Check before
you buy.
For any developer or contractor in Malaysia: see leftover material across your sites weeks early, and order only what you need.
Not affiliated with Sime Darby Property.
- Reserve
- 800
- Order now
- 200
- Confirm by
- 24 Nov
Estimated savingRM 11,098 · 6.4 t reused
The problem
Extra material gets thrown away because no site can see what others have.
- 31,288 twaste diverted in FY2025, a 69% diversion rateSime Darby Property. Limit: Group-level totals. They say nothing about usable surplus at site level, which we have not validated with SDP.
- 75 sitessharing surplus in one in-house exchange, over 2,000 transactionsGS Engineering & Construction, Korea. Limit: Construction materials were only about 6% of transactions; site supplies and safety equipment dominated. Overseas context.
- 43%saving on one trial project that reused surplus topsoilPersimmon, United Kingdom. Limit: A single project, reported by the vendor and trade press. Not independently verified.
- 60 practitionersin Peninsular Malaysia ranked over-ordering a highly important cause of wasteZainon and colleagues, University of Malaya. Limit: A small survey of perceptions, not measured site quantities.
How it works
One simple loop across every township.
Step 1: Forecast
Compare what each phase ordered with what its plans need. The gap is likely surplus.
Step 2: Check before you buy
Buyers see surplus coming from nearby sites and order only the rest.
Step 3: Confirm by photo
When the phase ends, the engineer snaps what is left. A person confirms the count.
Step 4: Transfer and measure
Material moves between sites. Savings and tonnes are tracked.
Surplus Radar
It works before the surplus even exists.
Radar reads purchase plans, so the next site can order less in the first place. Every number shows its working.
- How each number was calculated, one click away
- A decision date to confirm or top up
- Change an assumption and everything updates
The worked example
Simulated data- City of Elmina ordered
- 5,000 tiles
- Its plans need, with wastage
- 4,200 tiles
- Expected surplus
- 800 tiles from 23 Nov 2026
- Evidence
- Moderate (phase 62% done)
- Bandar Bukit Raja needs
- 1,000 tiles by 7 Dec 2026
Recommendation
Reserve 800, order 200 now
Confirm by 24 Nov 2026. Saves RM 11,098, 6.4 t diverted.
Evidence levels use a rule of thumb from phase progress, not a measured probability.
Where AI is used
AI helps. Code calculates. People decide.
AI suggests
Reads surplus photos and plain-language requests, and writes short summaries.
Code calculates
Forecasts, matches and savings are plain arithmetic you can check.
People approve
Every hold, match and transfer needs a person. Nothing is ordered automatically.
Every AI feature shows a Live AI or Demo mode badge.
Who it is for
One habit, three roles.
Any developer, contractor or township in Malaysia. These roles are our assumption; we have not interviewed site teams yet.
Site engineer
Logs leftovers from a photo and approves structural reuse.
Procurement
Checks before every order and reserves what is coming.
Management
Sees savings, tonnes diverted and forecast accuracy.
Impact in the demo
What the dashboard measures.
- saved on completed transfers
- RM 30,621
- kept out of disposal
- 102.2 t
- CO2e avoided, illustrative
- 8.5 t
- forecast accuracy, simulated
- 87%
FAQ
Honest answers.
See it in two minutes.
Follow 1,000 tiles from first check to completed transfer. No sign-in.
Surplus AI is a student prototype built for the Sime Darby Property University Hackathon 2026. It is not affiliated with or endorsed by Sime Darby Property. All operational data is simulated.