FORM 4 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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Gill Jeswant   2. Issuer Name and Ticker or Trading Symbol HARSCO CORP [HSC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP - Group President Rail (Last) (First) (Middle) 2401 EDMUND HIGHWAY 3. Date of Earliest Transaction (Month/Day/Year) 03/02/2018 (Street) WEST COLUMBIA, SC 29170 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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 03/03/2018   M   2,838 A $ 0 4,966 D   Common Stock 03/03/2018   F   1,285 D $ 0 3,681 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction 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 (Month/Day/Year)

7. Title and Amount of Underlying Securities (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

Restricted Stock Units

(1)

03/03/2018

M

2,838

(2)

(2)

Common Stock

2,838

$ 0

12,028

D

Restricted Stock Units

(3)

03/02/2018

A

6,777

(3)

(3)

Common Stock

6,777

$ 0

18,805

D

Stock Appreciation Rights

$ 19.8

03/02/2018

A

14,648

(4)

03/02/2028

Common Stock

14,648

$ 0

14,648

D

Performance Share Units

(5)

03/02/2018

A

6,777

(5)

03/02/2020

Common Stock

6,777

$ 0

6,777

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Gill Jeswant 2401 EDMUND HIGHWAY WEST COLUMBIA, SC 29170			SVP - Group President Rail

Signatures

/s/ Jeswant Gill		03/06/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Restricted Stock Units convert into common stock on a one-for-one basis.
(2)	On March 3, 2017 the reporting person was granted 8,516 restricted stock units of which one-third vested on the first anniversary of the grant date.
(3)	Restricted stock units granted under the 2013 Equity and Incentive Compensation Plan represent a contingent right to receive Harsco common stock on a one-for-one basis when the restricted stock units vest. The restricted stock units vest in one-third increments on each of the first three anniversaries of the date of the grant.
(4)	The stock appreciation rights vest in one-third increments on each of the first three anniversaries of the date of grant.
(5)	Each performance share unit represents a contingent right to receive the equivalent of one share of Harsco common stock. The performance share units vest based on the total shareholder return of Harsco common stock relative to the S&P 600 Industrial Index. The performance share units vest on 12/31/2020.

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