The report begins by defining polyolefins, followed by an overview of production technology pertinent to polyolefins. It then highlights recent business advancements for each polymer grade, along with providing a list of technology licensors and developers. The report will then delve into a comprehensive analysis of four pivotal recycling technologies — mechanical recycling, solvent-based purification, pyrolysis, and hydrothermal treatment — that are either under development or being commercialized for the recycling and valorization of polyolefin waste. The report will discuss the distinct features and implications of each recycling process. A cost of production process economics analysis will be provided for mechanical recycling, solvent-based purification, pyrolysis, and hydrothermal liquefaction. Profiles of key active companies within each respective technology will be profiled to shed light on current industry players and their contributions to polyolefin recycling. A Carbon Intensity analysis will be carried out for mechanical recycling, solvent-based purification, pyrolysis, and hydrothermal treatment across the United States, Western Europe, and China.