A) DYH's Core Values
1. Compliance with the law and social, democratic values
DYH does not violate the law, offend social values or behave in a way that may negatively impact its reputation in society. DYH respects the democratic structure and the associated rules.
2. Focus on customers
The sole reason for DYH's existence is its customers, who purchase our books, advertise through our channels and use all sorts of goods and services we provide. It is our responsibility to understand and meet the customer expectations and in the end earn their appreciation.
3. Our actions earn us pride and respect
Every activity at DYH is evaluated on the basis of pride and respect, which are the most important of DYH's core values. Our reputation in society is our most valuable asset. Our relationships with each other also should earn the Group pride and respect.
4. Our operations create value for our shareholders
DYH operations are built upon economic realities and prudent management principles. The Group does not engage in operations that do not create economic value because we believe that non-economic activities harm our country, our society and our other core values in the long term.

B)  Practices Regarding Codes of Conduct
1. Responsibilities of the employees
All personnel at DYH and the Group companies working under an employment contract of definite or indefinite terms are subject to the DYH Code of Conduct. Subsidiaries of DYH and other Group affiliates commit to adopting and implementing similar rules.
2. Responsibilities of executives and leaders
Executives shall lead the efforts to regularly monitor matters related to direct reporting and compliance with the rules and set an example for all employees with their leadership and conduct. They are required to ensure that the employees understand that performance is never more important than complying with the corporate rules. The executives shall encourage employees to share their doubts about honesty and to ask any questions they may have.
3.Reporting
As DYH employees, one of our most important responsibilities is to report to the relevant office whenever we suspect a violation of DYH's Code of Conduct or the law.

C) Relationships with Customers and Suppliers
1. Inappropriate payments
DYH employees cannot offer, or allow to be offered, a valuable article (such as money, goods or services), directly or indirectly, to obtain an unfair advantage in the sale of goods and services, in financial transactions or during the representation of the Company interests in front of official bodies. DYH Group companies cannot consent to, participate in or tolerate any commercial practice that violates this policy.
2. International trade and business relations
In all countries where it conducts business, DYH complies with international trade regulations on matters such as licensing, delivery documents, import documents, notifications and maintenance of records.
3. Identification of customers
People engaged in criminal activities (e.g. illegal drug trafficking, bribery, forgery) may try to launder money to conceal or legitimize the proceeds from such criminal activity; DYH fully complies with the anti-laundering laws all over the world.
4. Protection of private and confidential information
In accordance with all applicable rules and regulations, DYH and its employees commit to protecting private information about individuals and corporations they conduct business with against any improper or unauthorized use and disclosure.
5. Relations with suppliers
DYH believes that relations with its suppliers usually impact its dealings with the customers as well as the quality of its own goods and services. Therefore, DYH commits to carrying out its relationships with the suppliers in an efficient, fair and legal manner.

D) Relations with Official Bodies
DYH commits to comply with all applicable laws and regulations in its business dealings with official bodies and observe the highest standards of business ethics.

E) Relations with Competitors
DYH commits to complying with competition laws, regulations and agreements in all of its activities.  
 
F) Environment and Health
DYH targets perfection on environmental and health issues. The management and all personnel are aware of their responsibilities in this matter and commit to complying with all environmental laws.

G) Relations with Employees
DYH provides fair and equal opportunities for all of its employees to work in a safe environment and achieve personal development. With a view toward enabling the development of society and individuals, the Group complies with all applicable labor laws and regulations.

H) Protection of DYH Assets
1. Conflicts of interest
DYH requires of all of its employees with activities outside their job to comply with the laws and avoid conflicts of interest with their professional roles as DYH employees. Employees cannot abuse DYH resources or damage its image or reputation.
2. Audit and control
DYH commits to establishing appropriate control mechanisms in accordance with the laws, regulations and Company policies.
3. Rules regarding the Stock Exchange and the Company stock
DYH commits to making every effort to facilitate transparency and confidence in capital markets.
4. Intellectual property rights
Intellectual properties (trade secrets, brands, copyrights and other proprietary information) are among DYH's most valuable assets. This policy aims to establish, protect, maintain, defend and prudently utilize all commercially important intellectual properties of DYH. All employees are required to take the necessary measures to protect these assets. DYH not only protects its own intellectual property rights, but also respects the intellectual property rights of others.