NUSCALE POWER Corp

Rule 10b5-1 Trading Plans

In August 2024, we proposed to certain employees, including officers, with restricted stock units (“RSUs”) that they instruct the agent who administers our 2022 Long-Term Incentive Plan to promptly sell shares of Class A common stock sufficient to cover tax withholding obligations arising from the vesting and settlement of the RSUs (a “10b5-1(c) Trading Instruction for Eligible Sell-to-Cover Transaction”). With respect to any eligible sell-to-cover transactions before the expiration of the cooling off periods specified in Rule 10b5-1(c), the instruction is intended to be a “non-Rule 10b5-1 trading arrangement” as defined in Item 408(c) of Regulation S-K, and with respect to eligible sell-to-cover transactions after the cooling off periods specified in Rule 10b5-1(c), the instruction is intended to be a “Rule 10b5-1 trading arrangement” as defined in Item 408(a) of Regulation S-K and satisfy the affirmative defense of Rule 10b5-1(c). There is no durational limit to, or specified number of shares to be sold pursuant to, these instructions. During the three months ended September 30, 2024, Andrea Lachenmayr, Interim General Counsel, signed a 10b5-1(c) Trading Instruction for Eligible Sell-to-Cover Transaction and provided it to the agent on August 13, 2024.

During the three months ended September 30, 2024, the Company had four officers adopt Rule 10b5-1 trading arrangements. These trading arrangements are intended to satisfy the affirmative defense conditions of Rule 10b5-1(c), and do not have any limitation on their duration or the aggregate number of securities that may be purchased or sold pursuant to them. John Hopkins, Chief Executive Officer, entered into a plan on September 9, 2024, R. Ramsey Hamady, Chief Financial Officer, entered into a plan on September 10, 2024, Jackie Engel, Interim Vice President of Accounting, adopted a plan on August 30, 2024, and Karin Feldman, Senior Vice President of Product and Project Delivery, adopted a plan on August 13, 2024.