Costco Wholesale Canada Ltd.Sustainability Commitment.

Six Questions for Suppliers

We're committed to offering high-quality goods at the lowest possible prices — in a way that respects the people, environment and animals that produce them. We ask our suppliers six foundational questions:

• Can you map your supply chain?
• How are the people cared for?
• How are the animals cared for?
• How is the environment cared for?
• Is the best possible packaging being used?
• What are your emissions and your plans to reduce them?

For more information, please refer to Merchandising: Our Principles & Policies.

6 Rights of Packaging Sustainability

Our approach to packaging focusses on driving innovation between our purchasing teams and vendor partners in order to provide sustainable packaging without compromising food safety, product quality or sales.

• The right reduction
• The right amount of post-consumer recycled content (PCR)
• The right fiber: tree-free or certified forest content
• The right recyclable packaging
• The right certified compostable packaging
• The right labelling

For more information, please refer to Merchandising: Packaging.

Fiscal Year 2025 Packaging Sustainability Success Stories

Costco Pharmacy Bags

Changed from 0% to 100% recycled content with FSC certified fibers.

Kirkland Signature Apparel Size Strips

Changed from 0% to 100% recycled content.

Kirkland Signature Organic Marinara

Replaced plastic carrier handle with paper carrier handle.

Kirkland Signature Conditioner & Shampoo

Replaced plastic wrap with paper carrier handle made from SFI certified fibers.

Kirkland Signature Body Lotion

Replaced plastic wrap with paper carrier handle.

Environmental Compliance & Sustainability Program

Costco’s Sustainability Technical Assistance Review (STAR) program ensures that our operations are not only adhering to environmental regulations but also encourages innovation at the store level with a direct focus on finding efficiencies in Energy, Water, Emissions and Waste Diversion.

For more information, please refer to Operations: Environmental Compliance.

Water Use

We continue to seek ways to save water by evaluating opportunities to improve water efficiency in our operations including: adopting water efficient fixtures, assessing the potential for water reuse in irrigation, improving leak detection and implementing low water-use landscaping and irrigation technologies.

For more information, please refer to Operations: Water Strategy.

Waste Diversion from Landfill

78% of waste produced by our Canadian operations was diverted from landfill in fiscal year 2025, an increase of 19% since 2017.

Costco Canada has programs to divert : Corrugated Cardboard, Plastic Film, Household Batteries, Automotive Batteries, Hazardous Waste, Glass Containers, Plastic Containers, Paper, Books, Coupons, Electronics, Scrap Wood, Scrap Metal, Food Waste, Used Cooking Oil, Fresh Meat Bone and Fat.

For more information, please refer to Operations: Minimizing Waste.