Filing Details

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

o

Rule 13d-1(b)

x

Rule 13d-1(c)

o

Rule 13d-1(d)

CUSIP No. 19075F106

1

Names of Reporting Persons
Qin Hui

2

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

o

3

SEC Use Only

4

Citizenship or Place of Organization
Peoples Republic of China

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With:

5

Sole Voting Power
5,731,953

6

Shared Voting Power
0

7

Sole Dispositive Power
5,731,953

8

Shared Dispositive Power
0

9

Aggregate Amount Beneficially Owned by Each Reporting Person
5,731,953

10

Check box if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o

11

Percent of Class Represented by Amount in Row (9)
19.15%

12

Type of Reporting Person (See Instructions)
IN

Item 1.

(a)

Name of Issuer:
Cobalt International Energy, Inc.

(b)

Address of Issuers Principal Executive Offices:
Cobalt Center

920 Memorial City Way, Suite 100

Houston, TX 77024

Item 2.

(a)

Name of Person Filing:
Qin Hui

(b)

Address of Principal Business Office or, if none, Residence:
33 Tanglin Road, #21-05 St Regis

(c)

Citizenship:
Peoples Republic of China

(d)

Title and Class of Securities:
Common Stock, par value $0.01 per share

(e)

CUSIP No.:
19075F106

Item 3.

If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

o

Broker or dealer registered under section 15 of the Act;

(b)

o

Bank as defined in section 3(a)(6) of the Act;

(c)

o

Insurance company as defined in section 3(a)(19) of the Act;

(d)

o

Investment company registered under section 8 of the Investment Company Act of 1940;

(e)

o

An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);

(f)

o

An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F);

(g)

o

A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G);

(h)

o

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

o

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940;

(j)

o

A non-U.S. institution in accordance with Rule 240.13d-1(b)(1)(ii)(J);

(k)

o

Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with

Rule 240.13d-1(b)(1)(ii)(J), please specify the type of institution:____________________________

Item 4.

Ownership

(a)

Amount beneficially owned:   

5,731,953

(b)

Percent of class:   

19.15%

(c)

Number of shares as to which such person has:

(i)

Sole power to vote or to direct the vote:

5,731,953

(ii)

Shared power to vote or to direct the vote:

0

(iii)

Sole power to dispose or to direct the disposition of:

5,731,953

(iv)

Shared power to dispose or to direct the disposition of:

0

Item 5.

Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following   o.

Item 6.

Ownership of More than Five Percent on Behalf of Another Person.

Not applicable.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.

Not applicable.

Item 8.

Identification and Classification of Members of the Group.

Not applicable.

Item 9.

Notice of Dissolution of Group.

Not applicable.

Item 10.

Certifications.

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Dated:

June 11, 2018

/s/ Qin Hui

Qin Hui

ATTENTION:

Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).