This Sustainability Commitment explains the efforts and steps we are taking to achieve our global sustainability goals. This includes updates for our fiscal year 2022. With nearly 850 warehouses around the world, we understand the impact we have on environmental and sustainability issues globally. Through focusing on initiatives such as our Climate Action Plan and our STAR program for our operators, we believe we can play a positive role in helping the world face these most pressing issues. While we see progress in many areas, we are committed to continuous improvement across all elements of our business: people and communities, operations and merchandise. As always, we thank our employees, suppliers, members and the communities where we operate for their continuing support as we work together to help our world thrive.

— Craig Jelinek, CEO

Mission Statement & Our Code of Ethics

At Costco, our mission is to continually provide our members with quality goods and services at the lowest possible prices. In striving for our mission, we follow our Code of Ethics:

• Obey the law
• Take care of our members
• Take care of our employees
• Respect our suppliers
• Reward our shareholders

Our Sustainability Principles & Objectives

We believe sustainability is doing the right thing for our members, our employees, our suppliers, our shareholders, our communities and the environment while being mindful of our impact on our people and the world. We have an obligation and responsibility to do our part.

We have three guiding principles that drive our approach to address some of the world’s most complex problems:

• For Costco to thrive, the world must thrive — we are committed to doing our part
• We focus on issues related to our business and where we can contribute to real, results-driven positive impact
• We do not have all the answers, are learning as we go and seek continuous improvement

Focus SDGs & Costco’s Priorities

We recognize that sustainability can be defined extremely broadly. Thus, we have chosen to narrow our focus on areas that are closely aligned with our business. In particular, we have identified seven of the United Nations Sustainable Development Goals (SDGs) to prioritize:

For more information on our key performance indicators, please see the attached chart.

Our Holistic Approach & Pillars of Sustainability

We have aligned our sustainability efforts and initiatives with the way we structure and think about our business, which is a holistic and integrated approach to sustainability. Three primary pillars drive our initiatives, all of which are supported by our Climate Action Plan at the foundation:

• 1. People & Communities
• 2. Operations
• 3. Merchandising

In each of our pillars, we have a framework and a set of initiatives that will help us reach our sustainability goals. We have also taken important steps in the areas of sustainability Governance, Reporting and Education to support these efforts.

Additional Information

We continue to incorporate sustainable practices in our business. Our practices are evolving over time, as we learn more and adapt to our ever-changing world, and we update our Commitment to reflect these changes. The data reported is compiled from sources that we believe are reasonable to rely on at the time of publication, may change as new information becomes available and will be restated if necessary in future reports.

Our Resources & Updates page provides an archive of our previous years’ Commitments only as a matter of convenience to users, who may wish to compare them over time. These historical Commitments are superseded in their entirety by the current version of the Commitment and should not be relied upon as currently accurate disclosures or otherwise. You can also find a consolidated version of this current Commitment, updated in December 2022, on the Resources & Updates page.

For questions or more information, please contact Costco Customer Service.