Document:

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                                                                   Exhibit 10.10

                            SUPPLEMENTARY CONTRACT I

FIRST PARTY: GUANGDONG ZHUHAI HIGH TECHNOLOGY RESULTS INDUSTRIALIZATION
             DEMONSTRATION BASE COMPANY, LTD.

SECOND PARTY: ZHUHAI OPLINK COMMUNICATIONS COMPANY, LTD.

     In accordance with the PEOPLE'S REPUBLIC OF CHINA CONTRACTS ACT and the
relevant laws, First and Second Parties have reached the following agreement
through friendly negotiations based on the principles of mutual benefit, mutual
support and joint development:

     [1] Due to the rapid development of the operations of Zhuhai Oplink
Communications Company, Ltd., Second Party urgently needs a large quantity of
dormitories to resolve the problem of living quarters for its employees.

     [2] After negotiations between the two parties, First Party agrees to build
one new dormitory building (dormitory building number 2--Explanation: First
Party's original dormitory building is called dormitory building number 1 in
this contract; the new dormitory building as referred to in this contract is
called dormitory building number 2) within the Guangdong Zhuhai High Technology
Results Industrialization Demonstration Base, to be used to resolve Second
Party's urgent need for a large quantity of dormitories. Ownership of the
dormitory newly built by First Party (dormitory building number 2) shall belong
to First Party.

     [3] Second Party shall lease from First Party One Hundred Twenty-five
ordinary rooms in dormitory building number 2, with a lease term of five years,
from December 1, 2000 through November 30, 2005. The total rent, service fees
and property management fees for each room per month shall be 440 YUAN (of
which, rent shall be 200 YUAN/month, service fees shall be 200 YUAN/month, and
property management fees shall be 1 YUAN/square meter per month (with the
exception of dormitory building number 2, the property management fees for other
properties belonging to First Party and leased by Second Party shall remain at
1.5 YUAN/square meter per month) (Note: The building area of each room is
approximately 40 square meters). When this contract has been signed for three
full years, with the consent of First Party, property leased by Second Party may
be subleased by Second Party to a third party, in which case Second Party shall
collect rent, management fees and other fees from the third party. However, this
shall not affect any terms of the contractual agreements in execution for the
five-year term by First and Second Parties.

     [4] In order to accelerate the construction of dormitory building number 2,
Second Party shall prepay to First Party rent and management fees equivalent to
45% of the total cost of building dormitory building number 2 totaling THREE
MILLION FIVE HUNDRED THOUSAND YUAN RENMINBI. In order to satisfy the Zhuhai
municipal government regulation relating to capital construction, i.e. "the
constructing unit must have funding of 90% of the total cost of building in
place prior to reporting and beginning construction," Second Party must effect
payment of prepaid rent and prepaid management fees totaling not less than Three
Million One Hundred Fifty Thousand YUAN RENMINBI to First Party by April 15,
2000, in order to ensure the timely beginning and completion of construction;
the balance of

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Three Hundred Fifty Thousand YUAN shall be paid by Second Party in accordance
with project progress.

     [5] The standard for ordinary rooms as referred to in paragraph [3] of this
contract shall be: building area of approximately 40 square meters per room,
each room being equipped with a toilet.

     [6] Second Party shall prepay to First Party rent for factory building,
dormitory building and office building space and service fees and property
management fees totaling Three Million Five Hundred Thousand YUAN. Said rent,
service fees and property management fees prepaid by Second Party shall be
deducted in full over three years from rent, services fees and property
management fees paid by Second Party to First Party as follows: in the first
year, 800,000 YUAN shall be deducted; in the second year, 1,000,000 YUAN shall
be deducted; and in the third year, 1,700,000 YUAN shall be deducted. The
specific deduction plan for each month within the stipulated term shall be
separately agreed upon by persons authorized by the two parties.

     [7] In order to compensate Second Party for the nearly three years' worth
of interest on the rent and management fees for One Hundred Twenty-five ordinary
rooms in dormitory building number 2 prepaid by Second Party to First Party,
First Party shall not increase the rent on the One Hundred Twenty-five ordinary
rooms leased by Second Party for a period of three years.

     [8] Upon execution of this Agreement, First Party shall immediately design
and commence construction of dormitory building number 2, in order to ensure
availability of use according to schedule. If Second Party remodels the leased
building space, Second Party must provide drawings and other related information
to First Party for its records. If Second Party does not renew the lease upon
expiration of the lease term, Second Party must restore the building space to
its original appearance (the state in which First Party originally provided the
building space to Second Party), unless First Party consents to the return of
the building space to First Party in the then current condition of the
buildings.

     [9] This Agreement shall take effect once both parties have signed it and
affixed their seals thereto.

     [10] Losses incurred by the opposite party as the result of one party's
breach of contract shall be compensated by the defaulting party.

     [11] There are four identical copies of this Agreement, two copies to be
held by each of First and Second Parties, with equal legal effect.

     [12] This Contract is a supplementary contract to Contract (Yue-Ke-Ji-Di
2000-011).

Seal of First Party:                        Seal of Second Party:
Guangdong Zhuhai High Technology            Zhuhai Oplink Communications
Results Industrialization Demonstration     Company, Ltd.
Base Company, Ltd.

Legal Representative of First Party:        Legal Representative of Second Party
/s/ illegible                               /s/ illegible

                        March 28, 2000          (Zhuhai, China)<PAGE>

                                                                   Exhibit 10.11

                           SUPPLEMENTARY CONTRACT (II)

         First Party:  Guangdong Zhuhai High-technology Results
         Industrialization Demonstration Base Co., Ltd.

SECOND PARTY:     ZHUHAI OPLINK COMMUNICATIONS TECHNOLOGY CO., LTD.

         Pursuant to the ECONOMIC CONTRACT LAW OF THE PEOPLE'S REPUBLIC OF CHINA
and related laws, First Party and Second Party, having conducted amicable
consultations in adherence to the principles of mutual benefit, mutual support,
and shared growth, reach the following agreement:

(1)      Pursuant to the provisions regarding "Exemption within the zone from
         the increased power and water capacity fee and 20% drop in electricity
         and water prices" in the Zhuhai (Guangdong Province) Municipal
         Government Document No. (2000) 21, and in accordance with the "they who
         use shall invest" principle for construction of transformer and
         distribution facilities, Second Party urgently needs, on account of the
         actual rapid expansion of its production at the Base (Guangdong Zhuhai
         High-technology Results Industrialization Demonstration Base), to
         establish two transformer and distribution facilities with capacities
         of approximately 1,000 KVA each (said facilities include: high-tension
         lines, high-voltage board, transformers, low-voltage distribution
         facilities, low-voltage transmission facilities, distribution housing,
         and other such facilities connecting from No. 1 Factory Building,
         hereinafter abbreviated as transformer and distribution facilities).

(2)      Title to the transformer and distribution facilities demanded by Second
         Party shall belong to Second Party after Second Party has invested the
         funds and completed construction. First Party shall assist Second Party
         with performing the relevant formalities such as reporting on
         construction.

(3)      First Party shall, for consideration, provide Second Party with the
         building unit needed for construction of the transformer and
         distribution facilities: The building unit is located at First Floor of
         First Party's Factory Building No. 2. The building unit area is 116.83
         square meters (the final use area plus a reasonable portion of the
         common area). First Party shall collect from Second Party rent and
         service fees amounting to 12 yuan per square meter monthly fees (rent
         of 3 yuan per square meter per month, with the balance being service
         fees). The building will be leased for five years (from June 1, 2000 to
         May 30, 2005). Building property management fees, rent increases, and
         water and electricity charges shall be paid according to the terms in
         the relevant lease for Factory No. 2 (expenses are calculated in the
         same ways as for floors 3, 4, 5, and 6 of Factory Building No. 2).

(4)      If, after all the contracts and agreements made between Second Party
         and First Party expire, Second Party does not lease First Party's
         property again, First Party promises that it shall at that time
         repurchase the transformer and distribution facilities that Second
         Party constructed itself. (After First Party repurchases, title shall
         belong to First Party.)

         The price at which First Party purchases the transformer and
         distribution facilities of Second Party = the original price of Second
         Party's transformer and distribution facilities

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         -- (Years of use x Annual depreciation expense for Second Party's
         transformer and distribution facilities) -- Scrap value of Second
         Party's transformer and distribution facilities -- Cost of repairing
         equipment.

         Where:

                  The depreciation period for Second Party's transformer and
                  distribution facilities is eight years, the depreciation
                  method is the straight-line method, the scrap value of Second
                  Party's transformer and distribution facilities is 5% of the
                  original price of Second Party's transformer and distribution
                  facilities, and the cost of repairing the equipment refers to
                  transformer and distribution facilities repair costs incurred
                  during the period of use by Second Party.

(5)      The original price of Second Party's transformer and distribution
         facilities is determined according to the bid invitation price. It
         shall be the lower of the budget price according to the budget and
         financial statement center of the Bank of Construction and the actual
         bid invitation price.

(6)      The use period for Second Party's transformer and distribution
         facilities begins on the day that Second Party's transformer and
         distribution facilities have been completed and have passed an
         acceptance check. After Second Party completes construction of the
         transformer and distribution facilities, it shall provide the relevant
         contracts and technical drawings to First Party so that it can use them
         to determine the original price of Second Party's transformer and
         distribution facilities. When First Party repurchases Second Party's
         transformer and distribution facilities, Second Party shall guarantee
         that the entire set of equipment can function perfectly. Moreover, it
         shall provide First Party with the entire set of drawings, acceptance
         information, and necessary documents.

(7)      This agreement takes effect after the two parties sign it and affix to
         it their seals.

(8)      This agreement exists in duplicate. Each party possesses one, and each
         has equal legal effect.

(9)      This contract is a supplementary contract for contract (Yue-Ke-Ji-Di
         2000-011).

Seal of First Party:                                    Seal of Second Party:
Guangdong Zhuhai
High-technology Results Industrialization
Demonstration Base Co., Ltd.

Legal Representative of First Party:      Legal  Representative of Second Party:
/s/ illegible                             [seal:] Co., Ltd.

         Date: [illegible] 28, 2000 (Zhuhai, China)

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