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How to Join the Challenge?

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Bring your own container (or borrow one from the lunchbox lending machine) to buy takeaway food or drink on HKU campus

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

  • The receipt date must be within the event period
    (Online event period: from 17 Mar to 17 Apr 2025)

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

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Share the takeaway photo on your social media (Facebook or IG) as a story, and...

  • Add a caption "B.Y.O. for a zero waste campus"

  • Tag three friends

  • Tag our social media (Facebook: HKU Sustainability / IG: @hku_sustainability)

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Follow our social media (Facebook / IG)​

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Click 

to upload the following information

  • A screenshot of the story

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

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DONE ! You get a chance to win 150 GreenU points!

Online Event Period

Date: 17 Mar to 17 Apr
Photos upload deadline: 21 Apr (23:59) 

Pop-up Booth

Date: 19 Mar, 2 Apr & 16 Apr
Time: 11:00am - 2:00pm

Venue: G/F, Composite Building, Main Campus (Outside Starbucks)

GreenU Points Reward

  • By completing the above tasks, you can earn 150 GreenU Points to redeem a reward!
     

  • Each participant can participate in the event up to 2 time

With 300 GreenU Points, you can redeem a limited-time HK$25 coffee voucher!

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