97 General Principles Good Corporate Governance Principles Directors’ Code of Business Ethics Appendix Code of Business Ethics Anti-Corruption Electricity Generating Public Company Limited 4. Disclosure and Insider Information EGCO prioritizes non-disclosure and insider information according to its policy and guideline to safeguard against information that may have significant influence over shareholder’s decision or impacting EGCO’s business operations, from leakage or exploitation for personal gains, and to make sure stakeholders have access to decision-making information on equal footing. The Personnel therefore must take precaution in data protection and proper use of EGCO’s business information. The Company establishes the following guideline for EGCO Personnel: 4.1 Protect confidential information and appoint authorized custodian of this information, and do not disclose such information to individuals not involved in the work, except in case of legally required disclosure, or with permission of data owner. 4.2 Observe non-disclosure of two years after departure from EGCO. Employees subject to confidentiality agreements during service with EGCO must comply with non-disclosure period required by those agreements. 4.3 Use data and information insofar as required to carry out the duty and responsibility of one’s assignment. 4.4 Do not share with others information proprietary to one’s performance of duty, or misuse such as for securities trading, or harming EGCO’s interest directly or indirectly. 4.5 The Personnel with knowledge or access to insider information must not trade nor sell EGCO shares within a period of 45 days prior to disclosure and 24 hours after disclosure. For other data with significant implication, the Personnel privy to such data and information must not buy or sell EGCO shares from the date of knowing such information and 24 hours after disclosure to the Stock Exchange of Thailand. In case of Directors, SEVPs, EVPs, SVP under the Accounting and Finance Group, SVP-Investor Relations, SVP-Corporate Communications and Corporate Secretary, plus
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