    <SEC-DOCUMENT>0001104659-22-039019-index.html : 20220329
    <SEC-HEADER>0001104659-22-039019.hdr.sgml : 20220329
    <ACCEPTANCE-DATETIME>20220329060408
    ACCESSION NUMBER:		0001104659-22-039019
    CONFORMED SUBMISSION TYPE:	S-4/A
    PUBLIC DOCUMENT COUNT:		9
    FILED AS OF DATE:		20220329
    DATE AS OF CHANGE:		20220329

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			SPRING VALLEY ACQUISITION CORP.
    		CENTRAL INDEX KEY:			0001822966
    		STANDARD INDUSTRIAL CLASSIFICATION:	HEATING EQUIPMENT, EXCEPT ELECTRIC & WARM AIR FURNACES [3433]
    		IRS NUMBER:				852715384
    		STATE OF INCORPORATION:			E9
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		S-4/A
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-262053
    		FILM NUMBER:		22777289

    	BUSINESS ADDRESS:
    		STREET 1:		2100 MCKINNEY AVE, SUITE 1675
    		CITY:			DALLAS
    		STATE:			TX
    		ZIP:			75201
    		BUSINESS PHONE:		(203) 856-1193

    	MAIL ADDRESS:
    		STREET 1:		2100 MCKINNEY AVE, SUITE 1675
    		CITY:			DALLAS
    		STATE:			TX
    		ZIP:			75201
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-4/A
    <SEQUENCE>1
    <FILENAME>tm2136469-16_s4a.htm
    <DESCRIPTION>S-4/A
    <TEXT>
    Document 1 - file: tm2136469-16_s4a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.1
    <SEQUENCE>2
    <FILENAME>tm2136469d18_ex23-1.htm
    <DESCRIPTION>EXHIBIT 23.1
    <TEXT>
    Document 2 - file: tm2136469d18_ex23-1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.2
    <SEQUENCE>3
    <FILENAME>tm2136469d18_ex23-2.htm
    <DESCRIPTION>EXHIBIT 23.2
    <TEXT>
    Document 3 - file: tm2136469d18_ex23-2.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>sg_salomelaid-bw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: sg_salomelaid-bw.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>tm2136469d1-ic_gnrlreg4clr.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: tm2136469d1-ic_gnrlreg4clr.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>tm2136469d1-ph_design4clr.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: tm2136469d1-ph_design4clr.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>tm2136469d1-ph_nuscale4clr.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: tm2136469d1-ph_nuscale4clr.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>tm2136469d1-ph_our4clr.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: tm2136469d1-ph_our4clr.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>tm2136469d16-fc_corpbw.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: tm2136469d16-fc_corpbw.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>