Exhibit 4.55
 DATED 3 NOVEMBER 2009
 CHINA UNICOM (HONG KONG) LIMITED
 and
 SK TELECOM CO., LTD.
 SHARE REPURCHASE AGREEMENT




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CONTENTS
 CLAUSE
    
    PAGE1.
    
    DEFINITIONS AND INTERPRETATION
    
    
    12.
    
    SALE AND PURCHASE
    
    
    33.
    
    CONSIDERATION
    
    
    34.
    
    CONDITIONS TO COMPLETION
    
    
    35.
    
    COMPLETION
    
    
    46.
    
    UNICOM WARRANTIES
    
    
    57.
    
    SKT WARRANTIES
    
    
    68.
    
    ANNOUNCEMENTS AND CONFIDENTIALITY
    
    
    79.
    
    ENTIRE AGREEMENT
    
    
    810.
    
    GENERAL
    
    
    811.
    
    COSTS AND STAMP DUTY
    
    
    912.
    
    NOTICES
    
    
    913.
    
    GOVERNING LAW AND JURISDICTION
    
    
    10




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This Agreement
 Between:
 (1)
    
    CHINA UNICOM (HONG KONG) LIMITED, a company incorporated in Hong Kong with limited liability,
whose registered address is at 75th Floor, The Center, 99 Queens Road Central, Hong Kong
(Unicom); and
 (2)
    
    SK TELECOM CO., LTD., a company incorporated in the Republic of Korea with limited liability,
whose registered office is at SK T-Tower, 11, Euljiro 2-ga, Jung-gu, Seoul, 100-999, Korea
(SKT).
 Whereas:
    It is agreed as follows:
 1.
    
    Definitions and Interpretation
  Business Day
 Companies Ordinance
 Completion
 Completion Date
 Conditions Clause 4.1
 Consideration Clause 3.1
 EGM
 Encumbrance




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Executive
 HK$
 Hong Kong
 Independent Shareholders
 Initial Stamp Duty Amount Clause 11.4
 Listing Rules
 Parties Party
 PRC
 Repurchase Code
 Repurchase Shares
 SFC
 SFC Fee Clause 11.2
 Share Repurchase
 Shares
 SKT Warranties Clause 7.1
 Stamp Office
 Stock Exchange
 Surviving Provisions Clauses 1 8 9 10.3 10.4 10.5 10.6 10.7 11.1 11.2 11.5 12 13
 Transaction Documents
 Unicom A Share Company
 Unicom Board
 Unicom Warranties Clause 6.1




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(a)
    
    headings do not affect the interpretation of this Agreement; the singular shall include the
plural and vice versa; and references to one gender include all genders;(b)
    
    any phrase introduced by the term including, include, in particularor any similar expression
shall be construed as illustrative and shall not limit the sense of the words preceding those
terms;(c)
    
    any express reference to an enactment (which includes any legislation in any jurisdiction)
shall include references to that enactment as amended, consolidated or re-enacted by or under
any other enactment before or after the date of this Agreement (except to the extent that it
increases or alters the liability of any party under this Agreement);(d)
    
    any reference to a Partyshall include a reference to that Partys successors and permitted
assigns;(e)
    
    any reference to a personshall include, without limitation, any individual, firm, company,
corporation or other body corporate, joint venture, association or partnership;(f)
    
    any reference to a subsidiaryshall have the same meaning in this Agreement as defined in the
Companies Ordinance; and(g)
    
    any reference to a Clauseis a reference to a clause of this Agreement.
 2.
    
    Sale and Purchase
  3.
    
    Consideration
 Consideration
 Clause 5.3(b)
 4.
    
    Conditions to Completion
  (a)
    
    the Executive having granted, and not having withdrawn, its approval of the Share Repurchase
under Rule 2 of the Repurchase Code and all the conditions (if any) of such approval having
been satisfied;(b)
    
    the approval of the Share Repurchase and this Agreement by at least three-fourths of the
votes cast on a poll by the Independent Shareholders in attendance in person or by proxy at
the EGM in accordance with the requirements of the Repurchase Code, the Listing Rules and the
Companies Ordinance; and




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(c)
    
    the approval of the Share Repurchase by the shareholders of Unicom A Share Company in
accordance with applicable laws, regulations and listing rules.
   5.
    
    Completion
   (a)
    
    deliver or procure to be delivered to Unicom:
 (i)
    
    a copy (certified as a true copy by a director or the company secretary of
SKT) of the resolutions of the board of directors of SKT authorising the execution of,
and performance by, SKT of its obligations under the Transaction Documents to which it
is a party;(ii)
    
    a certificate signed by a director of SKT confirming that all the SKT
Warranties are true and accurate and not misleading as at the date of this Agreement
and as at the Completion Date;(iii)
    
    the instrument(s) of transfer and sold note(s) in respect of the Repurchase
Shares duly executed by SKT in favour of Unicom; and(iv)
    
    the share certificate(s) in respect of the Repurchase Shares issued in the
name of SKT; and
 (b)
    
    procure its nominee on Unicom Board, Mr. Man Won Jung, to resign as a director of Unicom with
effect from the Completion Date and to deliver an acknowledgement to Unicom that he does not
have any claims whatsoever against Unicom for compensation for loss of office (whether
contractual, statutory or otherwise), unfair dismissal, redundancy or otherwise, he has no
disagreement with the Unicom Board and he is not aware of any matters in respect of his
resignation that needs to be brought to the attention of the shareholders of Unicom.
  (a)
    
    deliver or procure to be delivered to SKT:
 (i)
    
    a copy (certified as a true copy by a director or the company secretary of
Unicom) of the resolutions of the Unicom Board authorising the execution of, and
performance by, Unicom of its obligations under the Transaction Documents to which it
is a party; and(ii)
    
    a certificate signed by a director of Unicom confirming that all the Unicom
Warranties are true and accurate and not misleading as at the date of this Agreement
and as at the Completion Date; and




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(b)
    
    give irrevocable payment instructions to its bank to pay the Consideration (less the SFC Fee
and the Initial Stamp Duty Amount) in immediately available funds by electronic funds transfer
in HK$ to a bank account designated by SKT in writing at least three Business Days prior to
the Completion Date and shall deliver or procure to be delivered to SKT a copy of such
irrevocable payment instructions.
  Clauses 5.2 5.3
 (a)
    
    to elect to terminate this Agreement (other than the Surviving Provisions) without liability
on the part of the terminating party, except in respect of any rights and liabilities which
have accrued prior to termination or under any of the Surviving Provisions;(b)
    
    to effect Completion so far as practicable having regard to the defaults which have occurred;
or(c)
    
    to fix a new date for Completion (not being more than five Business Days after the agreed
date for Completion), in which case the foregoing provisions of this Clause 5shall apply to
Completion as so deferred.
  Clause
5.6 Clause 5. 2(a)(iv)
  6.
    
    Unicom Warranties
 Unicom Warranties




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(a)
    
    Unicom has the corporate power and authority to execute, deliver and perform its obligations
under, and consummate the transactions contemplated by, each of the Transaction Documents to
which it is a party;
 (b)
    
    the execution, delivery and performance of the Transaction Documents to which Unicom is a
party, and the consummation of the transactions contemplated thereby, have been duly
authorised by the Unicom Board and no other corporate or shareholder action on the part of
Unicom is necessary to authorise the execution, delivery and performance of the Transaction
Documents to which Unicom is a party;
 (c)
    
    this Agreement has been duly executed and delivered by Unicom and Unicoms obligations under
each of the Transaction Documents to which it is a party constitutes, or when the relevant
document is executed will constitute, valid, legal and binding obligations of Unicom
enforceable in accordance with their respective terms;
 (d)
    
    the execution, delivery and performance by Unicom of each of the Transaction Documents to
which it is a party, and the consummation of the transactions contemplated thereby, (i) will
not breach any provision of its constitutional documents, (ii) will not contravene, conflict
with or result in a breach of any law, rule or regulation applicable to it or (iii) will not
result in a breach of any material agreement or arrangement to which it is a party or by which
it is otherwise bound;
 (e)
    
    all necessary approvals or consents from third parties required by Unicom for the
consummation of the transactions contemplated by each of the Transaction Documents to which it
is a party have been or will be obtained prior to Completion; and
 (f)
    
    Unicom has sufficient distributable profits as required by Section 49B and the other relevant
provisions of the Companies Ordinance to effect the Share Repurchase.
    7.
    
    SKT Warranties
 SKT Warranties
 (a)
    
    SKT is the sole legal and beneficial owner of, and has good and valid title to, the
Repurchase Shares, free and clear of any Encumbrances;
 (b)
    
    SKT has the corporate power and authority to execute, deliver and perform its obligations
under, and consummate the transactions contemplated by, each of the Transaction Documents to
which it is a party;




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(c)
    
    the execution, delivery and performance of the Transaction Documents to which SKT is a party,
and the consummation of the transactions contemplated thereby, have been duly authorised by
the directors of SKT and no other corporate or shareholder action on the part of SKT is
necessary to authorise the execution, delivery and performance of the Transaction Documents to
which SKT is a party;
 (d)
    
    this Agreement has been duly executed and delivered by SKT and SKTs obligations under each
of the Transaction Documents to which it is a party constitutes, or when the relevant document
is executed will constitute, valid, legal and binding obligations of SKT enforceable in
accordance with their respective terms;
 (e)
    
    the execution, delivery and performance by SKT of each of the Transaction Documents to which
it is a party, and the consummation of the transactions contemplated thereby, (i) will not
breach any provision of its constitutional documents, (ii) will not contravene, conflict with
or result in a breach of any law, rule or regulation applicable to it or (iii) will not result
in a breach of any material agreement or arrangement to which it is a party or by which it is
otherwise bound; and
 (f)
    
    all necessary approvals or consents from third parties required by SKT for the consummation
of the transactions contemplated by each of the Transaction Documents to which it is a party
have been or will be obtained prior to Completion.
    8.
    
    Announcements and Confidentiality




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Clause 8.1 Clause 8.2
 9.
    
    Entire Agreement
   10.
    
    General




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11.
    
    Costs and Stamp Duty
 Clauses 11.2 11.3
 SFC Fee
  Initial Stamp Duty Amount
 Clause 11
 12.
    
    Notices




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UnicomAddress:
    
    75th Floor, The Center99 Queens Road CentralHong KongFax:
    
    +852 2121 3232Attention:
    
    Karry ChuSKTAddress:
    
    SK T-Tower11, Euljiro 2-ga, Jung-guSeoul, 100-999KoreaFax:
    
    +82 2 6100 7928Attention:
    
    Sangwoo Kim
   Clause 12.1
 13.
    
    Governing Law And Jurisdiction




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In witness whereof
 SIGNEDby Chang Xiaobing
    
    
    )For and on behalf of
    
    
    )CHINA UNICOM (HONG KONG) LIMITED
    
    
    )
    /s/ Chang XiaobingSIGNEDby Man Won Jung
    
    
    )For and on behalf of
    
    
    )SK TELECOM CO., LTD.
    
    
    )
    /s/ Man Won Jung