Scrap and Consequences for Salt-Flux Recycling | Alicia Vallejo-Olivares, Solveig Høgåsen, Anne Kvithyld, Gabriella Tranell |
| 25. Lead Electrorefining Process from Exhausted Lead Acid Batteries by Using Acidic and Alkaline Electrolytes | A. Mondal, E. Ciro, C. Lupi, D. Pilone |
