Tantalus Participates in Closing Ceremony at Toronto Stock Exchange

Burnaby, British Columbia--(Newsfile Corp. - May 28, 2021) - Tantalus Systems Holding Inc. (TSX: GRID) ("Tantalus" or the "Company"), a smart grid technology company, will be celebrating the Company's recent graduation to the TSX by virtually ringing the closing bell at the Toronto Stock Exchange today.

"We truly appreciate the TMX Group including Tantalus in the closing ceremony of the TSX. Our graduation to the big board on May 10^th marked another major milestone for our team as we continue to proactively improve the profile of our organization and seek to expand our access to investors to accelerate the growth trajectory of our business," said Peter Londa, President & CEO of Tantalus.

About Tantalus

Tantalus is a smart grid technology company that transforms aging one-way grids into future-proofed multi-directional grids that improve the efficiency, reliability and sustainability of public power and electric cooperative utilities and the communities they serve. Our solutions are purpose-built to allow utilities to restore power quickly after major disruptions, adapt to rapidly shifting consumer expectations and population shifts, innovate new solutions based on the adoption of distributed energy resources and evolve their grid infrastructure at their own pace without needless cost or complexity. All this gives our user community the flexibility they need to get the most value from existing infrastructure investments while planning for future requirements.

Contact Tantalus:

Jacquie Hudson
Marketing Communications Manager
Tantalus Systems Inc.
613-552-4244 | [email protected]

Investor Relations:
Linda Armstrong
Investor Relations
647-456-9223 | [email protected]

Website: www.tantalus.com

LinkedIn: LinkedIn/company/tantalus

Twitter: @TantalusCorp

Forward Looking Statements:

Neither the TSX nor its Regulation Services Provider (as that term is defined in the policies of the TSX) accepts responsibility for the adequacy or accuracy of this news release.

This news release contains "forward-looking information" within the meaning of applicable securities laws. Forward-looking information is generally identifiable by use of the words "believes", "may", "plans", "will", "anticipates", "intends", "could", "estimates", "expects", "forecasts", "projects" and similar expressions, and the negative of such expressions. Forward-looking information in this news release includes statements regarding: the adoption and development of new products and offerings, the ability to attract customers accessing government stimulus funding, the impact of supply chain constraints and the growth of the Company's user community.

In connection with the forward-looking information contained in this news release, Tantalus has made numerous assumptions, regarding, among other things: the expected impact of COVID-19 and the expected timing of new product introductions. While Tantalus considers these assumptions to be reasonable, these assumptions are inherently subject to significant uncertainties and contingencies. Additionally, there are known and unknown risk factors which could cause Tantalus' actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information contained herein. Known risk factors include, among others: the impacts of COVID-19 are unpredictable and could have significant impacts on Tantalus' financial performance; sales cycles to Tantalus' customers can be lengthy and unpredictable and require significant employee time with no assurances that a prospective customer will select Tantalus' products and services; Tantalus' financial and operational performance significantly depends on its ability to attract and retain customers and its ability to develop new products and to enhance and sustain the quality of existing products to retain such customers; Tantalus depends on a limited number of key suppliers and if such suppliers fail to provide Tantalus with sufficient quantities of components at acceptable levels of quality and at anticipated costs, Tantalus' revenue and operating results could be materially and adversely affected; Tantalus has a prior history of operating losses and Tantalus may not sustain profitability on a quarterly or annual basis; Tantalus' quarterly results are inherently unpredictable and subject to substantial fluctuations; Tantalus' success depends in part on Tantalus' ability to integrate its technology into devices and its relationship with device manufacturers; Tantalus' marketing efforts depend significantly on Tantalus' ability to receive positive references from Tantalus' existing customers; the markets for Tantalus' products and services, smart grid, smart city, and broader IoT technology in general, are still developing - if the markets develop less extensively or more slowly than Tantalus expects, Tantalus' business could be harmed; Tantalus operates in a highly competitive industry and Tantalus competes against many companies with substantially greater financial and other resources, and Tantalus' market share and results of operations may be reduced if Tantalus is unable to respond to competitors effectively; Tantalus is dependent on the utility industry, which has experienced volatility in capital spending - this volatility could cause Tantalus' results of operations to vary significantly from period to period; Tantalus' reliance on certain infrastructure and information technology systems make it vulnerable to the potential adverse effects of cyber-attacks and other breaches; if Tantalus' products contain defects or otherwise fail to perform as expected, Tantalus could be liable for damages and incur unanticipated warranty, recall and other related expenses, Tantalus' reputation could be damaged, Tantalus could lose market share and, as a result, Tantalus' financial condition or results of operations could suffer; the nature of Tantalus' business exposes it to the unpredictable risks of contractual disputes; the loss of key employees and the inability to attract and retain qualified personnel could harm Tantalus' business; Tantalus' business is exposed to potential risks associated with international sales and operations; foreign exchange rate fluctuations could harm Tantalus' results or operations; Tantalus and its customers operate in a highly regulated business environment and changes in regulation could impose costs on Tantalus or make Tantalus' products less economical; Tantalus' inability to acquire and integrate other businesses, products or technologies could seriously harm Tantalus' competitive position; intellectual property infringement claims could be costly and time-consuming to prosecute or defend; substantially all of Tantalus' current products depend on the availability and are subject to the regulation of radio spectrum in the United States and abroad; and interruptions or delays in services from Tantalus' third-party data center facilities, or problems with the third-party hardware or software that Tantalus employs, could impair the delivery of its services and harm Tantalus' business.

A more complete discussion of the risks and uncertainties facing Tantalus is disclosed under the heading "Risk Factors" in the Tantalus' Filing Statement dated January 28, 2021, as well as the MD&A included with Tantalus' continuous disclosure filings with Canadian securities regulatory authorities available at www.sedar.com. All forward-looking information herein is qualified in its entirety by this cautionary statement, and Tantalus disclaims any obligation to revise or update any such forward-looking information or to publicly announce the result of any revisions to any of the forward-looking information contained herein to reflect future results, events or developments, except as required by law.

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/85708