"TRANSLATION"

RH 411/2012

9th August 2012
Subject: Notification of the Power Purchase Agreement of Songkhla Biomass Power Plant Project
Attention: The President of the Stock Exchange of Thailand
Reference: 1. Letter No. RH 431/2011 dated 9th September 2011 entitled "The Investment in
Songkhla Biomass Power Plant Project"
2. Letter No. RH 530/2011 dated 9th November 2011 entitled "Changes of the Shareholders
Structure of Songkhla Biomass Power Plant Project"
Reference is made to the above notifications that Ratchaburi Electricity Generating Holding Public Company Limited ("the Company") informed the Stock Exchange of Thailand ("the SET") regarding its investment in Songkhla Biomass Company Limited 40 per cent stakes of which held by the Company. The Company would like to inform the SET that on 18th July 2012, Songkhla Biomass Power Plant Project has signed the Non-Firm Power Purchase Agreement ("PPA") for
very small power producer with the Provincial Electricity Authority. The PPA lasts for 25 years since the plant's commercial operation date.
The Songkhla Biomass Power Plant Project has 9.9 megawatts electricity generating capacity. It is located in Chana District, Songkhla Province and has been awarded with 7-year subsidy of Baht
1.30 per unit adder from the Power Department Fund Management Division, Office of the Energy Regulatory Commission. The Project uses rubber wood residues as primary fuel in accordance with the government policy regarding the promotion of renewable energy. The shareholders comprise Ratchaburi Electricity Generating Holding Public Company Limited (40 per cent stakes), Precise Power Producer Company Limited (40 per cent stakes) and Assiddeek Savings Cooperative Ltd. (20 per cent stakes). The commercial operations are scheduled in 2014.
Please be informed accordingly and kindly disseminate the information herein to investors. Sincerely yours,
(Mr. Noppol Milinthanggoon) Chief Executive Officer

Corporate Secretary Office

Tel. 66(0) 2794 9510

66(0) 2794 9515-6

Fax. 66(0) 2794 9929

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