¹ This is a non-GAAP financial measure. Please see the footnotes and tables that accompany WM’s financial earnings releases dated 2/12/2024, 1/31/2023 and 2/2/2022; available at investors.wm.com, for more information on WM’s use of non-GAAP measures and a reconciliation to the most comparable GAAP measures.

² Diverse Supplier Spend includes but is not limited to spend with Women’s Business Enterprise Network Council (WBENC), National Minority Supplier Development Council (NMSDC), Small Business Enterprise (SBE), Lesbian, Gay, Bi-sexual, Transgender and Queer (LGBTQ) and Veteran-owned Businesses and Service Disabled Veteran-owned Small Businesses (VBE/SDVQSB) certified businesses.

³ Facility count is inclusive of WM-owned-and-operated facilities on WM landfills.

⁴ Collection Vehicles indicates the number of vehicles that register on-road hours within the reported year.

⁵ Alternative Fuel Vehicles include vehicles that run on compressed natural gas (CNG) and liquefied natural gas (LNG).

⁶ WM continues to review our methodology for calculating percent of Alternative Energy Vehicles Allocated to Renewable Natural Gas (RNG) to improve overall data accuracy.

⁷ “Other” includes specialty materials such as used oil, tires and textiles.

⁸ The Enterprise Net Promotor Score measures customer loyalty by looking at their likelihood of recommending a given business.

⁹ The Overall Customer Satisfaction metric is calculated based on number of responses with a 9 or 10 rating (on a scale of 1-10) divided by the total number of responses.

¹⁰ The Post-Contact Survey Customer Satisfaction score is a score provided by the customer following a customer service conversation on a scale of 1-5.

¹¹ Tracking of customers within these categories began in 2022 as a result of technology upgrades. Prior to that, we tracked customers in line with our financial reporting which differs from this classification (indicated by ‘NA’ - Not Available).

¹² Residential Customers include residences that have direct contracts with WM for curbside collection services.

¹³ Commercial Customers include those receiving services on a commercial collection route.

¹⁴ Industrial Customers include those that receive roll-off service.

¹⁵ Municipal Customers are defined as municipalities that have direct contracts with WM. These contracts include many residential customers as they provide services to a specific area, inclusive of all residents.

¹⁶ Our GHG Emissions Inventory Scope 1, 2 and 3 is third-party reviewed and verified annually.

¹⁷ As aligned with Sustainabiltiy Accounting Standards Board (SASB) definitions, this includes only emission sources that are regulated under a permit-based mechanism.

¹⁸ As aligned with SASB definitions, this includes only emission sources that meet a regulatory threshold for reporting.

¹⁹ Location-Based reflects emissions from total electricity consumption. Market-Based reflects emissions from retirement of renewable energy credits (RECs) in accordance with the GHG Protocol Corporate Standard.

²⁰ WM continues to improve our Scope 3 accounting and transparency by working closely with our suppliers and aligning with best practice methodologies. Not only does this result in fluctuations in reported emissions, but it may also lead us to shift emissions into different categories, eliminating some while expanding others.

²¹ Biogenic Emissions are reported separately from WM’s Corporate GHG Inventory in line with the GHG Protocol Corporate Standard. These emissions are considered carbon neutral as they derive from decomposition of biological material. Biogenic Scope 2 emissions are associated with retired RECs from landfill gas-to-electricity.

²² Carbon Intensity metrics include Scope 1 and 2 emissions normalized to $M net revenue, tons of waste disposed and 1,000 miles driven.

²³ Miles Driven Carbon Intensity metric reflects Scope 1 Collection Fleet emissions normalized to 1,000 miles driven.

²⁴ Avoided GHG Emissions per CO₂e is calculated by dividing total potential emissions avoided from Renewable Energy Generation, Reuse and Recycling of Materials and Carbon Permanently Sequestered by direct operating emissions (Scope 1 and 2).

²⁵ Landfill gas generated from waste is cyclical over a period of decades. The amount and rate of gas generation is dependent on several factors, including waste volume, composition, climatic factors and operational controls.

²⁶ Equipment Capacity presents MWs of capacity at WM Renewable Energy (WMRE) facilities only.

²⁷ Landfill gas converted to energy is a measure of energy produced at renewable energy facilities on WM landfills, inclusive of WM-owned-and-operated and third party. WM has updated this metric based on alignment between various data sources and an enhanced measurement approach.

²⁸ Note, landfill gas processed at a renewable energy facility has a higher energy content than the enterprise-wide average energy content.

²⁹ Total Fuels are inclusive of fuels used in collection fleet, off-road fleet, facility heating, direct operations and aviation.

³⁰ Renewable Electricity is comprised of RECs generated from WM landfill gas-to-electricity facilities and then retired against WM's direct electricity usage.

³¹ Energy Intensity is enterprise-wide energy including electricity and fuels normalized to energy per 1,000 tons waste managed, $10k operating revenue and employee.

³² Air emissions data is reported in metric tons per year based on emissions at landfill sites only.

³³ Toxic Release Inventory (TRI) data is reported a year behind.

³⁴ Waste generated in operations is calculated using an average waste and recycling generation tonnage per employee, per day for each of our facility types. Each WM facility type (i.e., landfill, hauling, recycling, office, etc.) has its own waste factor calculated based on historical waste audit data.

³⁵ Total Waste Generated includes non-hazardous waste.

³⁶ Ground water usage at sites without meters is estimated based on employee count.

³⁷ Workforce data is for WM’s total workforce, unless otherwise stated. Workforce percentage figures are a representation of plus or minus 1%. Diverse and minority representation references both racial and ethnic characteristics self-identified by U.S. team members only.

³⁸ In 2022, WM updated our methodology for calculating Salary Ratio to align with industry best practices, which resulted in a slight year-over-year difference. The updated methodology is an average of all female employees’ pay compared to all male employees’ pay.

³⁹ The composition of WM’s Senior Leadership Team varies, but as of year-end 2023, it was comprised of the following roles: Chief Executive Officer, Chief Sustainability Officer, Chief Financial Officer, Chief Legal Officer, Chief Operating Officer, Chief Human Resources and Diversity & Inclusion Officer, Chief Customer Officer, Senior Vice President Operations East Tier, Senior Vice President Operations West Tier and Senior Vice President Enterprise Strategy.

⁴⁰ WM Leadership is comprised of supervisors and above roles, including functional and/or people leaders.

⁴¹ Race groups and population data are based on the categories provided by the U.S. Census Bureau. This includes six single-origin race groups (White, Black or African American, American Indian or Alaska Native, Asian, Native Hawaiian or Other Pacific Islander and Some Other Race) and one multiple-origin race group (Two or More Races). Each race group is divided into two ethnic categories: Hispanic or Latino and non-Hispanic or non-Latino. This data aligns with EEO-1 reporting.

⁴² This includes the following: Employee chose not to report, “not specified” and/or employees in Canada and India.

⁴³ In 2023, WM updated our training programs through a few key strategies: 1) focus on employee development including our extended leadership development programs; 2) through targeted compliance training to better meet the needs of the business; and 3) more personalized training experiences.

⁴⁴ Average hours of training per employee includes training completions tracked in WM’s Talent Management System and an estimate of blended learning techniques (e.g., daily training huddles, weekly safety training, monthly observations and post-training reinforcement methods such as videos and practice sessions) that occur in the field. In 2023, average training per employee decreased as a result of improved targeted training programs for total front-line employees, improving the overall quality and resulting in fewer hours needed per employee.

⁴⁵ These donations are supporting our Innovative Employment Pathways (IEP) program.

⁴⁶ Expanded reporting in 2023 to include donations that support select workforce development programs and earmarked local donations.

⁴⁷ Environmental acres and projects reported here are actively managed through the Wildlife Habitat Council programs.

⁴⁸ 2021 data includes participants in WM-supported sustainability education events and programs. In 2022, we updated our reporting methodology to align with the 2030 Social Impact goal to positively impact people through targeted social impact programs. Cumulative people positively impacted is 829,460 for years 2022-2023, towards our goal of 10 million people positively impacted by 2030.

⁴⁹ Diverse representation is voluntarily self-identified. Minority representation references both racial and ethnic characteristics self-identified by U.S. directors only.

⁵⁰ The data presented above is annual total monetary contributions to and spending for political campaigns, political organizations, lobbyists or lobbying organizations, trade associations and other tax-exempt groups. Note the amounts are based on the information provided by the association or organization. WM PAC contributions are excluded and can be found in our publicly available disclosure Participation in the Political Process https://investors.wm.com/static-files/3013b95e-be0a-40a7-830f-22cdd9e3c50a

⁵¹ WM’s SPEAK UP culture encourages employees to report issues and concerns through several channels, including directly to their manager, Human Resources, Compliance and Ethics or directly to the third-party-administered Integrity Helpline.

⁵² Includes Human Resources (HR), Corporate HR Investigation Team, Corporate Security, Internal Audit, Senior Leadership and Compliance and Ethics.

⁵³ Includes, but not limited to, harassment, discrimination, unprofessional behavior, employee relations, etc.

⁵⁴ Includes, but not limited to, bribery, business practices, fraud, payroll fraud, etc.

⁵⁵ Includes, but not limited to, burglary, identity theft, privacy concerns, property damage, workplace violence, etc.

⁵⁶ Includes, but not limited to, conflicts of interest, gifts and entertainment, etc.