The Short Version
No credible source supports the existence of a system-wide "sorting accuracy" metric of approximately 45% for Hong Kong's recycling system. Official Hong Kong Environmental Protection Department data reports an MSW recovery rate of 34% in 2024 — a fundamentally different measure from sorting accuracy. Where sorting accuracy is discussed in the evidence, it refers to specific technologies achieving 96%, not a system-wide figure. The claimed 45% figure appears to be fabricated or conflated with unrelated metrics.