Component procurement is a key decision in contract electronics manufacturing. The choice between a free-issue model and CEM-managed procurement affects cost control, lead times, supply chain resilience and production efficiency.
At ADAPT, we support both approaches. However, many OEMs are increasingly moving towards CEM-managed procurement to reduce internal workload and improve coordination across the supply chain.
What are the two procurement models?
Free-issue procurement
In a free-issue model, the OEM is responsible for sourcing and supplying all components to a Contract Electronics Manufacturer (CEM) such as ADAPT, who then uses these parts for assembly.
This approach gives OEMs direct control over purchasing decisions but also places responsibility for inventory management, logistics and component availability on them.
CEM-managed procurement
In a CEM-managed procurement model, the Contract Electronics Manufacturer sources components directly from approved suppliers and manages procurement as part of the build process.
The OEM retains design ownership, while the CEM manages sourcing, supply chain coordination and material flow alongside production.
Free-issue vs CEM-managed procurement
A simple comparison of the two approaches is shown below.
|
Feature
|
Free-issue model
|
CEM-managed procurement
|
|---|---|---|
|
Purchasing responsibility
|
OEM sources and supplies components
|
CEM sources components directly
|
|
Inventory management
|
Managed by OEM
|
Managed by CEM
|
|
Supply chain coordination
|
OEM-led sourcing and scheduling
|
Integrated with production planning
|
|
Lead times
|
Dependent on OEM coordinations
|
Aligned with manufacturing schedule
|
|
Quality and traceability
|
Shared responsibility
|
Managed end-to-end by CEM
|
|
Financial impact
|
Inventory held by OEM
|
Inventory included within build cost
|
|
Obsolescence and shortages
|
Managed by OEM
|
Proactively managed by CEM
|
The advantages of CEM-managed procurement
Beyond the operational differences, the key benefit of CEM-managed procurement is integration.
When procurement sits alongside production, it helps reduce gaps between sourcing, planning and manufacturing. This improves responsiveness to shortages, simplifies scheduling and reduces the administrative burden on OEM teams.
It also allows CEMs to draw on wider supply chain experience across multiple programmes, making it easier to find alternative sources and manage component availability more effectively.
When free-issue still makes sense
Free-issue procurement still has a role in specific scenarios, particularly where:
- components are commercially or technically sensitive
- OEMs hold long-term supplier agreements
- legacy or customer-owned stock is being used
- sourcing is highly specialised or restricted
Design for Procurement in electronics manufacturing
Procurement is often treated separately from electronics design and manufacturing but in practice it has a direct impact on delivery performance.
Alongside Design for Manufacture (DfM) and Design for Test (DfT), Design for Procurement (DfP) considers how component selection and sourcing strategy affect manufacturability, lead times and supply chain resilience.
It is an increasingly important but often overlooked factor.
What this means for OEMs
In UK contract electronics manufacturing, CEM-managed procurement offers a more integrated and responsive way to source components. While free-issue procurement remains appropriate in specific cases, many OEMs benefit from moving to a model that reduces internal complexity and connects procurement with production more efficiently.
At ADAPT, component procurement is fully integrated within our manufacturing operations. With established UK supply chains, long-standing supplier relationships and in-house engineering support, we manage sourcing alongside production planning to support build continuity, component availability and programme control across complex assemblies.
To discuss your requirements or a specific project, please get in touch with our team.