POWER OF ATTORNEY

        Know all persons by these presents that the undersigned hereby
constitutes and appoints each of Harold Rogers, James Roe, Bahi Okupa-Hines,
Hae Chang, and Robert Kelley signing individually, the undersigned's true and
lawful attorneys-in fact and agents to:

       (1)  execute for and on behalf of the undersigned, in the undersigned's
            capacity as an officer, director and/or greater than 10%
            stockholder of Coupang, Inc. (the "Company"), (a) Forms 3, 4, and 5
            in accordance with Section 16(a) of the Securities Exchange Act of
            1934, as amended (the "Exchange Act") and the rules thereunder, and
            (b) Form ID, Uniform Application for Access Codes to File on EDGAR,
            including Update Passphrase Confirmation, and any other documents
            necessary or appropriate to obtain codes and passwords enabling the
            undersigned to make electronic filings with the U.S. Securities and
            Exchange Commission (the "SEC") of reports required by Section
            16(a) of the Exchange Act;

       (2)  do and perform any and all acts for and on behalf of the
            undersigned which may be necessary or desirable to complete and
            execute any such Form 3, 4, or 5, complete and execute any
            amendment or amendments thereto, and timely file such form with the
            SEC and any stock exchange or similar authority; and

       (3)  take any other action of any type whatsoever in connection with the
            foregoing which, in the opinion of such attorney-in-fact, may be of
            benefit to, in the best interest of, or legally required by, the
            undersigned, it being understood that the documents executed by
            such attorney-in-fact on behalf of the undersigned pursuant to this
            Power of Attorney shall be in such form and shall contain such
            terms and conditions as such attorney-in-fact may approve in such
            attorney-in-fact's discretion.

        The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Exchange Act.

        This Power of Attorney shall remain in full force and effect until the
earliest to occur of (a) the undersigned is no longer required to file Forms 3,
4 and 5 with respect to the undersigned's holdings of and transactions in
securities issued by the Company, (b) revocation by the undersigned in a signed
writing delivered to the foregoing attorneys-in-fact or (c) as to any attorney-
in-fact individually, until such attorney-in-fact is no longer employed by the
Company or Gibson, Dunn & Crutcher LLP.

        The undersigned has caused this Power of Attorney to be executed as of
1/3/2023.

                                   By: /s/ Hanseung Kang
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