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Exhibit 21.1

NuScale Power Corporation Subsidiaries

[Note: Roman numerals below denote the level of the subsidiary. For example, “I” represents a first-tier subsidiary of NuScale Power Corporation; “II” represents a second tier of subsidiary of NuScale Power, LLC; and ;
“III” represents a second tier of subsidiary of NuScale Power OVS, LLC]

Subsidiary Name

Percent Holding

Organized Under Laws of

I NuScale Power, LLC

100.0

Oregon

II NuScale Power OVS, LLC

100.0

Delaware

III NuScale Power Canada Holdings, ULC

100.0

BC, Canada

III NuScale Investment Co., Ltd.

40.0

Korea

III NuScale Romania S.R.L.

100.0

Romania

II ENTRA1 NuScale LLC

50.0

Delaware