Filing Details

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

o

Rule 13d-1(b)

o

Rule 13d-1(c)

x

Rule 13d-1(d)

CUSIP No. G2490L 109

Page 2 of 7 pages

1

Name of Reporting Person
Kan Zhang

2

Check the Appropriate Box if a Member of a Group

(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
246,224,465. See Item 4.

6

Shared Voting Power
0

7

Sole Dispositive Power
246,224,465. See Item 4.

8

Shared Dispositive Power
0

9

Aggregate Amount Beneficially Owned by Each Reporting Person
246,224,465. See Item 4.

10

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

11

Percent of Class Represented by Amount in Row 9
7.7% of total outstanding ordinary shares (assuming conversion of all outstanding Class B ordinary shares into the same number of Class A ordinary shares). See Item 4.

12

Type of Reporting Person
IN

CUSIP No. G2490L 109

Page 3 of 7 pages

1

Name of Reporting Person
Kans Global CoolStuff Investment Inc.

2

Check the Appropriate Box if a Member of a Group

(a)

o

(b)

o

3

SEC Use Only

4

Citizenship or Place of Organization
British Virgin Islands

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5

Sole Voting Power
246,224,465. See Item 4.

6

Shared Voting Power
0

7

Sole Dispositive Power
246,224,465. See Item 4.

8

Shared Dispositive Power
0

9

Aggregate Amount Beneficially Owned by Each Reporting Person
246,224,465. See Item 4.

10

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

11

Percent of Class Represented by Amount in Row 9
7.7% of total outstanding ordinary shares (assuming conversion of all outstanding Class B ordinary shares into the same number of Class A ordinary shares). See Item 4.

12

Type of Reporting Person
CO

CUSIP No. G2490L 109

Page 4 of 7 pages

Item 1(a).

Name of Issuer:
CooTek (Cayman) Inc. (the Issuer)

Item 1(b).

Address of Issuers Principal Executive Offices:
Building 7, No. 2007 Hongmei Road, Xuhui District, Shanghai, 201103, Peoples Republic of China.

Item 2(a).

Name of Person Filing:
Kan Zhang, and Kan's Global CoolStuff Investment Inc. (collectively, the Reporting Persons)

Item 2(b).

Address of Principal Business Office or, if none, Residence:
The address of the Reporting Persons is c/o Building 7, No. 2007 Hongmei Road, Xuhui District, Shanghai, 201103, Peoples Republic of China.

Item 2(c)

Citizenship:
Kan Zhang is a citizen of the Peoples Republic of China. Kan's Global CoolStuff Investment Inc. is a British Virgin Islands company.

Item 2(d).

Title of Class of Securities:
ordinary shares, par value $0.00001 per share, of the Issuer

The Issuers ordinary shares consist of Class A ordinary shares and Class B ordinary shares. Each holder of Class A ordinary shares is entitled to one vote per share and each holder of Class B ordinary shares is entitled to twenty-five votes per share on all matters submitted to them for a vote. Class B ordinary shares are convertible at any time by the holder thereof into Class A ordinary shares on a one-for-one basis. Class A ordinary shares are not convertible into Class B ordinary shares under any circumstances.

Item 2(e).

CUSIP Number:
G2490L 109

Item 3.

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

Not applicable

Item 4.

Ownership:

Reporting
Person

Amount
beneficially
owned:

Percent
of
class:

Percent of
aggregate
voting
power:

Sole power to
vote or direct
the vote:

Shared power
to vote or to
direct the
vote:

Sole power to
dispose or to
direct the
disposition of:

Shared power
to dispose or
to direct the
disposition of:

Kan Zhang

246,224,465

(1)

7.7%(2)

67.7%(3)

246,224,465

(1)

0

246,224,465

(1)

0

Karls Global CoolStuff Investment Inc.

246,224,465

(1)

7.7%(2)

67.7%(3)

246,224,465

(1)

0

246,224,465

(1)

0

CUSIP No. G2490L 109

Page 5 of 7 pages

Item 5.

Ownership of Five Percent or Less of a Class:

Not applicable

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 Controlling Person:

Not applicable

Item 8.

Identification and Classification of Members of the Group:

Not applicable

Item 9.

Notice of Dissolution of Group:

Not applicable

CUSIP No. G2490L 109

Page 6 of 7 pages

Item 10.

Certifications:

Not applicable

Dated: January 25, 2019

Kan Zhang

/s/ Kan Zhang

Kans Global CoolStuff Investment Inc.

By:

/s/ Kan Zhang

Name:

Kan Zhang

Title:

Director

CUSIP No. G2490L 109

Page 7 of 7 pages

Exhibit No.

Description

A

Joint Filing Agreement