Tender Reference Subject Tender Issue Date Tender Closing Date WM19121 Follow-on service contract for the following Community Green Station: Sham Shui Po District Community Green Station Tender Addendum No.1 1 November 2019 12:00 noon on Friday, 13 December 2019 WM 19130 Set up, Operation and Management of the Pilot Scheme on Application of Reverse Vending Machines in Hong Kong Tender Addendum No.1Response to Enquiries on Tender Document - Set 1 (as at 9 December 2019) 15 November 2019 12:00 noon on Friday, 10 January 2020 AS19046 Supply of Air Pollution Sensor Packs to the Environmental Protection Department 22 November 2019 12:00 noon on Friday, 2 January 2020 EP/SP/107/18 Chemical Waste Treatment Centre Second Follow-on Contract 29 November 2019 12:00 noon on Friday, 24 April 2020 WR19126 Provision of Services for Setting up and Operation of Community Recycling Centres at 18 Districts Tender Addendum No.1 29 November 2019 12:00 noon on Friday, 10 January 2020 MS 19040 Provision of Service for Evaluating the Emission Performance of Euro IV and V Double Deck Franchised Buses (FBDD) Retrofitted with Enhanced Selective Catalytic Reduction (SCR) Systems 6 December 2019 12:00 noon on Tuesday, 21 January 2020 User review date: Wednesday, 28 December, 2016