We subscribe or voluntarily support the following international standards and sustainability initiatives:

Bettercoal

Voluntary code that reviews management systems, sustainable performance and impacts against its provisions. It works with the Company to improve its practices.

For more information about Bettercoal, please visit their website: www.bettercoal.org

Voluntary Principles on Security and Human Rights

Voluntary code of business conduct, aimed at facilitating the management of risks related to public and private security in terms of human rights, particularly those derived from operating in areas where illegal armed groups are active.

For more information on the Voluntary Principles on Security and Human Rights, visit their website: www.voluntaryprinciples.org

UN Guiding Principles on Business and Human Rights

Behavioral and performance parameters related to the responsibility of States and companies to respect and promote human rights in relation to the impacts of corporate operations.

For more information on the UN Guiding Principles on Business and Human Rights, visit their website:
www.ohchr.org

IFC performance standards on environmental and social sustainability

IFC initiative for corporate commitment to sustainability, with a focus on risk and impact management, which provides guidelines for the identification of sustainability-related situations in all phases of a project or investment.

For more information on IFC's Performance Standards on Environmental and Social Sustainability, please visit their website: www.ifc.org

Working Group on Human Rights and Coal

Initiative to exchange experiences, identify replicable lessons and opportunities for improvement. Recommendations are made regarding public policy, joint work initiatives are promoted in companies and their operational areas of human rights.

Mining and Energy Committee

Multi-stakeholder initiative for the promotion, protection and respect of on Human Rights in security-related matters. It is particularly linked to the Voluntary Principles on Security and Human Rights.

To learn more about the Mining and Energy Committee, visit its website: www.cmecolombia.co

Extractive Industries Transparency Initiative (EITI)

Global standard to promote open and responsible management of extractive resources.

For more information on the Extractive Industry Transparency Initiative, visit its website:
www.eiti.org

In addition, the Company is associated with the following national advocacy organizations: