HYAC

Combined Company to Trade as Suncrete Under Ticker "RMIX" Suncrete to Ring the Nasdaq Stock Market Closing Bell DALLAS, April 8, 2026  /PRNewswire/ -- Concrete Partners Holding, LLC ("CPH"), a ready-mix concrete logistics and distribution platform strategically located in Oklahoma and Arkansas, and Haymaker Acquisition Corp. 4 (NYSE: HYAC) ("Haymaker"), a publicly traded special purpose acquisition company, today announced the successful completion of their previously announced business combination (the "Business Combination"). CPH is the portfolio company of SunTx Capital Partners ("SunTx"), a leading Texas-based private equity firm that invests in construction materials, manufacturing, distribution and service companies.

DALLAS, March 25, 2026 /PRNewswire/ -- Concrete Partners Holding, LLC ("Suncrete" or the "Company"), a ready-mix concrete logistics and distribution platform strategically located in Oklahoma and Arkansas, and Haymaker Acquisition Corp. 4 (NYSE: HYAC) ("Haymaker"), a publicly traded special purpose acquisition company, today announced that they have entered into non-redemption agreements ("Non-Redemption Agreements") with certain institutional investors, pursuant to which, among other things, the investors agreed to acquire an aggregate of 4.4 million Class A ordinary shares of Haymaker initially included as part of the units sold in Haymaker's initial public offering ("Public Shares") from shareholders of Haymaker, either in the open market or through privately negotiated transactions, at a price no higher than the redemption price per share payable to public shareholders who exercise redemption rights with respect to their Public Shares, prior to the closing date of the Company's business combination with Haymaker ("Business Combination"), to waive their redemption rights and hold the Public Shares through the closing date of the Business Combination, and to abstain from voting and not vote the Public Shares in favor of or against the Business Combination. Suncrete intends to pay to the shareholders that sell Public Shares in connection with the Non-Redemption Agreements an amount equal to the difference between the actual redemption price for the Public Shares and the price at which such sellers sell the Public Shares to the Investors.