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To be a leading value-oriented integrated energy company in Asia-Pacific

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Thailand Sustainability Investment (THSI) 2016 program and received SET Sustainability Awards 2016

For 2016 Sustainability Assessment organized by the Stock Exchange of Thailand’s sustainability, the company categorized in the group, with market capitalization between 30-100 billion baht was listed on Thailand Sustainability Investment (THSI) 2016 program and received SET Sustainability Awards 2016. RATCH’s score totaled 88 out of 100, higher than the group’s average score of 79.

Sustainability Report Award 2016

The company received the Outstanding Sustainability Report Award 2016 from the CSR Club, Thai Listed Companies Association, in cooperation with the Securities and Exchange Commission and Thaipat Institute, for the four consecutive years.

Investors’ Choice Award 2016

The company received the Investors’ Choice Award 2016 for eight consecutive years (2009-2016) due to its 100 full scores in the quality assessment of the annual general shareholder meeting. This award was organized by the Thai Investors Association.

The company was rated “Excellent” at the Corporate Governance Report of Thai Listed Companies 2016

The company was rated “Excellent” with average score of 93 at the Corporate Governance Report of Thai Listed Companies 2016

The company received 100 full scores at the Thai Investors Association’s quality assessment of shareholders’ annual general meeting

The company received 100 full scores at the Thai Investors Association’s quality assessment of shareholders’ annual general meeting arrangement for the eight consecutive years.

Ratchaburi Electricity Generating Company Limited received the Social Responsibility and Sustainability Plant Award 2016 (CSR-DIW Continuous)

Ratchaburi Electricity Generating Company Limited received the Social Responsibility and Sustainability Plant Award 2016 (CSR-DIW Continuous) from the Department of Industrial Works.

Ratchaburi Electricity Generating Company Limited was rated Excellence in Labor Relations and Welfare Award

Ratchaburi Electricity Generating Company Limited was rated Excellence in Labor Relations and Welfare Award for five consecutive years (2012 - 2016) in the “small enterprise without labor union” category from Ministry of Labour.

Ratchaburi Electricity Generating Company Limited received the Drug-Free Organization Certification 2016

Ratchaburi Electricity Generating Company Limited received the Drug-Free Organization Certification 2016 from the Ratchaburi Provincial Labor Welfare and Protection Office.

Ratchaburi Electricity Generating Company Limited received the Silver plague from the zero-accident campaign 2016

Ratchaburi Electricity Generating Company Limited received the Silver plague from the zero-accident campaign 2016 organized by the Ministry of Labour.

Ratchaburi Electricity Generating Company Limited received the Outstanding Corporate in Occupational Safety, Health and Workplace Environment 2016

Ratchaburi Electricity Generating Company Limited received the Outstanding Corporate in Occupational Safety, Health and Workplace Environment 2016, which was “the 1-4 consecutive year National Level-Gold award.”

Ratchaburi Electricity Generating Company Limited received the Global Warming Reduction Certification 2016

Ratchaburi Electricity Generating Company Limited received the Global Warming Reduction Certification 2016 from the Thailand Greenhouse Gas Management Organization Ratchaburi Power Company Limited.

Ratchaburi Power Company Limited received the Outstanding Corporate in Occupational Safety, Health and Workplace Environment 2016

Ratchaburi Power Company Limited received the Outstanding Corporate in Occupational Safety, Health and Workplace Environment 2016, which was “the 1-4 consecutive year National Level-Gold award”

Ratchaburi Power Company Limited received the Silver plague from the zero-accident campaign 2016

Ratchaburi Power Company Limited received the Silver plague from the zero-accident campaign 2016 from the Ministry of Labour.

RATCH Group won EIA Monitoring Awards 2016

RATCH Group won EIA Monitoring Awards 2016. the awarded operations are listed below:

Membership Certification from Thailand’s Private Sector Collective Action Coalition against Corruption Council

The company received the Membership Certification from Thailand’s Private Sector Collective Action Coalition against Corruption Council on 22 April 2016.

Green Office, Gold Award

The Company’s Green Office Project was evaluated as excellent and granted a Gold Award from the Department of Environmental Quality Promotion and the Faculty of Environment and Resource Studies, Mahidol University.

Outstanding Corporate improvement Governance Award – Central Region, 2015

The company received Outstanding Corporate improvement Governance Award – Central Region, 2015 organized by Office of the National Anti-Corruption Commission (NACC), Thai Chamber of Commerce, and University of the Thai Chamber of Commerce. This award represents the mechanism echoing the progress on development of RATCH’s anti-corruption for further improvement

Result of Sustainability Development Assessment

Thaipat Institute announced RATCH was ranked 3A level for sustainability development assessment, with anti-corruption progress indicator. This assessment encourages a company to create a guideline to upgrade and develop their anti-corruption disclosure.

ASEAN CG Scorecard 2013-2014

ASEAN CG Scorecard is to assess and rank corporate governance performances of listed companies of participating ASEAN member countries organized by ASEAN Capital Market Forum (ACMF), which consists of capital market regulators from each ASEAN country. This award is to provide investors with corporate governance information for their investment decision-making processes, and to encourage listed companies to recognize the significance of complying with CG principles. ASEAN CG Scorecard is considered the mean criteria in raising the standards of corporate governance among listed companies and in promoting quality investment in the ASEAN region, and to select the TOP 100 listed companies with the highest market capitalization as of April 30 each year.

Thailand Sustainable Investment

RATCH received Thailand Sustainable Investment (THSI) award as one of 51 listed companies answering the Stock Exchange of Thailand’s sustainability-related questionnaire, with the score that is on par with the ESG (Environment, Social, and Governance) indicators. THSI award was firstly given to qualified companies this year in order to upgrade Thai listed company’s sustainability to meet the international standards.

Board of the Year – Excellent and Audit Committee of the Year

RATCH’s Board of Directors received Board of the Year – Excellent and RATCH’s Audit Committee was praised as Audit Committee of the Year from Thai Institute of Directors, the Stock Exchange of Thailand, Thai Chamber of Commerce, The Federation of Thai Industries, The Thai Bankers’ Association (TBA), the Thai Listed Companies Association, and The Federation of Thai Capital Market Organization (FETCO). The objective of this award is to recognize and promote quality and efficient Boards. The assessment covered 1. Board Policy 2. Board Performance 3. Board Structure 4. Board Style 5. Board Meeting 6. Board Members.

The highest AGM Level : 5 by AGM Quality Assessment Project

Based son AGM Quality Assessment Project organized by Thai Investors Association, RATCH’s 2015 AGM was rated at the level 5. The objective of this project is to enhance the quality of AGMs of Thai listed companies to match international standards on participation, shareholders’ rights and good governance in business conduct, and to raise awareness of shareholders of the benefit of attending the AGM and forge collaboration and good relations among related agencies in the capital market.

CG scoring 91% - Excellent level by Corporate Governance Report of Thai Listed Companies (CGR)

The company was praised at excellent level, with CG Scoring of 91% by Corporate Governance Report of Thai Listed Companies (CGR) organized by Thai Institute of Directors Association (IOD). The objectives of this award are to present the results of corporate governance performance and to encourage the development and improvement of good corporate governance paradigm of Thai listed companies. The assessment criteria were based on the principles of good governance by the Organization for Economic Cooperation and Development (OECD Principles of Corporate Governance) and by the Stock Exchange of Thailand. There are 235 criteria in 1. Shareholders’ Rights 2. Shareholders’ Equitable Treatment 3. Stakeholders’ Roles 4. Disclosure and Transparency 5. Board Responsibilities

Certificate for Safe Workplace Operation in Honor of HRH Princess Maha Chakri Sirindhorn on her 60th birthday anniversary

RATCH took this certificate in recognition of its operation of a safe workplace. The objective of this award is to enhance workplace collaboration in preventing work accidents by workers. To win a certificate, employers are to lay down a work safety system strictly as required by the law to lower the probability of accidents or work-related diseases, mentor, and solve work-related problems and overcome obstacles

National Outstanding Workplace Award for Labour Relations and Welfare

Ratchaburi Electricity Generating Co., Ltd., won a special honorary award for its eight consecutive years (2008-2015) of winning the Ministry of Labour Award for Labour Relations and Welfare for a small workplace (50-299 workers) without a labour unions. RATCH passed the criteria for operating a business in compliance with the Labour Protection Act, B.E. 2541 (1998), and the Labour Relations Act, B.E. 2518 (1975), scoring 80 or more on both counts.

Bronze plaque in recognition of the Zero Accident campaign

For the second year running, RATCH won a bronze plaque thanks to its Zero Accident campaign for 2015, since RATCH had not faced any work-related accident from 1 million to 2.999999 million man-hours under this year’s campaign. The award presenter was the Director-General, Department of Labour Protection and Welfare. The ceremony took place at the Office of Labour Safety at the department.

CSR-DIW Continuous Award

RATCH won the CSR-DIW Continuous Award 2015 at the CSR-DIW (Corporate Social Responsibility Department of Industrial Works) Awards 2015 event, in recognition of RATCH’s achievement in relentlessly operating its business with dedication and commitment along with stewardship of society and communities toward sustainable growth. The award was established in 2008 by the department. To date, 630 plants nationwide have consistently applied CSR – DIW standards in their workplaces.

Supporters of the Royal Forest Department (Community Forest Promotion and Development) award

RATCH accepted an award recognizing its support to the work of the Royal Forest Department from the Minister of Natural Resources and Environment at a plaque and certificate presentation ceremony on the department’s 119th anniversary. Both ran a project called “60 Community Forests Conserve Plant Genetics under a Royal Initiative in Honor of HRH Princess Maha Chakri Sirindhorn” on her 60th birthday anniversary (April 2, 2015) and another project on the participatory investigation of carbon storage and biodiversity in community forests. Both projects are follow-ups from the “Love the Forest and Communities” Project.

Edison Electric Institute’s Asian Utility Award

RATCH earned an Edison Electric Institute’s (EEI) Asian Utility Award 2015 in the category of small capitalization, silver performance, security in recognition of its outstanding performance and regular shareholder returns for the past three years, with performance of an international level, excellent services delivered, and support for sustainable economic growth at national and regional levels.

ESG 100 Company

RATCH accepted an ESG 100 Company Certificate from the Director of Thaipat Institute as a listed company in the energy and utilities business category with outstanding environmental, social, and governance (ESG) performance. The evaluation and rating of the top 100 Thai listed companies with outstanding ESG performance (ESG 100), conducted by Thaipat Institute, was regarded as Thailand’s first such ranking of listed companies with sustainability development. A total of 567 SET-listed Thai companies were evaluated for their sustainability, based on their public reports or information which identifies sources and periods publicized. Such information will prove useful to investors who are keen to invest in socially and environmental responsible companies.

MEA Outstanding Energy Saving Building Award

RATCH building received the Logo of "MEA the Outstanding Energy Saving Building Award" under 2014 MEA Energy Saving Building Award Program which was organized for two consecutive years as RATCH conducted activities to improve energy efficiency in building and successfully implemented energy conservation measures to enhance energy efficiency for building, with energy saving outcome that met the criteria of MEA index. Also, the Company can save of energy of up to 571,000 units per year or equal to 1.9 million Baht per year, with the carbon dioxideemission reduction of more than 332 tons per year.

Outstanding” Information Presentation Award at 10th SET in the City organized by Stock Exchange of Thailand

The company was voted by 1,900 participants via questionnaires.

Excellent” Rating by Corporate Governance Report of Thai Listed Companies 2014 Program organized by Thai Institute of Directors (IOD)

The company’s score from Corporate Governance assessment of 87% was higher than 72% of mean score from 550 surveyed companies in total. Also, its scores in all categories were higher than the mean score. The survey criteria were in line with ASEAN CG Scorecard Standard.

2014 Outstanding Enterprise on Labour Relations and Welfare Award organized by Ministry of Labour

The company was recognized as an enterprise implementing fair labour practice and protection.

CSR-DIW Continuous Award 2014 organized by Department of Industrial Works

Ratchaburi Electricity Generating Co., Ltd. received this award for three consecutive years due to its compliance with CSR principle and commitment to green organization.

2014 Outstanding Award” for Natural Resource Conservation organized by Ministry of Natural Resources and Environment

RATCH was endorsed as a benefactor continuously supporting Royal Forest Department’s mission relating to natural resources, forest and environment conservation.

“Outstanding Award” for Energy Business under EIA Monitoring Award 2014 organized by Office of Natural Resources and Environmental Policy and Planning

3,645-MW Ratchaburi Power Plant, consisting of 2,175-MW combined cycle power plant and 1,470-MW thermal power plant under the operation of Ratchaburi Electricity Generating Co., Ltd. received “Outstanding Award” for compliance with EIA Monitoring measures.

Outstanding Award” for Energy Business under EIA Monitoring Award 2014 organized by Office of Natural Resources and Environmental Policy and Planning

Fuel oil transmission system project for the Ratchaburi Thermal Power Plant, unit 1 and 2 under the operation of Ratchaburi Electricity Generating Co., Ltd., received “Outstanding Award” for energy project as its operation was in line with EIA monitoring measures and outstanding environmental management performance.

Excellent Award” for Energy Project, under EIA Monitoring Award 2014 organized by Office of Natural Resources and Environmental Policy and Planning

700-MW Tri Energy Power Plant under the operation of Ratchaburi Electricity Generating Co., Ltd., received “Excellent Award” for enterprise in the category of energy business as its operation was in line with requirements of EIA monitoring measures and outstanding environmental management performance.

Complementary Award” in Category of Community Service and Housing under EIA Monitoring Award 2014 organized by Office of Natural Resources and Environmental Policy and Planning

RATCH office building was recognized as an enterprise in category of community service and housing that complied with EIA monitoring measures and outstanding environmental management performance.

A trophy on the occasion of the 150th Anniversary of the Birth of Her Majesty Queen Saovabha Phongsri

The Company received a trophy as being a benefactor from Her Royal Highness Princess Soamsawali at the Phya Thai Palace on the occasion of the 150th Anniversary of the Birth of Her Majesty Queen Saovabha Phongsri. This event was organized by Rajini Foundation, in collaboration with the Committee of the 150th Anniversary of the Birth of Her Majesty Queen Saovabha Phongsri.

A trophy on 2014 National Day of Disabled Persons

The Company received a trophy from Her Royal Highness Princess Soamsawali as being the benefactor supporting and assisting the arrangement of 2014 National Day of Disabled Persons organized by the National Council on Social Welfare of Thailand under Royal Patronage.

100 Full Score from 2014 AGM Assessment

The Company’s 2014 Annual General Meeting of Shareholders was assessed by Thai Investors Association and received 100 full score.

Thai Listed Companies’ Corporate Governance Assessment Program based on 2013/14 ASEAN CG Scorecard

The company’s average score of 87.65 or 61.73% regarded as “Excellent” at four-star level was higher than mean score of other 529 listed ASEAN companies, with score of 64.02 or 45.21% and was also higher than the mean score of other 100 listed Thai companies, with the score of 75.39 or 53.09%.

Honor Plaque as the Private Organization Supporting Royal Forest Department’s Operation in the Category of Community Forest Promotion and Development

The company and Royal Forest Department have been joining hands to encourage communities to maintain the community forest under the “Love the Forest and the Community Project” implemented since 2008 with an aim to enhance the green areas for storing CO2 and mitigating global warming problems.

Benefactor of Children and Youth Award, in the Category of Natural Resource and Environmental Protection organized by Office of Promotion and Protection of Children, Youth, the Elderly and Vulnerable Groups, Ministry of Social Development and Human Security

The company received this award due to ‘Klayim’ Youth Camp under the ‘Love the Forest and the Community Project’ that has been annually organizing since 2008. This project focuses on building awareness of forest conservation among the youth from community forests nationwide.

Awarded “MEA Outstanding Energy Saving Building” Emblem under Energy Saving Building Award 2014 Program

Organized for two consecutive years, RATCH conducted energy efficiency improvement in the office building and successfully implemented in line with the criteria of MEA index. The company can save up to 571,000 kWh/year or equal cost saving of 2 million baht per year, and the carbon dioxide emission reduction of more than 332 tons per year.

Silver” Award under the Green Office Project organized by Department of Environmental Quality Promotion

The company’s operation was on par with 7 standards of Green Office Project, including organizational management, energy and resource efficiency, wastewater management, decent workplace environment, procurement and continuous improvement.

“Outstanding” Sustainability Report Award organized by Thai Listed Companies Association

The company received “Outstanding” Sustainability Report Award for two consecutive years due to its accuracy and completeness information related to environmental, social and governance (ESG) disclosed in the sustainable report.

2014 Investors’ Choice Award” organized by Thai Investors Association

The company’s 2014 Annual General Meeting of Shareholders received 100 full scores for six consecutive years (2009-2014).

RG RECEIVED RATSADAKORNPIPAT AWARD (TAXPAYER RECOGNITION AWARD 2013) FOR THE SECOND CONSECUTIVE YEAR.

The award was granted to a tax payer that demonstrated its ability to be a good citizen, made good contribution to the country and be a role model for others in terms of instilling tax paying responsibility and inspiring others to pay tax according to the good governance principle.

RG RECEIVED CSR-DIW CONTINUOUS AWARDS 2013 AND CSR-DIW ADVANCE AWARD LEVEL 4 2013

from the Department of Industrial Works for its outstanding social responsibility performance. These awards are granted in recognition of entrepreneurs who have strong commitment to social responsibility and green culture.

RG WAS GRANTED OHSAS 18001:2007 CERTIFICATION RENEWAL

from Det Norske Veritas (Thailand) Company Limited --an assessment agency that issues a document to certify entrepreneur's awareness and commitment to occupational health and safety and to reducing risk in all work process.

THE SUSTAINABILITY REPORT AWARD 2013 IN "OUTSTANDING" CATEGORY

This award was organized by the Securities and Exchange Commission (SEC), Thai Listed Companies Association, CSR Club and Thai Pat Institute. The objective of the award is to encourage listed companies to distribute information about environmental, social and governance (ESG) activities. Key criteria for award decision includes three major factors which are completeness of the report, covering essence, consideration on all stakeholders, strategies, and corporate context; credibility covering operational process, consideration of all stakeholders, governance, performance, and audit; and communication including presentation, consideration of all stakeholders and structure of the report.

RATCH BUILDING— THE COMPANY'S NEW HEAD OFFICE ON NGAMWONGWAN ROAD— GRANTED THE "MEA ENERGY SAVING BUILDING EMBLEM"

by the Metropolitan Electricity Authority (MEA), aiming at educating and raising awareness of building owners on the importance of energy saving efficiency. Buildings that have implemented such measures and pass MEA Index, which is a ratio between actual and target electricity consumption, will be granted such emblem.

2013 BEST INVESTOR RELATIONS

The Company received “2013 Best Investor Relations” award in the category of listed companies with over 50,000-million-Baht market capital, with 92.26 percent scoring.

THE COMPANY SCORED 93 PERCENT IN THE CORPORATE GOVERNANCE REPORT OF THAI LISTED COMPANIES 2013

which was higher than the average scoring of 78 per cent of all 526 companies surveyed.

THE COMPANY RATED "EXCELLENT" RATING

with 100 full score for the fifth consecutive year from the AGM assessment in 2013 organized by the Association of Thai Investors.

4RG RECEIVED EXCELLENT IN LABOR RELATIONS AND WELFARE AWARD 2013

from the Ministry of Labour for the sixth consecutive year.

THE "BEST SENIOR MANAGEMENT IR SUPPORT"

from a survey by Alpha Southeast Asia Magazine (Alpha Southeast Asia) for the year 2012 based on survey of 460 investors and pension funds, hedge funds, equity and fixed income brokers and analyst with investment interests in the Southeast Asia region. Companies in each country were ranked on their financial management, adherence to corporate governance and business strategy with Corporate Social Responsibility (CSR)'s strategy and investor relations, transparency and disclosure. ... Read more ...

RATCH RATED “EXCELLENT”

on Corporate Governance Report of Thai Listed Companies 2012 for fifth consecutive year and was categorized as the Top Quartile of listed company group, with marketing value of more than 10 billion Baht.

RATCH RATED "EXCELLENT"

in Annual General Meeting (AGM) Assessment 2012 organized by the Thai Investor Association. Ratchburi Electricity Generating Holding Public Company Limited (RATCH) obtained full scores (100 points) ... Read more ...

RG RECEIVED CSR-DIW AWARDS 2012, Group 1

from the Department of Industrial Works, Ministry of Industry. This award is regarded as the key project of the Department of Industrial Works and one of ten flagship projects of Ministry of Industry.

RG RATED “EXCELLENT” IN LABOR RELATIONS AND WELFARE AWARD 2012

from the Ministry of Labour for the fifth consecutive year.

THE COMPANY RECEIVED INVESTORS' CHOICE AWARD

from Thai Investors Association as the Company obtained full scores (100 points) in Annual General Meeting (AGM) Assessment for the fourth consecutive year (2009 - 2012).

THE COMPANY RECEIVED A PLAQUE IN RECOGNITION FOR ITS CONTRIBUTION TO CHILDREN AND YOUTH DEVELOPMENT FOR THE YEAR 2011

in the area of sports and recreation from the Ministry of Social Development and Human Security on the occasion of National Youth Day 2011 ... Read more ...

THE COMPANY RECEIVED “THE ASSET TRIPLE A COUNTRY AWARDS 2011 SOUTHEAST ASIA”

in Thailand in the category of “Best Deal” award from The Asset magazine’s customer and investors’ qualitative and quantitative survey. The award was granted based on the Company’s success in the acquisition of Transfield Services Infrastructure Fund in Australia, which is a significant investment expansion to Asia Pacific region and also increases the diversity of the Company’s investment. This also results in stronger cash flow. In addition, this investment is the biggest merger and acquisition in Thailand energy sectors ... Read more ...

THE COMPANY RATED “EXCELLENT”

at the Corporate Governance Report of Thai Listed Companies (CGR) 2011 for the fourth consecutive year. This award was arranged by Thai Institute of Directors (IOD) and the Security and Exchange Commission (SEC). ... Read more ...

RATCH RATED "EXCELLENT WITH DISTINCTIVE PRAISEWORTHINESS"

at the 2011 Annual General Meeting of Shareholders Assessment organized by the Thai Investor Association. RATCH obtained full scores (100 points). ... Read more ...

NACC INTEGRITY AWARDS 2010

From: The National Anti-Corruption Commission (NACC) Date: 10 Nov 2010

THE HONOR CERTIFICATE AS THE PRIVATE ORGANIZATION CONTINUALLY SUPPORTING ROYAL FOREST DEPARTMENT IN REFORESTATION AND FORESTRY DEVELOPMENT

From: Royal Forest Department, Ministry of Natural Resources and Environment Date: 18 September 2010

THE OUTSTANDING ENTERPRISE ON LABOUR RELATIONS AND LABOR WELFARE 2010

From: Department of Labour Protection and Welfare Date: August 27, 2010 Our subsidiary company, Ratchaburi Electricity Generating Company Limited, has honorably bestowed the valuable award for 3 consecutive years

THE OUTSTANDING CONTRIBUTION TO MINISTRY OF NATURAL RESOURCES AND ENVIRONMENT 2010

From: Ministry of Natural Resources and Environment Date: June 5, 2010

SET AWARD 2009 IN CATEGORY OF THE TOP CORPORATE GOVERNANCE REPORT

The Company received the SET Award 2009 in category of the Top Corporate Governance Report. The award, which was organized by the Stock Exchange of Thailand (SET), lauded the Company as an outstanding listed firm for its compliance with the principles of good corporate governance.

RATCH GRANTED THE AWARD FOR “OUTSTANDING CONSERVATION OF BIOLOGICAL DIVERSITY IN ASPECT OF SUPPORTING AND PROMOTING SECTOR ENGAGEMENT” DUE TO LOVE THE FOREST AND THE COMMUNITY PROGRAM

Ratchaburi Electricity Generating Holding Public Company Limited (RATCH) was granted the award for “Outstanding Conservation of Biological Diversity in Aspect of Supporting and Promoting Sector Engagement” on May 25, 2009 by the Office of Natural Resources and Environmental Policy and Planning, Ministry of Natural Resources and Environment. The award is regarded as achievement of the 5-year program of ‘Love the Forest and the Community’ that was jointly arranged by the Royal Forest Department and the Company. Its goal is to encourage conservation awareness on biological diversity of the forest and to strengthen community network to protect the forest for sustainability development.

RATCH RATED “EXCELLENCE WITH DISTINCTIVE PRAISEWORTHINESS” WITH 100 FULL SCORES FROM AGM ASSESSMENT

Ratchaburi Electricity Generation Holding Public Company Limited (RATCH) was assessed with 100 full scores and rated “Excellence with Distinctive Praiseworthiness” in the 2009 Annual General Meeting of Shareholders’ Assessment Scheme organized by the Thai Investors Association. Ratchaburi Electricity Generating Holding Public Company Limited was one of 41 companies being assessed with 100 full scores and rated “Excellence with Distinctive Praiseworthiness” among the entire 497 listed companies participating in the 2009 AGM assessment organized by the Thai Investors Association.

RATCHBURI POWER POWER PLANT RECEIVED GOLDEN AWARD OF MOST INNOVATION POWER TECHNOLOGY OF THE YEAR FROM ASIAN POWER

The Ratchaburi Power Power Plant, a 25-percent own subsidiary of Ratchaburi Electricity Generating Holding Public Company Limited (RATCH) received Golden Award of Most Innovation Power Technology of the Year from Asia Power Magazine. The award ceremony was held on October 22, 2008 at Kuala Lumpur, Malaysia. October 22, 2008

TRI ENERGY POWER PLANT RECEIVED SILVER MEDAL WINNER IN THE OPERATION AND MAINTENANCE CATEGORY OF THE 2008 ASIAN POWER AWARD COMPETITION FROM GE ENERGY

Tri Energy Power Plant, a 50-percent own subsidiary of Ratchaburi Electricity Generating Holding Public Company Limited (RATCH) received Silver Medal winner in the Operation and Maintenance Category of the 2008 Asian Power Award Competition from GE Energy. This award reflected its environment operation and management that was better than the standard specified by the government authorities. This effort will also help reduce pollution caused by industrial emission

RATCH RATED TOP TEN COMPANY HAVING EXCELLENT CSR INFORMATION DISCLOSURE BY CSR ASIA IN COLLABORATION WITH AIT

Ratchaburi Electricity Generation Holding Public Company Limited (RATCH) was ranked seventh among companies in Thailand and thirty-third among listed companies in Asia for its excellent performance in CSR information disclosure. This award is based on the transparency and adequacy of CSR disclosure. The award in this year were arranged by CSR Asia— a provider of advisory, research and training services relating to sustainable business practices in Asia—in collaboration with Asian Institution of Technology (AIT).

RATCH RECEIVED AN HONOR CERTIFICATE FROM ROYAL FOREST DEPARTMENT

On September 17, 2008, Mrs. Anongwan Thepsuthin, Minister of Natural Resources and Environment, gave an honor certificate to Ratchaburi Electricity Generation Holding Public Company Limited (RATCH) for its contribution in assisting the Royal Forest Department’s business in reforestation and forestry development. September 17, 2008

BOARD OF THE YEAR OF DISTINCTIVE PRACTICES 2006/7

The Company’s Board of Directors received the “Board of the Year of Distinctive Practices 2006/7” held by the Institute of Directors (IOD) in cooperation with the Stock Exchange of Thailand (SET), Thai Chamber of Commerce, the Federation of Thai Industries, the Thai Bankers’ Association, the Listed Companies’ Association and the Federation of Thai Capital Market Organizations. The announcement was held on December 11, 2007. The award is to recognize and promote the Board of Directors of listed companies that effectively and efficiently perform their duties. The six key criteria for consideration are the board policy, board performance, board structure, board style, board meetings, and board members. The Company won such recognition for the second consecutive year after the 2005/2006 one. This also highlighted the Company’s continuous and serious commitment to the good corporate governance and ensured its systematic, transparent and verifiable management. December 11, 2007

RATCH RATED “EXCELLENT’ IN AGM ASSESSMENT

In August 2007, The Thai Investors Association and Thai Listed Companies Association jointly announced that Ratchaburi Electricity Generating Holding Public Company Limited (RATCH) was rated “Excellent” in the Annual General Meeting (AGM) Assessment in 2007. According to the assessment, RATCH was in the range of 90 points out of 100 points. The overall evaluation was 74 points and 91 points for the general listed companies category and the SET 50 index group category, respectively. There were 460 companies participating in the AGM assessment. According to the criteria, their accounting periods must end on December 31, 2006 and such companies must not be categorized in the Non-performing group (NPG). Regarding the evaluation level, there were 5 levels which were excellent, very good, good, fair and improvement needed. Each company would be evaluated from disclosure to the shareholders in all channels, the committee’s observation on shareholders’ meeting day and the Company’s AGM self-assessment submitted to the committee. August 2007

DISTINCTION IN MAINTAINING EXCELLENT CORPORATE GOVERNANCE REPORT AT SET AWARDS 2006

Ratchaburi Electricity Generating Holding Public Company Limited (RATCH) was one of the 16 companies winning the prestigious Distinction in Maintaining Excellence awards at the SET AWARDS 2006 organized by the Stock Exchange of Thailand (SET) in cooperation with Money & Banking magazine. The award aims at praising companies which have successfully maintained quality for good corporate governance report for second consecutive years.

RATCH RATED AT “EXCELLENT” FOR ITS CORPORATE GOVERNANCE REPORT

On October 27, 2006, the Thai Institute of Directors (IOD) in cooperation with the Stock Exchange of Thailand (SET) and the Office of the Securities and Exchange Commission (SEC) announced to the public the result of the evaluation of Corporate Governance Report of Thai Listed Companies 2006 and Ratchaburi Electricity Generating Holding Public Company Limited was rated at “Excellent” level. Only 9 companies were evaluated at “Excellent” level namely (according to alphabetical order of their short names in English) Banpu Public Company Limited (BANPU), Bangkok Bank Public Company Limited (BBL), Bangchak Petroleum Public Company Limited (BCP), Kasikornbank Public Company Limited (KBANK), Krung Thai Bank Public Company Limited (KTB), PTT Public Company Limited (PTT), PTT Exploration and Production Public Company Limited (PTTEP), Ratchaburi Electricity Generating Holding Public Company Limited (RATCH), and The Siam Commercial Bank Public Company Limited (SCB). The evaluation is classified into 5 levels: “Excellent”, “Very Good”, “Good”, “Satisfactory”, and “Pass”. The evaluation was made based on the information sources such as company annual report, annual registration statement (Form 56-1), notice and minutes of company’s shareholders meeting, company website, information on SET/SEC database, and other publicly available information. The evaluation criteria were developed based on the following five core principles of corporate governance of the Organization for Economic Cooperation and Development (OECD) and the Stock Exchange of Thailand: 1) Rights of shareholders, 2) Equitable treatment of shareholders, 3) Role of stakeholders, 4) Disclosure and transparency, and 5) Board responsibilities. October 27, 2006

SET AWARD 2005 IN THE CATEGORY OF BEST CORPORATE GOVERNANCE REPORT

Ratchaburi Electricity Generating Holding Public Company Limited (RATCH) received the SET Award 2005 in the category of Best Governance Report organized by SET as the Company were appraised “outstanding” for its compliance with the SET’s corporate governance principle.

THE COMPANY WAS APPRAISED “OUTSTANDING” IN CORPORATE GOVERNANCE REPORT OF THAI LISTED COMPANY 2005

The Company was ranked among the top 10 of 1st Quartile (93 listed companies) according to the evaluation under the Corporate Governance Report of Thai Listed Companies 2005, which organized by the SET, the SEC and the Institute of Directors (IOD).

THE COMPANY’S BOARD OF DIRECTORS WAS BESTOWED THE BOARD OF THE YEAR AWARD

The Board of Directors of the Company was awarded “the Board of the Year Award 2004/2005” from the Institute of Directors (IOD) in an event co-organized with the SET, the Thai Chamber of Commerce, the Federation of Thai Industries, the Thai Bankers Association and the Association of Listed Companies. The award was given on the basis of the Board of Directors’ policy, its structure, practices, relationship between internal departments and the public, preparation of meetings and the Board of Directors’ leadership.

THE COMPANY STANDING AT 218TH ENERGY COMPANY IN THE WORLD FOR THE ROBUST FINANCIAL PERFORMANCE

In December 2005, Platts, the world’s leading energy information service provider, announced its recognition of outstanding financial and industry performance of the company in the Top 250 Global Energy Company Rankings. The ranking measured companies’ financial performance based on 5 criteria: total asset, income, profit, Earnings Per Share (EPS) and Return on Invested Capital (ROIC). The Company was ranked 218th out of 250 top energy companies and was one of the only three Thai energy firms awarded Platts 250 Top Global Energy Company Rankings.

SET Award 2003 Best Corporate Governance Report

SET Award 2003 Best Corporate Governance Report The Company received the SET Award 2003 in category of Best Corporate Governance Report. This award was given to listed companies with outstanding performance for complete compliance with 15 issues of good corporate governance as prescribed by the SET based on the consideration of the Annual Registration Statements (Form 56-1), the Annual Report (Form 56-2), notice of a meeting and minutes of the shareholders’ meeting. The award was given by Prime Minister Thaksin Shinawatra on July 21, 2003. July 21, 2003

Disclosure Report Award 2003

The Company received the Disclosure Report Award 2003 for listed companies with an excellent information disclosure system from the SEC for second consecutive year based on the consideration of the Company’s disclosure in its 2002 Annual Registration Statements (Form 56-1) which provided clear and sufficient information to investors and enabled them to assess important risks by reviewing 5 principal topics namely: 1. Executive Summary 2.Nature of Business 3.Risk Factors 4.Transactions with Related Companies 5.Management Discussion and Analysis (MD&A) In addition, the Company also disclosed other relevant information in compliance with SEC’s Criteria which included the 2002 financial statements that were prepared in accordance with accounting standards wherein an auditor did not express disclaimed opinions due to scope limitation by executives. Therefore, this award properly demonstrated the Company’s commitment in developing its good corporate governance principle to achieve extensive acceptance and reliability both domestically and internationally. November 19, 2003

"Top Quartile Companies" Corporate Governance For 2003

The Company was rated at "Top Quartile Companies" on its good corporate governance for the year 2003 under Baselining Corporate Governance Practices of Thai Listed Companies. The Company received this awards for third consecutive year. Thai Institute of Directors (IOD) organized this Project with the Stock Exchange of Thailand (SET), and the Securities and Exchange Commission (SEC).

ISO 14001 CERTIFICATION FOR ENVIRONMENTAL MANAGEMENT

Ratchaburi Electricity Generating Company Limited (RG) was awarded ISO 14001 certification for its environmental management from Det Norske Veritas (Thailand) Company Limited on July 31, 2003. ISO 14001 is the standard that was well accepted by industrial and environmental sectors domestically and internationally as it is an efficient tool that can measure the attention of power plants’ staff, conciseness of the operation, compliance with the measures of environmental impact management and control by the power plants.

“VERY GOOD” ON CORPORATE GOVERNANCE BY TRIS RATING

The Company was rated at the level of “Very Outstanding” by TRIS Rating at total score 8.02 from 10 which reflected its commitment on Good Corporate Governance.

The Third Best Corporate Governance in Asia

October 2002 issue of Asiamoney Magazine awarded the Company the third best corporate governance scores in the energy sector in Asia (the first ranking in the Thai energy sector).

Disclosure Award 2002

On November 5, 2002, the Company was given the Disclosure Award 2002 from the Securities and Exchange Commission (SEC) based on the disclosure of Form 56-1 from all listed companies on the Stock Exchange of Thailand.

The EIA Award 2002

Ratchaburi Power Plant was praised as an industrial site that complied with rules for environmental impact assessments and for good environmental management in 2002 (EIA Award 2002) from Office of Natural Resources and Environmental Policy and Planning.