(English Translation)

Exhibit 10.11

Material Purchase Contract of Zhongzheng Building

Party A: (Buyer) Beijing PKU Chinafront Technology CO., LTD.

Party B: (Seller) Huapeng (Group) Co., Ltd.

Upon amicable consultation, Party A and Party B enter into the following Contract with regard to the construction project of Zhongzheng Building based on the principle of good faith cooperation.

1. The Parties agree that Party B shall provide Party A with the following products (See the Schedule of the Contract for details.).

2. Quality Standard: Produced according to the industry standard JB/T10216-2000 and the requirements in the bid document.

3. Requirements: Plastic jetting color will be silver gray.

4. Date, Place and Method of Delivery

Delivery date

Delivery date of the first installment of the goods: Party B shall provide Party A with the first installment of goods before January 5, 2005 (included). See Annex 1 of the Contract for concrete names, specifications and quantity of the goods.

Delivery date of the second installment of the goods: Party B shall provide Party A with the second installment of goods before January 10, 2005 (included). See Annex 1 of the Contract for concrete names, specifications and quantity of the goods.

Delivery date of the third installment of the goods: Party B shall provide Party A with the third installment of goods before January 15, 2005 (included). See Annex 2 of the Contract for concrete names, specifications and quantity of the goods.

Delivery method: Party B shall deliver the goods in installments according to the progress of the project as required by Party A after the execution of the Contract.

Place of delivery: Building site of Zhongzheng Building

Price: RMB 996, 980.00

Method of Payment

Method of payment of the contract price: The contract price will be calculated in RMB.

After the execution of the Contract, Party A shall pay Party B 20% of the total price of the Contract RMB 199,369.00 as the advance payment of equipments before January 4, 2005 (included); pay 60% of the total price of the Contract RMB 598,188.00 within seven working days after the arrival of all the equipments at the site and passing of the acceptance check jointly conducted by Party A and the project supervision party; pay 15% of the total price of the Contract RMB 149,547.00 within seven working days after completing the installation of bridge supports and passing the acceptance check of the separate project; and pay the remaining 5% of the total price RMB 49,849.00 upon expiration of Party B’s free guarantee period of twelve months.

Liability for Breach of Contract

If Party B fails to deliver the goods on time within the delivery term as required by the Contract, it shall pay Party A the liquidated damages at 5‰ of the total price of the equipments that shall be delivered for each delayed day. Amount of the liquidated damages shall not exceed 5% of the total invoice price of the delayed goods.

If Party A fails to make the payment within the time limit as required by the Contract, it shall pay Party A the liquidated damages at 5‰ of the amount payable at that time for each delayed day up to 5% of the total amount payable at that time.

Guarantee Period

Party B’s free guarantee period is twelve months after the delivery of the entire equipments.

Dispute Settlement

Any dispute arising during the performance the Contract shall be settled through consultation between the Parties based on the attitude of amicable cooperation. If the dispute may not be settled through consultation, either Party may bring an action before People’s Court of Haidian District.

Execution

This Contract (including its annexes) is made in four originals with equal legal effect, and each Party holds two. This Contract will take effect after sign and stamped by the Parties and remain valid within two years from the date of conclusion.

The annexes of the Contract have equal legal effect with the Contract.

Annexes

1. Schedule of the Contract

2. Annex 1 of the Contract

3. Annex 2 of the Contract

4. Annex 3 of the Contract

Miscellaneous

Matters not covered herein shall be settled by the Parties through consultation.

Party A: Beijing PKU Chinafront Technology CO., LTD.

Representative of Party A: Zhang Zongping

Seal of Party A:

Date: December 28, 2004

Address: Room 717, Block B, Yinwang Center, 113 Zhichun Road, Haidian District, Beijing City

Telephone: 82671299

Fax: 62637657

Party B: Huapeng (Group) Co., Ltd.

Representative of Party B:

Seal of Party B:

Date: December 28, 2004

Address:

Telephone: 13901123218

Fax: 0511-8410008

Schedule of the Contract

Name of the Project: Zhongzheng Building Unit: Yuan

Sequence Number	Name		Specification		Unit		Quantity		Unit Price		Amount		Remarks
1		Plastic Jetting Bridge Support		300*200		M		2700		138		372600
2		Plastic Jetting Bridge Support		(200+100)*100		M		2800		103		288400		With clapboard
3		Plastic Jetting Bridge Support		(250+50)*100		M		1200		103		123600
4		Plastic Jetting Bridge Support		200*100		M		600		69		41400
5		Plastic Jetting Bridge Support		(400+200)*200		M		50		270		13500		With clapboard
6		Plastic Jetting Bridge Support		(300+100)*100		M		80		146		11680		With clapboard
7		Plastic Jetting Bridge Support		300*100		M		400		90		36000
8		Plastic Jetting Bridge Support		1000*200		M		50		470		23500
9		Plastic Jetting Bridge Support		600*200		M		80		222		17760
10		Plastic Jetting Bridge Support		(300+300)*200		M		5		270		1350		With clapboard
11		Plastic Jetting Bridge Support		50*50		M		30		22		660
12		Plastic Jetting Bridge Support		200*200		M		6		116		696
13		Horizontal T-junctions of equal diameters		300*200		Section		63		228		14364
14		Horizontal T-junctions of equal diameters		300*100		Section		152		125		19000
15		Horizontal bend of equal diameters		300*200		Section		80		221		17680
16		Horizontal bend of equal diameters		300*100		Section		170		87		14790
17
18
19		Total										996,980

Huapeng (Group) Co., Ltd.

December 28, 2004

Annex 1 of the Contract

Name of the Project: Zhongzheng Building Unit: Yuan

Sequence Number	Name		Specification		Unit		Quantity
1		Plastic Jetting Bridge Support		300*200		M		1000
2		Plastic Jetting Bridge Support		(200+100)*100		M		1000
3		Plastic Jetting Bridge Support		(250+50)*100		M		400
4		Plastic Jetting Bridge Support		200*100		M		200
5		Plastic Jetting Bridge Support		300*100		M		125
6		Horizontal T-junctions of equal diameters		300*200		Section		50
7		Horizontal T-junctions of equal diameters		300*100		Section		50
8		Horizontal bend of equal diameters		300*200		Section		30
9		Horizontal bend of equal diameters		300*100		Section		40
10
11
12		Total

Annex 2 of the Contract

Name of the Project: Zhongzheng Building Unit: Yuan

Sequence Number	Name		Specification		Unit		Quantity
1		Plastic Jetting Bridge Support		300*200		M		1000
2		Plastic Jetting Bridge Support		(200+100)*100		M		1000
3		Plastic Jetting Bridge Support		(250+50)*100		M		400
4		Plastic Jetting Bridge Support		200*100		M		200
5		Plastic Jetting Bridge Support		300*100		M		125
6		Total

Annex 3 of the Contract

Name of the Project: Zhongzheng Building Unit: Yuan

Sequence Number	Name		Specification		Unit		Quantity
1		Plastic Jetting Bridge Support		300*200		M		700
2		Plastic Jetting Bridge Support		(200+100)*100		M		800
3		Plastic Jetting Bridge Support		(250+50)*100		M		400
4		Plastic Jetting Bridge Support		200*100		M		200
5		Plastic Jetting Bridge Support		(400+200)*200		M		50
6		Plastic Jetting Bridge Support		(300+100)*100		M		80
7		Plastic Jetting Bridge Support		300*100		M		150
8		Plastic Jetting Bridge Support		1000*200		M		50
9		Plastic Jetting Bridge Support		600*200		M		80
10		Plastic Jetting Bridge Support		(300+300)*200		M		5
11		Plastic Jetting Bridge Support		50*50		M		30
12		Plastic Jetting Bridge Support		200*200		M		6
13		Horizontal T-junctions of equal diameters		300*200		Section		13
14		Horizontal T-junctions of equal diameters		300*100		Section		102
15		Horizontal bend of equal diameters		300*200		Section		50
16		Horizontal bend of equal diameters		300*100		Section		130
17
18
19		Total