Under the Freedom of Information Act 2000, I am requesting the following information regarding supplier rebate options offered as part of your Supplier Incentive Service, Supplier Incentive Programme, Supplier Advantage Initiative, or equivalent early payment scheme (hereafter collectively referred to as "SAI").
Please provide the following information for all construction-related procurements (as defined below) from the financial year in which your early payment rebate programme was first introduced up to the most recent complete financial year available:

1. Rebate Option Success Rates at Tender Stage
For construction and construction adjacent tenders where suppliers were asked to select an early payment rebate percentage (EPR) as part of the evaluation or award criteria, please provide:
• The number of contracts awarded to suppliers that proposed each of the following rebate levels:
o 0.0%
o 0.5%
o 1.0%
o 1.25%
o 1.5%
o 2.0%
o Any other levels
• Where different suppliers on a multi-supplier contract (e.g., frameworks) opted for different rebate levels, please provide the total number of suppliers who opted for each rate.
Please provide this data broken down by financial year.

2. Uptake of the Early Payment Scheme (e.g., Supplier Advantage Initiative)
Please provide the following:
• The number of contracts awarded to suppliers who did not agree to participate in the early payment scheme at all.
• The number of suppliers (or contracts, where applicable) that did opt in to the scheme.
• The aggregate annual contract value for those who opted in vs those who did not.
Again, please provide this data broken down by financial year.

3. Relevant Procurement Categories
For the purpose of this request, please include only contracts that fall under the following CPV codes or equivalent internal classification:
• 44000000–44999999: Construction structures and materials; auxiliary products to construction (excluding electric apparatus)
• 45000000–45999999: Construction work
• 50000000–50999999: Repair and maintenance services
If your procurement system does not categorise contracts by CPV, please provide data for contracts that meet any of the following criteria:
• Use of JCT or NEC contract forms
• Categorised internally under “construction”, “building works”, “highways”, “repairs and maintenance”, or equivalent

4. Clarifications for Response Format
To avoid the need for internal analysis, please respond using whatever reporting fields your procurement and finance systems already hold. If the data is not held by CPV code but is tracked by contract type or internal classification, please use those proxies and clearly identify what categorisation has been used.

Please include data in spreadsheet or tabular format (e.g. Excel or CSV) where possible.