The Board of Directors is well aware of its roles, duties and responsibilities for directing the Company's operation, monitoring the Management's operation, performing duties with knowledge, competence, transparency, due care and accountability for the Company and its shareholders and being independent of the Management. Here are the key guidelines on the Board's operations:

Board Composition

1. The Board of Directors determines the board composition that fits with the Company's business size, whereby it is set to be composed of at least 5 members, not less than 1/2 of the directors must reside in Thailand and at least one of whom must be experienced in accounting and finance field.
2. Of the total number of board members, at least 1/3 and no fewer than 3 persons must be independent directors.
3. The Board of Directors must be partially composed of non-executive directors so as to ensure checks and balances against the executive directors and a minimum of 1/3 of the total board members must be independent directors.

Qualifications of Directors

The Company has specified qualifications of the Board of Directors as follows:

1. Meeting the qualifications and not possessing the prohibited characteristics prescribed in the Public Limited Companies Act B.E. 2535 or other related laws, as well as the regulations of the SET and the SEC and the Company's Articles of Association.
2. Being an expert with knowledge, capability and experience that are beneficial to the Company's operation.
3. Having a leadership skill, vision and independent decision-making ability to ensure the maximum benefit to the Company and the shareholders.
4. Being responsible to serve as the director and able to spare full time to perform the duty, assuming accountability to shareholders and duty of care and protecting the Company's interests.
5. Performing duties with integrity, honesty, ethics and adherence to laws, good corporate governance principles and code of business conduct.

Qualifications of Independent Directors

According to the Board of Directors Meeting No.7/2011, the Meeting had a resolution to acknowledge the qualification of Independent Directors comply with requirements stipulated by the SEC and the SET. Therefore, the qualification of Company's Independent Directors shall be as in the followings:

1. Holding shares of not exceeding 1% of total voting shares of the Company, its parent company, its subsidiaries, its associated companies, its major shareholders, or its controlling persons, including shares held by related parties.
2. Not being or have ever been an executive director, employee, staff, corporate advisor receiving a regular salary, or a controlling person of the Company, its parent company, its subsidiaries, its associated companies, its same-level subsidiaries, its major shareholders, or its controlling persons unless the foregoing status has ended for more than 2 years prior to being appointed as Independent Director. Such prohibitions exclude government officer or advisor to any government agency who is major shareholder or controlling person of the Company.
3. Not being a person related by blood line or by law in terms of father, mother, spouse, sibling and child, including spouse of the children, of other directors, management, major shareholders, controlling persons, or persons to be nominated as directors, management or controlling persons of the Company or its subsidiaries.
4. Not being or have ever been an auditor of the Company, its parent company, its subsidiaries, its associated companies, its major shareholders, or its controlling persons and is not a significant shareholder, a controlling person, or a partner of an audit firm which employs auditors of the Company, its parent company, its subsidiaries, its associated companies, its major shareholders, or its controlling persons unless the foregoing relationship has ended for more than 2 years prior to being appointed as Independent Director.
5. Not being or have had a business relationship with the Company, its parent company, its subsidiaries, its associated companies, its major shareholders, or its controlling persons, in the manner that may interfere with his/her independent judgement, or is not or has not ever been a significant shareholder or a controlling person of any person having business relationship with the Company, its parent company, its subsidiaries, its associated companies, its major shareholders, or its controlling persons unless the foregoing relationship has ended for more than 2 years prior to being appointed as Independent Director. The term "business relationship" aforementioned includes any normal business transaction, rental or lease of immovable property, transaction relating to assets or services, grant or receipt of financial assistance through receiving or extending loans, guarantee, providing assets as collateral, including any other similar actions which result in the Company or his counterparty being subject to indebtedness payable to the other party in the amount of 3% or more of the net tangible assets of the Company or 20 million baht or more, whichever is lower.
6. Not being or have ever been any professional advisor including legal or financial advisor who receives an annual service fee exceeding 2 million baht from the Company, its parent company, its subsidiaries, its associated companies, its major shareholders, or its controlling persons and is not a significant shareholder, a controlling person, or a partner of the professional advisor unless the foregoing relationship has ended for more than 2 years prior to being appointed as Independent Director.
7. Not being a director representing Board member of the Company's, its major shareholders, or a shareholder who is related to the Company's major shareholders.
8. Does not own/run any business similar to or material competing with the Company or its subsidiaries, or not being a significant partner in any partnership, executive director, employee, staff, advisor receiving regular salary, or holds more than 1% of total voting shares of the company similar to or material competing with the Company or its subsidiaries.
9. Have no any other characteristics which make him/her incapable of expressing independent opinions with regard to the Company's business.
10. After being appointed, Independent Director may be authorized by the Board of Directors to make a collective decision to execute business of the Company, its parent company, its subsidiaries, its associated companies, its same-level subsidiaries, its major shareholders, or its controlling persons

Any person being appointed as Independent Director of the Company may be a person who has or has had a business relationship, or may be a professional advisor receiving amount exceeding those specified in item 5 or 6 in case the Board of Directors has duly considered that relationship will not affect the ability to perform duties and express independent opinions.

Terms of service of Director

Directors shall hold the terms as stipulated in the Public Limited Companies Act B.E. 2535 and the Company's Articles of Association, which reads "At each annual general meeting of shareholders, 1/3 of the directors, or if the number is not a multiple of 3, then the number nearest to 1/3, must retire from office. The directors who have been the longest in office shall retire first. The retiring directors may be re-elected." The Nomination and Remuneration Committee will select and nominate qualified persons to be directors to the Board of Directors before seeking approval from the shareholders' meeting.

The Board of Directors has stipulated that members of the Audit Committee, Nomination and Remuneration Committee, Risk Management Committee and Corporate Governance and Ethics Committee shall each have a term of 3 years and may be re-appointed as deemed fit by the Board of Directors.

New Director Orientation

The Board of Directors recognizes the importance of new director orientation and had adopted a policy and method on this matter as follows:

1. The Board of Directors has stipulated that all incoming directors must attend an orientation program. The Company Secretary is assigned to provide them with documents and information relevant to the directors' duties such as Directors Guidelines, Corporate Governance and Ethics Manual, Articles of Association, Capital Structure, Shareholder Structure, Operating Results, Related Laws, Best Practices for Directors, relevant rules and regulations, director training courses and other information pertaining to the Company's business in order to enhance the new directors' knowledge and understanding of the Company's operations in all respects.
2. Office of Corporate Secretary shall arrange new company's directors a company visit together with company presentation to create their better understanding about the Company's business operation.

Director Development

The Board of Directors encourages, supports and provides convenience for all parties concerned with the Company’s corporate governance processes such as directors, sub-committee members, management, Company Secretary, Investor Relations Department, Accounting Department, etc. to participate in training and seminar programs or activities arranged by Thai Institute of Directors (IOD), the SET, the SEC, Thai Listed Companies Association, Thai Investors Association or other independent organizations on a regular and continuous basis in a bid to enhance their knowledge and operational efficiency. The Board of Directors has assigned the Company Secretary to coordinate with the directors and management and inform them of details about the said training courses.

As of December 31, 2016, the Board of Directors and sub-committees attending courses organized by IOD and by other institutions, as tabulated below:

Board of Directors' Meetings

The Board of Directors announced the Board meeting's schedule in advance for 1 entire year, to the directors and the relevant parties, requiring that a regular meeting be arranged at least once every quarter (4 times a year), with a special session meeting allowed to be convened as deemed necessary. Agenda items are also pre-determined and are clearly divided into categories such as issues for information, issues for approval and issues for consideration.

The Company screens the proposed items to make certain that all crucial issues are included in the agenda, whereas all board members are entitled to propose agenda items independently. The Company Secretary submits an invitation letter complete with the meeting agenda and accompanied by related documents to all board members at least 7 days ahead of the meeting date to allow the board members sufficient time to consider the issues. Where it is deemed essential or urgent, the meeting request can be notified by other method or the meeting can be arranged sooner. A meeting usually takes 1-2 hours. The Company Secretary takes the minutes of the meeting.

To promote the Board of Directors' performance, the Office of Corporate Secretary determined criteria and forms for the completeness, adequacy and suitability of information submitted to the Board of Directors, aiming to enable the Board of Directors' meetings to proceed smoothly, quickly and efficiently, in accordance with relevant laws and regulations, for all units concerned to use as reference and standards in preparing information before submitting to the Office of Corporate Secretary for compiling as a proposal to each Board of Directors' meeting.

In each meeting, the Chairman allows each director to express his/her opinions freely and allocates time appropriately and efficiently. In case of a director having a stake in a matter being considered, the director shall inform the meeting of such stake and shall not participate in discussing the matter and not exercise the voting right on the matter. At least 2/3 of the total number of directors shall be presented to form a quorum at the time of the Board passing a resolution.

The Board of Directors has a policy to encourage each board member to attend the board meeting consistently, with an average participation of at least 80% of total number of board meetings held in each year. The total number of meetings held and attendance by each member of the Board of Directors and board committees are disclosed in the Company's annual registration statement (Form 56-1) and annual report.

Besides, the Board of Directors has a policy to encourage non-executive directors, independent directors and members of the Audit Committee to hold meetings among themselves as deemed fit in order to discuss about any crucial management issues without the presence of the management. In 2016, the Audit Committee members, held 1 meeting with the external auditor without the presence of the management on February 26^th, 2016