CUMMINS INC

In 2025, we continued to invest in future critical technologies and products. We will continue to make investments to develop new products and improve our current technologies to meet future emission standards around the world, improvements in fuel economy performance of diesel and natural gas-powered engines and related components, as well as development activities around electrified power systems with innovative components and systems including battery and electric power technologies.

Our research, development and engineering (RD&E) programs are focused on product improvements, product extensions, innovations and cost reductions for our customers. RD&E expenditures include salaries, contractor fees, building costs, utilities, testing, technical IT expenses, administrative expenses and allocation of corporate costs and are expensed, net of contract reimbursements, when incurred. From time to time, we enter into agreements with customers and government agencies to fund a portion of the RD&E costs of a particular project. When not associated with a sales contract, we generally account for these reimbursements as an offset to the related RD&E expenditure. RD&E expenses, net of contract reimbursements, were $1.4 billion each year in 2025, 2024 and 2023. Contract reimbursements were $54 million, $72 million and $81 million in 2025, 2024 and 2023, respectively.