Subcontracting in MDB Projects

Subcontracting in MDB Projects refers to the contractual arrangement by which the winning prime contractor delegates a defined portion of the contract's scope to one or more specialist firms, with the prime contractor retaining full responsibility to the implementing agency for all work, including the subcontracted portions.

What is Subcontracting in MDB Projects?

When a prime contractor cannot or does not wish to self-perform every element of a large contract, it engages subcontractors to handle specialised work, such as electrical installations, laboratory testing, specialised civil works, or technology integration. Under MDB procurement rules, the key principle is that subcontracting does not transfer the prime contractor's legal obligations: the prime remains solely responsible to the implementing agency regardless of how much work it subcontracts.

MDB bidding documents typically require bidders to disclose their intended major subcontractors at the bid stage and to confirm that each subcontractor meets the eligibility requirements of the applicable MDB, meaning they must be from an eligible country and must not be debarred. For subcontracts above a stated threshold, the implementing agency and sometimes the MDB under prior-review must approve the subcontractor before work begins. Unapproved substitution of subcontractors mid-contract can trigger contract compliance issues. The percentage of work that may be subcontracted is also often capped, commonly at 30 to 50 percent, to ensure the prime contractor genuinely manages the project.

Why Subcontracting matters for bidders

For specialist suppliers, being named as a designated subcontractor in a prime bidder's offer is a recognised route to MDB-funded work without competing in the main tender. Building relationships with likely prime contractors before tenders are published, and making your technical qualifications clear and well-documented, positions you to be included in bids. For prime contractors, careful subcontractor vetting before bid submission avoids the costly problem of discovering that a preferred subcontractor is ineligible or uninsured after contract award.

FAQ

Does a subcontractor need to be from an MDB eligible country?

Yes. All subcontractors on MDB-financed contracts must be from countries eligible under the applicable MDB's rules, just as the prime contractor must be.

Can a prime contractor change its subcontractors after award?

Only with prior written approval from the implementing agency, and for large subcontracts, from the MDB. Substituting a named subcontractor without approval is a contract breach.

Is a subcontractor paid directly by the implementing agency?

No. The implementing agency pays the prime contractor, who in turn pays its subcontractors. The agency has no direct payment obligation to subcontractors unless the contract explicitly provides for it.