How to Earn Carbon Wallet Points?

Earn CW Points on Campus

Take photo of the recyclable(s) in front of the recycling bins, earn at least 5 CW Points for each item

Scan the QR code displayed on the machine after borrowing, and earn 16 CW Points for each lunchbox

Note: PolyU members are welcome to use Carbon Wallet to record their off-campus green actions to earn points.

Locations of Lunchbox Lending Machines for Each University 

City U: Near the main entrance of City Express

HKBU: 5/F, AAB (Outside main canteen)

LU: Near the cashier of the canteen

CUHK: Near the main entrance of Benjamin Franklin Centre student canteen

EdUHK: Near the cashier of the main canteen

HKUST: Outside LG1 Canteen and Outside Passion 

HKU: 4/F Podium, Haking Wong Building (Outside student canteen)

Earn CW Points Automatically

Link your Octopus to record your MTR travelling distance automatically and earn at most 264 CW Points monthly


Sync your step activity data to earn up to 100 CW Points weekly

Other Ways to Earn CW Points

Scan your receipt after purchasing designated products and earn 50 CW Points per receipt

Scan your receipt after enjoying a vegetarian meal and earn 100 CW Points per receipt

Scan your receipt after purchasing plant milk drinks and earn 50 CW Points per receipt

Stay tuned for the latest updates in the community for more chances to earn additional CW Points!