144: Issuer Information

Name of Issuer

DoubleDown Interactive Co., Ltd.

SEC File Number

001-39349

Address of Issuer

13F, GANGNAM FINANCE CENTER
152, TEHERAN-RO GANGNAM-GU
SEOUL
KOREA, REPUBLIC OF
06236

Phone

822-501-7216

Name of Person for Whose Account the Securities are To Be Sold

STIC Special Situation Diamond Ltd.

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Owner

Relationship to Issuer

10% Shareholder

144: Securities Information

Title of the Class of Securities To Be Sold

Name and Address of the Broker

Number of Shares or Other Units To Be Sold

Aggregate Market Value

Number of Shares or Other Units Outstanding

Approximate Date of Sale

Name the Securities Exchange

Common Shares, Par value KRW10,000 per share(1)

B. Riley Securities, Inc.
11100 Santa Monica Blvd.
Suite 800
Los Angeles CA 90025

24775

6292850.00

2477672

07/08/2024

NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class

Date you Acquired

Nature of Acquisition Transaction

Name of Person from Whom Acquired

Is this a Gift?

Date Donor Acquired

Amount of Securities Acquired

Date of Payment

Nature of Payment *

Common Shares, Par value KRW10,000 per share(2)

05/25/2020

2.5% Convertible Bonds converted to Common Shares(2)

Issuer: DoubleDown Interactive Co., Ltd.

24775

05/26/2017

Cash(2)

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

(1) Up to 495,500 American Depositary Shares ("ADSs"), each representing 0.05 share of a common share for an aggregate of 24,775 common shares, are expected to be sold. "Number of Shares Outstanding" is based on common shares outstanding as of March 31, 2024. "Aggregate Market Value" calculated on the closing price of ADSs on July 3, 2024, which was $12.70. The ADSs are expected to be sold between July 8, 2024 and October 6, 2024. (2) On May 26, 2017, STIC Special Situation Diamond Ltd. purchased the Issuer's 2.5% Convertible Bonds (the "Bonds") in cash. The Bonds converted into common shares at a conversion price of KRW293,600 per common share for a total of 715,258 common shares in May and June of 2020.

Date of Notice

07/05/2024

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

/s/ Jin Ho Chai, Director of STIC Special Situation Diamond Ltd.

144: Filer Information