Financial Committee (FC) of the Legislative Council (LegCo) approved the upgrading of part of the Public Works Programme Item 357WF, entitled "Design and construction for first stage of desalination plant at Tseung Kwan O – mainlaying", to Category A at an estimated cost of $720.5 million in money-of-the-day prices at its meeting held on 13 October 2017. The works comprises laying of a 1200 millimetres diameter fresh water main of about 10 kilometres in length, connecting the proposed desalination plant at Tseung Kwan O to the existing Tseung Kwan O fresh water primary service reservoir and associated works. As a result, the fresh water produced from the proposed desalination plant can be conveyed to the existing water distribution network. Contract No. 13/WSD/16 - Mainlaying in Tseung Kwan O (NEC ECC Option C) was awarded in November 2017.
The tender process for Contract No. 13/WSD/17 - Design, Build and Operate First Stage of Tseung Kwan O Desalination Plant was initiated on 3 November 2017.