Australia mines 55% of the world's lithium and exports 95% of it as spodumene rock. The SBC procurement requirement is also the demand backstop that makes sovereign manufacturing viable. $310 billion saved by building HVDC cable, pipeline, solar panels, batteries, and prefab construction domestically.
Australia mines 55% of the world's lithium and exports 95% of it as spodumene rock at $800 per tonne. China buys it, processes it to battery chemicals, manufactures cells, and sells batteries back to Australia for $70–100 per kWh. Australia does the digging. China does the building. The value uplift sits with the processor, not the miner.
Australian manufacturers currently pay $100–150 per MWh for electricity. Competitors in China, South Korea, and the Middle East pay $20–40 per MWh. The power price gap alone makes Australian manufacturing uncompetitive regardless of labour productivity, geographic advantage, or political stability. The cost of one input destroys the unit economics of every output.
Australia has no sovereign manufacturing capability for the products the SBC needs. HVDC cable, solar panels, battery cells, pipeline — all imported. A $140–210 billion infrastructure programme that sends every dollar offshore. The SBC procurement requirement is also the demand backstop that makes sovereign manufacturing viable.
Australia's annual lithium production as spodumene rock: $69 million. As battery cells: $43–54 billion. That is a 700-fold increase in value from a single processing step Australia does not currently do at scale. The SBC's own battery procurement — 50 GWh minimum in the first corridor alone — is the anchor contract. Three Kalgoorlie gigafactories: 66,000 jobs, $8.4B/year revenue.
Aluminium smelting is among the most energy-intensive industrial processes on earth. Australia has the bauxite, the alumina, and the aluminium smelters — but smelters have been closing because Australian power prices are too high. At 6c/kWh corridor industrial power, Australian aluminium becomes the cheapest-to-produce green aluminium on earth. Smelters reopen. Exports multiply. The slow death of the industry reverses.
Five procurement categories — HVDC cable, gas/water pipeline, solar panels, battery storage, prefab construction — cost $313B imported vs $168B domestic. The saving is $310 billion over the SBC build — more than the entire SBC first-decade capital requirement. Building domestic manufacturing capability doesn't cost money. It generates it.
The Broken Hill to Mildura corridor is the natural home for HVDC cable manufacturing — historically industrial, mining-skilled, rail-connected. 25,000+ km of HVDC cable required. Import at $1.5M/km: $37B. Domestic at scale: $12B. Saving: $25B. Copper rod from Mount Isa. Aluminium from Gladstone. Cable drawn and insulated in Broken Hill. Hunter Valley and Far West NSW jobs.
Australia uses silicon from its own quarries to make solar panels — currently, almost none. 80 GW of solar panels needed for Phase 1 alone. Import at $200/m²: $80B. Domestic at scale: $28B. Saving: $52B. Assembly in central Queensland — close to the silicon feedstock, on the SBC corridor, in the solar resource zone. Assembly from imported cells initially, with silicon wafer and cell manufacturing brought online as scale increases.
Gas and water pipeline: 20,000+ km needed. Import at $500k/km: $10B. Domestic: $3.5B. Saving: $6.5B. Steel rolled at Whyalla and Newcastle from Australian iron ore. Whyalla steelworks — subject of national emergency intervention — becomes the pipeline steel supplier for the largest infrastructure programme in Australian history. From closure to indispensable in one parliamentary term.
The SBC is the anchor demand. Any equipment supplier wanting to sell to the SBC commits to minimum local content, technology transfer, and minimum 30% Australian equity in any joint venture. Foreign suppliers are welcome — on Australian terms. The price of access to the SBC procurement pipeline is sovereignty in the supply chain. No exceptions. No carve-outs.