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( Mark One ) UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON , DC 20549 FORM 10 - K 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 5875 Landerbrook Drive , Suite 220 Cleveland , Ohio ( Address of principal executive offices ) or Delaware ( State or other jurisdiction of incorporation or organization ) Commission File No. 1-9172 NACCO INDUSTRIES , INC . ( Exact name of registrant as specified in its charter ) Registrant's telephone number , including area code : ( 440 ) 229-5151 ( I.R.S. Employer Identification No. ) Securities registered pursuant to Section 12 ( b ) of the Act Title of each class Trading Symbol NC Class A Common Stock , $ 1 par value per share Class B Common Stock is not publicly listed for trade on any exchange or market system ; however , Class B Common Stock is convertible into Class A Common Stock on a share - for - share basis . Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . 34-1505819 Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . Name of each exchange on which registered New York Stock Exchange 44124-4069 ( Zip Code ) Yes " No p 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 p No £ Yes No p 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 such files ) . Yes p No £ 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 definitions of " large accelerated filer , " " accelerated filer , " " smaller reporting company " and " emerging growth company " in Rule 12b - 2 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 Number of shares of Class A Common Stock outstanding at February 19 , 2021 : 5,490,948 Number of shares of Class B Common Stock outstanding at February 19 , 2021 : 1,566,877 Smaller reporting company Large accelerated filer ☐ Accelerated filer Non - accelerated filer Emerging growth company ✔ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . o Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . ✔ Aggregate market value of Class A Common Stock and Class B Common Stock held by non - affiliates as of June 30 , 2020 ( the last business day of the registrant's most recently completed second fiscal quarter ) : $ 96,645,091