Document:

Exhibit 4.27

 Exhibit 4.27 
  
 [English Translation] 
  
 No. LH0117 
  
 Tester Equipment Lease Agreement 
  
 The Lease Agreement (the “Lease Agreement”), dated as of December 3, 2002 is made by and between ThaiLin Semiconductor Corp. (“Party A”) and ChinpMOS TECHNOLOGIES INC. (“Party B”) for the
leasing of tester related equipment from Party A to Party B. The agreement shall be executed in two counterparts, with one copy retained by Party A and Party B, respectively. 
  

	1.	 	Object/Maintenance Duty/Rent 

  

	 	1-1	 	Object 

  
 Three (3) sets of ADVANTEST TESTER T5581H (including six (6) sets of M6741 Handler) and accessory parts (see attachments) in the possession of Party B. 
  

	 	1-2	 	Custodian Duty 

  
 Party B shall assist Party A by providing value certificates of the equipment to facilitate obtaining insurance policies (including transportation,
installation, water, fire and etc.). Party A shall pay all expenses and insurance costs relating to the transportation of the Object from the disassembly until the arrival at Party B’s premises and Party B shall pay all expenses and insurance
costs relating to the transportation of the Object from the disassembly until the arrival at Party A’s premise. 
  

	 	1-3	 	Rent and payment 

  

	 	(1)	 	It is mutually agreed that every set of equipment (one set of ADVANTEST TESTER T5581H and two sets of M6741 Handler) is leased at NT$885,000 (pre-tax) per month and the total amount
for leasing three (3) sets is NT$2,655,000 (pre-tax). Party A will invoice Party B such amount with 5% appreciation business tax by the 5th every month. Party A must pay by sight check to Party B or deposit at the banking account designated below by
Party B by the 25th every month: 

  
 Beneficiary:
ChinpMOS TECHNOLOGIES INC. 
 Unicode: 16130042 
 Address: 1, R & D Road 1, Hsinchu Science-Based Industrial Park, 
 Attention: Miss Yaping Tseng

  

	 	(2)	 	The rent shall be calculated from December 25, 2002. The rental period will be six months. Party A has a right of first refusal if Party B wishes to renew, and both Parties shall
act pursuant to 2-2 (1). 

  

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	2.	 	Transportation and lease period 

  

	 	2-1	 	Date of transportation and personnel in charge on both sides: 

  

	 	(1)	 	Party A and Party B have negotiated and agreed to transport the equipment from Party B’s factory to Party A’s on December 18, 2002 or from Party A’s to Party B’s
on the termination date. 

  

	 	(2)	 	Party A is responsible for all transportation related costs, including packaging, haulaging, insurance (in accordance with 1-2), disassembly, installation and etc. when the
equipment is transported from Party B’s factory to Party A’s while Party B is responsible for those costs when the equipment is transported from Party A’s factory to Party B’s. 

  

	 	(3)	 	Responsible personnel for Shipping Related Matters: 

  
 Party A:    Head of the Equipment Department Liming Kang 
                  (TEL: 03-5985959 Ext 5602)

  
 Party B:    Deputy Head
of Equipment Department Junyi Liu 
                  (TEL: 03-5770055 Ext 1057) 
  

	 	(4)	 	Responsible personnel for Leasing Related Matters: 

  
 Party A:    Manager of Purchasing Department Cuiling Yao 
                  (TEL: 03-5985959 Ext 3400)

  
 Party B:    Head of
Purchasing Department Yaolin Chen 
                  (TEL: 03-5770055 Ext 1065) 
  

	 	2-2	 	Lease period/Obligations and the Return of the Object 

  

	 	(1)	 	The lease will be from December 18, 2002 to June 17, 2003. The date for returning the Object shall be postponed to the next business day if the termination date falls on a holiday.
If the lease is extended, Party A shall give a notice to Party B ten days prior to the termination date (which can be postponed to the next business day if the date falls on a holiday); if Party B wishes not to renew, Party B shall give Party A a
notice ten days prior to the termination date (which can be postponed to the next business day if the date falls on a holiday). 

  

	 	(2)	 	Equipment maintenance during the lease: Party A is obligated to maintain the equipment by conducting periodic maintenance in accordance with Party A’s internal standard
maintenance procedure and keep a written record; if it is necessary for ADVANTEST Co. Ltd to do spot repair work on Party A’s premise for any material shutdown or malfunction, Party A shall notify Party B of such; if any damage or loses occurs
to the equipment during the lease, Party A shall take full responsibility to compensate and return the Object to Party B in good condition and that the Object shall have passed the equipment inspection in Party B’s factory.

  

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	 	(3)	 	Party B shall have the ownership right to the Object during the lease, and Party A is prohibited from selling, leasing, transferring, mortgaging, pledging or disposing in any other
way the Object to harm Party A’s interests. If any other third party may harm the ownership right of the Object, either by sealing the Object for inspection or disposing in any other way, Party A shall certify the ownership right of Party B and
notify Party B of such promptly and resolve the issue pursuant to Party B’s instructions. 

  

	 	(4)	 	Party A shall maintain a complete written record of all disassembly, change or repair of the equipment (accessories included) and fax all written records to Junyi Liu, Deputy Head
of Equipment and Engineering Department of Party B (FAX: 03-5668991) upon completion of each such action. 

  

	 	(5)	 	With respect to any lawsuits arisen between the two parties, both parties agree that Hsinchu District Court shall be the court of first instance. 

  

	3.	 	Effective Date 

  

	 	3-1	 	Effective Date 

  
 The Agreement shall take effect on December 18, 2002 upon execution by representatives of both parties, and expire upon the equipment being returned to
and examined by Party B. 
  
 Party
A:    ThaiLin Semiconductor Corp. 
  
 Address: No. 4 Yende Road, Hsinchu Industrial Park, Hukou, Hsinchu 
  
 By (Person in charge): Hsuerong Li 
  
 Party B:    ChinpMOS TECHNOLOGIES INC. 
  
 Address: 1, R & D Road 1, Hisinchu Science-Based Industrial Park 
  
 By (General Manager): Shih-Jye Cheng 
  

 3Exhibit 4.28

 Exhibit 4.28 
  
 [English Translation] 
  
 No. 0R 0058 
  
 Joint Engagement Letter 
  
 ULTIMA ELECTRONIC CORP. and ChinpMOS TECHNOLOGIES INC. (jointly as “Engaging Parties”) hereby engage SUN-FUND SECURITIES LTD. (the “Engaged Party”) to conduct an evaluation of Ultima (Jiangsu) Electronic Co. Ltd.

  

	I.	 	Evaluation Period shall start from the initiation of evaluation through the completion of the evaluation, and it can only be adjusted upon further communication and agreement by the
three parties. 

  

	I	 	Payment Method: 

  

	 	A.	 	The Engaged Party shall specify in its Payment Notice the breakdown of the expenses. 

  

	 	B.	 	Advanced payment: the Engaged Parties shall pay travel, postage and facsimile expenses in full amount as incurred. 

  

	 	C.	 	Evaluation fee shall be divided between the Engaging Parties pursuant to their written agreement, and the Engaged Party shall invoice each Engaging Party accordingly.

  

	II	 	Miscellaneous 

  

	 	A.	 	If the Engaged Party cannot complete evaluation due to the Engaging Parties’ fault, notice shall be given to the Engaging Parties to terminate this engagement and Engaged Party
shall be entitled to its fees. 

  

	 	B.	 	Each of the three copies of this Joint Engagement Letter is held by each of the Engaging Parties and the Engaged Party. 

  

	 	C.	 	The Civil Law and relevant laws and regulations shall govern any issues that have not been specified in this Letter. 

  
 Engaging party: ULTIMA ELECTRONIC CORP. 
 Representative: Shanhsi Wang 
 Address: 6/F, No. 100 Lide Street, Chonghe

 Tel: (02) 22256300 
 Unicode: 34589696 
  
 Engaging party: ChinpMOS TECHNOLOGIES INC. 
 Representative: Hung-Chiu Hu 
 Address: 1, R & D Road 1, Hsinchu
Science-Based Industrial Park 
 Tel: (03) 577-0055 
 Unicode:
16130042 
  
 Trustee: SUN-FUND SECURITIES LTD. 
 Representative: Mali Hu Sun 
 Address: No. 14, 2/F, No. 508, Section 5,
Chonghsiao East Road, Taipei 
 Tel: (02) 23466277 
 Unicode:
70480565Exhibit 4.29

 Exhibit 4.29 
  
 [English Translation] 
  
 Lease Agreement 
  
 between 
  
 ChipMOS TECHNOLOGIES INC. 
  
 and 
  
 SyncMOS Technologies, Inc. 
  
 Agreement No. LH0103 
  
 June 1, 2002 
  

 Lease Agreement 
  
 ChipMOS TECHNOLOGIES INC. (“Party A” hereafter), the Leasor, and SyncMOS Technologies, Inc. (“Party B”
hereafter), the Leasee, entered into this Lease Agreement for purposes of leasing certain part of the premises at 1, R & D Road 1, Hsinchu Science-Based Industrial Park (as described in detail in the exhibit hereto) for office and storage space
(the “Premises” hereafter). Both Parties hereby have agreed as follows, and this Agreement shall supersede the Lease Agreement, dated May 22, 2001, between both Parties: 
  

	1.	 	Premises for Leasing 

  

	 	(1)	 	Twenty acres of office space located at 1, R & D Road 1, Hsinchu Science-Based Industrial Park and ten acres of products warehouse in Building A to be used as storage space.
Thirty acres in total. 

  

	 	(2)	 	The hallways in the Premises, the elevators and staircases in the warehouse and the paths around the warehouse, all the utilities, air conditioners, fire equipment and other
facilities shall be commonly used by both Parties. 

  

	2.	 	Lease Term 

  

	 	(1)	 	The lease term shall be two years, starting from May 13, 2002. 

  

	 	(2)	 	Should Party B intends to extend the lease term, it shall request a written consent from Party A three month prior to the expiration day. The Premises shall continue to be used
after the Agreement is renewed by both Parties (The rent and deposit shall be negotiated separately). Upon the expiration of the lease term or once it is terminated earlier, the relationship between the Leasor and Leasee terminates, hence Party B
shall immediately move out the Premises, return the Premises to Party A, and shall by no means delay or demand any reimbursement. In the event that by then Party B fails to perform as required hereunder, Party A shall have its own employees do the
cleaning instead and shall discard anything left in the Premises; Party B shall bear all the related expenses. 

  

	3.	 	Early Termination 

  

	 	(1)	 	Each Party may terminate this Agreement any time, provided that such Party shall inform the other Party in writing two months earlier. Consequently Party A shall settle the rent and
other expenses by the length of Party B’s stay (if less than one month, it shall be calculated as one full month). After deducting any amount pursuant to Section 10 hereof, Party 

  

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 A shall return to Party B all the remaining pre-paid rent and deposit with no interest.

  

	 	(2)	 	In the event that Party B fails to perform as required in (1) above of this Section 3, it shall indemnify any loss incurred by Party A. In addition to the due amount calculated by
the method set forth above, Party B shall make an indemnification payment to Party A equal to three months’ rent. 

  

	4.	 	Lease Fees 

  

	 	(1)	 	Rent: The rent for the office area shall be NT$15,200 per month (NT$760 per acre excluding tax, a receipt to be given upon the payment), and the rent for the storage area shall be
NT$64,000 per month (including labor charge of NT$56,000 and automatic storage charge NT$8,000, excluding tax, a receipt to be given upon the payment), payable once in every three months. Should there be any rent arrears, Party B shall pay the
interest at a rate of 9% per annum. Party A may raise the rent according to the movement of the previous year’s Price Index published by the government authority. 

  

	 	(2)	 	Deposit: Party B shall deposit an amount equal to three months’ rent (NT$237,600). 

  

	5.	 	Telephone Equipment 

  
 There are pre-installed telephone lines at the Premises. Party B shall request for telephone connections on its own and shall bear the actual expenses
calculated by the computer system. 
  

	6.	 	Internal Construction and Decoration 

  

	 	(1)	 	Party A shall be responsible for the installation of the air conditioning system at the Premises. After the execution of this Agreement, Party B shall bear all the expenses if it
decides to make certain changes in the layouts, such as adding dividers between rooms, or to add equipment. Should there be any changes to be made on the original facilities at the Premises, illustrated plans must be presented and Party A’s
prior written consent must be acquired. 

  

	 	(2)	 	During lease term, Party A shall be responsible for the maintenance of the original building structures and public facilities, meanwhile Party B shall be responsible at its own cost
for the maintenance of any alterations, decorations, room dividers or added equipment made by Party B and shall keep them in clean and good condition. 

  

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	 	(3)	 	When Party B moves out of the Premises, it shall resume the original looks by taking away the room dividers or decorations it made, unless Party A has no objections to retaining
them. 

  

	7.	 	Use of the Premises and Limitations 

  

	 	(1)	 	Party B may not sublease, assign or lent the whole or part of the Premises to any third party. 

  

	 	(2)	 	During the lease term, Party B shall maintain and use the Premises in good faith, and shall not use the Premises for any other purposes without Party A’s consent.

  

	 	(3)	 	Party B shall not perform any illegal or prohibited operations or any other illegal actions at the Premises. 

  

	 	(4)	 	Party B shall not install any high-voltage equipment or neon lights. Other than certain specially designed sockets, electrical boilers or heaters may not be used elsewhere.

  

	 	(5)	 	Party B shall not cook without permission or use any inflammable materials as room dividers. 

  

	 	(6)	 	Party B shall not store or pile up anything in public areas, hallways or equipment rooms or occupy such area for its own use. 

  

	 	(7)	 	Inflammable or dangerous materials may not be taken into or stored at the Premises. 

  

	 	(8)	 	Party B shall be responsible for its own valuables. All doors and windows shall be locked after work. The security guards appointed by Party B must be registered in advance at Party
A’s security and management departments. 

  

	 	(9)	 	Party B shall be responsible at it own cost to maintain and verify the proper use of the Premises, public security, normal functions of the publish facilities, sanitation and other
matters relating to the Premises. Party B shall take legal responsibilities for any default, violations or deviations, indemnify any loss incurred by Party A, and bear all civil, criminal or administrative liabilities. 

  

	8.	 	Both Parties agree to allocate the charges or fees on water, air conditioning, electricity (including the maintenance premium), parking, security guards, sanitation and so on, based
on each month’s actual amount of charges and the acres used by each Party. Should there be any price increase in such charges, both 

  

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 Parties agree to adjust the allocations so as to cover the increase in Party A’s expenses.

  

	9.	 	Indemnification 

  
 Party B shall take good care of the Premises and its public facilities and equipment. Should there be any damage or stain caused purposely or unpurposely
by any of Party B’s employees or customers, Party B shall be responsible for restoration or indemnification, unless such damage results from force majeure. 
  

	10.	 	Defaults 

  

	 	(1)	 	Party B shall perform all of its obligations hereunder. Party A may terminate this Agreement any time when Party B breaches. Consequently Party B shall immediately move out of the
Premises, return to Party A the Premises as in its original state and pay all the rent due, fees and indemnification fees pursuant to Section 3 hereof without any delay or demand for reimbursement. 

  

	 	(2)	 	In the event that any insurance policy for the Premises or any other related insurance policies are invalidated or the insurance premium increases as a result of any Party B’s
actions, Party B shall indemnify all the damages, losses, or increased costs and expenses incurred by Party A. 

  

	 	(3)	 	In the event that any Party decides to terminate this Agreement or the lease term expires, Party B shall immediately return the Premises and pay the late fee for any days of delay
twice as much of the rent. Party A shall deduct any default indemnification charges and any other payment in arrears before it returns the remaining deposit to Party B. Such an action by Party A shall not waive Party B’s obligation for properly
returning the Premises to Party A. Should there be any default by Party A, it shall immediately return to Party B the full amount of Party B’s deposit. 

  

	11.	 	This Agreement is executed in two counterparts, and each Party retains one copy. 

  

	12.	 	All matters related to this Agreement shall be performed hereunder. Any matter that is not covered herein shall be resolved pursuant to applicable laws. 

  

	13.	 	Both Parties hereby agree, in the event of any dispute with regard to this Agreement, Hsinchu District Court, shall be the court of first instance. 

  

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 Executions: 
  

	         Party A (Leasor) : 
	 ChipMOS TECHNOLOGIES INC. 

	         Representative: 
	 Shih-Jye Cheng (Seal) 

	         Address: 
	 1, R & D Road 1, Hsinchu Science-Based Industrial Park 

  

	         Party B (Leasee): 
	 SyncMOS Technologies, Inc. 

	         Representative: 
	 Hung-Chiu Hu (Seal) 

	         Address: 
	 1, R & D Road 1, Hsinchu Science-Based Industrial Park 

  
 Date: June 1, 2002 
  

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