The Mining Remediation Authority has launched an early market engagement exercise seeking supply chain interest in the upcoming procurement of the Wemyss Metal Mine Works scheme.
The works will be delivered as part of the Wales Metal Mine Programme (WMMP) between NRW and the Mining Remediation Authority.
The programme supports the Western Wales River Basin Management Plan (Western Wales River Basin Management Plan 2021 – 2027 which was published as a final plan in July 2022 (specifically measures CYM49 - Deliver metal (non-coal) mine water programme as identified under the Metal Mine Strategy for Wales and WW0031 - Continue to investigate mine water impact and develop remediation plans in accordance with the Metal Mines Strategy for Wales).
The plan has a statutory function associated with the Water Framework Directive (The Water Environment (Water Framework Directive) (England and Wales) Regulations 2017).
Works – Summer 2027
- Introduction of an Upper Storage/Attenuation Pond to reduce flows into Upper Mill Race Stream. This will include increasing the existing bund height and installing flow control infrastructure. Approx length 90 metres and approx. height 1.5 metres.
- Bypass the circular collapse feature east of Glanville’s Shaft with new open channel.
- Introduction of highway drainage system and filter drain to avoid runoff finding its way into the main spoil tip.
- A new lined water channel with flow monitors from the public highway to the Nant Cwmnewydion, construing a new ford crossing and improving the existing ford crossing. Approx. length 95 metres.
Current estimated start and end contract dates 1 June 2027 to 1 September 2028 with a further possible extension option to 1 September 2029.
The Mining Remediation Authority is now seeking contractors who may be interested in this opportunity when it will be tendered in the near future.
Engagement deadline to express interest is 10 October 2026
Suppliers who want to express their interest are asked to write to Natalie Earnshaw - Procurement Business Partner at This e-mail address is being protected from spambots. You need JavaScript enabled to view it providing information about their organisation and relevant contact details.
Any questions about the opportunity should also be sent to the same email address.
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