Real-Time Reverse Auction Procurement System
“Start on time, close when prices stop moving, and know the result instantly.”
The Real-Time Reverse Auction procurement model operated by Property Auction House is designed in accordance with modern public and private sector procurement principles widely adopted in Thailand and internationally.
The system aims to ensure fair competition, transparency, auditability, and best-value pricing under clearly defined procurement conditions.
This procurement approach follows internationally accepted electronic procurement (e-Procurement / e-Bidding) standards, commonly applied by government agencies, state enterprises, and large corporations.
Core Principles of the System
Simultaneous bidding by all qualified suppliers
Real-time price competition
Anonymity of bidders to prevent collusion
Complete audit trail for internal and external review
Immediate result declaration upon auction closure
Real-Time Reverse Auction Process Flow
Pre-announced Auction Start Time
The auction begins precisely at the announced time (e.g. 10:00 AM).Pre-Qualification of Suppliers
Only suppliers who pass technical, legal, and commercial qualification criteria may participate.Simultaneous Real-Time Price Submission
All bidders submit prices at the same time
Bidder identities are concealed
The system displays only price rankings and the current best price
Continuous Price Competition
The auction continues until no further price reductions are submitted.Final Call Mechanism
A final bidding window is automatically triggered, allowing participants one last opportunity to submit a lower price under equal conditions.Automatic Auction Closure & Instant Result
If no lower bid is submitted during the Final Call, the system closes the auction automatically and declares the winner immediately.Full Audit Trail & Record Retention
All bid data, timestamps, and actions are securely recorded and available for audit and compliance review.
Suitable Applications
Public Sector
Procurement of goods and supplies
General service contracts
Standardized outsourcing projects
Private Sector & Corporations
Public listed companies
Industrial and logistics procurement
Energy, construction, and supply chain sourcing
Best Suited For
Clearly defined specifications
Competitive supplier markets
Cost-driven procurement decisions requiring transparency
Advantages of Real-Time Reverse Auction
✔ High transparency and traceability
✔ Fair and open competition
✔ Achieves true market-driven pricing
✔ Faster procurement cycle
✔ Supports governance and compliance standards
Limitations & Considerations
Not suitable for highly subjective or design-driven projects
Requires clearly defined TOR / specifications
Suppliers must be operationally prepared for real-time bidding
Price should not be the sole decision factor for complex services
FAQ – Frequently Asked Questions
Q1: How is Real-Time Reverse Auction different from traditional e-Bidding?
A: Real-Time Reverse Auction allows live price competition, whereas traditional e-Bidding often involves sealed bids with delayed results.
Q2: Can this system be used for government procurement?
A: Yes, provided it complies with applicable procurement regulations and internal governance policies.
Q3: Is bidding data auditable?
A: Yes, all bids are recorded with complete timestamps and audit logs.
Q4: Does this system reduce bid collusion?
A: Anonymity and real-time competition significantly reduce collusion risks.
Q5: What preparation is required?
A: Clear specifications, supplier qualification criteria, and transparent auction rules.
Interested in a real-time online auction system, or would you like to test the platform for your business?
Contact Property Auction House today. Our team is ready to provide system demonstrations, professional consultation, and tailored auction solutions to support your business growth.







