FORM 4
[ X ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Conway William E. 		2. Issuer Name and Ticker or Trading Symbol

FAIRMOUNT SANTROL HOLDINGS INC. [ FMSA ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

32400 FAIRMOUNT BLVD. 		3. Date of Earliest Transaction (MM/DD/YYYY)

6/1/2018
(Street)

PEPPER PIKE, OH 44124
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   6/1/2018     D (1)    69990   D $0.00   (1) 3060   D    
Common Stock   6/1/2018     D (2)    3060   D $0.00   (2) 0   D    
Common Stock   6/1/2018     D (1)    491450   D $0.00   (1) 0   I   See Footnote   (3)
Common Stock   6/1/2018     D (1)    199580   D $0.00   (1) 0   I   See Footnote   (4)
Common Stock   6/1/2018     D (1)    55000   D $0.00   (1) 0   I   See Footnote   (5)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
(1)  Reflects disposition in connection with the consummation of the transactions contemplated by the Agreement and Plan of Merger, dated as of December 11, 2017 (the "Merger Agreement"), among the Issuer, SCR-Sibelco NV, Unimin Corporation, nka Covia Holdings Corporation ("Covia"), Bison Merger Sub, Inc. ("Merger Sub") and Bison Merger Sub I, LLC ("Merger Sub LLC"), pursuant to which Merger Sub merged with and into the Issuer with the Issuer as the surviving corporation and for the subsequent merger of Issuer with and into Merger Sub LLC with Merger Sub LLC as the surviving corporation and a wholly owned subsidiary of Covia. In the Merger, each share of Issuer Common Stock, par value $0.01 per share, was exchanged for (i) cash consideration equal to [$0.74] per fully diluted share (the "Cash Consideration") and (ii) 0.20 shares (the "Exchange Ratio") of voting common stock, par value $1.00 per share, of Covia ("Covia Common Stock").
(2)  In accordance with the terms of the Merger Agreement, each restricted stock unit award of the Issuer outstanding immediately prior to the effective time of the Merger (whether vested or unvested) was converted into (i) cash in an amount equal to the Cash Consideration multiplied by the number of shares of Issuer Common Stock subject to such Issuer restricted stock award and (ii) a restricted share unit award of Covia with respect to the aggregate number of shares of Covia Common Stock equal to the product of the number of shares of Issuer Common Stock subject to such Issuer restricted stock unit award, multiplied by the Exchange Ratio, rounded up or down the nearest whole unit.
(3)  William E. Conway, Trustee of the Under Trust Agreement dated March 10, 1992.
(4)  Spouse of Mary F. Conway, Trustee under the Mary F. Conway Declaration of Trust dated December 13, 1980, as modified. As the spouse of the trustee, Mr. Conway is deemed to have voting and investment power over these shares.
(5)  William E. Conway IRA Standard - "Traditional" IRA.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Conway William E.
32400 FAIRMOUNT BLVD.
PEPPER PIKE, OH 44124 		X



Signatures
/s/ William E. Conway, by David J. Crandall, his attorney-in-fact pursuant to Power of Attorney dated September 25, 2014 on file with the Commission 6/5/2018
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
FMSA HOLDINGS INC (NYSE:FMSA)
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