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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(Print or Type Responses)

1. Name and Address of Reporting Person * WILBURN ROBERT C   2. Issuer Name and Ticker or Trading Symbol HARSCO CORP [HSC] 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) P.O. BOX 8888 3. Date of Earliest Transaction (Month/Day/Year) 05/01/2007 (Street) CAMP HILL, PA 17001-8888 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, $1.25 par value 05/02/2007   M   4,000 A $ 16.4063 11,000 D   Common Stock, $1.25 par value 05/02/2007   S   4,000 D $ 50.58 7,000 (1) 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

Phantom Stock Units (2)

(2)

(2)

(2)

Common Stock, $1.25 par value

(2)

2,859.038 (1)

D

Stock Option (Right to Buy) (3)

$ 16.4063 (3)

05/02/2007

M

4,000

05/01/2000(3)

04/30/2009(3)

Common Stock, $1.25 par value

4,000 (3)

$ 16.4063 (3)

0 (1)

D

Stock Option (Right to Buy) (3)

$ 14.6563 (3)

(3)

04/30/2010(3)

Common Stock, $1.25 par value

(3)

4,000 (1)

D

Stock Option (Right to Buy) (3)

$ 13.9625 (3)

(3)

04/30/2011(3)

Common Stock, $1.25 par value

(3)

4,000 (1)

D

Stock Option (Right to Buy) (3)

$ 20.96 (3)

(3)

04/30/2012(3)

Common Stock, $1.25 par value

(3)

4,000 (1)

D

Stock Option (Right to Buy) (3)

$ 16.96 (3)

(3)

04/30/2013(3)

Common Stock, $1.25 par value

(3)

4,000 (1)

D

Restricted Stock Units-NEDSP (4)

(4)

05/01/2007

A

2,000

(4)

(4)

Common Stock, $1.25 par value

2,000 (4)

(4)

6,548.684 (1)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
WILBURN ROBERT C P.O. BOX 8888 CAMP HILL, PA 17001-8888	X

Signatures

Mark E. Kimmel, Attorney-In-Fact		05/03/2007
**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)	Reflects adjustment made for two-for-one stock distribution on March 26, 2007.
(2)	Represents deferred compensation under the 1995 Non-Employee Directors' Stock Plan. Each phantom stock unit represents a right to be paid in cash an amount equal to the fair market value of one share of Harsco Corporation common stock at the date of settlement. The scheduled settlement date for the phantom stock units is in annual installments over ten years to commence by January 31, 2008. The deferred compensation credit for fees earned during the quarterly period is the fair market value on the immediately preceding such credit date. Includes reinvested dividends. The amount credited for each quarterly dividend is payable using the dividend payment date as the valuation date.
(3)	Stock option granted pursuant to 1995 Non-Employee Directors' Stock Plan, in a transaction exempt under Rule 16b-3.
(4)	Represents restricted stock units granted under the 1995 Non-Employee Directors' Stock Plan. Each restricted stock unit has a one year vesting period and will be settled promptly following termination of the individual's service as a director of the Company. Includes reinvested dividends.

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