(Hong Kong stock code: 807) (Singapore stock code: BHK) Share Buy Back - Daily Share Buy-Back Notice This overseas regulatory announcement is issued pursuant to Rule 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited. Please refer to the following announcement which has been published by SIIC ENVIRONMENT HOLDINGS LTD. (the Company ) on the website of the Singapore Exchange Securities Trading Limited on 5 April 2021. By Order of the Board SIIC ENVIRONMENT HOLDINGS LTD.