Bougainville generates K46.74 million in internal revenue against a total 2026 budget of K844.09 million, per figures tabled by ABG Treasury and Finance Minister Albert Punghau and reported by PNG Business News and The National. National Government grants supply K520.36 million of the rest.
Delivering full government services as an independent state would cost K1.3 billion a year, NBC Bougainville and the Post Courier both reported on 23 June, drawing on the cost-of-services report the ABG launched with the National Economic and Fiscal Commission. Exepreneur has not independently verified that figure against the report itself.
The Bougainville Independence Leaders Consultation Forum endorsed 1 September 2030 as the declaration date for statehood on 28 July, Islands Business reported.
Two denominators run through this story and they measure different things. The 5.5 per cent is Bougainville’s own revenue as a share of what it spends today. Set against the K1.3 billion independence is reported to cost, the same K46.74 million covers 3.6 per cent.
What the report says statehood costs
Punghau launched the cost-of-services report, titled “From Here To There,” in Buka, PNG Haus Bung reported. Commissioned by the ABG in partnership with the National Economic and Fiscal Commission, it was built to determine the cost of government administration and service delivery as Bougainville moves toward independence. Punghau described the current understanding of those costs as an “iceberg,” with much of the expense sitting hidden inside national agency allocations in Waigani.
“A sovereign people must be served by a government that can sustain itself,” he said of the report, Asia Pacific Report carried.
At K1.3 billion, running the state costs 1.54 times what the ABG’s entire 2026 budget appropriates. Using the ABG’s own conversion of K844.09 million to US$198.4 million, which implies a rate of 4.2545 kina to the dollar, K1.3 billion is about US$306 million.
An independent estimate lands nearby. Researchers at Harvard Kennedy School’s Growth Lab put the annual cost of running a fully sovereign Bougainville at US$350 million to US$485 million in a March 2026 dispatch by Niklas Piringer and Anna Christina Thorsheim, advised by Professor Ricardo Hausmann, covering courts, police, health care, education, foreign affairs and basic infrastructure. Bougainville has 367,000 people, a GDP of roughly US$275 million, per capita income near US$750 and a civil service of about 400, per the same work.
The ABG’s own figure sits just below the Harvard range. Both point to a state costing three to five times what Bougainville’s government currently spends of its own money multiplied many times over.
Marape’s tests have risen
Papua New Guinea has attached numbers to independence twice, and the second was higher than the first.
Marape told a Sydney resources conference that Bougainville’s internal revenue of 7 per cent was not enough to get going, Reuters reported. “We need to raise this at the very earliest to about 50% of funding,” he said.
By June, the threshold had moved. Under the PANGU Party position Marape set out that month, Bougainville would need internal revenue funding at least 70 per cent of its annual budget over a five-year period, Pacific Scoop reported. Against the 2026 budget that is K590.86 million. Bougainville raises K46.74 million, so meeting the test requires a more than twelvefold increase against current spending, and closing the full K1.3 billion gap requires 27.8 times what it raises now.
“Breaking up a country is the most serious decision any parliament can make,” Marape said in a statement carried by the Pacific Islands News Association. His government has also set the parliamentary threshold at 89 votes in a 118-seat chamber, a three-quarter absolute majority rather than the two-thirds usually required for constitutional amendment. ABG Vice-President Ezekiel Masatt, who holds the Bougainville Independence Mission portfolio, told PINA the higher bar makes ratification harder than a standard constitutional change.
Where the other 94.5 per cent would come from
The Joint Supervisory Body, co-chaired by Marape and President Ishmael Toroama in Port Moresby on 5 August, agreed to transfer to Bougainville all locally generated revenue from fisheries, mining, forestry, land and other relevant taxes by 31 December 2026, Papua New Guinea Today and The National reported.
Transferring the power and collecting the money are separate problems. The Lowy Institute estimated in September 2025 that cocoa and fishing together could generate around K162 million a year for Bougainville, with cocoa exports alone exceeding K310 million in the first half of 2025 on a global supply shortfall. Lowy’s assessment was that revenue from those sectors stays theoretical without a tax administration able to capture it, and that the Bougainville Tax Office lacks the institutional capacity, enforcement mechanisms and administrative reach to collect effectively despite reform announcements in 2024.
Add Lowy’s K162 million to the K46.74 million already collected and the total reaches 16.1 per cent of the K1.3 billion figure. The Harvard modelling arrives at a similar ceiling from a different direction, estimating that even under optimistic assumptions about growth and improved tax collection, non-mining revenues could cover only 15 to 25 per cent of what independence requires. Everything above that has to come from Panguna.
The lease moved in June
Toroama issued the preparatory works and feasibility commencement certificate for Large-Scale Mining Lease 01 over Panguna on 7 August, the ABG’s published news record shows, two days after the Joint Supervisory Body met. Parliament receives the 2019 referendum result on 27 August.
Bougainville’s House of Representatives passed the Bougainville Mining (Amendment) Act 2026 in the week to 12 June, The National reported. The Act created a route for accelerated redevelopment of previously operating large-scale mines where the Bougainville Executive Council determines redevelopment to be in the public interest. It also keeps responsibility for historical liabilities with the parties responsible for them, so Bougainville Minerals Limited takes the lease while the 1989 legacy stays where it already sat. PNG Mining carried Toroama’s framing of the law as the product of years of consultation. “This legislation has not emerged overnight,” he said.
Bougainville Copper Limited learned what that meant on 16 June. In a notice to the Australian Securities Exchange dated 30 June, the company confirmed receipt of a letter of that date from the ABG’s Registrar of Tenements advising that the Bougainville Executive Council had approved a 25-year Large-Scale Mining Lease to Bougainville Minerals over the same ground covered by BCL’s Exploration Licence No. 1.
BCL’s own wording is narrower than most coverage of it. The company says its EL01 rights are suspended and subordinated to the new lease for as long as it remains in force. Bloomberg and Mining.com reported the licence as rescinded, a word BCL has avoided. The company told the ASX it was reviewing the amending legislation to confirm the law referenced by the Registrar was “in fact enacted and having the force of law,” and said it would form a committee of directors independent of the matters at hand to weigh legal and strategic options.
The new lease holder was already a BCL shareholder
Bougainville Minerals Limited held 36.45 per cent of Bougainville Copper before it received the lease.
Toroama set out the structure himself in February. Bougainville holds 72.9 per cent of BCL, he told The National, comprising 36.45 per cent held directly by the ABG and 36.45 per cent held by Bougainville Minerals. The transfer producing that position completed at a June 2025 ceremony where PNG’s National Government handed its 36.45 per cent stake to Bougainville, Business Advantage PNG reported. The remaining 27.1 per cent sits with public and institutional investors.
In that same February statement, Toroama addressed the question of competing arrangements directly. “There are no two competing redevelopment arrangements,” he said, adding that BCL remained the lawful holder of EL01 over Panguna. Four months later the Registrar of Tenements wrote to BCL to say otherwise.
The ABG’s position is that landowners gained. “Landowner equity participation is preserved and strengthened,” Toroama said in the statement RNZ carried after the grant, listing compensation, local content, benefit sharing and royalties as preserved. The equity split between the ABG and landowners inside Bougainville Minerals has not been published, and no source discloses it.
Toroama holds the presidency and the mining and petroleum portfolio, The National reported. The government he leads owns 36.45 per cent of the company that lost the licence, co-owns the company that received it, and regulates both.
The partner was built for the wrong counterparty
Lloyds Metals and Energy Limited spent the first half of 2026 constructing a vehicle to do business with Bougainville Copper.
The Indian producer’s board approved its wholly owned subsidiary Lloyds Global Resources FZCO taking an equity stake in Lloyds Panguna Metals and Energy Limited, a Papua New Guinea entity established to engage with Bougainville Copper Ltd on a long-term cooperation and mining agreement for Panguna, TipRanks reported from the company’s audited results for the year to 31 March 2026. Lloyds told an earnings call the new PNG company was active, Bloomberg reported, while cautioning investors that discussions with the government over acquiring the project were continuing.
Bougainville Copper no longer holds the ground that vehicle was built to reach. BCL and Lloyds had signed a 90-day non-binding cooperation agreement on 8 April granting Lloyds exclusive technical and commercial due diligence access to Panguna, per ad-hoc-news. Ninety days from 8 April expired in early July.
Whalesbook put Lloyds’ market capitalisation at roughly ₹99,300 crore, about US$11.9 billion, in May 2026. Screener’s later figure is ₹1.18 trillion, up 50 per cent in a year, on FY26 consolidated revenue of ₹17,113 crore and profit of ₹3,829 crore. The lower valuation is about 60 times the ABG’s entire 2026 budget.
Bloomberg reported that Lloyds saw off China’s CMOC Group to become the authorities’ preferred partner. Toroama justified the choice on the grounds that the administration did not want to dilute Panguna’s value through a Chinese equity offer, ad-hoc-news reported.
Former Bougainville president John Momis has questioned the selection process. In a February statement carried by Bougainville News, Momis, who led the ABG from 2010 to 2020 and sat in PNG’s parliament from 1972 to 2005, said Bougainvilleans should be concerned about how the Indian company was chosen.
Landowners served notice in April
A group of Panguna landowners issued a public notice in late April demanding that BCL and Lloyds halt what the group called unauthorised entry and activities at the site, RNZ reported, giving 24 hours for personnel and equipment to be removed. Lloyds had moved machinery and equipment onto the mine area to conduct feasibility and exploration work with ABG approval and in partnership with BCL.
Landowner Moses Pipiro, who put his name to the notice, told the National Indigenous Times the failure was procedural. He said “our government didn’t consult and run the awareness to the resource owners” at Panguna, describing trucks and excavators arriving before consent was sought. Ioro constituency chairman Francis Nasia disputed that account, saying the ABG had held consultations with the community, per RNZ.
Rio Tinto entered a memorandum of understanding with BCL and the ABG establishing a roundtable to address findings from the Panguna Mine Legacy Impact Assessment, its own published update shows, with the first meeting held in Port Moresby on 6 March 2025. Mining ceased at Panguna in 1989, per BCL’s corporate history, after grievances over environmental damage and revenue distribution escalated into a conflict that killed as many as 20,000 people, Bloomberg reported.
What the market has priced
Bougainville Copper’s shares fell nearly 36 per cent in a single session on 17 June, per Bloomberg’s report carried by Mining.com. Losses reached roughly 61 per cent over seven trading sessions, ad-hoc-news reported, with annualised volatility above 190 per cent.
BCL reported a group loss of K16 million for the year to 31 December 2025, widening from K13.4 million, with consolidated net assets of K73.9 million against K80.4 million a year earlier, Kalkine reported from the Chairman’s Address delivered at the company’s annual general meeting on 21 May. The National carried the same loss figure. Income from interest and dividends came to K3.5 million. The company remains debt free and will pay no dividend. BCL employs 18 people, Morningstar’s company description shows.
When the ABG moved against its licence in 2018, BCL challenged the decision and retained the licence throughout proceedings until the dispute settled in 2024, ad-hoc-news reported. That settlement produced the five-year EL01 extension granted in February 2024.
The asset got more valuable while the dispute ran
Copper fell to $6.57 a pound on 7 August, down 1.74 per cent on the day and up 47.22 per cent on the year, Trading Economics reported, with futures touching fresh record highs above $6.70 as the Democratic Republic of Congo banned copper concentrate exports and part of Codelco’s El Teniente mine faced suspension.
Bloomberg valued Panguna’s remaining 5.3 million tonnes of copper and 19.3 million ounces of gold at roughly US$160 billion in May, when copper traded near $5.6358 a pound. Copper has risen 16.6 per cent since. On the copper alone, 11.685 billion pounds at the 7 August price is US$76.8 billion in the ground. Across 17 years of operation the mine produced 3 million tonnes of copper and 306 tonnes of gold, Business Advantage PNG reported, and it has produced nothing since 1989.
What the mine has to cost
The Harvard Growth Lab puts the upfront capital required to reopen Panguna at approximately US$8.2 billion in today’s money, among the highest for any copper mine globally. Against the ABG’s US$198.4 million budget, that is roughly 41 times annual spending. Bloomberg separately cited 2020 estimates of seven to eight years and US$5 billion to US$6 billion.
The Harvard modelling makes the financing structure the decisive variable rather than the geology. Tax revenue Bougainville can capture depends directly on how risky investors perceive the project to be, the researchers found. Higher perceived risk means investors require higher returns, which means a larger share of revenue flows to the developer rather than the government. At high risk levels, reflecting conflict history, regulatory uncertainty and a civil service of roughly 400 people, their modelling shows a reopening could fail to generate substantial government revenue at all.
Kalkine’s June assessment of Bougainville Copper listed the region’s political status, contested partner selection, historical environmental damage, the scale of capital required and financing uncertainty among the risks attached to redevelopment. The events of June moved several of them.
If the 2020 timeline still applied from the date of the certificate Toroama signed, first production would arrive after the 2030 declaration date. Parliament takes the referendum result on 27 August, with Marape and Toroama jointly setting the date of the vote itself, per RNZ. Ratification requires 89 of 118 members.
Bougainville needs K1.3 billion a year to run a country and raises K46.74 million. The asset that closes the difference requires capital Bougainville cannot supply, on terms set by how risky the last three months made it look.
