ROCKVILLE, Md. and CAPE TOWN, South Africa, Nov. 25, 2025 — EXCEL Services Corporation (“EXCEL”) has announced the signing of a memorandum of understanding (MOU) with Lesedi Nuclear Services (“Lesedi”), a leading South African engineering and project-delivery company operating in the nuclear and industrial sectors. This collaboration merges EXCEL’s extensive U.S. and international background in nuclear regulatory consulting, licensing, and operational support with Lesedi’s established expertise in engineering, maintenance, and plant-operations services.

The partnership will jointly explore opportunities to support plant operations, encompassing engineering, maintenance, licensing, and life-extension activities, as well as new nuclear construction projects across Africa, the Middle East, and the United States. Together, EXCEL and Lesedi aim to deliver safe, efficient, and cost-effective solutions to operators, regulators, project developers, and governmental stakeholders.

Donald R. Hoffman, President and CEO of EXCEL Services Corporation, highlighted EXCEL’s decades of experience supporting the U.S. nuclear fleet and international operators across multiple continents. He emphasized that partnering with Lesedi, recognized as one of Africa’s most respected engineering and nuclear services companies, enhances their collective ability to support plant operations and contribute to new-build programs in key global markets.

Lesedi Executive Director and founder, Francis Carruthers, expressed pleasure in collaborating with EXCEL, acknowledging its status as a recognized global leader in nuclear consulting. Carruthers stated that this partnership aligns with Lesedi’s ambition to further expand its presence beyond South Africa and to play an active role in developing nuclear energy solutions in Africa, the Middle East, and the United States. He also noted that since 2006, Lesedi has performed over 100 specialized maintenance interventions during outages at 29 nuclear power stations in countries including the USA, Spain, UK, Argentina, Brazil, Finland, Netherlands, and China.

Through this MOU, EXCEL and Lesedi will evaluate and pursue cooperation in areas such as:

• Plant operations and life-extension support
• Engineering, maintenance, and outage services
• Regulatory and licensing assistance
• Feasibility studies, planning, and owner’s-engineer services for new construction projects
• Support for emerging Small Modular Reactor (SMR) initiatives and future nuclear infrastructure

For further information, please contact:

EXCEL Services Corporation — (SVP International Operations)
Lesedi Nuclear Services — (Business Development Executive)

About EXCEL Services Corporation

EXCEL Services Corporation, led by President and CEO Dr. Donald R. Hoffman and headquartered in Rockville, Maryland, offers a comprehensive suite of consulting and regulatory services. The company boasts significant experience supporting the U.S. nuclear industry and international programs across North America, Europe, the Middle East, Africa, and Asia. Its services include operations and maintenance cost optimization, regulatory policy development, workforce enhancement, new reactor development, licensing, Improved Technical Specifications, license renewal, power uprates, and owner-support services. EXCEL maintains established relationships with international regulatory authorities.

About Lesedi Nuclear Services

Lesedi Nuclear Services is a prominent South African company specializing in engineering, procurement, construction, and maintenance for complex nuclear and industrial projects. With decades of experience supporting clients such as ESKOM, NECSA, and major infrastructure entities, Lesedi provides engineering design, construction assistance, plant modifications, maintenance services, and workforce development both within Africa and globally.

SOURCE EXCEL Services Corporation