Document:

<PAGE>

                                                                   EXHIBIT 10.19

                                                           [ENGLISH TRANSLATION]

                          SPORTS GROUND LAYING CONTRACT

I.   Parties to the Contract

     Party A: Baoding Tianwei Yingli New Energy Resources Co., Ltd.

     Party B: Baoding Yingli Municipal Public Facilities Company

II.  Specifications, Engineering Quantity and Price (to be calculated based on
     the actual area after the completion of construction)

<TABLE>
<CAPTION>
                                        Thickness                    Area     Unit Price    Total Price
        Project Name                      (mm)          Color       (m(2))   (Yuan/ m(2))     (Yuan)
        ------------                    ---------   -------------   ------   ------------   -----------
<S>                                     <C>         <C>             <C>      <C>            <C>
Polyurethane Plastic Basketball Court       8       Red and Green     608         135          82080
   (Granular Resin Coat)

Total [INFORMATION MISSING IN THE
   ORIGINAL DOCUMENT]
</TABLE>

III. Project Schedule:

     Based on the situation of the foundation (whether suitable for plastic coat
     laying), _________ [INFORMATION MISSING IN THE ORIGINAL DOCUMENT] will
     access the site, and complete the construction within twelve (12) effective
     calendar days (any day on which the work has been stopped as a result of
     rain, damp weather, noncompliant foundation shall be deemed as an
     ineffective calendar day).

IV.  Quality Requirements:

     The project shall be in compliance with the national standard GB/T14833-93
     to allow standard sample acceptance, and the construction shall be carried
     out in strict compliance with the Construction Organization and Design
     Plan.

V.   Warranty Period

     The warranty service shall be made available with respect to the plastic
     sports ground under proper use free of charge for three (3) years after the
     completion of construction; in the event of any improper use or any other
     damage, the maintenance fees shall be collected at cost; and lifetime
     maintenance is available.

                                       1

<PAGE>

     Party B shall be responsible for renovating the plastic coat in the event
     of any quality problems (except as caused by the foundation), such as
     fading or cracking.

VI.  Payment Terms

     1. Upon execution of this contract, Party A shall pay 30% of the total
     project payment as down payment to Party B; Upon delivery of the materials
     to the construction site, Party A shall another 30% of the total project
     payment to Party B; Upon completion of laying of bottom plastic, Party A
     shall 20% of the total project payment to Party B; Upon completion of
     construction, Party A shall organize the acceptance and once the project
     has passed the acceptance test, Party A shall pay up the total project
     payment. (A quality assurance deposit equal to 5% of the total amount
     calculated based on the actual area after the completion of construction
     shall be retained and be paid in full at one time one (1) thereafter during
     which there shall have been no qualities problems).

     2. Party A shall organize the acceptance within three (3) days after the
     completion of construction. The ground shall not be used prior to the
     acceptance, and the acceptance shall be deemed by Party B to have been
     completed in accordance with the quality requirements of Party A once the
     ground has been used.

VII. Responsibilities and Duties of the Parties

     Party A:

     1.   To provide or confirm the construction drawings and the relevant
          materials relating to the site; and provide qualified foundation.

     2.   To provide water and electricity free of charge and facilitate the
          construction.

     3.   To organize the maintenance of construction site; and organize the
          acceptance of the project in a timely manner.

     Party B:

     1.   To ensure the construction progress as agreed in the contract.

     2.   To carry out the safe and civilized construction in accordance with
          the design and process requirements.

     3.   To implement a product return visit system and perform good
          after-sales work.

VIII. Liability for Breach

     1. Party A and Party B shall strictly implement this contract upon
     effectiveness thereof. Neither Party A nor Party B may terminate this
     contract at

                                       2

<PAGE>

     its sole discretion; otherwise the terminating party shall pay 20% of the
     total contract price to the other party as compensation.

     2. In the event that Party A fails to make any payment on the date provided
     herein, it shall pay 0.1% of the total contract price for each day on which
     such payment has been delayed to Party B as compensation.

     3. In the event that Party B fails to complete construction according to
     the construction schedule, it shall pay 0.1% of the total contract price
     for each day on which such construction has been delayed to Party A as
     compensation.

IX.  Project Site:

X.   This contract shall be executed in two (2) original copies, and come into
     effect on the date on which this contract has been signed and sealed by
     Party A and Party B.

XI.  Anything not addressed herein shall be solved by Party A and Party B
     through consultation.

Party A                                 Party B

Name (Seal):                            Name (Seal):
Baoding Tianwei Yingli                  Baoding Yingli Municipal Public
New Energy Resources Co., Ltd.          Facilities Company
Address: ____________________________   Address: 722 Cuiyuan Street, Baoding
                                                 High-tech Industrial
                                                 Development Zone
Attorney-in-fact:                       Attorney-in-fact:

/s/ Wang Junqing                        /s/ Di Limei
-------------------------------------   ----------------------------------------
Telephone: __________________________   Telephone: 0312-3118830
Bank: _______________________________   Bank: Baoding Jianhua Sub-branch, ADBC
Bank Account: _______________________   Bank Account: 50-580101040005393

                         Date of Execution: May 15, 2006

                                       3

<PAGE>

                             PURCHASE ORDER CONTRACT
               BAODING YINGLI MUNICIPAL PUBLIC FACILITIES COMPANY

Purchaser: Baoding Tianwei Yingli New Energy Resources Co., Ltd.

<TABLE>
<CAPTION>
   No.         Description of Product       Specification            Quantity               Unit       Unit Price   Amount   Remarks
   ---      ---------------------------   ----------------   ------------------------   ------------   ----------   ------   -------
<S>         <C>                           <C>                <C>                        <C>            <C>          <C>      <C>
01          Standard Basketball Stand                                     2                 set            5400      10800

02          Plastic Net                                                  85                 m(2)            110       9350

03          Reflective Fence                                             12                 piece            75        900

04          Warning Board                                                 1                 piece           480        480

RMB         (in Words) Twenty One Thousand Five Hundred and Thirty Yuan

Agreed      Time of Delivery              Prior to September 10, 2006
Proposal
            Payment Terms                 Payment shall be made upon arrival and acceptance of the goods.

            Note                          Warranty Period: One Year.

            Transportation Site                              Select Transportation      Automobile [X], Train, Plane, Ship,
                                                             Method                     Express Delivery

Consignee                                                    Consignee'
                                                             Telephone No.

Notes: 1.   This Contract shall be executed in two original copies with each of the purchaser and the supplier
            holding one copy thereof.

       2.   This contract shall come into effect once signed and sealed by the parties, and shall be
            terminated upon completion of implementation thereof and after the goods have been delivered and
            the payment has been made.

       3.   Invoice                                          VAT Invoice

       4.   Representative of Purchaser   /s/ Wang Junqing   Representative of Seller   /s/ Di Limei
                                          ----------------                              ------------

       5.   Telephone                                        Cell Phone

       6.   Address                                          Address                    3055 Fuxing Zhong Road, High-tech
                                                                                        Industrial  Development Zone
</TABLE>

                                      Contract Execution Date: September 8, 2006
             Baoding Yingli Municipal Public Facilities Company (Corporate Seal)

Company's Telephone: 0312-3118830 3394340
Bank: Jianhua Sub-branch, Agricultural Development Bank of China (ADBC)
Bank Account: 50-580101040005393

                                        4

<PAGE>

                             PURCHASE ORDER CONTRACT
               BAODING YINGLI MUNICIPAL PUBLIC FACILITIES COMPANY

Purchaser: Baoding Tianwei Yingli New Energy Resources Co., Ltd.

<TABLE>
<CAPTION>
   No.         Description of Product       Specification           Quantity                Unit       Unit Price   Amount   Remarks
   ---      ---------------------------   ----------------   ------------------------   ------------   ----------   ------   -------
<S>         <C>                           <C>                <C>                        <C>            <C>          <C>      <C>
01          Court Lamp                           10m                    4                    set          9600      38400

            (Each lamp has 6 projecting lamps (Philips) for standard court with galvanized and plastic sprayed
            lamp posts. The construction cost is included.)

RMB         (in Words) Thirty Eight Thousand and Four Hundred Yuan

Agreed      Time of Delivery              2006
Proposal
            Payment Terms                 Payment shall be made upon arrival and acceptance of the goods.

            Note                          Warranty Period: One Year.

            Transportation Site                              Select Transportation      Automobile [X], Train, Plane, Ship,
                                                             Method                     Express Delivery

Consignee                                                    Consignee'
                                                             Telephone No.

Notes: 1.   This Contract shall be executed in two original copies with each of the purchaser and the supplier
            holding one copy thereof.

       2.   This contract shall come into effect once signed and sealed by the parties, and shall be terminated
            upon completion of implementation thereof and after the goods have been delivered and the payment has
            been made.

       3.   Invoice                                          VAT Invoice

       4.   Representative of Purchaser   /s/ Wang Junqing   Representative of Seller   /s/ Di Limei
                                          ----------------                              ------------

       5.   Telephone                                   Cell Phone       13582228891

       6.   Address                                     Address          3055 Fuxing Zhong Road, High-tech
                                                                         Industrial Development Zone
</TABLE>

                                                        Contract Execution Date:
             Baoding Yingli Municipal Public Facilities Company (Corporate Seal)

Company's Telephone: 0312-3118830 3394340
Bank: Jianhua Sub-branch, Agricultural Development Bank of China (ADBC)
Bank Account: 50-580101040005393

                                        5<PAGE>

                                                                   EXHIBIT 10.20

                                                           [ENGLISH TRANSLATION]

           BAODING YINGLI MUNICIPAL PUBLIC FACILITIES COMPANY CONTRACT

Supplier: Baoding Yingli Municipal Public Facilities Company
Purchaser: Baoding Tianwei Yingli New Energy Resources Co., Ltd.

Contract No.: YL20060526-1
Execution Date: May 26, 2006

The purchaser and the supplier hereby agree through consultation that the
purchaser shall place an order with the supplier for the products set forth
below and the parties shall enter into this contract for compliance with the
following terms:

<TABLE>
<CAPTION>
                                                           Unit
                                                           Price   Amount
 Description    Specification (Length x Height)    Unit   (Yuan)   (Yuan)
-------------   -------------------------------   -----   ------   ------
<S>             <C>                               <C>     <C>       <C>
 06JZH - A05             16 m x 1.6 m               m      2150     34400
     Head                 gear drive              piece    5000      5000
    Trail         made of steel channel and
                     fixed with steel angle

Total Amount:   Thirty Nine Thousand and Four Hundred Yuan (in Words)
                (RMB39,400)
</TABLE>

Notes: The product shall be warranted for one (1) year and maintained for
       lifetime, except for man-made and natural disasters.

I.   Use of the Product: The product purchased by the purchaser shall be used
     for the gate of the company.

II.  The purchaser shall pay 30% of the payment for goods upon execution of this
     contract and the outstanding amount within three (3) days after acceptance,
     and make full payment of 5% quality assurance deposit within one (1) year.
     The final settlement shall be made based on the actual length of the
     trails.

III. The supplier shall arrange the production after receiving the payment for
     goods. The supplier shall be responsible for the installation of the
     trails; provided however, that the purchaser shall notify the purchaser
     before May ___ [INFORMATION MISSING IN THE ORIGINAL DOCUMENT], 2006. In
     addition, the purchaser shall be responsible for the concrete and civil
     construction work necessary for the installation. In the event of any
     renovation of the project, the purchaser shall reserve place for or dig the
     duct as required, and carry out the second grouting upon completion of the
     installation by the supplier. The supplier shall finish the installation of
     the gate body within fifteen (15) days upon installation of trails. The
     purchaser shall conduct the acceptance test for the product within five (5)

                                        1

<PAGE>

     days after the installation thereof. The products shall be deemed to have
     been accepted if such acceptance test is not conducted during such period.
     No products shall be used before acceptance. In the event that any product
     fails to pass the acceptance test, the purchaser shall have the right to
     require the supplier to reconstruct.

IV.  Detailed Address for Installation: Yingli Construction Site, Baoding
     High-tech Industrial Development Zone; Transportation Fee: __/__
     [INFORMATION MISSINIG IN THE ORIGINAL DOCUMENT] Yuan, to be paid by the
     Supplier.

V.   Upon execution of this contract, the purchaser shall be responsible for the
     following preparation work:

     1.   To make available 220V power (1000W) required by the laying of
          products, and to connect the pipeline to the place where the product
          is installed;

     2.   To make available 380V power (7500W) required for the installation and
          construction free of charge;

     3.   The purchaser shall designate the place for product installation and
          send personnel to the construction site to guide the installation at
          all times.

     4.   To make available the rain-proof and moisture-proof location for
          placing the switches;

     5.   If there is any civil construction work, it shall be completed at
          least seven (7) days earlier. If it is necessary to delegate such
          responsibility to the supplier, the supplier shall collect the
          relevant fees in accordance with the rules of the company.

IV.  Payment Terms:

     1.   In the event that any unit in Baoding makes any payment by check for
          transfer, the name of such unit shall be filled in correctly for the
          issuance of the check; otherwise, the purchaser shall be liable for
          any loss of the payment for goods as if the supplier had not received
          such payment.

          Bank:           Baoding Jianhua Sub-branch, ADBC
          Bank Account:   50-580101040005393
          Account Name:   Baoding Yingli Municipal Public Facilities Company

                                        2

<PAGE>

     2.   In the event of any payment in cash by the purchaser, the payment may
          only be made against presentation by the payee of "receipt for cash
          payment" issued by the financial staff of the supplier.

     3.   Any payment of contract price from any other place (outside Baoding)
          shall be made by bank wire transfer or bank draft to an account
          designated by the supplier.

VIII. The supplier may produce advertisement head-box for the purchaser;
     provided, however, that the purchaser shall provide a sample in writing in
     advance, otherwise, the supplier will use its own advertisement content.

IX.  Liability for Breach:

     The supplier shall pay liquidated damages equal to / % of the amount
     payable as a result of its delay in delivery or payment for no cause.

X.   Dispute Resolution:

     Any dispute arising from the performance hereof shall be resolved through
     consultation. If no settlement can be reached, any party may refer such
     dispute to the People's Court of Baoding North City Area.

XI.  Supplemental Provisions:

     Display Screen Content: Yingli Solar Power Generation, Environmental Clean
     Energy. Display Date and Time.

XII. This contract shall be executed in two (2) original copies with each party
     holding one (1) copy. This contract shall come into effect on May ___
     [INFORMATION MISSING IN THE ORIGINAL DOCUMENT], 2006.

Purchaser:                              Supplier:

Name (Corporate Seal):                  Name (Corporate Seal):
Baoding Tianwei Yingli New Energy       Baoding Yingli Municipal Public
Resources Co., Ltd.                     Facilities Company
Telephone: ____________________         Telephone: 0312-3118830

By (Representative):                    By (Representative):

/s/ Zhou Jinyan                         /s/ Di Limei
-------------------------------------   ----------------------------------------
                                        Date of Execution: May 26, 2006

                                        3

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00123-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00123-of-00352.parquet"}]]