Project name: Design, Built, Operate & Maintenance of Recycling Handling Equipment at Treelodge @ Punggol, Singapore PV worked successfully with Housing Development Board of Singapore (HDB) to introduce centralized recyclable waste collection system, which improve the recyclable collection by 3 to 4 times as compare to other HDB precinct. This is also the First Singapore Green Mark Platinum Public Housing Project. The survey found that the average weight of recyclables collected from a block at Treelodge@Punggol in one month was 400kg, four times the amount collected from a typical HDB block without a recycling chute.