Segmentation by type clarifies how material architecture influences market dynamics. Coated paper—a base paper surface‑treated with biodegradable polymers—captures the largest portion, as it offers a balance of oil‑proofness and printability for high‑volume packaging. Laminated paper, which sandwiches a thin biodegradable film between paper layers, commands a premium for superior barrier performance in medical and specialty food sectors. Composite paper, integrating natural fibers with nanocellulose additives, serves niche industrial‑filter applications where mechanical strength and oil resistance must coexist. Finally, bio‑sintered paper—produced through low‑temperature sintering of cellulose nanofibrils—addresses emerging eco‑label demands but remains a small, high‑cost segment. The relative weight of each type reflects adoption barriers, cost differentials, and regulatory incentives, collectively defining the market’s structural composition.