Summit Midstream Corp

The risk factors contained in Item 1A. Risk Factors of the 2024 Annual Report are incorporated herein by reference except to the extent they address risks arising from or relating to the failure of events described therein to occur, which events have since occurred. The risk factor presented below updates, and should be considered in addition to, the risk factors previously

disclosed by us in Item 1A of the 2024 Annual Report.

The cost of raw materials, parts, and components that are manufactured and supplied for our operations may be adversely affected by tariffs imposed by the U.S. government on products imported into the United States and tariffs or other retaliatory trade measures imposed by other jurisdictions. Tariffs and other trade restrictions could also disrupt our supply chain and logistics, restrict or limit the availability of materials or supplies, and cause adverse financial impacts due to volatility in foreign exchange rates and interest rates or inflationary pressures on raw materials and energy. We may not be able to fully mitigate the impact of these increased costs or pass price increases on to our customers. While tariffs and other retaliatory trade measures imposed by other countries on U.S. goods have not yet had a significant impact on our business or results of operations, we cannot predict further developments, and such existing or future tariffs could have a material adverse effect on our results of operations, financial position, and cash flows. Recently, the United States has proposed changes in trade policies that include export control restrictions, the negotiation or termination of trade agreements, the imposition of higher tariffs on imports into the United States, increased economic sanctions on individuals, companies, or countries, and other government regulations affecting trade between the United States and other countries, and a number of other nations have proposed similar measures directed at trade with the United States in response. As a result of these developments, there may be greater restrictions and economic disincentives on international trade that could adversely affect our business. It may be time-consuming and expensive for us to alter our business operations to adapt to or comply with any such changes, and any failure to do so could have a material adverse effect on our business, results of operations, and financial position.

Other than the shares of common stock issued to Fundare in the Moonrise Acquisition, we did not sell any unregistered equity securities during the quarter ended March 31, 2025.

Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosure.

Not applicable.