The odour-control technology for high-pcr hdpe market is projected to grow from USD 980.0 million in 2026 to USD 3,126.2 million by 2036, at a CAGR of 12.3%. Detergent & homecare packaging will dominate with a 45.0% market share, while adsorptive & reactive additives will lead the technology segment with a 55.0% share.