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
                                                                                  
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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 *

Dresselhuys Eric P.
2. Issuer Name and Ticker or Trading Symbol

ESS Tech, Inc. [ GWH ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
Chief Executive Officer
(Last)          (First)          (Middle)

C/O ESS TECH, INC., 26440 SW PARKWAY AVE., BLDG. 83
3. Date of Earliest Transaction (MM/DD/YYYY)

12/17/2021
(Street)

WILSONVILLE, OR 97070
(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 12/17/2021  A  762938 (1)A$0.00 892997 D  

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 Security3. Trans. Date3A. Deemed Execution Date, if any4. 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 Date7. 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares

Explanation of Responses:
(1) The shares are represented by restricted stock units, or RSUs, of which one-fourth of the 457,763 RSUs vest on May 20, 2022 and the remaining shares vest thereafter in 16 equal quarterly installments and an additional 305,175 RSUs vest as follows: for any forty out of any 60 trading days during the five year period beginning on October 8, 2022 (i) 50% 0f the RSUs shall vest if the closing price per share of the Issuer's common stock is at or greater than $12.50 per share and (ii) 50% of the RSUs shall vest if the closing price is at or greater than $15.00 per share.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Dresselhuys Eric P.
C/O ESS TECH, INC.
26440 SW PARKWAY AVE., BLDG. 83
WILSONVILLE, OR 97070
X
Chief Executive Officer

Signatures
/s/ Amir Moftakhar, by power of attorney12/21/2021
**Signature of Reporting PersonDate

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