Exhibit A
(as
of July 6, 2026)
Index Series of the Trust
| Index Series | Effective Date |
| First Trust STOXX European Select Dividend Index Fund (FDD) | 10/12/2010 |
| First Trust Alerian Disruptive Technology Real Estate ETF (DTRE) | 10/12/2010 |
| First Trust Dow Jones Global Select Dividend Index Fund (FGD) | 10/12/2010 |
| First Trust Global Wind Energy ETF (FAN) | 10/12/2010 |
| First Trust Alerian U.S. NextGen Infrastructure ETF (RBLD) | 10/12/2010 |
| First Trust NASDAQ® Clean Edge® Smart Grid Infrastructure Index Fund (GRID) | 10/12/2010 |
| First Trust Indxx Global Natural Resources Income ETF (FTRI) | 10/12/2010 |
| First Trust Indxx Global Agriculture ETF (FTAG) | 10/12/2010 |
| First Trust Indxx NextG ETF (NXTG) | 02/15/2011 |
| First Trust S-Network Future Vehicles & Technology ETF (CARZ) | 05/06/2011 |
| First Trust Cloud Computing ETF (SKYY) | 07/05/2011 |
| First Trust International Equity Opportunities ETF (FPXI) | 10/10/2014 |
| First Trust NASDAQ Cybersecurity ETF (CIBR) | 07/02/2015 |
| First Trust IPOX® Europe Equity Opportunities ETF (FPXE) | 10/01/2018 |
| First Trust Dow Jones International Internet ETF (FDNI) | 10/31/2018 |
| First Trust Indxx Metaverse ETF (ARVR) | 03/04/2022 |
| First Trust Nasdaq Lux Digital Health Solutions ETF (EKG) | 03/07/2022 |
| First Trust Bloomberg Emerging Market Democracies ETF (EMDM) | 02/24/2023 |
| First Trust Emerging Markets Human Flourishing ETF (FTHF) | 10/27/2023 |
| First Trust Bloomberg Artificial Intelligence ETF (FAI) | 10/25/2024 |
| First Trust Bloomberg Nuclear Power ETF (RCTR) | 07/15/2025 |
| First Trust Indxx Critical Metals ETF (FMTL) | 10/31/2025 |
| First Trust Bloomberg Space Economy ETF (FSPC) | 07/06/2026 |