95% sovereign content. 58,000 direct jobs. 400–600 new Australian businesses. A 20-year industrial order book that builds an industrial base that outlasts the programme.
Cons: the existing system and current trajectory. Pros: the integrated MMA corridor programme.
Manufacturing as a share of Australian GDP has fallen from over 20% in the 1970s to under 6% today. The manufacturing workforce has been hollowed out; apprenticeship pathways have eroded; the supplier base for many components is near zero.
Australia ships iron, copper, bauxite, and lithium offshore as raw ore and imports finished steel, transmission line, motors, and batteries back. Value capture sits offshore while domestic industrial capacity continues to atrophy.
Australia has no infrastructure programme of sufficient scale and continuity to anchor a sovereign manufacturing base. Without a 20-year visible order book, factories will not invest; without factories, the technology transfer leverage does not exist.
Australian industrial electricity prices are among the highest in the OECD. Aluminium smelters, steel mills, and chemical processors face structural cost disadvantage against jurisdictions with cheaper or more reliable power.
Vocational training capacity has contracted; tradespeople approaching retirement are not being replaced in adequate numbers. The technical workforce required for advanced manufacturing has been allowed to decline.
Australia depends on foreign supply chains for many components classified as critical to defence and infrastructure resilience. Sovereign capability gaps exist that the current industrial base cannot fill.
The MMA platform requires the same components - pylons, caissons, precast deck, rail steel, traction, signalling, switchgear, turbines - at continental scale for two decades. That visible order book is the leverage for mandating Australian factories.
The hub framework that delivers this commitment is detailed in the sections below: one manufacturing hub serving every MMA programme concurrently, AUKUS as the maritime industrial foundation, cross-utilisation between the land and subsea programmes as the manufacturing efficiency at programme scale.
National-scale manufacturing renaissance that outlasts the construction period. Apprenticeship pathways into engineering, fabrication, electrical, and rail trades restored at scale.
Australia’s iron, copper, bauxite, and lithium converted to finished structural steel, transmission line, traction motors, and battery cells in Australia for Australian infrastructure. Value retention shifts onshore.
Sub-10c/kWh power restores international competitiveness for Australian aluminium, steel, cement, hydrogen, and battery manufacturing. Industry follows electrons.
Sovereign manufacturing for civilian infrastructure is the same capability that supports defence manufacturing. Dual-use is a structural property of the industrial base, not a separately-funded programme.
Programme-wide ROI summary → · Memo 19 (cost) · Memo 20 (returns) · Memo 21 (counterfactual)
Australia builds a sovereign manufacturing hub once. Every major MMA programme draws from it. Target 95% Australian content by value across the continental build.
The MMP position is that Australia does not commission separate industrial bases for separate national programmes. The shipyards, the heavy fabrication, the steel supply chain, the precast concrete plants, the marine engineering workforce, and the bilateral industrial relationships built up for one programme service every other programme that draws from the same capability set. The hub is built once; the programmes that load it are continuous.
The 95% sovereign content commitment. The hub is sized and structured so that approximately 95% of total programme content (measured by value, not by component count) is manufactured in Australia. The remaining ~5% covers irreducible specialised imports — specific microelectronics, certain rare-earth-derived components, niche technology that does not justify domestic production at Australian volumes. Even those flow through Australian-assembled subsystems where possible. This is the sovereignty test made measurable: a multi-trillion-dollar programme built almost entirely from Australian materials, Australian labour, and Australian production lines.
AUKUS is the maritime industrial foundation. The AUKUS programme — repositioned per Memo 18 away from a small fleet of nuclear submarines toward unmanned coastal defence, sovereign defence manufacturing, dual-use civilian vessels, and the ongoing submarine inspection, repair, and maintenance capability that Australian operations require — commits the dockyards, the shipyards, the heavy fabrication, the marine workforce training, and the bilateral industrial relationships with the United Kingdom and the United States. None of the AUKUS investment is wasted. What changes under the repositioned scope is the output mix.
The MMA corridor programmes load the hub continuously. The MMA land corridor (continental viaduct, maglev passenger, electric freight, road, HVDC, water aqueduct, gas pipeline, oil pipeline, hydrogen pipeline, sovereign fibre, solar) and the MMA subsea corridor network (HVDC subsea cable, fibre, pipeline services, install fleet, repair fleet) both draw from the same manufacturing hub. Civilian shipbuilding for the merchant marine adds further demand. Dual-use defence outputs continue alongside. The hub stays productive across multi-decade horizons because the load is continuous, not one-shot.
Each production line serves multiple programmes. HVDC cable for the land transmission backbone and the subsea export network comes off the same line. Steel pipeline for gas, hydrogen, water, oil — same line, different specification. The shared production is the manufacturing efficiency that delivers 95% sovereign content at programme scale.
The MMA viaduct sections that carry maglev, electric freight, road, HVDC, water, gas, oil, hydrogen, and fibre on a single integrated structure. Continuous precast production for the continental land corridor. Same plants produce structural concrete for water aqueduct sections and SBC infrastructure across the continental network.
Maglev guideway sections for the passenger network. Electric freight rail track and overhead catenary for the freight network. Manufactured on shared steel and concrete production lines. Partners: Thyssenkrupp Transrapid, Hitachi Rail, Alstom, CRRC — see the MMA Consortium page for the full working group structure.
Maglev passenger trainsets. Electric freight locomotives and wagons. Signalling and control systems. Heavy assembly in Australian shipyard-adjacent fabrication facilities. Partners: Hitachi Rail, Alstom, Siemens Mobility, Stadler, CRRC for rolling stock; Thales, Hitachi Rail STS for signalling — see the MMA Consortium page. Common workforce with vessel construction.
Same production line for land HVDC transmission cable and subsea HVDC export cable. Different cable types, different armouring specs, same factory. Sized for the SBC continental HVDC backbone plus the seven-leg Asia-Pacific subsea network. Joint venture or license with Prysmian, Nexans, NKT, or Sumitomo Electric.
Same production line for land sovereign fibre and subsea fibre. Continental backbone, regional connectivity, subsea integration. Partners: Furukawa Electric, Corning, Prysmian fibre division.
Same line produces pipeline for gas, hydrogen, water, and oil services. Different coatings and inner specifications per service, same steel production. Serves the continental land corridor pipeline network and the subsea pipeline services (PNG–Karumba gas first deployment, optional services on other routes).
Compression stations for the gas and hydrogen network. Pumping stations for the water aqueduct and oil pipeline network. Standard heavy-electrical and mechanical engineering output, built in the same heavy fabrication facilities that service the broader programme.
HVDC converter valves, transformers, valve halls, cooling systems, AC switchyard infrastructure. Used at every HVDC landing point: land corridor substations, subsea corridor landing stations (Darwin, Derby, Newcastle, Karumba and destination-nation terminals). Australian assembly under joint venture with Hitachi Energy, Siemens Energy, GE Vernova, or Mitsubishi Electric.
Solar panels, mounting frames, tracking systems, inverter housings, system connectors, balance-of-system components. Manufactured for the Solar Region build-out across the continental corridor. Australian sovereign capability built incrementally; current global PV manufacturing dominated by China and the partner consortium structure transfers the production line into Australian operation.
Cable-laying vessels, pipeline-laying vessels (S-lay, J-lay, reel-lay), survey ships, trencher and ROV deployment vessels, and the regional repair fleet. Built in the AUKUS-foundation dockyards by the AUKUS-trained marine workforce. Civilian dual-use maritime output explicitly named in Memo 18 as part of the repositioned AUKUS scope. Partners: Hyundai Heavy Industries, Mitsubishi Heavy Industries, Vard, Damen.
Wet-mateable connectors, repair joints, branching units for the subsea cable network. Subsea-specific manufacturing category. Sovereign Australian capability built under joint venture with SLB, Siemens Subsea, or JDR Cable Systems.
Pavement materials, bridge structural steel, road furniture, safety systems, and the civil engineering work that connects the MMA corridor to local road and rail networks. Standard Australian heavy-civil production, scaled to programme demand.
The base load of the hub: structural steel from BlueScope and InfraBuild, heavy fabrication for hulls, weldments, large assemblies, pressure-vessel components. Common workforce and supply chain across every other manufacturing category. AUKUS commits the largest sovereign Australian heavy-fabrication capacity ever assembled; the MMA programmes keep it loaded continuously.
Naval architects, marine engineers, welders, ship-fitters, pipefitters, electrical and instrumentation trades, ROV operators, survey crew, install crew, repair crew. Trained through the AUKUS workforce programme, the Australian Maritime College, TAFE pathways, and university programmes at UNSW, UWA, Adelaide. Continuous employment across multi-decade horizons because the load is continuous across defence and civilian work.
One hub. Two install channels: land and subsea. Workforce and equipment cross over as load demands.
Land install — road, rail, and crane crews building the continental MMA corridor across 23,200 km of Australian land network. Viaduct module assembly. Track and guideway laying. Pipeline lay and bury along the corridor. Substation and converter station civil works. HVDC conductor installation integrated into the viaduct structure. Solar Region build-out across the continental footprint.
Subsea install — cable-lay vessels and pipeline-lay vessels building the Asia-Pacific subsea corridor network across approximately 32,500 km of seabed (detailed in Memo 26). Multiple services joined into the corridor by the vessel during install. Landing-station civil works at Australian and destination-nation termini. The eight subsea-specific capability streams and the AUKUS-foundation cross-utilisation are detailed in Memo 27.
Both channels draw from the same factory output. Both employ the same marine engineering workforce in different phases of their careers. Both keep the hub loaded continuously across the build-out and the lifetime operational phases that follow.