Page 143 - 56-1 One Report 2022 EN

Part 2 Corporate Governance

14. Intellectual property rights

The intellectual property rights of the Company include various copyrights, patents, trademarks, and trade secrets
which are essential in keeping competitive advantages of the company. Directors, executives, and employees have
the duties to protect, keep and defend the rights of the company toward all intellectual properties, and to exercise
those rights with responsibility.

Besides, directors, executives, and employees must also respect the lawful rights of intellectual properties of others.
15. Use of inside Information and trading of Group’s securities

Directors, executives, and employees must not use, for the benefit of their own or others, inside information of the
Group which have important point and have not been disclosed to the public.

Directors, executives, and employees of the Company have the freedom in trading the securities of the Group but,
to prevent conflict of interest from happening, directors, executives, and staff to refrain from or stop trading the
securities of the Group for a period of 14 days before the disclosure of the financial budget to the public.

16. Giving information or interviews to the press or the public
Giving any information in relation to the Company must be on the basis of facts, and correctness and proceeded
with care.

Those who do not have relevant duties or receive assignments cannot give the information or interview to any press
or public in reference to Group in any way. This prohibited action can give rise to an undesirable impact on the
reputation and business operation of the Company.

17. Transactions between companies in Group
In case of inter-company transactions in the Group, the Group will follow the principles and steps in the
consideration for the approval process with the realization of maximum benefits for the company in essence and on
an arms’ length basis.
During 2022, the Company engaged in connected transactions. These transactions were carried out in accordance
with market-based pricing and commercially reasonable terms and conditions, and were necessary to support the
Company's operations. The transactions were executed fairly in accordance with the Company's policy on related
party transactions and in compliance with regulations set by the SEC and the SET.

18. Communication via social media
The Company believes in and promotes employees’ freedom to communicate creatively through social media.
However, directors, executives, and staff should avoid any problems and activities which could have negative
effects or consequences for both employees and the Company. The Social Media Guidelines should be strictly
observed.

The Code of Conduct Management and Compliance
1. Directors, executives, and employees must strictly comply with the Code of Conduct and immediately file a
report in case of coming across an act of non-compliance. The Company will, in reference to the Regulations
on Human Resources Management, take disciplinary action, in accordance with the nature of non-compliance

Part 2 page 20