The recycling rate for plastic bottles is only 6% in Hong Kong, significantly lower than that of aluminum cans.

Producing new plastic bottles is more energy-intensive than recycling aluminum cans.

Microplastics from plastic bottles do not biodegrade and persist in the environment, leading to widespread ecosystem contamination.

Glass has a recycling rate of only 1% in Hong Kong.

Glass bottles are heavier than aluminum cans, resulting in increased carbon emissions during shipping.

The absence of a local glass manufacturing industry in Hong Kong making it difficult to create a sustainable recycling loop for glass bottles.

Producing glass requires more energy than recycling aluminum cans.

Tetra Paks have a very low recycling rate in Hong Kong.

The city lacks adequate facilities to process Tetra Paks, and their multi-layer structure makes recycling more complicated and costly.

There is currently no strong producer responsibility scheme for Tetra Pak cartons in Hong Kong, unlike the existing schemes for aluminum cans, which encourages better recycling practices.