Archived Event
29 March 2023 - 29 March 2025
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Source: Greeners Action
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Source: Environmental Protection Department
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來源: 香港可持續校園聯盟
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來源：環境保護署
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04 May 2020 - 31 July 2020
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10 January 2020 - 15 February 2020
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06 November 2019 - 20 December 2019
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來源：香港太古可口可樂
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01 March 2019 - 18 April 2019
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14 November 2018 - 18 December 2018
