The company announced a definitive merger agreement with SACH Pte. Ltd. as its initial business combination target.

• On October 3, 2025, Quantumsphere Acquisition Corporation entered into an Agreement and Plan of Merger with SACH Pte. Ltd., with the merger structured so that the post-transaction company will own or acquire 100% of the target business [N1].

The company’s experienced management team and established network may enable it to identify and complete a business combination with a private company that has strong growth and cash flow potential. The merger with SACH Pte. Ltd. represents a material step toward executing its business plan. The SPAC structure offers a streamlined alternative to traditional IPOs, potentially benefiting the target company with access to capital and public market benefits.

The company currently has no operating revenues and has incurred losses since inception. It faces significant competition in sourcing and completing a business combination from other SPACs and investment firms with greater resources. The success of the company depends on completing a suitable business combination within the required timeframe, and there is no assurance that such a combination will be consummated. The company’s financial resources are limited to the trust account and any additional financing it may obtain, which is not guaranteed. The blank check nature and lack of operating history may deter some target companies.

As a SPAC, Quantumsphere Acquisition Corp’s competitive advantages include its experienced management team with a track record in acquisitions and operations, and its status as a publicly listed acquisition vehicle offering an alternative to traditional IPOs for target companies. The company’s structure provides potential target businesses with access to U.S. capital markets and a public profile, which may be attractive compared to the costs and uncertainties of a traditional IPO. However, the company faces intense competition from other SPACs and investment entities with greater resources, and its blank check status and lack of operating history may be viewed negatively by some potential targets.

• Competition Risk: The company faces intense competition from other SPACs, private equity groups, venture capital funds, and operating businesses with greater financial and operational resources, which may limit its ability to acquire attractive target businesses [S1].
• Business Combination Risk: There is no assurance that the company will complete a business combination within the required 18-month period or any approved extension, which could result in liquidation and redemption of public shares [S1].
• Financial Resource Risk: The company’s ability to consummate a business combination depends on the funds held in the trust account and any additional financing, which may not be available on acceptable terms or at all [S1].
• Management Conflicts: Management and directors may have fiduciary or contractual obligations to other entities that could limit acquisition opportunities presented to the company [S1].
• Limited Operating History: As a blank check company, the company has no operating history or revenues, which increases uncertainty regarding its ability to identify and complete a successful business combination [S1].

• Quantumsphere Acquisition Corp is a Cayman Islands exempted company incorporated on July 23, 2024, formed as a blank check company for the purpose of completing a business combination such as a merger, share exchange, asset acquisition, or similar transaction [S1].
• The company completed its IPO on August 7, 2025, selling 8,280,000 units at $10.00 per unit, raising gross proceeds of $82.8 million, with proceeds placed in a U.S.-based trust account for the benefit of public shareholders [S1].
• Since IPO, the company has had no revenue and has incurred losses from formation and operating costs, funding operations through sale of securities and loans from the Sponsor and others [S1].
• The company’s management team is led by Ping Zhang (Chairman, CEO, CFO), with independent directors Wei (Victor) Zhang, Daniel M. McCabe, and Qi Gong, all with diverse professional backgrounds and experience in acquisitions and business operations [S1].
• The company’s business strategy is to identify and acquire one or more private companies with compelling economics, clear paths to positive operating cash flow, significant assets, and strong management teams seeking access to U.S. public capital markets [S1].
• Acquisition criteria include strong management teams, potential for revenue and earnings growth, potential for strong free cash flow generation, and benefits from being a public company [S1].
• The company has entered into a business combination agreement with SACH Pte. Ltd. as the target, with the merger structured so that the post-transaction company will own or acquire 100% of the equity interests or assets of the target business [S1][N1].
• The company’s financial snapshot as of March 31, 2026, shows cash and equivalents of $0, current assets of $317,303, current liabilities of $273,747, resulting in a current ratio of 1.16 and a cash ratio of 0 [S1].
• Net income reported as $521,600 for the period ending December 31, 2025 [S2].
• The company’s securities trade on Nasdaq under symbols QUMS (ordinary shares), QUMSR (rights), and QUMSU (units) [S1].
• The company has a deferred underwriting commission payable from the trust account upon consummation of the initial business combination, equal to 4.00% of gross proceeds from the sale of units [S1].
• The company faces competition in identifying and acquiring target businesses from other SPACs, private equity groups, venture capital funds, and operating businesses, many with greater resources and experience [S1].
• The company’s management and board have fiduciary duties and may have obligations to other entities that could affect acquisition opportunities [S1].
• The company is an emerging growth company and a smaller reporting company, with reduced disclosure obligations [S1].
• Recent news announced the agreement and plan of merger with SACH Pte. Ltd., confirming the material definitive agreement for the initial business combination [N1].