<div id="readability-page-1"><div>ARQ SHAREHOLDER ALERT: Investors Encouraged to Contact Kirby McInerney LLP About Potential Securities Laws Violations The law firm of Kirby McInerney LLP reminds investors its investigation on behalf of Arq, Inc. (“Arq” or the “Company”) (NASDAQ:ARQ) investors concerning the Company’s and/or members of its senior management’s possible violation of the federal securities laws or other unlawful business practices. [LEARN MORE ABOUT THE INVESTIGATION] What Happened? On March 9, 2026, that it decided to “pause GAC production to conduct a comprehensive engineering and production process optimization review of the path forward for the Company’s GAC business. As a result, the Company does not expect any GAC production in fiscal year 2026.” On this news, the price of Arq shares declined by $1.56 per share, or approximately 48.8%, from $3.20 per share on March 9, 2026 to close at $1.64 on March 10, 2026. What Should I Do? At this stage, no lawsuit has been filed. The investigation is ongoing to determine whether claims may be brought under federal securities laws. If you purchased or otherwise acquired Arq securities, have information, or would like to learn more about this investigation, please contact Lauren Molinaro of Kirby McInerney LLP by email at investigations@kmllp.com, or fill out the contact form below, to discuss your rights or interests with respect to these matters at no cost. [LEARN MORE ABOUT SECURITIES CLASS ACTIONS] Kirby McInerney LLP is a New York-based plaintiffs’ law firm concentrating in securities, antitrust, whistleblower, and consumer litigation. The firm’s efforts on behalf of shareholders in securities litigation have resulted in recoveries totaling billions of dollars. Additional information about the firm can be found at Kirby McInerney LLP’s website. This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules. <img src="https://imageproxy.pbkrs.com/https://cts.businesswire.com/ct/CT/query-ZGlzdHJvPW54JmlkPWJ3bmV3cyZsYW5nPWVuJnNpZD1tc3RyMyZzdHk9MjAyNjAzMjUxOTg2MjlyMQ?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg" original-src="https://imageproxy.pbkrs.com/https://cts.businesswire.com/ct/CT/query-ZGlzdHJvPW54JmlkPWJ3bmV3cyZsYW5nPWVuJnNpZD1tc3RyMyZzdHk9MjAyNjAzMjUxOTg2MjlyMQ"/> Kirby McInerney LLP Lauren Molinaro, Esq. 212-699-1171 https://www.kmllp.com https://securitiesleadplaintiff.com/ investigations@kmllp.com View source version on businesswire.com: https://www.businesswire.com/news/home/20260325198629/en/</div></div>

Kirby McInerney LLP 正在調查 Arq, Inc.（NASDAQ:ARQ）可能違反證券法的情況，此前該公司宣佈暫停 GAC 生產後，股價大幅下跌。2026 年 3 月 9 日，Arq 的股價下跌了約 48.8%，從 3.20 美元降至 1.64 美元。目前尚未提起訴訟，但鼓勵投資者聯繫該公司以獲取有關其權利和利益的更多信息

ARQ 股東警示：鼓勵投資者聯繫 Kirby McInerney LLP，瞭解可能存在的證券法違規行為