Technical Summary

On 2 April 2026, the UK government formally launched the next phase of its energetics and munitions factory programme — the single largest reinvestment in sovereign energetics manufacturing capability since the closure of the Royal Ordnance Factories in the early 2000s. The announcement confirms that the UK has been without indigenous energetics production capacity for nearly two decades, a strategic vulnerability that successive administrations allowed to develop unchallenged until the reality of high-intensity warfare in Ukraine forced a fundamental reassessment.

The programme's headline figures are significant: £1.5 billion in dedicated energetics factory investment, drawn from a total UK munitions spend commitment of £6 billion this Parliament, itself underpinned by the £1.5 billion additional defence allocation announced in the Strategic Defence Review of June 2025. The government has identified at least 13 potential sites across the UK — spanning Grangemouth (Scotland), Teesside (North East England), and Milford Haven (Wales), with additional sites under assessment in Dumfriesshire, Ayrshire, Stirlingshire, Pembrokeshire, Monmouthshire, Cumbria, Shropshire, Cheshire, Derbyshire, Essex, Worcestershire, and Hampshire. The target is to deliver at least six factories within this Parliament, with the first facility expected to break ground within the next year and engineering design work already commissioned.

The programme identifies nine key energetic materials across the three primary categories — propellants, explosives, and pyrotechnics — that the UK must be able to manufacture domestically. These include single-base nitrocellulose (NC) and double-base NC/NG propellants, military-grade explosives such as RDX, TNT, and DNAN-based insensitive high explosives (IHE), and a range of pyrotechnic compositions. Each material carries its own manufacturing, handling, and qualification requirements under STANAG 4170 (energetic material qualification) and STANAG 4439 (insensitive munitions). Investment windows have been set for Q3 2026 (first round), with subsequent rounds in Q2 and Q4 2027, and the programme is expected to create a minimum of 1,000 new jobs.

 Key Context

In parallel with the energetics factory programme, two drone factories are opening — Helsing in Plymouth and STARK in Swindon — while BAE Systems Glascoed (ROF Glascoed, Monmouthshire) is doubling its 155mm shell filling capacity from 40,000 to 80,000 rounds per year. BAE has invested over £150 million since 2022 and has developed innovative energetics and propellant approaches. However, Glascoed remains the UK's sole ammunition filling factory — a single point of failure in the national munitions supply chain.

Analysis of Effects: Supply Chain and Regulatory Architecture

The restoration of indigenous energetics production addresses a critical sole-source vulnerability in the UK WOME supply chain. Currently, BAE Systems Glascoed is the only facility in the UK capable of filling munitions with energetic materials. If Glascoed were rendered inoperative — whether through accident, industrial action, or adversary action — the UK would have zero domestic filling capability. The six-factory programme distributes this risk across multiple sites, but the complexity of establishing new energetics manufacturing should not be understated.

Each new facility will require a comprehensive regulatory architecture before a single gram of energetic material is processed. Under DSA 03.OME (Defence Ordnance, Munitions and Explosives Regulations), any site manufacturing, processing, or storing explosives for defence purposes must operate under an approved safety case. This includes hazard identification, risk assessment, and demonstration of ALARP (as low as reasonably practicable) residual risk. For energetics manufacturing — where processes involve synthesis, mixing, pressing, and granulation of materials with inherent sensitivity to friction, impact, and electrostatic discharge — the safety case burden is substantial.

Beyond the defence regulatory framework, each facility will fall under civilian jurisdiction. COMAH (Control of Major Accident Hazards Regulations 2015) applies to any site holding energetic materials above the specified thresholds, and most if not all of the proposed factories will qualify as upper-tier COMAH establishments — requiring a full Safety Report, an on-site emergency plan, domino-group notification, and HSE/EA permissioning. ER2014 (Explosives Regulations 2014) will govern the licensing of each site's explosives storage and processing areas, with HSE as the licensing authority. The AASTP-1 quantity-distance (QD) requirements will apply to all explosive storage at factory sites — the siting of magazines, process buildings, and inhabited building distances will be constrained by the NATO QD tables, particularly as the UK transitions to full AASTP-1 adoption under Project COWLEY.

 Sole-Source Vulnerability

Until the first new energetics factory achieves operational capability, BAE Systems Glascoed remains the UK's only filling facility. The programme timeline — first ground-breaking within a year, with full production years beyond that — means the sole-source vulnerability will persist through at least 2028-2029 at the earliest. Defence planners should assume no additional domestic energetics production capacity before the end of this decade.

Personnel and Safety Considerations

The most significant risk to the programme is not financial or regulatory — it is human. Two decades of dormant energetics production have created a profound WOME competence gap. The specialist workforce required to safely manufacture energetic materials — process chemists, energetics formulation engineers, explosive safety officers, COMAH safety report authors, and qualified production operatives — has largely retired, moved overseas, or transitioned into adjacent sectors. The institutional knowledge that underpinned the Royal Ordnance Factory workforce has not been passed on.

Under the ESA NOS (Explosives Sector Ability National Occupational Standards) framework, personnel in Key Roles at energetics manufacturing facilities must demonstrate assessed competence across defined standards — including hazard awareness, safe systems of work, emergency response, and process-specific technical knowledge. The NOS Key Role structure assumes an existing pipeline of experienced practitioners from which new workers can be trained and assessed. That pipeline does not currently exist at the scale required for six new factories.

The DSA 03.OME regulatory framework compounds this challenge. Each facility will require a named Ammunition Safety Adviser (ASA), qualified WOME practitioners at multiple levels, and a demonstrated competence assurance system. The Defence Safety Authority will not approve a safety case without evidence that the workforce is competent to execute the activities described. Finding, training, and qualifying this workforce — estimated at over 1,000 new roles — within the programme's aggressive timelines represents a critical-path dependency.

Defence Secretary John Healey MP and Minister for Armed Forces Alistair Carns have both emphasised the job creation potential of the programme. However, the gap between announcing 1,000 jobs and producing 1,000 qualified energetics workers is measured in years of training, mentorship, and supervised practice. The IExpE (Institute of Explosives Engineers) and Defence Academy pathways can contribute, but they were not designed for workforce generation at this scale and speed.

Data Gaps

Several critical unknowns remain in the public domain:

Sources

  1. GOV.UK, "UK building the factories of the future as government launches next phase of new munitions and energetics factories," 2 April 2026. gov.uk
  2. HM Government, Strategic Defence Review, June 2025.
  3. DSA 03.OME — Defence Ordnance, Munitions and Explosives Safety Regulations.
  4. COMAH — Control of Major Accident Hazards Regulations 2015 (SI 2015/483).
  5. ER2014 — Explosives Regulations 2014 (SI 2014/1638).
  6. NATO STANAG 4170 — Principles and Methodology for the Qualification of Explosive Materials for Military Use.
  7. NATO STANAG 4439 — Policy for Introduction, Assessment and Testing for Insensitive Munitions.
  8. NATO AASTP-1 — Manual of NATO Safety Principles for the Storage of Military Ammunition and Explosives.
A&ER References

Applicable & Enabling References

Key regulatory, standards, and policy references applicable to the UK energetics factory programme and WOME safety case requirements.

Defence Regulations
  • DSA 03.OME — Defence Ordnance, Munitions and Explosives Safety RegulationsDefence Safety Authority
  • DSA 03.OME Part 1 DCOP 103 — Safety Case Requirements for OME ActivitiesDefence Safety Authority
Civilian Regulations
  • COMAH 2015 — Control of Major Accident Hazards Regulations 2015 (SI 2015/483)HSE / EA Joint Competent Authority
  • ER2014 — Explosives Regulations 2014 (SI 2014/1638)Health and Safety Executive
NATO Standards
  • STANAG 4170 — Principles and Methodology for the Qualification of Explosive Materials for Military UseNATO Standardization Office
  • STANAG 4439 — Policy for Introduction, Assessment and Testing for Insensitive MunitionsNATO Standardization Office
  • AASTP-1 — Manual of NATO Safety Principles for the Storage of Military Ammunition and ExplosivesNATO Standardization Office
Workforce Standards
  • ESA NOS — Explosives Sector Ability National Occupational Standards — Key Role Competence FrameworkExplosives Industry Group / Cogent Skills
ISC Defence Intelligence Editorial Team
WOME Intelligence & Analysis

ISC Defence Intelligence is the analysis arm of Integrated Synergy Consulting Ltd, providing WOME intelligence, regulatory analysis, and professional CPD content for UK defence practitioners and the wider explosives sector.

Disclaimer: This article is produced from open-source information only (OSINT). No classified, protectively marked, or export-controlled material has been used. All analysis represents the professional assessment of the ISC Defence Intelligence editorial team and does not represent the views of HM Government, the Ministry of Defence, or the Defence Safety Authority. Contact: [email protected]