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B.Y.O. 

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Event Period: From 16 Mar to 12 Apr 2026

This event run for 4 weeks:

  • Week 1: 16 Mar – 22 Mar 

  • Week 2: 23 Mar – 29 Mar 

  • Week 3: 30 Mar – 5 Apr 

  • Week 4: 6 Apr – 12 Apr 

How to Join ?

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Use your own reusable tableware to enjoy the takeaway food or drinks purchased on campus

Acceptable reusable tablewares:

Lunch Box

Cup / Bottle

Cutlery

Take a photo of your takeaway and the receipt of the takeaway respectively

The receipt date must be within the event period (16 Mar to 12 Apr 2026)

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The food / drink in the takeaway photo must match the name shown on the receipt

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to fill in the details and upload the following photos to the online form

A photo of your B.Y.O. takeaway

Receipt of your B.Y.O. takeaway on HKU campus

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DONE ! Let's watch your GreenU balance grow!

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How to Earn the Rewards?

The more consistent you are, the more GreenU Points you earn!

Reward Type

Quantity of B.Y.O. Records

Points Earned

Daily Points

Submit  1  B.Y.O. records per day

50 GreenU Points per day

Weekly Bonus

Submit  3 or more  B.Y.O. records in a single week

500 extra bonus GreenU Points per week

Over the 4-week campaign, you can earn up to 3,400 GreenU Points ! 

(2,000 weekly bonus  + 1,400 daily points)

B.Y.O. Participation Grand Prize:

The first three participants with the highest number of valid B.Y.O. records will win:

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Bubble Tea Tumbler x1

HKU Bear with Hoodie x1

HKU Bear Key Chain x2

Let's work together for a sustainable campus and planet !

Terms and Conditions: 

  1. This event is for HKU students and staff only.

  2. The takeaway food/drink items must be purchased from restaurants on HKU campuses.

  3. The takeaway photo should clearly show the purchased takeaway food/drink and the reusable tableware (lunchboxes/cups for purchasing takeaways or cutlery for enjoying the takeaways).

  4. The receipt photo should clearly show the name of the purchased takeaway food/drink, the restaurant name, and the purchase date & time.

  5. The food/drink item shown in the takeaway photo must match the food/drink name shown on the receipt.

  6. If the submitted photos (the photo of the takeaway with reusable tableware and the receipt) fulfill all requirements listed in clauses 2-5 of the "Terms and Conditions", the B.Y.O. record will be considered valid and 50 GreenU Points will be credited to the GreenU account of the participant.

  7. Only one eligible B.Y.O. record per person per day will be counted. For multi submissions by the same participant in a single day, only the first valid submission will be counted. 

  8. Each participant can participate in this event repeatedly to earn up to a maximum of 3,400 GreenU Points within the event period. Repeated submission of the same takeaway photo and receipt photo is not acceptable.

  9. B.Y.O. records will be verified after each event week. GreenU Points will be credited to the GreenU accounts of participants after verification.

  10. For the “B.Y.O. Participation Grand Prize”, if B.Y.O. records are tied, the prize will be awarded to the participant who first reached that number of records during the event period based on the submission time of their records.  

  11. Winners of the “B.Y.O. Participation Grand Prize” will be notified by email separately. 

  12. Participants must ensure that they are the owners and hold the copyright of the uploaded photos. Once the photos are uploaded, participants agree and accept that the Sustainability Unit may edit, publish, display, exhibit and/or reproduce the photos in any form, without notifying or paying the participants for any copyright fee or additional consideration.

  13. In case of dispute, the decision of Sustainability Unit shall be final.

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