The article presents a comprehensive overview of recent research efforts focused on advancing sustainable plastics production and electrosynthesis technologies. Researchers are exploring circular carbon economy approaches to achieve net-zero greenhouse gas emission plastics. Innovations in sustainable polyesters directly from lignocellulosic sugars and biomass-derived renewable plastics, such as 2,5-furandicarboxylic acid production from fructose, are demonstrating promising results. Electrosynthesis technologies have emerged as a key area of interest for decoupled hydrogen production, biomass valorization, and nitrogen reduction, with notable breakthroughs in tandem CO2 electrolysis and photoelectrochemical cells for combined biomass valorization and hydrogen production. Continuous CO2 electrolysis and electrochemical oxidation of biomass-derived compounds are enabling the scalable production of high-value chemicals like 2,5-furandicarboxylic acid. Key developments include the suppression of non-Faradaic transformations in electrosynthesis and the enhancement of hydroxyl adsorption over catalysts for efficient electro-oxidation. Overall, the advancements discussed in the article signal a positive trend towards more sustainable and environmentally friendly practices in the realm of plastics production and electrosynthesis.