By Alex MacDonald 
 

LONDON--U.K.-listed Indonesian coal miner Bumi PLC (BUMI.LN) disclosed Wednesday for the first time the full details of an alternative proposal that a group of investors led by major Bumi shareholder and co-founder Nathaniel Rothschild put forward to break ties with the powerful Indonesian Bakrie family.

Mr. Rothschild proposed to remove not only the Bakrie family but also buy out two large Indonesian shareholders and board members in order to ensure the Bakrie family is unable to influence the board in the future after it leaves the company. Mr. Rothschild's investor group also wants Bumi to remain a London-listed coal miner with an 85% stake in Indonesian coal miner PT Berau Coal Energy TBk (BERAU.JK) rather than sell the stake to the Bakrie family as envisioned in the Bakrie proposal.

Bumi's shares have tumbled more than 80% from last year's high due to a boardroom spat about corporate-governance issues and the launch of an independent probe into financial irregularities at Bumi's 29% owned Indonesian coal miner PT Bumi Resources TBk (BUMI.JK). The frayed relations between the family and the company prompted the Bakrie proposal to offer to buy back all of Bumi's coal assets for $1.2 billion and the cancellation of its shares in Bumi PLC.

The Rothschild-backed proposal contains five steps, two of which are identical to the first two transactions of the Bakrie family proposal, but which are conditional upon the Bumi chairman Samin Tan and board member Rosan Roeslani agreeing to sell out of their respective Bumi stakes. Mr. Rothschild said earlier this week that he has support from 11 investors, including Bumi's five largest independent institutional shareholders, for his proposal.

In the Rothschild-backed proposal, investors have agreed to subscribe to a Bumi rights issue equivalent to 25% of the current issued share capital. The proceeds would then be used to buy out Mr. Tan's 23.8% Bumi stake and Mr. Roeslani's 9.8% Bumi stake at current market prices. With respect to the Bakrie family's exit, Bumi would also accept the Bakrie family's offer to purchase Bumi's 29% Bumi Resources stake in two separate transactions for $278 million in cash plus the cancellation of the family's 23.8% stake in Bumi PLC, contingent upon Mr. Tan and Mr. Roeslani agreeing to a sellout of their stakes.

In a final step, Bumi would also acquire Mr. Roeslani's remaining 4% stake in Berau Coal at current share prices.

Bumi's board, which is in the process of evaluating its legal and commercial options after the near conclusion of an independent probe into alleged financial irregularities at Bumi Resources, said it "will not be in a position finally to recommend a course of action until regulatory processes are sufficiently advanced, but is working towards a transaction which separates the Bakrie Group from the company and divests the company's minority interest in Bumi Resources as soon as practical."

The board, however, said that it had no intention to recommend the sale of the Berau stake on the terms proposed by the Bakrie Group. The Bakrie group had offered to buy the Berau stake for $950 million sometime next year.

The Bakries said in a statement that Mr. Rothschild's proposal was "unworkable," given that Mr. Tan's and Mr. Roeslani had informed Bumi's board that they had no intention of selling their respective stakes on the terms proposed by Mr. Rothschild's investment group.

Mr. Rothschild said he was "disappointed" that the board didn't back his proposal and said it was evidence that the Bakrie Group and its associates continue to "exert influence over the Board and Company that is not in the best interests of minority shareholders."

Nick von Schirnding, the head of Bumi's corporate affairs and CEO designate, said "We have been in a stalemate too long and our shareholders deserve better." He added "It is clear to me that all of our key stakeholders back a separation from Bumi Resources and the Bakrie Group and we need to find a way to achieve it."

Mr. von Schirnding will take over from CEO Nalin Rathod at the end of the year. Mr. Rathod is stepping down due to conflict of interest given his close ties to the Bakrie family.

Bumi's shares closed down 4.9% at 271 pence a share on Wednesday.

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

Subscribe to WSJ: http://online.wsj.com?mod=djnwires