FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 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 *
  Mok Tsan San
2. Date of Event Requiring Statement (Month/Day/Year)
03/15/2018
3. Issuer Name and Ticker or Trading Symbol
Ener-Core, Inc. [ENCR]
(Last)
(First)
(Middle)
UNIT 2101, 21ST FLOOR, MASSMUTUAL TOWER,, 33 LOCKHART ROAD
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

WANCHAI, K3 999077
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 Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 696,056
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Convertible Unsecured Note 09/01/2016   (1) Common Stock 200,000 $ 2.5 D  
Warrant to Purchase Common Stock 09/01/2016 09/01/2021 Common Stock 50,000 $ 3 D  
Warrant to Purchase Common Stock 11/01/2016 11/01/2021 Common Stock 25,000 $ 3 D  
Warrant to Purchase Common Stock 12/01/2016 12/01/2021 Common Stock 25,000 $ 3 D  
Warrant to Purchase Common Stock 01/30/2017 01/30/2022 Common Stock 25,000 $ 3 D  
Warrant to Purchase Common Stock 12/31/2017 12/31/2022 Common Stock 25,000 $ 3 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Mok Tsan San
UNIT 2101, 21ST FLOOR, MASSMUTUAL TOWER,
33 LOCKHART ROAD
WANCHAI, K3 999077
    X    

Signatures

/s/ Tsan San Mok 03/26/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) The Convertible Unsecured Note matures and ceases to be convertible 91 days after the maturity date of the Company's Senior Secured Notes, which currently mature December 31, 2018.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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