SL Green 2018 Sustainability Report

BUILDING A NEW

VISION FOR NEW YORK SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

TABLE OF CONTENTS

02 04 06 08 10 12 14 16 18 20

CEO Letter Key Achievements One Vanderbilt Environmental Sustainability Our Approach Our Carbon Strategy LEED Energy Star Efficiency Strategy Partnering with Our Tenants

22 24 26 28 30 32 34 35 36

Social Responsibility Our People Living Green Community Engagement Strong Governance Management Principles Stakeholder Engagement

Materiality Matrix About This Report

PAGE 1

SL GREEN RECOGNIZES THAT OUR INFLUENCE EXTENDS BEYOND A PHYSICAL FOOTPRINT. ENVIRONMENTAL SUSTAINABILITY, SOCIAL RESPONSIBI L IT Y, AND SOUND GOVERNANCE ARE AT THE CORE OF OUR BUSINESS STRATEGY.

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Marc Holliday Chief Executive Officer SL Green Realty Corp.

OUR MISSION SL Green Realty Corp. is committed to environ- mental, social, and governance initiatives that deliver value and health for our stakeholders. Structured around three key areas, Efficiency, Tenant Experience, and Industry Leadership, our market-leading program continues to minimize environmental impact and increase resiliency.

CEO LETTER

KEY ACHIEVEMENTS

ENVIRONMENTAL

SOCIAL

GOVERNANCE

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A MESSAGE FROM OUR CHIEF EXECUTIVE OFFICER AND CHAIRMAN ELECT Marking two decades as a publicly- traded REIT, I am focused on SL Greenʼs commitment to corporate sustainability now more than ever. As we approach a new era of sustain- ability where Environmental, Social, and Governance (ESG) decisions are inextricably linked with economic performance, SL Green is poised to be an industry leader. Our collective vision is using capital to generate productive, sustainable outcomes while limiting future risk to people and planet. Leveraging key ESG indicators identified by our investors and stakeholders, SL Green has assembled a portfolio that creates long-term value with a positive impact to society. Today, no organization is more committed to meeting the dynamic needs of New York Cityʼs

community than SL Green—a home- grown company that is unsurpassed in demonstrating leadership in both financial performance and social responsibility. SL Greenʼs strategy is aligned with future resiliency of New York City as we meet citywide carbon reduction goals, deploy cutting-edge technology, and operate around the transportation hubs that are at the heart of the cityʼs vitality. As a native New Yorker, it is of the utmost importance that SL Greenʼs portfolio propagates the collective vision of New York City as a united community. Together, we will transform the built environment to mitigate climate change and provide a high quality of life for all New Yorkers. New buildings are reshaping the skyline while existing properties are being modernized and repurposed, all to perform at the highest levels of sustainability. Our vision for the most ambitious office tower in New York City has been manifested through the SOCIAL SL Greenʼs key partnerships extend beyond the confines of our offices and into the greater NYC community. We consciously strive to be stewards of well-being and agents of good- will toward our neighbors in the city through our wellness programs, volunteerism, and financial patronage.

development of One Vanderbilt, where all design, construction, and operational elements prioritize environmental stewardship and societal responsibility. Our unwavering commitment to New Yorkers is imperative to SL Greenʼs long-term business strategy. At SL Green, our vision is to build an environmentally and socially sustainable legacy for the city I love.

Marc Holliday Chief Executive Officer SL Green Realty Corp.

ENVIRONMENTAL Central to SL Greenʼs mission to improve the city in which we invest is a conscious effort to minimize our carbon footprint by reducing emissions, conserving water, and promoting the use of recycled materials.

GOVERNANCE SL Green conducts our business in accordance with the highest moral, legal, and ethical standards. Our reputation for integrity is the cornerstone of the publicʼs faith and trust in our company.

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

KEY ACHIEVEMENTS SL GREEN CONTINUES TO ACHIEVE SUPERIOR OPERATING PERFORMANCE AND STRIVES TO MAINTAIN ITS POSITION AS A MODEL OF CORPORATE CITIZENSHIP.

View from 30th floor during construction of One Vanderbilt Picture taken October 5th, 2018 No.1 MOST

SUSTAINABLE REIT BY REAL

ESTATE FINANCE AND INVESTMENT (2017, 2018)

CEO LETTER

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20.5M SQUARE FEET connected to a real-time energy management platform 130 COMMUNITY EVENTS provided to our tenants and employees as volunteering opportunities (2018) $220M INVESTED IN PUBLIC TRANSIT IMPROVEMENTS around Grand Central Terminal at our ground-up development, One Vanderbilt 14M SQUARE FEET ENERGY STAR certified and recipient of Partner of the Year — Sustained Excellence (2017-2018) $1M IN CONTRIBUTIONS to charitable organizations and philanthropic endeavors (2018)

15M SQUARE FEET participating in the WELL Portfolio program 30% PORTFOLIO-WIDE emissions intensity reduction goal (by 2025) $66M INVESTED IN ENERGY EFFICIENCY including HVAC, BMS, and lighting upgrades, and variable frequency drive installations (since 2010) 63% MANHATTAN OPERATING PROPERTIES LEED Certified 80% GRI INDICATORS Disclosed in Content Index

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Key Achievements ONE VANDERBILT

The sustainable design of One Vanderbilt creates a Class-A office experience for tenants, visitors, and the local community. With thoughtful consideration to wellness elements like natural light, quality air, and thermal comfort, One Vanderbilt offers tenants the flexibility to adjust to the changing workforce. Tenants will experience superior building features and amenities, including:   LEED Certification   WELL Certification   30,000 square foot amenity floor   Conference center   Indoor air quality that will surpass the ASHRAE 62.1 standard by 30%   Quality water ensured by enhanced filtration   85% of tenant floor area with premier access to daylighting through floor-to-ceiling windows   Access to healthy food offerings in the third floor amenity space   Movement, physical activity, and active living promoted through design strategies   Maximum level of comfort among all building occupants ensured through HVAC system design and acoustical comfort parameters

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One Vanderbilt is the next generation of transit-oriented development in New York. In an unprecedented public-private partnership, SL Green will imple- ment $220 million of public space and transit improvements in conjunction with the construction of One Vanderbilt. This will create a pedestrian-friendly public plaza that bridges the building and Grand Central Terminal. The apex of sustainability, wellness, and amenities will provide both One Vanderbiltʼs tenants and the surrounding community with an unsurpassed urban experience.

RESPONSIBILITY TO OUR COMMUNITY

  $220M in public realm improvements

  $17M in sustainability features that go above and beyond NYC code requirements   Will achieve one of the lowest carbon footprints among build- ings in similar density and scale in NYC   Creation of pedestrian-friendly plaza around Grand Central Station   Improved subway accessibility, circulation, and connectivity

ONE VANDERBILT AVENUE

GRAND CENTRAL CONCOURSE

NEW PEDESTRIAN PLAZA

LIRR EAST SIDE ACCESS BY 2022

METRO NORTH

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Laura Vulaj Senior Vice President and Director of Sustainability SL Green Realty Corp.

CEO LETTER

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OUR VISION FOR ENVIRONMENTAL SUSTAINABILITY

“OUR ENV I RONMENTAL OBJECTIVES MUST BE EQUALLY BALANCED WITH OUR ECONOMIC GOALS.”

Green buildings are no longer the exception, theyʼre the rule. At SL Green, we believe that a strategy for environmental stewardship must also address economic growth and develop- ment in order for it to be sustainable. As New York Cityʼs largest commercial landlord, we can make a significant impact by stabilizing our carbon footprint. Now, more than ever, it is essential that real estate owners and managers work in partner- ship with local and federal governments to shape policies that yield both environmental and economic benefits. But our vision alone wonʼt change the world.

Environmental challenges are best solved by encouraging human ingenuity and developing cutting-edge technologies. As a leader in commercial real estate, SL Green is committed to implementing best practices and operating at the highest efficiency standards to strengthen our communityʼs resiliency, while maintaining our responsibility to our shareholders. For over 20 years, the fortunes of New York City and SL Green have been intertwined. Our company is built on the highest standard of integrity and a pioneering spirit. Together we can influence New York Cityʼs environmental future.

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Environmental Sustainability OUR APPROACH SL Green developed a six- pronged strategy to sustainability, ensuring that the portfolio is resilient, responsible, and reliable. This approach is integrated through the life cycle of all prop- erties, spanning the acquisition, planning, design, construction, and operational phases.

1. REDUCE ENERGY CONSUMPTION

2. FACILITY

3. GREEN BUILDING DESIGNATIONS Pursuing third-party

MANAGEMENT Standardizing green policies and procedures across all properties

Stabilizing portfolio- wide carbon footprint

verification across 100% of the portfolio

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4. TENANT

5. SCIENCE-BASED

6. RENEWABLE ENERGY

ENGAGEMENT Educating tenants through webinars, town hall meetings, and lobby events

EMISSIONS TARGETS Analyzing energy consumption in a global context

Procuring energy from renewable resources

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Environmental Sustainability OUR CARBON STRATEGY SL Greenʼs commitment to creating a greener footprint begins with emissions reduc- tions across its properties. Collaboration with tenants, employees, and other stake- holders is critical in realizing these goals by setting targets and implementing effective management strategies. To further verify its sustainability performance, SL Green partici- pates in a wide variety of external reporting programs such as the Global Reporting Initiative (GRI), CDP, LEED, ENERGY STAR, and the NYC Mayorʼs Carbon Challenge. "WE APPLAUD SL GREEN FOR PROACT I VELY IMPROVING THE PERFOR- MANCE OF THE I R BUI LDINGS, REDUCING GHG EMISSIONS, AND HELPING TO PROTECT THE HEALTH AND WELL- BE ING OF ALL NEW YORKERS." Mark Chambers Director New York City Mayor's Office of Sustainability

11 Madison Avenue, 29th Floor Setback

POLICY FRAMEWORK SL Green contributes to the 80x50 Buildings Partnership, a collaborative effort from New York Cityʼs leading building and energy stakeholders to develop a policy framework that reduces citywide emissions. In tandem with this effort, SL Green crafted climate policy alongside the Real Estate Board of New Yorkʼs Sustainability Committee and participated in the Mayorʼs Office of Sustainabilityʼs 80x50 technical working group.

CEO LETTER

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NYC MAYORʼS GOAL 80x50 80% REDUCTION IN CITYWIDE GHG EMISSIONS BY 2050

SL GREENʼS REDUCTION GOAL 30% IN GHG EMISSIONS INTENSITY BY 2025

CARBON DISCLOSURE PROJECT

NEW YORK CITY CARBON CHALLENGE

SL Green is participating in the New York City Mayorʼs Carbon Challenge with 8 buildings across 8 million square feet. Their pledge is to reduce greenhouse gas (GHG) emissions by 30% over this 10-year initiative. This program includes commitments from tenants, and is in alignment with Mayor de Blasio’s goal to reduce citywide GHG emissions 80% by 2050.

In 2018, SL Green responded to the CDP Climate Change survey for the first time and is among the first owners in New York City to participate. The CDP response is a public commitment to carbon and risk manage- ment transparency. To ensure that emissions reductions are embedded in company operations, a 30% intensity reduction goal was established for 2025.

2012

2014

2017

2017

Goal

Goal

Carbon Challenge Emissions

Carbon Emission Intensity

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Environmental Sustainability LEED

OUR LEED STRATEGY Across the 6 properties that earned LEED certifications in 2018, SL Green:

SL Green has a long history of leading the pursuit of green building designations, with LEED at the core of its strategy. Dating back to 2009, SL Green was among the first owners to adopt LEED for Existing Build- ings (EB) in New York City at 100 Park Avenue. When the new version 4 standard was introduced in 2016, 485 Lexington was one of the first buildings in the nation to achieve LEED EB. SL Green achieved LEED certifications span- ning 18 million square feet historically, and its current port- folio holds certifications across 15 million square feet.

Offset 16,675 MWh of electricity through wind power.

Implemented LEED plans and policies across 100% of properties.

Decreased average water consumption by 33%, equating to over 8M gallons of water saved annually.

Met sustainable criteria with 76% of janitorial cleaning and paper product purchases.

SL Greenʼs 2018 LEED Volume efforts reduced energy consumption by an average of 760,000 kWh/year. This is equiva- lent to 560 metric tons of CO 2 avoided per building, or:

Certified: SL Green Corporate Office (Commercial Interiors), 55 West 46th Street Silver: 10 East 53rd Street, 110 East 42nd Street, 1185 AoTA, 485 Lexington Avenue, 635 AoTA, 810 Seventh Avenue Gold: 100 Church Street, 100 Park Avenue, 11 Madison Avenue, 125 Park Avenue, 1350 AoTA, 1515 Broadway, 220 East 42nd Street, 304 Park Avenue South, 360 Hamilton Avenue, 420 Lexington Avenue, 461 Fifth Avenue, 521 Fifth Avenue, 711 Third Avenue, 750 Third Avenue

120 cars being removed from the road.

The energy to power 61 homes for a year.

14,582 tree seedlings growing for 10 years.

Saving 63,311 gallons of gasoline.

CEO LETTER

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750 Third Avenue

125 Park Avenue

810 Seventh Avenue

11 Madison Avenue

304 Park Avenue South

110 East 42nd Street

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Environmental Sustainability ENERGY STAR ENERGY STAR is foundational to

SL Greenʼs energy management program. It is a measurement and verification tool that enhances the quality, competitiveness, and resiliency of the commercial portfo- lio. ENERGY STAR scores serve as the catalyst SL Green uses to motivate its building operators, property managers, and tenants to pursue capital efficiency projects and implement change. In recognition of its operational excel- lence, the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy (DOE) awarded SL Green the prestigious 2018 Partner of the Year— Sustained Excellence award. Only 1% of 16,000 EPA partners achieve Partner of the Year, distinguishing SL Green as a leader.

1

8

3

2

12

10

13

4

15

11

14

SL GREEN ACHIEVED ENERGY STAR L ABEL S ACROSS 13.4 MILL ION SQUARE FEET, REPRESENTING 9% OF ALL OF MANHATTANʼS LABELS.

CEO LETTER

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2017 ENERGY STAR Labels NYC

1. 100 Church Street 2. 100 Park Avenue 3. 11 Madison Avenue 4. 125 Park Avenue 5. 1350 AoTA 6. 1515 Broadway 7. 215 Park Avenue South (not shown) 8. 220 East 42nd Street 9. 3 Columbus Circle

6

10. 420 Lexington Avenue 11. 485 Lexington Avenue 12. 461 Fifth Avenue 13. 521 Fifth Avenue 14. 600 Lexington Avenue 15. 711 Third Avenue

RECKSON (not shown) 16. 1 International Drive 17. 2 International Drive 18. 4 International Drive 19. 1055 Washington Boulevard 20. 200 Summit Lake Drive 21. 500 Summit Lake Drive

5

9

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Environmental Sustainability EFFICIENCY STRATEGY

11 MADISON, ICE PLANT “PRODUCING ICE DURING THE NIGHT AND USING IT FOR COOLING DURING THE DAY REDUCES DAYTIME ELECTRICITY USE. THIS ALLEVIATES THE STRAIN ON THE ELECTRICAL GRID AND LOWERS ENERGY COSTS.”

Ralph DiDomenico Chief Engineer, 11 Madison Avenue SL Green Realty Corp.

$14.3 MILLION IN LIFETIME SAVINGS 1.4 MILLION POUNDS OF CARBON AVOIDED

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OCCUPANCY SENSORS Occupancy sensors in our portfolio provide foot traffic analytics. This allows the building engineers to adjust space conditions to maxi- mize efficiency and tenant comfort.

ENERGYDESK “Our real-time energy management platform, EnergyDesk, facilitates direct building communication with the Grid, our tenants, and ConEd, equipping our engineering staff with the ability to be responsive to the dynamic needs of New York City.”

Richard Currenti Senior Vice President, Director of Engineering SL Green Realty Corp.

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Environmental Sustainability PARTNERING WITH OUR TENANTS

Building long-lasting relationships with tenants is at the heart of SL Green’s business, beginning with a commitment to support their environ- mental initiatives through data transparency and green operational standards. SL Green’s team is positioned to assist tenants in pursuing LEED

and WELL certifications, incentives, and energy saving opportunities. Sustainability goals are achieved when landlords and tenants have shared accountability and a commitment to corporate responsibility.

BLOOMBERG 919 THIRD AVENUE

Bloomberg integrates sustainability into every aspect of its business, including waste management. Bloomberg has established an aggressive goal of diverting 90% of waste from landfill by 2020. Compost of organic waste is vital in order to achieve this goal. SL Green has instituted a unique operational schedule to accommodate Bloombergʼs composting program at 919 Third Avenue.

WITH OVER 100,000 NEW YORKERS WORKING THROUGHOUT SL GREENʼS PORTFOL IO, TENANT PARTNERSHIPS ARE FUNDAMENTAL .

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COHNREZNICK CAPITAL 420 LEXINGTON AVENUE

Through NYSERDAʼs Commercial Tenant Program, SL Green was able to provide a free energy analysis for our tenant at 420 Lexington Avenue, CohnReznick Capital—a renewable energy investment bank. Further strengthening their commitment to sustainability, we provided actionable insights, identified savings opportuni- ties, and introduced technologies allowing their office to achieve greater operational excellence.

NY GREEN BANK To implement the savings opportunities identified through NYSERDAʼs Commercial Tenant Program, SL Green is facilitating financing options for its tenants. SL Green is working with the NY Green Bank to mobilize private capital for efficiency initiatives and technologies to be implemented in tenant spaces.

UN WOMEN 220 EAST 42ND STREET

Beginning their journey in April 2013, UN Women established the goal of achieving a LEED Commercial Interiors (CI) certification in their office space. Completion of UN Womenʼs 4th floor office renovation in 2018 made UN Women the first tenant at 220 East 42nd Street— a U.S. national historic landmark building—to receive a LEED CI Certification. This achievement was made possible because SL Green pursued a base building LEED certifica- tion, which contributed the final five points required to make the UN Womenʼs LEED certification official.

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

OUR VISION FOR SOCIAL RESPONSIBILITY

At SL Green, employees are our greatest asset and are integral to the Company's success. We champion the growth of our people to their highest potential by offering a wide array of opportunities for education, training, and volunteerism. Employees are happiest, healthiest, and most productive when immersed in a work culture that prioritizes wellness and community. As the interest for social engagement has grown, so has our commitment to shaping the workplace of the future. Our collective vision is to build a greater New York and leverage our sphere of influence to inspire altruism.

SL Green employees have been endowed with the time and resources to contribute significantly to the advancement of New York City. Our role as an active player in the development of both our skyline, and the greater New York community, confers a shared sense of fulfillment that unifies our people.

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Lynne-Courtney Hodges Vice President of Human Resources SL Green Realty Corp.

“TO ATTRACT AND RETAIN A BEST-IN-CLASS TEAM, WE FOCUS ON TOTAL WELLNESS. THAT MEANS HEALTH, EDUCATION, COMMUNITY ENGAGEMENT, AND DIVERSITY ARE AT THE FOREFRONT OF OUR PLANS.”

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Social Responsibility OUR PEOPLE

SL Green is focused on fostering a healthy work culture through talent attraction, professional development, and diversity and inclusion practices. Its success is a direct result of the Company’s best-in-class team and their dedication to excellence. SL Green is committed to workplace diversity in all its forms, with an employee population that reflects a microcosm of the city itself. Our workforce rep- resents this diversity across race, gender, and thought.

AN EMPLOYEE ENGAGEMENT SURVEY INDICATED THAT 90% OF EMPLOYEES ARE PROUD TO WORK FOR SL GREEN AND 91% ARE CONFIDENT THAT SL GREEN OPERATES IN A SOCIALLY RESPONSIBLE MANNER.

SL Green offers a robust benefits package that addresses physical, mental, and financial wellness as equally important parts of a whole. The Companyʼs approach to curating this suite of benefits holds employee feedback and fulfillment as a central consideration. SL Green conducts employee engagement surveys and uses employee feedback to enhance its existing offerings. These initiatives address paid time off policy, parental leave, and voluntary benefits. Recent feedback from employees resulted in the addition of a charitable contribution match program and employer-sponsored volunteer days for all employees. Additionally, environmentally conscious fund options were introduced to the Companyʼs 401(k) lineup, allowing SL Greenʼs team to align financial decisions with personal values.

CEO LETTER

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Corporate Personnel

Gender

Age

Male

Female

Less than 30 years old

30 – 50 years old

More than 50 years old

Total number of employees

159 159

147 147

69 69

161 161

76 76

Permanent Temporary Full-time Part-time

0

0

0

0

0

159

146

68

161

76

0

1

1

0

0

50% OF SL GREEN'S CORPORATE AND BUILDING PERSONNEL ARE REPRESENTED BY RACIAL MINORITIES

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Social Responsibility LIVING GREEN

The office of the future is not only sustainable and energy efficient, but it is also an environment that facilitates work-life balance and wellness for occupants. SL Green provides tenants with premier experiences. The result is Living Green, a program that offers a suite of wellness amenities including yoga, meditation, educational speak- ing events, and health-food pop-ups in partnership with Better Spaces. Through this program, standard office spaces will be redefined to create a culture of community, produc- tivity, and health.

220 EAST 42ND STREET

711 THIRD AVENUE

485 LEXINGTON AVENUE

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“OUR GOAL I S TO OFFER THE MOST AMENITIZED AND ADVANCED SPACES FOR TENANTS LOOKING TO GROW THEIR BUSINESS AND PROVIDE THEIR EMPLOYEES WITH A TOP-OF-THE-LINE WORK EXPERIENCE.”

420 LEXINGTON AVENUE

Steven Durels Executive Vice President, Director of Leasing and Real Property SL Green Realty Corp.

“LIVING GREEN IS IN LINE WITH THE TYPES OF AMENITIES THAT OUR EMPLOYEES REQUEST AND DESERVE."

635-641 AOTA

1185 AOTA

ABN AMRO Tenant 100 Park Avenue

110 GREENE STREET

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Social Responsibility COMMUNITY ENGAGEMENT Volunteerism and philanthropy are ingrained in SL Greenʼs ethos. SL Greenʼs events touch and inspire over 150,000 New Yorkers. Partnering with tenants extends SL Greenʼs reach and collectively makes a significant impact on the surrounding community.

AWARDED THE CHANGEMAKER AWARD BY THE NYC MAYORʼS OFFICE OF SERVICE IN RECOGNITION OF SL GREENʼS VOLUNTEERISM AND

PHILANTHROPIC EFFORTS (2018).

$1 MILLION IN CHARITABLE CONTRIBUTIONS

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130 EVENTS

900 CHILDREN AT BELLEVUE HOSPITAL RECEIVE SL GREENʼS TOY DONATIONS

2,000 POUNDS OF FOOD COLLECTED

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

OUR VISION FOR STRONG GOVERNANCE

SL Green conducts its business in accor- dance with the highest moral, legal, and ethical standards. Our reputation for integrity is the backbone of the public’s confidence in our Company. Itʼs no longer enough to focus solely on finan- cial performance. Management must address all material environmental, social, and gover- nance issues that affect our business. We at SL Green hold ourselves to the highest stan- dard through regulatory compliance, policies, and stakeholder engagement.

Companies are expected to epitomize corpo- rate citizenship and adopt socially responsible practices. Building meaningful relationships with our stakeholders is earned through clear and open communication, which is an integral component to our governance strategy. There is a shared accountability among SL Green’s employees to operate in accor- dance with the highest level of ethics.

Edward V. Piccinich Chief Operating Officer SL Green Realty Corp.

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“TRUST FROM OUR STAKEHOLDERS IS BUILT ON TRANSPARENCY.”

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Strong Governance MANAGEMENT PRINCIPLES

SL Greenʼs risk management framework is built on sound governance. Policies governing environmental, social, and governance topics ensure SL Greenʼs operations balance financial responsibility with corporate citizenship. Additional policies can be accessed from SL Greenʼs website: www.slgreen.com/sustainability.

EMBRACING STEWARDSHIP OF THE ENVIRONMENT

ENSURING THE WELL-BEING OF STAKEHOLDERS, EMPLOYEES, AND TENANTS

EMISSIONS REDUCTION SL Greenʼs commitment to creating a greener footprint includes reducing emissions across our properties. We work with tenants, employees, and other stakeholders to realize these goals by setting targets, providing resources, building awareness, supplying tools, creating effective monitoring strategies, and monitoring our progress and achievements. SL Green has set a target for a 30% intensity reduction in Scope 1, 2, and 3 (down- stream) CO 2 e per square foot, with a baseline of 2012, and a target year of 2025. EFFICIENT USE OF NATURAL RESOURCES SL Green is committed to environmentally sustainable initiatives and innovation that deliver energy and natural resource efficiency. We continue to introduce a broad platform of market-leading initiatives to address energy usage and natural resource consumption that deliver value for our business, tenants, and community. CREATING ENVIRONMENTAL AWARENESS SL Green is committed to regularly promoting environ- mental awareness among our tenants, employees, industry, local communities, and other stakeholders.

DIVERSITY SL Green cultivates a diverse workforce that is inclusive and encourages employees to collaborate and contribute, regardless of race, color, religion, national origin, sex, sexual orientation, age, disability, veteran status, or other characteristic protected by law. HEALTH AND SAFETY SL Green is committed to protecting, and aims to improve, the health, safety, and well-being of our employees, tenants, vendors, and communities through active engagement, education, and deployment of various programs and resources. COMMUNITY INVOLVEMENT This entails proactively connecting our properties to the local community and engaging with, and incorporating feedback from, city and neighborhood leaders, law enforcement, transportation and public safety officials, planners, local business groups, chambers of commerce, schools, libraries, charities, resident associations, and philanthropies.

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IMPLEMENTING SOUND GOVERNANCE PRACTICES

SHAREHOLDER ENGAGEMENT As per the rules of the Securities and Exchange Commission, stockholders are permitted to submit proposals to be included in our proxy materials if the stockholder and the proposal satisfy the requirements specified in Rule 14a-8 under the Exchange Act. WHISTLEBLOWER PROGRAMS SL Greenʼs Board Audit Committee has established procedures for the receipt, retention, and treatment of complaints received regarding accounting, internal accounting controls, or auditing matters and the confidential and anonymous submission by our employees of concerns regarding questionable accounting or auditing matters. DATA PRIVACY SL Green is committed to guard the personal information shared with us to ensure the content and services that we provide are always tailored to a userʼs current, designated preferences. SL Green does not offer or allow the selling of any user-provided information to third parties.

BUSINESS ETHICS SL Greenʼs Code of Business Conduct and Ethics addresses compliance with applicable laws, conflicts of interest, use and protection of the Companyʼs assets, confidentiality, as well as communications with the public, accounting matters, records retention, fair dealing, discrimination, harassment, and health and safety. ANTI-BRIBERY AND CORRUPTION SL Green is committed to operating our business in accordance with the highest moral, legal, and ethical standards. No employee should ever receive a payment or anything of value in exchange for a decision involving the Companyʼs business, and no employee should offer anything of value to government officials or others to obtain a particular result. FAIR COMPETITION SL Green is committed to dealing fairly with its tenants, contractors, suppliers, employees, and other third parties.

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

Strong Governance STAKEHOLDER ENGAGEMENT

SL Green identifies stakeholders as those who affect SL Greenʼs business, and those who are potentially affected by the business. The following table includes examples of topics raised by SL Greenʼs stakeholders:

Stakeholder

Engagement Frequency

Engagement

Topics Raised

Group

Method

Board of Directors

Annual

  Sustainability Report

Energy, Emissions, Water, Effluents and Waste, Local Community, Economic Performance, Environmental Compliance, Socioeconomic Compliance Freedom of Association and Collective Bargaining, Diversity, Nondiscrimination, Equal Pay, Occupational Health and Safety, Employment, Training and Education, Child Labor, Forced or Compulsory Labor,

  Institutional Investor Conference

  Annual Presentation

Employees

Ongoing

  Annual Company Luncheon   Employee Satisfaction Survey   Ongoing Program Updates   Training and Education

  Volunteerism

Labor/Management Relations

Executive Team

Monthly

  Annual Presentation

Energy, Emissions, Water, Effluents and Waste, Local Community, Economic Performance, Environmental Compliance, Socioeconomic Compliance

  Institutional Investor Conference   Quarterly Status Reports

  Sustainability Report

Industry Peers

Ongoing

  Joint Ventures

Energy, Emissions, Water, Environmental Compliance, Effluents and Waste, Public Policy, Local Community, Customer Privacy, Economic Performance, Indirect Economic Impacts

  Sustainability Committees   Trade Associations

Investors

Ongoing

  Annual Report & 10-K   Proxy Statement   Sustainability Report   Updates published to slgreen.com/sustainability

Economic Performance, Anti-corruption, Environmental Compliance, Socioeconomic Compliance, Diversity

Local Community

Ongoing

  Philanthropy   Volunteerism

Energy, Emissions, Water, Effluents and Waste, Indirect Economic Impacts, Local Community, Biodiversity,

  Business Improvement Districts

Public Policy

  Civic Engagement

Sustainability Consultant

Ongoing

  Energy Management   Green Building Certification   Sustainability Policy Development

Energy, Emissions, Water, Environmental Compliance, Effluents and Waste, Public Policy, Supplier Environment

Assessment

Tenants

Ongoing

  Town Hall Meetings   Tenant Satisfaction Survey   Newsletter and Webinar   Green Building Certification

Security, Customer Health and Safety, Materials, Energy, Emissions, Procurement Practices, Customer Privacy

CEO LETTER

KEY ACHIEVEMENTS

ENVIRONMENTAL

SOCIAL

GOVERNANCE

PAGE 35

Strong Governance MATERIALITY

In 2017, SL Green performed a complete materiality assessment that was informed by stakeholder engagement processes. SL Green determined that the topics identified as material to the Company increased from 2016 to 2017. A detailed description of the materiality assess- ment process is presented below. SL Greenʼs materiality assessment involved highlighting the sustainability topics that were most meaningful to stakeholders and relevant to the company. To initiate the materiality process and substantiate the chosen material topics, SL Green engaged priority stakeholders in 2017 and

continues to engage stakeholders on an ongoing basis. While targeted engagement was not undertaken solely for the purpose of this report, ongoing stakeholder engagement continues to inform reporting content. As part of the materiality assessment, a quantitative analysis was performed to rank all aspects based on impor- tance to, and potential impact on, SL Green and priority stakeholders. SL Green chose to include the material topics—those which fell in the top quartile of the materiality matrix—and an assortment of nonmaterial topics—those which

fell outside the top quartile but were nevertheless important to the Company and its stakeholders. The SL Green executive team reviewed the topics and approved the inclu- sion of them in this yearʼs report. The topics cover environmental, social, and governance aspects and include several metrics from the real estate sector supplement. The chosen aspects were then paired with the respective GRI key perfor- mance indicators in the materiality matrix below:

Energy; Emissions; Occupational Health and Safety; Socioeconomic Compliance; Economic Performance; Environmental Compliance

Anti-competitive Behavior; Anti-corruption; Public Policy

Water; Effluents and Water; Local Community; Customer Health and Safety; Security Customer Privacy; Equal Pay; Training and Education; Freedom of Association and Collective Bargaining;

Human Rights Assessment; Supplier Social Assessment; Child Labor; Forced or Compulsory Labor

Materials; Data Privacy

Indirect Economic Impacts; Labor/ Management Relations; Employment

Diversity; Non- discrimination

Market Presence; Marketing and Labeling

Procurement Practices; Supplier Environmental Assessment; Biodiversity

Impact of SL Green

SL GREEN REALTY CORP. 2018 SUSTAINABILITY REPORT

About This Report This is SL Greenʼs sixth annual sustainability report, which covers the 2017 calendar year. This report is “In Accordance—Core” with the GRI Standards framework and includes disclosures from the Construction and Real Estate (CRE) Sector Supplement. The GRI Content Index can be found at www.slgreen.com/sustainability. SL Green collected available data from all properties listed in which the Company maintains direct operational control, including those in New York City and in the greater New York metropoli- tan area. Data from subsidiaries, leased facilities, outsourced operations, and other entities are not included in this report. In order to compile a complete and accurate set of data to report on environmental performance, SL Green hired Sustainable Investment Group, a sustainability consulting firm, to collect, analyze, and report on each data metric. Sustainable Investment Group worked with SL Green management and building staff, service providers, and utilities to collect data for energy and water consumption, greenhouse gas (GHG) emissions, and waste data. The GHG inventory process was performed in accordance with quantification methodologies of the GHG Protocol. Data collection methods are shown below. After all data was collected, Sustainable Investment Group converted the energy consumption quantities into carbon emissions using industry standard emissions factors and global warming potentials published by the GHG Protocol. If any data was not available, estimates were used as needed. Data was collected by requesting aggregate utility data from Consolidated Edison that captured all energy used by each property. In addition, tenant utility data was collected directly from the tenants via direct meters and/or submeters. Scope 1 consumption and emissions were calculated by taking the aggregate on-site emissions factors (fuel oil, natural gas, and refrigerant) and removing tenant fuel and refrigerant usage found in Scope 3. Scope 2 consumption and emissions were calculated in similar fashion by subtracting the tenant distributed energy (electricity and steam)

Reporting Properties   10 East 53rd Street   100 Church Street   100 Park Avenue   11 Madison Avenue   110 East 42nd Street   1185 AoTA   125 Park Avenue   1350 AoTA   1515 Broadway   220 East 42nd Street   304 Park Avenue South   420 Lexington Avenue   461 Fifth Avenue   485 Lexington Avenue   521 Fifth Avenue   555 West 57th Street   625 Madison Avenue   711 Third Avenue   750 Third Avenue   810 Seventh Avenue   919 Third Avenue   100 Summit Lake Drive   1010 Washington Boulevard   1055 Washington Boulevard   200 Summit Lake Drive   360 Hamilton Avenue   500 Summit Lake Drive   King Street Buildings 1-6   Landmark Square Buildings 1-7   635 AoTA   641 AoTA

from the total electricity and steam usage found in aggregate building data. Scope 3 consump- tion and emissions were calculated by taking the aggregate on-site emissions factors (fuel oil, natural gas, and refrigerant) as well as aggregate distributed energy (electricity and steam) and removing base building fuel, refrigerant, electricity, and steam usage. Waste amounts were determined by taking the total waste removed from the site and the individual diversion quantities reported from the waste hauler on a monthly basis. The waste diversion was calculated by taking the total diverted amount for the year and dividing by the sum of landfill plus diverted waste for the year. Water data was collected by gathering aggregate water data. Refrigerant emissions were calculated by collecting a list of equipment within each building and the refrigerant capacity of the system as well as any leaks. If a piece of equipment did not have leaks, a 0.5% leakage rate was assumed to match LEED O+M standard. The square footage of each building was sourced from the reported gross square footage of each building as reported in annual Benchmarking Report under Local Law 84. The 2017 environmental performance (energy, water, waste, and emissions) of the portfolio was compared with 2016 environmen- tal performance. Data collection methodologies were unchanged between these two years, but there were a few differences with the emissions calculations. The first was the use of an updated emissions factor for district steam from the utility. The second difference is that refrigerant emissions were calculated using actual leakage or a minimum of 0.5% per LEED O+M requirements. The contact person for this report is Laura Vulaj, Senior Vice President, Operations and Director of Sustainability (laura.vulaj@slgreen.com).

About SL Green SL Green Realty Corp., an S&P 500 company and New York Cityʼs largest office landlord, is a fully integrated real estate investment trust, or REIT, that is focused primarily on acquiring, managing and maximizing value of Manhattan commercial properties. As of June 30, 2018, the Company held interests in 116 Manhattan buildings totaling 49.3 million square feet. This included ownership interests in 28.3 million square feet of Manhattan buildings and debt and preferred equity investments secured by 21.1 million square feet of buildings. In addition, the Company held ownership interests in 21 suburban buildings totaling 2.9 million square feet in Brooklyn, Westchester County, and Connecticut as part of the Reckson portfolio. Reckson Associates Realty Corp., or Reckson, and Reckson Operating Partnership, L.P., or ROP, are wholly-owned subsidiaries of SL Green Realty Corp. SL Green incorporates Environmental, Social, and Governance considerations into all new investment decisions. As of December 31, 2017, SL Green had 1,065 full-time employees, 212 of whom were managers and professionals, 754 of whom were hourly-paid employees involved in building operations and 99 of whom were clerical, data processing, and other administrative employees.

SL Green Realty Corp. 420 Lexington Avenue, New York, NY 10170 212.594.2700 www.slgreen.com

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