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TABLE OF CONTENTS ( Mark One ) X ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( D ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( D ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K Cayman Islands ( State or other jurisdiction of incorporation or organization ) SPRING VALLEY ACQUISITION CORP . ( Exact name of registrant as specified in its charter ) 001-39736 2100 McKinney Ave. , Suite 1675 Dallas , TX ( Address of principal executive offices ) Title of Each Class : Units , each consisting of one Class A ordinary share , $ 0.0001 par value , and one half of one redeemable warrant Class A ordinary shares included as part of the units Warrants included as part of the units , each whole warrant exercisable for one Class A ordinary share at an exercise price of $ 11.50 Large accelerated filer Non - accelerated filer None . Registrant's telephone number , including area code : ( 847 ) 905-4500 Not Applicable ( Former name or former address , if changed since last report ) Securities registered pursuant to Section 12 ( b ) of the Act : ( Commission File Number ) Trading Symbol : ■ SVSVU SVSV SVSVW Securities registered pursuant to Section 12 ( g ) of the Act : None Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Yes No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Exchange Act . Yes No > Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . Yes No Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S - T ( § 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit and post such files ) . Yes No 85-2715384 ( I.R.S. Employer Identification Number ) 75201 ( Zip Code ) Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company or an emerging growth company . See definition of " large accelerated filer , " " accelerated filer " , " smaller reporting company " and " emerging growth company " in Rule 12b - 2 of the Exchange Act . Accelerated filer Smaller reporting company Emerging growth company Name of Each Exchange on Which Registered : The NASDAQ Capital Market The NASDAQ Capital Market The NASDAQ Capital Market Documents Incorporated by Reference : □ ☑ ☑ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . Yes No As of June 30 , 2020 , the last business day of the registrant's most recently completed second fiscal quarter , the registrant's securities were not publicly traded . The registrant's units began trading on The NASDAQ Capital Market ( " NASDAQ " ) on December 8 , 2020 and the registrant's shares of Class A common stock , par value $ 0.0001 ( the " Class A common stock " ) and warrants began trading on the NASDAQ on January 18 , 2021. The aggregate market value of the common stock outstanding , other than shares held by persons who may be deemed affiliates of the registrant , computed by reference to the closing sales price for the shares of common stock on December 31 , 2020 , as reported on the NYSE , was $ 242,650,000 ( based on the closing sales price of the Class A common stock on December 31 , 2020 of $ 10.55 ) . period for complying with any new As of March 30 , 2021 , 23,000,000 shares of Class A common stock , par value $ 0.0001 , and 5,750,000 shares of Class B common stock , par value $ 0.0001 , were issued and outstanding .