2021 ESG Report Wynn Resorts - Wynn Responsibility

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE 102-53 Contact point for questions regarding the report 102-54 Claims of reporting in accordance with the GRI Standards 102-55 GRI content index DISCLOSURE STATEMENT Erik Hansen, Wynn Resorts, Chief Sustainability Officer The 2021 ESG Report has been prepared as GRI Referenced. This material references the 2016 GRI Standards, with the exception of topic-specific standards for Water and Effluents (2018), Occupational Health and Safety (2018), and Waste (2020). Wynn Resorts 2021 ESG Report: GRI Index, p. 70; Defined benefit plan obligations and other retirement plans Wynn Resorts 10-K: Note 10 - Benefit Plans, p. 85; 201-3 Wynn Resorts 10-K: Note 10 - Benefit Plans, p.85; Wynn Resorts 2021 ESG Report: Giving Week 2021, p. 43; Employee Volunteerism, p. 44 - 45; Wynn Employee Foundation Community Grants and Donations, p. 46 - 47; Community Programs, p. 48; Community Impact Statement Wynn Resorts and the Wynn Employee Foundation proudly maintain partnerships that build on multiple years of support in Las Vegas and Boston. Organizations that our Company has served year after year include: 2 0 3 -1 Infrastructure investments and services supported The Shade Tree of Las Vegas, a shelter and service provider for women and children in crisis. Dean Petersen Elementary School, a school serving one of the poorest neighborhoods in Las Vegas, with 100% of students qualifying for free and reduced lunch. Disabled American Veterans, an organization which works to secure benefits for disabled veterans and their families. Bread of Life, a food bank that strives address issues of hunger and poverty by feeding the hungry, homeless, needy, and isolated. Big Sister Association of Greater Boston, an empowerment organization that offers programming and mentorship to support healthy development and success to young women. Wynn Resorts 2021 ESG Report: Anti-Corruption, p. 22; 2 0 5 -2 Communication and training about anti-corruption policies and procedures 94% of Encore Boston Harbor employees completed annual compliance training by the close of 2021. 100 % of Wynn Las Vegas employees completed annual compliance training by the close of 2021. Employees who are out of work for sick or personal leave are required to complete mandatory trainings upon returning to active work. 2 0 6 -1 6 Legal actions for anti-competitive behavior, anti-trust, and monopoly practices Wynn Resorts 10-K: Note 17 - Commitments and Contingencies, p. 100; 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX Direct economic value generated and distributed Wynn Resorts 10-K: Item 8 - Financial Statements and Supplementary Data, p. 57; 2 0 1 -1

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE DISCLOSURE STATEMENT 2 0 7-1 Approach to tax Wynn Resorts 10-K: Report of Independent Registered Public Accounting Firm, p.58-59; Note 13- Income Taxes, p. 91; 2 0 7-2 Tax governance, control, and risk management Approach to Tax The tax strategy conforms with the Group’s Code of Business Conduct and Ethics. We seek to identify, evaluate, monitor and manage tax risks to ensure that we comply in full with our legal obligations. We are committed to compliance with tax laws and practices. We continuously monitor changes to tax legislation, ensuring that we take advice where appropriate from professional advisers. 2 0 7- 3 Stakeholder engagement and management of concerns related to tax In 2021, Wynn Resorts paid 437,642,085 in Taxes and Government Fees in the United States. We assess tax laws to support the commercial and investment objectives of our business. We assess the tax treatment of material transactions and new business developments. Where more than one legal option is available, the most tax-efficient method may be pursued. When appropriate to our business, we will seek to apply tax incentives and exemptions in the manner in which they are intended. We engage with the tax authorities in a cooperative and compliant manner. The Company has participated in the IRS Compliance Assurance Program (“CAP”) for the 2012 through 2021 tax years and will continue to participate in the IRS CAP for the 2022 tax year. To minimize tax risk and maintain transparency, we aim to provide information and disclose tax matters in a timely manner. We seek to resolve any differences by providing each tax authority all required information to understand our business and through constructive discussion. Wynn Resorts 2021 ESG Report: Fuel and Electricity, p. 56 - 57; Wynn North America Power Consumption by Energy Type Non-renewable 3 0 2 -1 Energy consumption within the organization Renewable Total Consumption Year MWh Gigajoules MWh Gigajoules MWh Gigajoules 2015 195,944 705,400 - - 195,944 705,400 2016 191,815 690,534 - - 191,815 690,534 2017 181,086 651,912 - - 181,086 651,912 2018 155,918 561,305 21,189 76,281 177,107 637,586 2019 148,729 535,423 28,554 102,795 177,283 638,218 2020(1)(2) 163,951 590,225 24,172 87,020 188,123 677,245 2021(2)(3) 179,111 644,799 27,485 98,947 206,596 743,746 (1) Total 2020 and 2021 electricity consumption for Wynn North America included both Wynn Las Vegas and Encore Boston Harbor. (2) The Wynn Solar Facility experienced an unscheduled maintenance outage in 2020 and 2021, resulting in decreased annual output. (3) Encore Boston Harbor’s total renewables in 2021 include a mix of physically owned renewable generation and REC purchases, including green-e Certified RECs that offset a portion of electricity consumed. 7 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX As our business grows and expands, risks may arise with respect to the application of tax laws that are complex and uncertain at times. While we do not have prescriptive levels of tax risk, we routinely seek professional advice where the application of tax law to a material transaction or a given situation is reasonably unclear or uncertain. We assess tax laws to support the commercial and investment objectives of our business. We assess the tax treatment of material transactions and new business developments. Where more than one legal option is available, the most tax efficient method may be pursued. When appropriate to our business, we will seek to apply tax incentives and exemptions in the manner in which they are intended.

GRI Disclosure Index SUB-DISCLOSURE NUMBER 302-3 DISCLOSURE TITLE Energy intensity DISCLOSURE STATEMENT Wynn Resorts 2021 ESG Report: Fuel and Electricity, p. 56 - 57; Wynn Resorts 2021 ESG Report: Water, p. 60 - 61; 3 0 3 -1 Interactions with water as a shared resource Wynn North America Regional Water Risk Assessment 2021: Everett: Low - Medium (10-20%) Las Vegas: Low ( 10%) Source: World Resources Institute: Water Stress Rating - Aqueduct Water Risk Atlas Wynn Resorts 2021 ESG Report: Water, p. 60 - 61; 303-5 Water consumption Direct (Scope 1) GHG emissions Year Wynn Las Vegas Encore Boston Harbor Water Consumption in Areas of High Stress 2017 508,295 - - 2018 564,320 - - 2019 520,525 - - 2020 395,190 51,839 - 2021 432,780 64,858 - Wynn Resorts 2021 ESG Report: Emissions, p. 58 - 59; Wynn North America Carbon Dioxide Emissions (Metric Tons CO2) Scope 1 Emissions 3 0 5 -1 3 0 5 -2 Energy indirect (Scope 2) GHG emissions Scope 2 Emissions Total Emissions Property 2019 2020 2021 2019 2020 2021 2019 2020 2021 Wynn Las Vegas 193,213 151,151 327,709 105,151 66,621 67,632 298,364 217,772 395,341 Encore Boston Harbor - 3,894 13,824 - 2,951 - - 6,845 13,824 Wynn Sports Interactive - - 19 - - - - - 19 North America Total 193,213 155,045 341,552 105,151 69,572 67,632 298,364 224,617 409,184 We use the Environmental Protection Agency’s 2021 Emission Factors for Greenhouse Gas Inventories. The calculation methodology uses 100-year GWP from the Intergovernmental Panel on Climate Change’s Fourth Assessment Report. Wynn Resorts uses the Environmental Protection Agency’s definition of Scope 1 Emissions: Direct emissions from sources owned or controlled by the Agency. Wynn Resorts uses the Environmental Protection Agency’s definition of Scope 2 Emissions: Emissions that result from the generation of electricity, heat, or steam purchased by the Agency from a Utility provider. Wynn Resorts 2021 ESG Report: Emissions, p. 58 - 59; 305-4 8 GHG emissions intensity Our CO2 Emissions Intensity Ratio includes Scope 1 and 2 Emissions and is calculated using operation area as a denominator. 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX Wynn North America Water Consumption (Gallons x 1,000)

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE 3 0 6 -2 Management of significant wasterelated impacts 306-3 Waste generated 306-4 Waste diverted from disposal 306-5 Waste directed to disposal DISCLOSURE STATEMENT Wynn Resorts 2021 ESG Report: Waste, p. 62 - 63; 4 0 1 -1 4 0 1 -2 9 New employee hires and employee turnover Benefits provided to full-time employees that are not provided to temporary or part-time employees 2021 Wynn North America Turnover Rate Voluntary Turnover Rate 20% Involuntary Turnover Rate 7% Wynn Resorts Proxy Statement: Employee Benefits, p. 23; Wynn Resorts 2021 ESG Report: Employee Benefits, p. 33 - 34; 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX Wynn Resorts 2021 ESG Report: Wynn North America Workforce Highlights, p. 29;

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE DISCLOSURE STATEMENT Customer Health & Safety Program Throughout 2021, Wynn Resorts continued to update its comprehensive Health & Safety Plan developed in 2020, which became the gold standard of the industry. As an industry leader in creating and implementing COVID-19 protocols, all employees received Wynn’s mandatory training on health and safety. Additional comprehensive training was provided to employees in high-touch areas such as Housekeeping, Food & Beverage, Casino Operations, Public Areas, Hotel Operations, and Security. This assured the comfort and safety of our guests and protected our workforce. 4 0 3 -1 Occupational health and safety management system In May 2021, Wynn Las Vegas updated its mask policy to comply with changing CDC Guidelines. At that time, fully vaccinated guests and employees were no longer required to wear a mask, while unvaccinated guests and employees were required to wear a mask. In July 2021, all guests and employees regardless of vaccination status were once again required to wear masks in indoor public areas, unless actively eating, drinking, or smoking. Face masks were available to employees and guests at all resort entrances at no cost to enhance the guest experience. Employees were required to follow state and CDC guidelines regarding masks and other PPE. Signage was posted throughout the property, reminding employees and guests of the proper way to wear face masks. For both guests and employees, Encore Boston Harbor enforced recommended local, state and national PPE usage guidelines and also followed Wynn Resorts’ industry-leading cleaning and sanitization protocols. By summer 2021, Encore Boston Harbor enforced mandatory face coverings for unvaccinated guests and employees, while face coverings became optional for vaccinated employees and guests. All partitions were removed and there were no longer restrictions in restaurants or gaming areas as the hotel and casino resumed 24-hour operations. By fall 2021, Encore Boston Harbor required employees to test weekly if unvaccinated; and by 2022 testing requirements were dropped and masking became optional. The Return to Shows and Events Entertainment is an essential part of the Las Vegas experience and in June 2021, fullcapacity shows resumed in the Encore Theater. This was during the May to July 2021 period when the state mask mandate was dropped for vaccinated guests. When the mask mandate was reinstated in July 2021, guests were required to wear masks while attending shows unless they were eating or drinking. We kept the theater open and guests continued to enjoy shows, while following the mask policy so we could deliver the true Las Vegas experience. continued next page. 10 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX Mask Requirements Throughout 2021, state mask mandates fluctuated, and the Company focused on striking a balance between the comfort and convenience of guests while maintaining a safe environment for all. As mask mandates relaxed, we ramped communications to guests and employees through signage around the property.

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE DISCLOSURE STATEMENT Employee Vaccination Rates Wynn Las Vegas became one of the first Las Vegas Strip operators to resume 100-percent capacity at our resort. Several factors led to our high employee vaccination rates. In January 2021, a University Medical Center vaccination clinic was implemented on-site to make it as easy as possible for employees to get vaccinated. Throughout the year, Wynn Las Vegas continued to offer on-site COVID-19 vaccination and booster clinics for employees, guests, and the Las Vegas community. In April 2021, Wynn Resorts made the decision to require all staff to either get fully vaccinated or obtain weekly proof of a negative COVID test. In May 2021, 85 percent of Wynn Las Vegas employees had been vaccinated against Workplace Safety Program Wynn has established a Workplace Safety Program that manages the safety and health of all employees and guests at our North American properties. This program includes extensive mandatory employee safety training, hazard identification and control, accident reporting and corrective action, accident prevention strategies, and employee committee programs to educate on safe workplace practices. This program meets or exceeds the values and practices included in the ISO45001 standard. (The ISO45001 standard has replaced the recently withdrawn BS OHSAS 18001 standard.) Utilizing safety education and accountability, our goal is to consistently improve human safety, reduce property losses, and maintain a stellar reputation with our stakeholders. 4 0 3 -1 Occupational health and safety management system To uphold employee and guest safety, Wynn Resorts commits to: Provide a workplace free from unsafe conditions and recognized hazards. Comply with the federal and state Occupational Safety & Health Standards & Regulations, state and local ordinances, and manufacturer guidelines. Administer and enforce occupational safety & health programs. Provide proper training in the safe use of equipment and machinery, personal protective equipment, hazard recognition, and emergency procedures. Inform all Employees of the safety rules, regulations, and standards for their respective duties. In 2021, Wynn Las Vegas experienced the tragic loss of two employees. On 9 March 2021, a team of Wynn Security Officers responded to the employee parking garage to perform a welfare check on a Wynn employee who had been absent from work for two days. The employee opened fire and took the life of an armed Wynn Special Operations Guard before taking his own life. Immediately following the event, Wynn leadership notified all employees of the incident details, available mental health resources, and opportunities to support the families of the employees lost. Grief counselors provided private counseling sessions on-site to help staff impacted by the incident. Additional time off was permitted for employees to attend funeral services. Wynn Executive Leadership donated flights to employees traveling to the funeral of the fallen Special Operations Guard, and CEO Matt Maddox donated 10,000 to the guard’s family. In addition, Wynn Las Vegas hosted a memorial and promoted fundraising initiatives for the impacted families. continued next page. 11 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX COVID-19, and therefore the Nevada Gaming Control Board approved Wynn Las Vegas’ return to full-capacity operations as well as removal of plexiglass dividers from all table games and slot machines in the casino.

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE DISCLOSURE STATEMENT Violence, or threat of violence, to any employee, guest, or vendor is not tolerated at Wynn. Standards of conduct are detailed in Wynn’s Workplace Violence Policy. This policy bans weapons, protects against hostile conduct that subjects a person to emotional distress, and details procedures for reporting violations. 4 0 3 -1 Occupational health and safety management system Wynn promotes a variety of existing programs that create a supporting environment for emotional wellbeing, including emergency response buttons for housekeeping staff, annual emergency response training required of all employees, mental health counseling services through the Employee Assistance Program, and a 24/7 Mental Health Hotline. Wynn Las Vegas OSHA Employee Work-Related Injury 403-9 Work-related injuries Work-Related Injury 2019 2020 2021 Recordable injuries not resulting in restrictions or lost time 117 46 96 Recordable injuries resulting in restricted work or transfer to another job 127 33 80 Recordable injuries resulting in lost time 72 85 133 Total Number of Deaths - - 2 Total OSHA Recordable Injuries 316 164 311 Encore Boston Harbor OSHA Employee Work-Related Injury Work-Related Injury 2019 2020 2021 Reordable injuries not resulting in restrictions or lost time 14 10 3 Recordable injuries resulting in restricted work or transfer to another job 4 1 - Recordable injuries resulting in lost time 43 42 46 Total OSHA Recordable Injuries 61 53 49 Wynn Resorts 2021 ESG Report: Employee Training and Human Capital Development, p. 35 - 36; 4 0 4 -1 4 0 4 -2 12 Average hours of training per year per employee In North America, Wynn employees hired in 2021 received 14.5 hours of training. Programs for upgrading employee skills and transition assistance programs Wynn Resorts 2021 ESG Report: Diversity and Inclusion Programs, p. 30 - 32; Employee Benefits, p. 33 - 34; Employee Training and Human Capital Development, p. 35 - 36; Human Trafficking Prevention, p. 41; New Hire Orientation instills company culture, values, and service standards through training on Company policies including ethical business standards, harassment and discrimination prevention, and compliance. 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX Our security departments have incorporated mental health awareness into the training required of all managers and officers. More information on Wynn’s security practices and training measures can be found in this report under Workplace Security Program and Human Trafficking Prevention.

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE DISCLOSURE STATEMENT Wynn Resorts 2021 ESG Report: Diversity and Inclusion Programs, p. 30 - 32; 2021 Wynn North America Gender at Levels of Leadership Leadership Manager Line Level Male 65% Female 35% Male 57% Female 43% Male 54% Female 46% 2021 Wynn North America Employee Age Distribution 17% 30-50 51% Over 50 32% 2021 Wynn North America Ethnic Diversity at Levels of Leadership Leadership 4 0 5 -1 Diversity of governance bodies and employees Manager Line Level 4 0 9 -1 13 Operations and suppliers at significant risk for incidents of forced or compulsory labor Ethinicity Percentage of Employees in Tier 2 or More 4.0% American Indian 0.5% Asian 13.0% Black 3.0% Hawaiian 0.5% Hispanic 6.0% White 72.0% Other/declined 1.0% 2 or More 4.5% American Indian 0.5% Asian 21.0% Black 6.5% Hawaiian 2.0% Hispanic 21.0% White 42.0% Other/declined 2.5% 2 or More 4.0% American Indian 0.5% Asian 22.0% Black 9.5% Hawaiian 1.5% Hispanic 34.0% White 24.0% Other/declined 4.5% Wynn Resorts 2021 ESG Report: Human Rights, p. 37; 2 0 2 1 E N V I R O N M E N TA L , S O C I A L , A N D G O V E R N A N C E R E P O R T GRI REPORTING INDEX Under 30

GRI Disclosure Index SUB-DISCLOSURE NUMBER DISCLOSURE TITLE DISCLOSURE STATEMENT Wynn Resorts 2021 ESG Report: Human Trafficking Prevention, p. 41; Wynn Resorts enforces a strict no-weapons policy at our properties. 41 0 -1 Security personnel trained in human rights policies or procedures Security personnel are trained on all written policies and procedures upon hiring, including regular drills for emergency evacuations

Wynn Resorts Proxy Statement : Director Biographies and Board Committees, p. 3 and 12; Wynn Resorts Proxy Statement : Director Biographies and Board Committees, p. 3 and 12; 102-19 Delegating authority Wynn Resorts Proxy Statement : Board Committees, p. 12; 102-20 Executive-level responsibility for economic, environmental, and social topics