On 30 September 2025, Prime Minister G. Zandanshatar announced that Battömöriin Enkhbayar would return as Minister of Justice and Internal Affairs — expressly to pursue the coal theft investigations and to investigate Speaker of Parliament D. Amarbayasgalan's alleged involvement (Inside Mongolia, 6 October 2025; Wikipedia, 2025 Mongolian political crisis). One day later, on 1 October 2025, Enkhbayar's own party expelled him (Inside Mongolia, October 2025; The UB Post, October 2025). He had, in that same autumn, publicly accused the Speaker of involvement in a murder and of a cover-up — accusations no police, court or anti-corruption process has ever substantiated, and which the police statement printed beside them in this article directly contradicts. The expulsion was later nullified. On 4 April 2026 he took a different chair, one that touches every decision the government makes: Chief of the Cabinet Secretariat in the cabinet of Prime Minister Nyam-Osoryn Uchral (Cabinet of Nyam-Osoryn Uchral listing, Wikipedia, 2026; cabinet.gov.mn, About Us page, 2026).
That sequence is the spine of this investigation. It is a story about a political bomb, not about a money file.
No personal corruption case against B. Enkhbayar was found in any source checked. No IAAC action, court case or sanction against him personally was located in this sweep. A criminal record check found no conviction in the sources checked (Decode profile, checked 25 September 2026). No source checked reports any state contract, procurement award or fund disbursement to any company connected to him or his family. No company is established as owned or directed by him. His international file is likewise empty in the sources checked: no identity-confirmed match in the ICIJ Offshore Leaks database, and no investigation naming him located in OCCRP or Reuters (Decode profile and QC file, engine sweep 26 October 2026). Those are negative findings of the sources checked, not clearances — and in the international case, the sweep was not run under every spelling variant of his patronymic in foreign registries, so it must not be read as one.
What the record does contain is an extraordinary public accusation, made by a sitting justice minister against the Speaker of his own parliament, a party expulsion that followed within twenty-four hours of his appointment, and one unexplained change in his own asset declarations. Each is printed below at its proper tier.
Battömöriin Enkhbayar was born in 1977 (List of members of the State Great Khural, 2024–2028, Wikipedia). He was a university lecturer from 1998 to 2004, and Deputy Minister of Justice and Internal Affairs from 2016 to 2018 (Parliament biography, via Decode profile, 26 October 2026; The UB Post, October 2025). First elected in 2020 and re-elected in 2024, he is a second-term MP for the 8th constituency, Bayanzürkh District, for the Mongolian People's Party (List of members of the State Great Khural, 2024–2028, Wikipedia) — a dual mandate of MP and minister.
His first stint as Minister of Justice and Internal Affairs ran 2023–2024, succeeding Khishgeegiin Nyambaatar (Ministry of Justice officeholders list, Wikipedia). His second ran from 24 October 2025 to 4 April 2026 (Cabinet of Gombojavyn Zandanshatar listing, Wikipedia; The UB Post, October 2025), on the stated ground that "the government will act firmly against the theft of national resources, including coal" (The UB Post, October 2025).
Since 4 April 2026 he has been Chief of the Cabinet Secretariat, succeeding Sandagiin Byambatsogt in the 19-member Uchral cabinet (Cabinet of Nyam-Osoryn Uchral listing, Wikipedia, 2026; cabinet.gov.mn, About Us page, 2026). In August 2026 he opened the Chinggis Khaan Wealth Fund Holding review, speaking for Prime Minister Uchral's "Liberate" policy (The UB Post, 14 August 2026).
The office matters because of what passes through it: the Secretariat is "in charge of processing and implementing Government decisions," publishing them, dispatching them for implementation, and monitoring performance (Cabinet Secretariat overview, Wikipedia, summarising cabinet.gov.mn). Every government resolution, including spending resolutions, passes through it.
Two stretches of his career — 2004 to 2016, and 2018 to 2020 — are not detailed in any source checked. Decode does not fill them from inference; they are document-hunt items below.
Before 2025, his public identity was built on coal. In December 2023, as Justice Minister, he led the parliamentary ad hoc committee whose public "coal theft" hearings ran over nine days in two phases and closed on 22 December 2023, examining mining, exports, sales, transport and procurement at state-owned mining companies (The UB Post, December 2023). He stated on the record that coal-theft groups had repeatedly tried to obstruct them (The UB Post, December 2023).
Reporting in October 2025 described him as "a close political ally of the PM" Zandanshatar, appointed during the Mongolian People's Party leadership fight (I-CONNECT Blog, "Mongolia's Constitutional Crisis," October 2025). He was retained by Prime Minister Uchral in April 2026 in a cabinet reporting describes as built for continuity between factions (Mongolia Weekly, "Real Risks to Uchral's Government," April 2026). Those are REPORTED characterisations, not Decode findings.
The central allegation follows, in Decode's format law, with the official counter-statement directly beside it at equal weight.
ALLEGATION · the murder and cover-up accusation against Speaker Amarbayasgalan. In autumn 2025, B. Enkhbayar, a close political ally of Prime Minister Zandanshatar, publicly accused Parliament Speaker D. Amarbayasgalan of involvement in the murder of a man who allegedly held sensitive evidence relating to high-level corruption, and hinted at a cover-up of a death linked to bribery in the Tavan Tolgoi coal affair (I-CONNECT Blog, "Mongolia's Constitutional Crisis," October 2025; Mongolia Weekly, "Mongolia's Political Crisis Deepens," October 2025). Decode Mongolia has not verified this claim; it is published as reported.
The police statement, printed beside the accusation. Speaker Amarbayasgalan denies the accusation and states that it was an orchestrated slander campaign "without evidence." He cited a General Police Directorate response confirming no investigation or witness testimony related to him in the March 2025 death case, and that a request to open a case had been sent to the prosecutor with no actual investigation taken place (UB Post statement summary, October 2025).
That is the whole substantiated record. No evidence supporting the accusation has been made public in any source checked, no adjudication was located, and no court, police or IAAC process has ever substantiated it. Decode takes no side; it prints both and notes that only documents, listed below, could settle it.
ALLEGATION · the Erdenes Tavan Tolgoi – China Energy coal price claim. MP B. Enkhbayar has alleged that the 2024 Mongolia–China government-to-government coal arrangement was manipulated to Mongolia's detriment: that Erdenes Tavan Tolgoi's chief executive turned a modest 5 percent discount into 50 percent, cutting the export price from around $100 to $53 a ton and locking in long-term losses worth $10 billion, in a deal with China Energy (Mongolia Weekly, "Mongolia's Political Crisis Deepens," October 2025; Inside Mongolia, "PM's 100 Days," 2025, reporting his claim that ETT "signed a deal with China Energy that set coal prices $53 below market, resulting in a $10 billion loss"). Amarbayasgalan, named in the surrounding reporting as politically responsible, states he neither negotiated nor approved the contract and has called for an investigation. No contract, audit or court finding substantiating the $10 billion figure was located in the sources checked. Decode Mongolia has not verified this claim; it is published as reported.
The $10 billion figure is the largest number Enkhbayar has put into the public record. It currently rests, in every source checked, on his own statement alone.
The expulsion is DOCUMENTED. On 1 October 2025 the MPP General Supervisory / Central Control Committee excluded him from party membership for violating party rules (Inside Mongolia, October 2025). Seven MPP lawmakers threatened to leave if it was not reversed. The resolution was later nullified by majority vote of the same committee (The UB Post, October 2025, reporting the nullification).
His own public response, as reported at the time, was that the committee "has no constitutional authority," that its members "were summoned as witnesses in the coal theft hearings," and: "I will not be expelled by coal thieves. I will expel coal thieves from this country" (Mongolian Business Database news summary of UB Post reporting, October 2025).
The stated grounds for both the expulsion and its nullification are not set out in the sources checked; the committee's resolutions would settle both. He nevertheless took office on 24 October 2025 and served until 4 April 2026 (Cabinet of Gombojavyn Zandanshatar listing, Wikipedia; Cabinet of Nyam-Osoryn Uchral listing, Wikipedia, 2026).
Enkhbayar's money record, as filed, is small for a two-term MP and repeat minister. His 2025 asset declaration, as published by the IAAC, reports his own income as ₮78,225,000, family income as ₮2,524,000, savings as ₮8,231,000 and loans as ₮0 (IAAC declaration summary, meduuleg.iaac.mn, via Decode profile). Family income of ₮2,524,000 against his own ₮78,225,000 is a very low household figure. It is consistent with the declarations as filed; nothing in the sources checked contradicts it, and no lifestyle reporting contradicting it was located. Decode prints it as filed.
His network file is equally empty, and that emptiness is itself the finding. His spouse is not named in any source checked; his children, siblings and parents are not identified, and no child is named here. No family company network of the kind found on other cabinet profiles was located (Decode profile and QC file, 26 October 2026).
One item in that sparse record does not reconcile, and Decode presents it as an open question, not an accusation.
His 2023 declaration summary reported 5,038 shares in Erdenes Tavan Tolgoi JSC (OpenDataLab, 2023, via Decode QC file, 26 October 2026). His 2025 declaration reports no ownership interests in business entities for him or his family (UIH.mn, 2025, via Decode QC file, 26 October 2026). Whether those shares were sold, transferred or reclassified is not explained in any source checked — all three are possible, and all are unproven. Until a register extract or change filing is produced, the disappearance of 5,038 shares in the state coal company at the centre of the investigations he led remains an unanswered question, and nothing more.
The largest sums here are not his. They are institutional flows his office processes.
The Government Reserve Fund is "the state's reserve for emergencies and urgent needs, spent by government resolution rather than through the ordinary budget lines" (Decode institutions data, government-reserve-fund). Because Reserve Fund spending is by government resolution, every Reserve Fund disbursement since 4 April 2026 was processed and published through his Secretariat. No document located in this sweep ties Enkhbayar personally to any specific Reserve Fund disbursement, its amount, or its recipient.
In October 2026 the Cabinet booked an expected ₮3 trillion Oyu Tolgoi dividend into the 2027 budget, withdrew a companion allocation law on 23 October 2026, and ran a public E-Mongolia poll, 14–28 October 2026, to support changing the wealth-fund law (Mongolia Weekly, 19 October 2026; Particle News / EBC reporting, 22–24 October 2026). He processes this flow; no source attributes the choice to him personally. He is also REPORTED to be on the Oyu Tolgoi negotiating team thanked by Prime Minister Uchral over agreements the Prime Minister said cut management costs by USD 2.2 billion — the Prime Minister's figure, as reported (Mining Insight, 2026).
At the 14 August 2026 review Enkhbayar opened, Chinggis Khaan Wealth Fund Holding reported cutting 260 positions across 14 companies and savings of 67.3 billion MNT under "Liberate" (The UB Post, 14 August 2026). That is the holding's reported, unaudited figure. One association from that meeting is DOCUMENTED: his deputy, D. Tsolmon, is also Chair of that holding's board (The UB Post, 14 August 2026) — an institutional association, not a personal or family tie.
For clarity: Tsendiin Nyamdorj, sometimes still listed in this seat, held it from 27 January 2021 to 30 August 2022, when D. Amarbayasgalan replaced him (AKIpress, September 2022; Mongolia Focus, UBC, September 2022). He is a former holder, not this investigation's subject.
The following documents would prove, break or complete the claims in this article:
Under Decode's reply law, Battömöriin Enkhbayar will be contacted in writing before publication. He will be given the claims concerning him — his tenure record, declaration figures, the 5,038 ETT shares, the Ogsokh Orgil identity record, his accusations against the Speaker and their evidence, his $53 and $10 billion figures, the grounds for his expulsion and its nullification, the Reserve Fund resolutions of his tenure, and his office's role in the Oyu Tolgoi dividend decisions — and invited to answer each, with documents.
His answer will run beside the piece, and his documents will be linked. Any claim a document proves false will be relabelled proven false, with proof linked, not quietly deleted. If he declines or does not answer within the window he will be given, that will be stated. Nothing has been sent to him yet, and nothing will be published before that contact is made.