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NUMBER                                                                    SHARES

COMMON STOCK               [OPLINK COMMUNICATIONS LOGO]             COMMON STOCK

               INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

                                                               CUSIP 68375Q 10 6
                                             SEE REVERSE FOR CERTAIN DEFINITIONS

THIS CERTIFIES that

IS THE RECORD OWNER OF

               FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK,
                         PAR VALUE $0.001 PER SHARE, OF
                           OPLINK COMMUNICATIONS, INC.
(hereinafter called the "Corporation") transferable on the books of the
Corporation by the holder hereof, in person or by duly authorized attorney,
upon surrender of this Certificate properly endorsed. This Certificate and
the shares represented hereby are issued and shall be held subject to all of
the provisions of the Certificate of Incorporation and Bylaws of the
Corporation and all amendments thereto, to all of which the holder by the
acceptance hereof consents.
     This certificate is not valid until countersigned and registered by the
Transfer Agent and Registrar.
     WITNESS the facsimile seal of the Corporation and the facsimile
signatures of its duly authorized officers.

Dated:

/s/ Bruce D. Horn                  [SEAL]                /s/ Fredrick R. Fromm
Treasurer                                                President

COUNTERSIGNED AND REGISTERED:
     THE BANK OF NEW YORK,
          TRANSFER AGENT AND REGISTRAR,

BY

                         AUTHORIZED SIGNATURE

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                      OPLINK COMMUNICATIONS, INC.

     The Corporation will furnish without charge to each stockholder who so
requests, a copy of the powers, designations, preferences and relative,
participating, optional, or other special right of each class of stock or
series thereof and the qualifications, limitations or restrictions of such
preferences and/or rights. Such requests shall be made to the Secretary of
the Corporation at the principal office of the Corporation.

KEEP THIS STOCK CERTIFICATE IN A SAFE PLACE. If this stock certificate is
lost, stolen, or destroyed, the Board of Directors of the Corporation may
require the owner, or his legal representative, to give the Corporation a
bond to indemnify the Corporation against any claim that may be made against
them on account of the alleged loss, theft, or destruction of any such
certificate as a condition to the issuance of a replacement certificate.

     The following abbreviations, when used in the inscription on the face of
this Certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM--as tenants in common      UNIF GIFT MIN ACT--       Custodian
                                                      -------         ----------
                                                      (Cust)            (Minor)
TEN ENT--as tenants by the                            under Uniform Gifts to
         entireties                                   Minors Act
                                                                ----------------
JT TEN--as joint tenants with                                        (State)
        right of survivorship
        and not as tenants in
        common

      Additional abbreviations may also be used though not in the above list.

For value received,               hereby sell(s), assign(s) and transfer(s) unto
                   --------------

PLEASE INSERT SOCIAL SECURITY OR OTHER
   IDENTIFYING NUMBER OF ASSIGNEE
/                                /
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  (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING ZIP CODE OF ASSIGNEE)

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                                                                          Shares
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of the capital stock represented by the within Certificate, and do(es) hereby
irrevocably constitute and appoint

                                                                        Attorney
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to transfer the said stock on the books of the within-named Corporation with
full power of substitution in the premises.

Dated,
      ----------------------------------

                                        X
                                          --------------------------------------

                                        X
                                          --------------------------------------

                              NOTICE:   THE SIGNATURE(S) TO THIS ASSIGNMENT
                                        MUST CORRESPOND WITH THE NAME(S) AS
                                        WRITTEN UPON THE FACE OF THE CERTIFICATE
                                        IN EVERY PARTICULAR WITHOUT ALTERATION
                                        OR ENLARGEMENT OR ANY CHANGE WHATEVER.

By:
   ------------------------------------------------
THE SIGNATURE(S) MUST BE GUARANTEED BY AN "ELIGIBLE GUARANTOR INSTITUTION" AS
SUCH TERM IS DEFINED IN RULE 17Ad-15 UNDER THE SECURITIES EXCHANGE ACT OF
1934, AS AMENDED.<PAGE>

This announcement is neither an offer to purchase nor a solicitation of an offer
to sell Clearnet Shares. The Offers are being made solely by the Offers to
Purchase, dated September 20, 2000, and the related Letter of Transmittal and is
not being made to (nor will tenders be accepted from or on behalf of) holders of
Clearnet Shares in any jurisdiction in which the mailing of the Offers or the
acceptance thereof would not be in compliance with the laws of such
jurisdiction. Purchaser and Parent (as defined below) may, under certain
circumstances, take such action as is necessary to make the Offers in any
jurisdiction and extend the Offers to holders of Clearnet Shares in such
jurisdiction. In jurisdictions whose laws require that the Offers be made by a
U.S. licensed broker or dealer, the Offers shall be deemed to be made on behalf
of Parent and Purchaser by J.P. Morgan Securities Inc. and TD Securities
(U.S.A.) Inc. (the "U.S. Dealer Managers") or by one or more registered brokers
or dealers licensed under the laws of such jurisdiction.
Notice of Offers to Purchase
All Outstanding Class A Non-Voting Shares, Class B Shares, Class C
Subordinate Voting Shares and Class D Subordinate Voting Shares of
Clearnet Communications Inc.
for Non-Voting Shares, Cash or a Combination Thereof
As Described in the Offers to Purchase
(Subject to the limitations described below)
by
TELUS Corporation
and/or its wholly-owned indirect subsidiary
612459 B.C. Ltd.

TELUS Corporation, a corporation organized under the laws of British Columbia,
Canada ("Parent") and/or 612459 B.C. Ltd. ("Purchaser"), a corporation organized
under the laws of British Columbia, Canada and a wholly-owned indirect
subsidiary of Parent, are offering to acquire all the issued and outstanding
Class A Non-Voting Shares, Class B Shares, Class C Subordinate Voting Shares and
Class D Subordinate Voting Shares, including those which may become outstanding
on the exercise of options, warrants, convertible debentures or other rights to
purchase such shares (collectively, the "Clearnet Shares"), of Clearnet
Communications Inc., a holding company continued under the Canada Business
Corporations Act (the "Company"), in exchange for, at the election of the
holder, (i) Cdn.$70.00 in cash for each Class A Non-Voting Share, Class C
Subordinate Voting Share or Class D Subordinate Voting Share or Cdn.$0.70 in
cash for each Class B Share; (ii) 1.636 Non-Voting Shares of Parent for each
Class A Non-Voting Share, Class C Subordinate Voting Share or Class D
Subordinate Voting Share or 0.01636 Non-Voting Share of Parent for each Class B
Share, or (iii) a combination of the foregoing, subject to pro ration and to 50%
of the total consideration for the Offers being satisfied by the payment of cash
and 50% of the total consideration for the Offers being satisfied by the issue
of Non-Voting Shares of Parent, and, upon the terms and subject to the
conditions set forth in the Offers to Purchase and Circular, dated September
20, 2000 and in the related Letter of Transmittal (which, together with any
amendments or supplements thereto, collectively constitute the "Offers").

THE OFFERS AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:01 A.M., NEW YORK TIME, ON
OCTOBER 19, 2000, UNLESS THE OFFERS ARE EXTENDED.

The Offers are conditioned upon, among other things, the satisfaction or waiver
of certain conditions to the obligations of Parent, Purchaser and the Company to
consummate the Offers, including (1) there being validly tendered and not
withdrawn prior to the expiration of the Offers that number of Clearnet Shares
which represents not less than 66.67% of the outstanding Clearnet Shares of each
class on a fully diluted basis; and (2) receipt by Parent, Purchaser and the
Company of certain governmental and regulatory approvals.

Certain stockholders of the Company who, in the aggregate, own Clearnet Shares
representing more than 66.67% of the Class B Shares, Class C Subordinate Voting
Shares and Class D Subordinate Voting Shares have entered into shareholder
agreements with Parent pursuant to which they have agreed, among other things,
to tender pursuant to the Offers, and not to withdraw, their Clearnet Shares.

The Offers are being made pursuant to the Support Agreement, dated as of August
20, 2000, between Parent and the Company (the "Support Agreement"), which
provides, among other

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things, that Parent and Purchaser will make the Offers. Pursuant to the Support
Agreement, among other matters, the Company confirmed the determination of its
board of directors to recommend to its shareholders that they accept the Offers
and tender their Clearnet Shares pursuant thereto.

The Board of Directors of the Company has unanimously (1) determined that the
Offers are in the best interests of the Company and the consideration offered is
fair to its shareholders, and (2) recommended that the Company's shareholders
accept the Offers and tender their Clearnet Shares pursuant thereto.

For purposes of the Offers, Parent and Purchaser shall be deemed to have
accepted for exchange or payment Clearnet Shares validly tendered and not
properly withdrawn when, as and if Parent and Purchaser give written notice to
Montreal Trust Company of Canada (the "Depositary"), as agent for the tendering
shareholders, of their acceptance for exchange or payment of such Clearnet
Shares. The Depositary will act as agent for tendering shareholders for the
purpose of receiving Non-Voting Shares of Parent and payments from Parent and
Purchaser and transmitting such shares and payment to validly tendering
shareholders. In all cases, exchange and payment of Clearnet Shares tendered and
accepted for exchange and payment pursuant to the Offers will be made only after
timely receipt by the Depositary or Computershare Investor Services, LLC (the
"U.S. Forwarding Agent") of (i) certificates representing such Clearnet Shares
or timely confirmation of a book-entry transfer of such Clearnet Shares into the
Depositary's account at The Depository Trust Company ("DTC"), (ii) a properly
completed and duly executed Letter of Transmittal (or facsimile thereof) with
any required signature guarantees or an "agent's message" (as defined in the
Offers to Purchase) in connection with a book-entry transfer and (iii) any other
documents required by the Letter of Transmittal.

Subject to certain exceptions, Parent and Purchaser may, in their sole
discretion, extend the Offers beyond the then scheduled Expiry Time (as defined
in the Offers to Purchase) or vary the terms of the Offers, in each case, by
giving written notice (or other communication in writing) of such extension or
variation to the Depositary. Any such extension will be followed by public
announcement thereof no later than 9:00 a.m., New York City time, on the next
business day after the previously scheduled expiration date. During any such
extension, except as set forth below, all Clearnet Shares previously tendered
and not properly withdrawn will remain subject to the Offer and will remain
tendered, subject to the right of a tendering shareholder to withdraw such
shareholder's Clearnet Shares.

In addition, Parent and Purchaser may extend the Offers for an aggregate period
not to exceed 20 business days (a "subsequent offering period"), beginning after
the time that Parent and Purchaser pay for and exchange Clearnet Shares tendered
in the Offers. During a subsequent offering period, shareholders may tender, but
not withdraw, Clearnet Shares, and receive the consideration paid in the Offers.
Pursuant to Rule 14d-11 under the U.S. Securities Exchange Act of 1934, no
withdrawal rights apply to Clearnet Shares tendered in the Offers and accepted
for payment or exchange. During a subsequent offering period, Parent and
Purchaser will promptly deliver Non-Voting Shares of Parent and/or cash in
consideration for Clearnet Shares tendered.

Tenders of Clearnet Shares made pursuant to the Offers are irrevocable, except
that Clearnet Shares tendered pursuant to the Offers may be withdrawn at any
time prior to 12:01 A.M., New York City time on Thursday, October 19, 2000, and
unless previously accepted for exchange or payment pursuant to the Offers,
Clearnet Shares may also be withdrawn at any time after November 6, 2000. For a
withdrawal of Clearnet Shares tendered to be effective, a written, facsimile
transmitted or electronic (producing a printed copy) notice of withdrawal must
be timely received by the Depositary or the U.S. Forwarding Agent at one of its
addresses set forth in the Offers to Purchase. Any notice of withdrawal must (i)
be signed by or on behalf of the person who signed the Letter of Transmittal
that accompanied the Clearnet Shares to be withdrawn (on Notice of Guaranteed
Delivery in respect thereof), and (ii) specify the name of the person who
tendered the Clearnet Shares to be withdrawn, the number of Clearnet Shares to
be withdrawn, the name(s) in which the certificate(s) representing such
Clearnet Shares are registered, if different from that of the person who
tendered such Clearnet Shares and the certificate number(s). The signature(s) on
the notice of withdrawal must be guaranteed by an "eligible institution" (as
defined in the Offers to Purchase) or in some other manner acceptable to the
Depositary (except in the case of Clearnet Shares tendered by an eligible
institution). If Clearnet Shares have been tendered pursuant to the procedures
for book-entry transfer, any notice of withdrawal must specify the name and

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number of the account at DTC to be credited with such withdrawn Clearnet Shares
and must otherwise comply with DTC's procedures. All questions as to the form
and validity (including time of receipt) of notices of withdrawal will be
determined by Parent and Purchaser, in their sole discretion, and their
determination will be final and binding on all parties.

The information required to be disclosed by paragraph (d)(1) of Rule 14d-6 of
the General Rules and Regulations under the Exchange Act is contained in the
Offers and Circular, dated September 20, 2000, and is incorporated herein by
reference.

In connection with the Offers, the Company has provided Parent and Purchaser
with the names and addresses of all record holders of Clearnet Shares and
security position listings of Clearnet Shares held in stock depositories. The
Offers to Purchase and Circular, the related Letter of Transmittal and other
related materials will be mailed to registered holders of Clearnet Shares and
will be furnished to brokers, dealers, commercial banks, trust companies and
similar persons whose names, or the names of whose nominees, appear on the
Company's shareholder list or, if applicable, who are listed as participants
in a clearing agency's security position listing for subsequent transmittal
to beneficial owners of Clearnet Shares.

The Offers to Purchase and Circular and related Letter of Transmittal contain
important information that should be read carefully before any decision is
made with respect to the Offers.

Questions or requests for assistance or for additional copies of the Offers to
Purchase and Circular, the related Letter of Transmittal and other related
tender offer materials may be directed to the Information Agent or the Dealer
Managers at their respective addresses and telephone numbers set forth below,
and copies will be furnished promptly at Purchaser's expense. No fee or
commission will be payable by the Company's shareholders who deliver Clearnet
Shares directly to the Depositary or U.S. Forwarding Agent or utilize the
facilities of the soliciting dealer group to accept an Offer.

The Information Agent for the Offers is:

(add logo here)

17 State Street, 10th Floor
New York, New York 10004
Brokers and Banks call collect: (212) 440-9800 or
All Others Call Toll Free: (800) 223-2064
The Dealer Managers for the Offers are:

In Canada:

TD Securities Inc.
66 Wellington Street West
8th Floor, P.O. Box 1
Toronto Dominion Bank Tower,
Toronto Dominion Centre
Toronto, Ontario M5K 1A2

J.P. Morgan Securities
Canada Inc.
Royal Bank Plaza
South Tower, Suite 1800
Toronto, Ontario
M5J 2J2

In the United States:

J.P. Morgan Securities Inc.
60 Wall Street
New York, New York 10260

TD Securities (U.S.A.) Inc.
31 West 52nd Street
New York, New York 10019

September 20, 2000

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