iSun, Inc. (Nasdaq: ISUN) (“ISUN” or the “Company”), a leading solar energy and clean mobility infrastructure company with 50-years of construction experience in solar, electrical and data services, announced today that iSun is set to join the Russell Microcap® Index at the conclusion of the 2021 Russell indexes annual reconstitution, effective after the US market opens on June 28, according to a preliminary list of additions posted June 4.

https://content.ftserussell.com/sites/default/files/russell_microcap_additions_-_2021.pdf

Membership in the Russell Microcap® Index, which remains in place for one year, means automatic inclusion in the appropriate growth and value style indexes. FTSE Russell determines membership for its Russell indexes primarily by objective, market-capitalization rankings and style attributes.

Jeffrey Peck, iSun’s Chief Executive Officer, commented, “We entered the public markets by a SPAC merger in 2019, and have successfully completed our deSPAC process with the redemption of all public warrants earlier this year. We recognized our immense opportunity in the renewable energy sector and set on a growth path in the public markets to execute our strategy of organic growth, accretive M&A, and asset ownership for recurring revenue. We have made substantial progress with our recently stated $81 million project backlog, our acquisition of iSun Energy is proving to be accretive, and our revenue generating asset portfolio is growing. We are very proud to be included in the Russell Microcap® Index as recognition that our growth efforts since 2019 have been producing positive results.”

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies. Approximately $10.6 trillion in assets are benchmarked against Russell’s US indexes. Russell indexes are part of FTSE Russell, a leading global index provider.

For more information on the Russell Microcap® Index and the Russell indexes reconstitution, go to the “Russell Reconstitution” section on the FTSE Russell website.

ABOUT iSun

Headquartered in Burlington, VT, iSun, Inc. (NASDAQ: ISUN) is a business rooted in values that align people, purpose, innovation, and sustainability. Ranked by Solar Power World as one of the leading commercial solar contractors in the United States, iSun provides solar energy and clean mobility infrastructure to customers for projects from smart solar mobile phone and electric vehicle charging to large utility renewable energy solutions. Since entering the renewable energy market in 2012, iSun has installed over 400 megawatts of rooftop, ground mount and EV carport solar systems (equal to power required for 76,000 homes). We continue to focus on profitable growth opportunities. For more information, visit www.isunenergy.com

ABOUT FTSE Russell:

FTSE Russell is a global index leader that provides innovative benchmarking, analytics and data solutions for investors worldwide. FTSE Russell calculates thousands of indexes that measure and benchmark markets and asset classes in more than 70 countries, covering 98% of the investable market globally.

FTSE Russell index expertise and products are used extensively by institutional and retail investors globally. Approximately $17.9 trillion is currently benchmarked to FTSE Russell indexes. For over 30 years, leading asset owners, asset managers, ETF providers and investment banks have chosen FTSE Russell indexes to benchmark their investment performance and create ETFs, structured products and index-based derivatives.

A core set of universal principles guides FTSE Russell index design and management: a transparent rules-based methodology is informed by independent committees of leading market participants. FTSE Russell is focused on applying the highest industry standards in index design and governance and embraces the IOSCO Principles. FTSE Russell is also focused on index innovation and customer partnerships as it seeks to enhance the breadth, depth and reach of its offering.

FTSE Russell is wholly owned by London Stock Exchange Group.

For more information, visit www.ftserussell.com.

FORWARD-LOOKING STATEMENTS

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, statements about (i) iSun’s plans, objectives, expectations and intentions and other statements contained in this press release that are not historical facts; and (ii) other statements identified by words such as “expects” “anticipates,” “intends,” “plans,” “believes,” “seeks,” “estimates,” “targets,” “projects,” or words of similar meaning generally intended to identify forward-looking statements. These forward-looking statements are based upon the current beliefs and expectations of the respective management of iSun and are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond the control of iSun. In addition, these forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change. Actual results may differ materially from the anticipated results discussed in these forward-looking statements because of possible uncertainties.