Houston American Energy Corp. enters their next stage of development with the appointment of best in industry Engineering and Service Provider

Climate change Industry leaders in environmental infrastructure delivery

HOUSTON, TX, Aug. 18, 2025 (GLOBE NEWSWIRE) -- Houston American Energy Corp. (NYSE:HUSA) ("HUSA" or the "Company") and Abundia Global Impact Group (AGIG), announced the appointment of Nexus PMG (Nexus) as its Engineering and Service provider to support the development of AGIG's Plastics Recycling Facility and Innovation Hub on the site acquired in July 2025 at the Cedar Port Industrial Park in Baytown, TX.

Nexus's expertise in delivering front-end engineering and project de-risking services for low-carbon infrastructure should accelerate the project's development. Nexus will also provide strategic support and guidance for the development of the Abundia Innovation Hub, bringing a multidisciplinary team with deep experience across renewable fuels, advanced recycling, and sustainable aviation fuel (SAF) technologies.

"Since our formation, AGIG has strived to create advanced technology solutions for the renewable energy industry and to partner with world class talent and engineering partners", stated Ed Gillespie, Chief Executive Officer of Abundia Global Impact Group. "Nexus are industry renowned and trusted for their ability to execute in the low carbon infrastructure sector. Their depth of expertise will help advance this unique project as we build our first commercial scale facility and an innovation hub at our new location in Cedar Park."

"Our team is very excited to work with AGIG to deliver a groundbreaking plastics recycling venture and a renewable energy innovation hub at Cedar Port," stated Ben Hubbard, Chief Executive Officer of Nexus PMG. "This project will play a vital role in reducing plastic waste, while advancing the decarbonization of the fuels and chemicals industries."

As AGIG's Engineering partner, the Nexus team will assist with technical reviews, guidance on project specifications, supervision and quality assurance of the pre-FEED and FEED studies. Their engagement will begin with conceptual development and a feasibility assessment to set the project design basis, with a defined path to final investment decision (FID) for the facility and innovation hub in Cedar Park.

About Houston American Energy Corp.

Houston American Energy Corp. (NYSE:HUSA) is an independent energy company with a growing and diversified portfolio across both conventional and renewable sectors. Historically focused on the exploration and production of oil and natural gas, the Company is actively expanding into high-growth segments of the energy industry. In July 2025, HUSA acquired Abundia Global Impact Group, a technology-driven platform specializing in the conversion of waste plastics into low-carbon fuels and chemical feedstocks. This strategic acquisition reflects HUSA's broader commitment to meeting global energy demands through a balanced mix of traditional and alternative energy solutions and positions the Company to capitalize on emerging opportunities in sustainable fuels and energy transition technologies.

About Nexus PMG

Nexus PMG is the point where project finance, development and operations connect. The industry-leading firm focuses on providing world-class advisory services to infrastructure investors by delivering technical, operational and financial diligence on projects that reduce carbon intensity and enhance resource efficiency. Nexus PMG's integrated business lines provide end-to-end services within each targeted sector including development; preliminary engineering; contract structuring; engineering, procurement and construction (EPC); commissioning and startup; operational readiness and process improvement.

For additional information, view the company's website at www.houstonamerican.com or contact Houston American Energy Corp. at (713) 222-6966.

Cautionary Note Regarding Forward-Looking Information:

This news release contains "forward-looking information" and "forward-looking statements" (collectively, "forward-looking information") within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking information generally is accompanied by words such as "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "expect," "should," "would," "plan," "predict," "potential," "seem," "seek," "future," "outlook" and similar expressions that predict or indicate future events or trends or that are not statements of historical matters. Forward-looking information is based on management's current expectations and beliefs and is subject to a number of risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. Forward-looking information in this news release includes, but is not limited to, statements about the future growth of the Company in the renewable energy industry and plans for new project development and facilities, the products offered by the Company and the markets in which it operates, and the Company's projected future results and market opportunities. Actual results may differ materially from those indicated by these forward-looking statements as a result of a variety of factors, including, but not limited to: (i) risks and uncertainties impacting the Company's business including, risks related to its current liquidity position and the need to obtain additional financing to support ongoing operations, the Company's ability to continue as a going concern, the Company's ability to maintain the listing of its common stock on NYSE American, the Company's ability to predict its rate of growth, the Company's ability to hire, retain and motivate employees, the effects of competition on the Company's business, including price competition, technological, regulatory and legal developments, developments in the economy and financial markets, and (ii) other risks as set forth from time to time in the Company's filings with the U.S. Securities and Exchange Commission.

Readers are cautioned not to place undue reliance on these forward-looking statements. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as a guarantee, an assurance, a prediction or a definitive statement of fact or probability. Actual events and circumstances are beyond the control of the Company.

With respect to the forward-looking information contained in this news release, the Company has made numerous assumptions. While the Company considers these assumptions to be reasonable, these assumptions are inherently subject to significant business, economic, competitive, market and social uncertainties and contingencies. Additionally, there are known and unknown risk factors which could cause the Company's actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking information contained herein. A complete discussion of the risks and uncertainties facing the Company's business is disclosed in our Annual Report on Form 10-K and other filings with the SEC on www.sec.gov.

All forward-looking information herein is qualified in its entirety by this cautionary statement, and the Company disclaims any obligation to revise or update any such forward-looking information or to publicly announce the result of any revisions to any of the forward-looking information contained herein to reflect future results, events or developments, except as required by law.