The transition to a circular economy for plastics requires comprehensive policy frameworks that address all stages of the plastic value chain, from design and production to use and end-of-life management . The circular economy for plastics enables better use and management of materials to ensure valuable resources are kept longer in circulation, while new markets create demand for recovered materials . The global circular economy for plastics is projected to generate USD 200 billion in annual economic value by 2030, with recycled resins playing a central role in this systemic shift . This transition is supported by growing infrastructure investments, with over 300 new plastic recycling facilities planned worldwide through 2025 .

The global recycled resin market, valued at USD 66.39 billion in 2024, is projected to grow from USD 70.12 billion in 2025 to USD 96.95 billion by 2032, at a CAGR of 5.8% . The recycled plastic packaging market is estimated to grow at an 11% CAGR to reach USD 89.7 billion by 2034, as regulatory frameworks tighten across major economies, pushing companies to incorporate recycled materials into their packaging portfolios . Governments are enforcing recycling targets and restricting non-recyclable plastics, prompting manufacturers to shift toward circular production models, while extended producer responsibility programs raise accountability and accelerate investment in recycling infrastructure, upgraded sorting systems, and improved collection networks .

Sustainable polymer materials are being advanced through innovations in both bio-based and recycled materials. The concept of "low-carbon polymers" has emerged, focusing on partial substitution of carbon elements in polymers with oxygen or other heteroatoms and the use of biomass carbon to construct sustainable materials . Natural cellulose provides a reference with an oxygen-to-carbon molar ratio of 5/6 and a carbon weight percentage of approximately 49.4% . Representative examples of commercially available biodegradable polymers include polylactide (PLA) and propylene oxide-CO₂ copolymer (PPC), with PLA development dating back to the 1930s and industrialization accelerating through breakthroughs in catalyst technology . PPC, first discovered in 1969 through alternating copolymerization of CO₂ and propylene oxide, now incorporates up to 42 wt% CO₂, offering a pathway to carbon-negative materials .

In India, the circular economy for plastics is being shaped by a complex policy landscape centered around waste management, recycling, citizen awareness, behavior change, and extended producer responsibility . The Plastic Waste Management Rules (2016) put forth guidelines for safe use, handling, and disposal of plastic materials and packaging, with the 2021 amendment permitting the use of recycled plastic in food packaging . In 2022, EPR guidelines standardized obligations for producers, importers, and brand owners throughout collection, recycling, reuse, and compliance reporting. Since 2022, India has progressively banned single-use plastic products, and the 2025 Plastic Waste Management Rules amendments mandated QR or barcode labeling on plastic packaging for improving traceability, compliance, and community engagement .

Circular economy plastics face several challenges that require integrated solutions. India's plastics value chain comprises mostly small to medium-sized businesses, with around 30,000 plastics processing businesses employing 4 million people . The waste and recycling sector is highly fragmented and often informal, with reliance on manual sorting and mechanical recycling resulting in human health and safety concerns . Despite single-use plastic bans now in effect in most Indian states and territories, there has been ineffective implementation and poor uptake, attributed to limited availability of alternatives and commercial barriers for scaling bio-based materials . Inadequate household waste segregation also results in highly contaminated feedstocks for recycling, while the lack of separate collection pathways for bio-based materials compounds the challenge . The research identified extended producer responsibility legislation as a strength, yet there are many opportunities to improve its implementation with relevant standards, labeling, and expansion in scope .