By Alex MacDonald

LONDON--U.K.-listed Indonesian coal miner Bumi PLC (BUMI.LN) said Wednesday that it will be considering each of three transactions proposed by the Bakrie family on their own merits and will refrain from making a recommendation until a probe into financial irregularities at its Indonesian assets is well advanced.

Bumi's board of directors received last week an offer from the powerful Indonesian Bakrie family to end their ties with the company by buying out its Indonesian assets for $1.2 billion and cancelling the family's stake in the London-listed company. The deal would end a tumultuous period in which Bumi's board members pitted themselves against each other over corporate governance rows that caused the company's shares to plunge.

The proposal put forth by Long Haul Holdings Ltd, a unit of the Bakrie family, involves three deals. The first two are focused on buying out Bumi's 29% stake in Indonesia's largest coal miner PT Bumi Resources TBk (BUMI.JK) in which the Bakrie family has a significant interest. The third deal is focused on acquiring Bumi's majority stake in Indonesia's fifth largest coal miner PT Berau Coal Energy TBk (BRAU.JK).

Bumi said in a statement that its independent non-executive directors will be considering each of the three deals on their own merits and would be evaluated on the basis of their value for shareholders and ability to deliver. Analysts have questioned whether the debt-laden Bakrie Group would have the ability to fund the purchases.

"We have appointed Rothschild Group, acting as an unconnected and independent financial adviser, to evaluate each of these proposals, on which the Board has not yet formed a view," said Julian Horn-Smith, the company's Senior Independent Director.

"Our objective is to ensure all shareholders are treated fairly and we will update the market as soon as practicable," he added.

Bumi was created in June 2011, when Bakrie family coal assets were folded into European financier Nathaniel Rothschild's investment firm, then called Vallar. The venture has struggled for much of its life. Its share price plummeted by more than 70% since its listing price of GBP 10 ($16.09) as coal prices fell, the Bakrie Group struggled with debt and Mr. Rothschild and other investors criticized the company's accounting standards in Indonesia. The latest flare-up came in September, when Bumi PLC launched a probe into possible financial irregularities at Bumi Resources.

Bumi said that the independent probe is still underway and the board won't make a recommendation until the investigation is "appropriately advanced." U.K. law firm Macfarlanes, which has been appointed to carry out the investigation, declined to comment.

A person familiar with the matter said Bumi's board could receive an independent valuation on the first deal as early as Friday and said the probe would take several weeks to complete.

The first deal would involve the Bakrie family giving up its 23.8% stake in London's Bumi in return for a 10% stake in Indonesia-listed Bumi Resources that would be carved out of Bumi PLC's stake of about 29% in Bumi Resources. In the second proposal, the Bakrie Group would buy Bumi PLC's remaining 18.9% stake in the Indonesian unit for $278 million. In the third phase, the Bakrie Group would buy Bumi PLC's other mining asset, an 85% stake in PT Berau Coal Energy, for about $950 million.

At 1431 GMT, Bumi's shares were up 1.9% at 245 pence a share. The shares have risen nearly 40% since the day prior to when the Bakries publicly announced their offer.

(Eric Bellman contributed to this story.)

Write to Alex MacDonald at alex.macdonald@dowjones.com

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