Metric Description Metric Quantity Fiscal 2015 Total Energy Consumed (kwh) 7,299,965

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2 Appendix A Management Statement Regarding Etsy Inc. s Total Energy Consumed and Scope 1 (direct) and Scope 2 (indirect) Greenhouse Gas (GHG) Emissions Inventory for the year ended December 31, 2015 Overview Etsy is responsible for the completeness and accuracy of the selected metrics (the metrics ) contained in this assertion, presented in Etsy s 2015 Progress Report for the Fiscal Year ending December 31, Management is responsible for the collection, quantification and presentation of the metrics for Etsy s corporate and operational activities from the portion of space leased, which is twelve offices and four data centers occupied between January 1, 2015 and December 31, 2015 and for the criteria used in determining that the information is appropriately disclosed. With respect to the metrics in Etsy s 2015 Progress Report identified below and denoted by an asterisk (*) in such report, the management of Etsy asserts that such sustainability metrics are presented in conformity with the assessment criteria set forth below. Metric Description Metric Quantity Fiscal 2015 Total Energy Consumed (kwh) 7,299,965 Scope 1 GHG Emissions (MT CO 2e) 172 Scope 2 GHG Emissions (MT CO 2e) 2,340 Total Scope 1 and Scope 2 GHG Emissions 2,512 (MT CO 2e) Etsy uses the principles and guidance of the World Resources Institute and the World Business Council for Sustainable Development s Greenhouse Gas Protocol Initiative s Corporate GHG Accounting and Reporting Standard, Revised (the GHG Protocol ), a recognized external standard, to calculate and report direct and indirect GHG emissions. Metric tonnes of CO2e gas are 2,500 MT, 0.08 MT, 0.03 MT, and 0 MT of CO2, CH4, N2O, and HFC, respectively. Note: The World Resources Institute (WRI) and World Business Council on Sustainable Development (WBCSD) issued additional guidance for Scope 2 emissions in 2015 (in GHG Protocol Scope 2 Guidance, An amendment to the GHG Protocol Corporate Standard), which sets forth reporting under both location-based and market-based methodologies, where the prior version of the GHG Protocol only addressed a location-based methodology. Etsy is currently implementing a process which will allow for complete and accurate reporting under both location based and market based methodologies. However, for the 2015 GHG reporting, Etsy is using the location based approach only. Organizational Boundary Etsy is using the operational control approach in conformance with the GHG Protocol, to report our direct and indirect energy consumption as well as our GHG emissions from our leased space, which includes twelve offices and four data centers leased by Etsy between January 1, 2015 and December 31,

3 Scope of Metrics Scope 1 includes direct GHG emissions from natural gas, fuel oil, biogas and refrigerant gas loss. Scope 2 includes indirect GHG emissions from the generation of purchased electricity, heat and steam generated off-site. CFC s and HCFC refrigerants are not included in Etsy s GHG inventory; they are considered optional information to be reported separately from Scope 1 and Scope 2 GHG emissions per the GHG Protocol. In order to provide the most accurate estimate of Etsy s GHG emissions, primary data provided by third party invoices was used where available, up to date and geographically relevant. Secondary data in the form of estimates, extrapolations and industry averages was used when primary data was not available. Greenhouse gas emissions associated with energy use in Etsy s facilities have been calculated using energy consumption data or gas loss, multiplied by the relevant greenhouse gas emission factors for carbon dioxide, methane and nitrous oxide emissions. See our Emissions Factors and Estimations sections below for details. GHG Emission Factors Carbon dioxide emissions and equivalents have been determined on the basis of measured or estimated energy and fuel usage, multiplied by relevant carbon emission factors and for carbon dioxide equivalent emissions taking into account relevant global warming potentials. Emission Source Scope 1, United States Emissions Source Type Fuel Oil Emission Factor Employed EIA (2013). Carbon Dioxide Emissions Coefficients by Fuel. Released February 14, Online: ass.cfm. EPA (2014). GHG Emission Factors Hub. Center for Corporate Climate Leadership. April Accessed May Scope 1, Europe Fuel Oil Defra/DECC (2015). UK Government conversion factors for greenhouse gas reporting. Department of Environment Food and Rural Affairs/Department for Energy and Climate Change, London. Scope 1, United States Natural Gas EPA (2014). GHG Emission Factors Hub. Center for Corporate Climate Leadership. April Accessed May EIA (2011). Voluntary reporting of Greenhouse Gases Program, Emission Factors and Global Warming Potentials. Online: ml. Updated 31/01/2011 Scope 1, Europe Natural Gas Defra/DECC (2015). UK Government conversion factors for greenhouse gas reporting. Department of Environment Food and Rural Affairs/Department for Energy and Climate Change, London. 3

4 Scope 1, Global Refrigerant Gas Loss IPCC (2007). IPCC Fourth Assessment Report: Climate Change Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge. Scope 1, Global Biogas IPCC (2006). Revised IPCC Guidelines for National Greenhouse Cambridge University Press, Cambridge. Scope 2, Global Scope 2, United States Scope 2, United Kingdom District Heat & Steam Etsy uses the 2006 revised IPCC Guidelines for National Greenhouse Gas Inventories: Reference Manual from the Intergovernmental Panel on Climate Change to calculate emissions from district heat and steam. Etsy uses United States EPA egrid sub-region emission factors for electricity purchased in the U.S. Electricity emission factors are updated annually based on the most current data available. In this report Etsy applied EPA 2015 egrid 2012 data. Defra/DECC (2015). UK Government conversion factors for greenhouse gas reporting. Department of Environment Food and Rural Affairs/Department for Energy and Climate Change, London. Scope 2, Ireland IEA (2015). Statistics. Scope 2, Ireland Scope 2, Germany Electricity and steam from St. James' Gate natural gas fired CHP Fingleton White (2016). correspondence with St. James' Gate CHP plant's managing engineering firm. IEA (2015). Statistics. Scope 2, France IEA (2015). Statistics. 4

5 Scope 2, Australia IEA (2015). Statistics. Scope 2, Ontario EC (2015). National Inventory Report. Greenhouse gas sinks and sources in Canada: Environment Canada. Uncertainty GHG quantification is subject to inherent uncertainty because of such things as emissions factors that are used in mathematical models to calculate emissions and the inability of those models, due to incomplete scientific knowledge and other factors, to precisely characterize under all circumstances the relationship between various inputs and the resultant emissions. Environmental and energy use data used in GHG emissions calculations are subject to inherent limitations, given the nature and the methods used for determining such data. The selection of different but acceptable measurement techniques may result in materially different measurements. Estimation Methodology In 2015, the GHG emissions were 56% estimated data, 35% mixed data (actual data with gaps where estimates were needed) and 9% actual data. We continue to work to increase the amount of actual energy data available at our sites. Energy Data Offices: Where available, annual energy consumption for offices was sourced preferentially from utility bills specific to Etsy's occupied spaces; any missing consumption in such cases - either temporally or from certain meters - was estimated as follows: Where specific days or meter information was not available for a specified time, but Etsy received some actual 2015 data, the missing data was estimated using either monthly or daily average consumption rate. Where consumption specific to Etsy-occupied space was not available, a portion of total building energy consumption was allocated to Etsy using area of the building occupied. For facilities where no energy consumption data was available, relevant energy was estimated using either consumption from the previous year or office area and researched intensity values1 specific to the energy type and location in question. 1: In 2015 researched intensity metrics were applied to the Toronto office for district heating using data from the Energy Information Administration (2008), 2003 Commercial Buildings Energy Consumption Survey (CBECS). Available online: 5

6 Energy Data Data Centers: Etsy estimated overhead energy data derived from server consumption and Power Usage Effectiveness (PUE) from the total building provided by the landlord. If PUE data is not available at one location, Etsy will take an average of the other actual PUE data points to estimate the overhead. Fuel Oil Data: At Etsy s ALM Paris office, the heating source was confirmed to be a fuel tank in the basement, which used domestic fuel. Emissions were assumed equivalent to that of heating oil (Defra/DECC 2015), which is used in heating systems. CHP Plant Data: Etsy s lease for the Digital Exchange office ended February 21, 2015; as a result of Etsy leaving this space, there was no actual consumption data available for the <2 months operations during the assessment period. Therefore, electricity and district heating consumption from the CHP plant at the Dublin brewery facility were estimated from historical 2014 consumption using an average consumption per day figure specific to each energy type applied to the operational period. Exclusions Each year we aim to increase the quality of the data reported. As tenants of leased facilities, we do not yet have access to data related to heat source or generator diesel use in our data centers, the heat source in our new Brooklyn office, complete refrigerant sources2 and our shared building common spaces energy sources. We are pursuing this data for future reports. 2: We did not have sufficient refrigerant source data to estimate refrigerant gas loss for our San Francisco, Dublin, Berlin and Brooklyn offices and three data centers in Our Hudson, Toronto, London, Melbourne and Paris offices all confirmed no refrigerant gas loss during this time or no A/C system on site. 6