President — Travis Buchanan: The President and CRO departed as a direct result of the sale of the legacy business, with roles eliminated and no replacement needed for the remaining data center business.

Material Modification to Rights of Security Holders. The information set forth in

Completion of Acquisition or Disposition of Assets. The information set forth in

Termination of a Material Definitive Agreement. The information set forth in

Entry into a Material Definitive Agreement. On October 7, 2026, Zone Frontier Inc. f/k/a CleanCore Solutions, Inc. (the “Company”), entered into an Asset Purchase Agreement (the “Purchase Agreement”) with Sanzonate Holdings LLC, a Nevada limited liability company (the “Buyer”), pursuant to which the Company sold to the Buyer substantially all of the assets of the Company’s legacy business of developing and producing cleaning products that produce pure aqueous ozone for professional, industria…

Regulation FD Disclosure. On October 8, 2026, the Company issued a press release announcing the completion of the Disposition. A copy of the press release is furnished as Exhibit 99.2 to this Current Report on Form 8-K. The information in this Item 7.01, including Exhibit 99.2, is furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It shall not be…

Other Events. On September 29, 2026, the Company issued a press release announcing the execution of the Ground Lease. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Cautionary Note Regarding Forward-Looking Statements This Current Report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements regarding the ant…

Entry into a Material Definitive Agreement. On September 24, 2026, a subsidiary of Zone Frontier Inc., a Nevada corporation (the “Company” or “ZONE”), entered into a Ground Lease Agreement (the “Ground Lease”) with GKC Operating, LLC, a Texas limited liability company (the “Landlord”), covering approximately 4,077 acres of land in Potter County, Texas. The Ground Lease secures the land, water, and development rights for the Company’s West Texas data center campus, which is being developed in…

CFO — David Enholm: The CFO is retiring, which is an orderly succession event rather than a sudden loss or conflict-driven departure.

Entry into a Material Definitive Agreement. On August 11, 2026, CleanCore Solutions, Inc., a Nevada corporation (the “Company”), priced a best efforts public offering of 275,829,576 shares (the “Shares”) of the Company’s common stock, par value $0.0001 per share (“Common Stock”), pre-funded warrants to purchase up to 124,170,424 shares of Common Stock (the “Pre-Funded Warrants”) and accompanying warrants to purchase up to 400,000,000 shares of Common Stock (the “Investor Warrants” and, togeth…

Other Events. On July 29, 2026, the Company issued a press release announcing (i) the entry into the Colocation Services Agreement with Cerebras and (ii) the formation of the joint venture and entry into the Transaction Documents, all as described above. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Cautionary Note Regarding Forward-Looking Statements This Current Report on Form 8-K contains forward-looking statements within the meanin…

Entry into a Material Definitive Agreement. On July 23, 2026, CleanCore Solutions, Inc., a Nevada corporation (the “Company” or “ZONE”), entered into (i) a Contribution Agreement (the “Contribution Agreement”), (ii) a Limited Liability Company Agreement (the “LLC Agreement”), (iii) a Development Services Agreement (the “DSA”), and (iv) a Software License Agreement (the “License Agreement” and, together with the Contribution Agreement, the LLC Agreement, and the DSA, the “Transaction Documents…

Entry into a Material Definitive Agreement. On July 2, 2026, CleanCore Solutions, Inc., a Nevada corporation (the "Company" or "ZONE"), entered into a Contribution Agreement (the "Contribution Agreement"), a Limited Liability Company Agreement (the "LLC Agreement”), and a Master Platform Agreement (the “MPA" and, together with the Contribution Agreement and the LLC Agreement, the "Transaction Documents”) with HST Technologies, Inc., a Delaware corporation (“Platform Co”), and a Delaware limit…

Other Events. On July 9, 2026, the Company issued a press release announcing the closing of the transactions contemplated by the Transaction Documents. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. Cautionary Note Regarding Forward-Looking Statements This Current Report on Form 8-K contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements include, but are not limite…

Chief Financial Officer — David J. Enholm: Mr. Enholm voluntarily adjusted his salary and received RSUs as part of a compensation arrangement.

Entry into a Material Definitive Agreement. On June 8, 2026, CleanCore Solutions, Inc. (the “Company”) entered into a Controlled Equity Offering SM Sales Agreement (the “Sales Agreement”) with Cantor Fitzgerald & Co. (“Cantor”) and Curvature Securities LLC (“Curvature” and, together with Cantor, the “Agents”), pursuant to which the Company may offer and sell from time to time, through or to the Agents, up to an aggregate of $750,000,000 of the Company’s common stock, par value $0.0001 per sha…

Termination of a Material Definitive Agreement. In connection with the entry into the Sales Agreement, effective as of June 3, 2026, the Company terminated that certain Amended and Restated Sales Agreement, dated August 29, 2025, between the Company, Maxim Group LLC (“Maxim”) and Curvature (the “Prior ATM Agreement”), pursuant to a termination letter entered into by the Company, Maxim and Curvature (the “Termination Letter”). The Prior ATM Agreement provided for the offer and sale of shares o…

Other Events. Amended Business Plan The Company currently operates in two reportable segments. The CleanCore segment is the legacy cleaning products business where the Company has historically operated. As of September 5, 2025, the Company also operates its Treasury segment, which executes a digital-asset treasury strategy focused on Dogecoin. While the Company currently maintains both segments, its long-term strategic plan contemplates a broader transition that will likely include (i) a futu…

Director — David Enholm: David Enholm resigned as a Director but continues to serve as Chief Financial Officer.

Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review. On May 18, 2026, the Audit Committee of the Board of Directors (the “Audit Committee”) of CleanCore Solutions, Inc. (the “Company”), after discussion with management, and after consultation with the Company’s independent registered public accounting firm, TAAD, LLP (“TAAD”), concluded that the Company’s previously issued unaudited condensed consolidated financial statements included i…

CEO — Clayton Adams: Clayton Adams resigned as CEO but remains on the board and in a new role.

Chief Investment Officer — Mr. Margiotta: Resigned as Chief Investment Officer in connection with the execution and delivery of the Consulting Agreement Termination Agreement.

Entry into a Material Definitive Agreement. Termination of Asset Management Agreement As previously disclosed in a Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission (the “ Commission ”) on September 5, 2025 (the “8-K”), in connection with the offering and use of proceeds described in the 8-K, on September 5, 2025, CleanCore Solutions, Inc. (the “ Company ”) entered into an asset management agreement (the “ Asset Management Agreement ”) with Dogecoin Ventures, I…

Results of Operations and Financial Condition . On November 13, 2025, CleanCore Solutions, Inc. issued a press release regarding its financial results for the quarter ended September 30, 2025. A copy of the press release is furnished as Exhibit 99.1 to this report. The information furnished with this Item 2.02, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that secti…

Entry into a Material Definitive Agreement. Securities Purchase Agreements On September 1, 2025, CleanCore Solutions, Inc. (the “ Company ”) entered into a securities purchase agreement (the “ Cash Purchase Agreement ”) with certain purchasers (the “ Cash Purchasers ”), pursuant to which the Company agreed to issue and sell to the Cash Purchasers pre-funded warrants to purchase an aggregate of 148,650,530 shares of class B common stock (the “ Cash Pre-Funded Warrants ”) for aggregate gross pr…