LONDON (Reuters) - Two fund management firms have joined an investor revolt against the planned 1.8 billion pound takeover of Britain's Millennium & Copthorne Hotels (M&C) (>> Millennium & Copthorne Hotels plc) by City Developments Limited (CDL) (>> City Developments Limited), its majority shareholder.

International Value Advisers (IVA) and MSD Partners, which own 7 percent and 1.9 percent respectively of London-listed M&C, have sent a letter to the hotel company's independent directors to criticise them for supporting the 552.5 pence per share takeover proposal from Singapore's CDL, which is part of billionaire Kwek Leng Beng's Hong Leong Group.

They join Aberdeen Standard Investments and Fidelity International, two other minority shareholders reportedly unhappy with the terms of the deal.

CDL, which already owns 65.2 percent of the hotelier, and the independent directors announced the possible deal on Oct. 9, when the directors said they unanimously intended to recommend the bid.

"If the CDL proposal is implemented, M&C shareholders would, under your stewardship and the advice of Credit Suisse, be asked to approve massive value destruction of a company with a premium London Stock Exchange listing," said the Oct. 17 letter signed by Charles de Vaulx of IVA and Jonathan Esfandi of MSD and reviewed by Reuters. "This is not acceptable."

Swiss bank Credit Suisse (>> Credit Suisse Group) is corporate broker and adviser to M&C and advised the independent directors.

M&C has 130 hotels across the world including in London and New York. CDL is aiming to buy the 34.8 percent of the hotelier it does not own for 624.3 million pounds, valuing the company as a whole at about 1.8 billion pounds.

The CDL proposal implies a 32.5 percent discount to M&C's 820 pence per share balance sheet net asset value at the end of June, according to the letter.

"Furthermore, we believe the current value of the assets, in existing use, is significantly higher than book value, as the figure used for the vast majority of the hotels is at 2003 valuations," the letter said.

IVA and MSD said in the letter they "will, on advice, be exploring all potential options available to us in order to protect our interests."

They added a valuation of the hotelier's property portfolio should be carried out to help minority investors assess the CDL proposal.

M&C could not be reached for comment out of regular business hours.

(Editing by Mark Potter)

By Ben Martin