February 2024 | Arq Rings the NASDAQ Opening Bell to Complete Rebrand

On February 1, 2024 the Arq leadership team led the opening bell ceremony at Nasdaq to celebrate the Company’s rebrand and first day of trading on Nasdaq under the new ticker symbol “ARQ”.“Today is a very exciting day for Arq as we celebrate the 1-year anniversary of our transformational acquisition with a successful corporate rebrand and the honor of opening the U.S. stock markets for trading by ringing the Nasdaq opening bell,” said Bob Rasmus, Chief Executive Officer of Arq. “Our new name and logo reflect our commitment to our strategic expansion plan and transformation to a leading supplier of purification solutions with a growing focus on granular activated carbon. As we embark on a new chapter with a refreshed identity, our core mission remains unchanged: becoming the safest, most cost-effective and most profitable provider of activated carbon solutions. Our customers will continue to know and rely on us as an innovative and trusted solutions partner that helps to achieve their emissions targets today and well into the future.”The new Arq brand identity, logo and color palette were inspired by the Company’s focus on protecting the globe’s natural resources and meeting the needs of an ever-changing pollution control environment. To learn more about Arq, its portfolio of innovative emissions control Exhibit 99.1 technologies and corporate mission, please visit the Company’s newly launched website at www.arq.comhttps://vimeo.com/907640180