1.Name and nature of the subject matter (if preferred shares,the terms and 

  conditions of issuance shall also be indicated,e.g.dividend yield):

Prolight Opto Technology Corp.- Private placement Common share

2.Date of occurrence of the event:2012/05/18

3.Volume, unit price, and total monetary amount of the transaction:

8,000,000shares； NT$17.5；NT$140,000,000.

4.Counterpart to the trade and its relationship to the Company(if the 

  trading counterpart is a natural person and furthermore is not an actual 

  related party of the Company, the name of the trading counterpart is not 

  required to be disclosed):

Prolight Opto Technology Corp.；Epistar’s subsidiary invests the company,

no actual related party of the company.

5.Where the counterpart to the trade is an actual related party,a public 

  announcement shall also be made of the reason for choosing the related    

  party as trading counterpart and the identity of the previous owner 

  (including its relationship with the company and the trading counterpart), 

  price of transfer, and date of acquisition:N/A

6.Where a person who owned the property within the past five years has been 

  an actual related person of the company, a public announcement shall also 

  include the dates and prices of acquisition and disposal by the related 

  person and the person’s relationship to the company at those times:N/A

7.Matters related to the creditor's rights currently being disposed of 

  (including types of collateral of the disposed creditor's rights;if the 

  creditor's rights are creditor's rights toward a related  person, the name 

  of the related person and the book amount of the creditor's rights toward 

  such related person currently being disposed of must also be announced):N/A

8.Anticipated profit or loss from the disposal (not applicable in cases of 

  acquisition of securities) (where originally deferred, the status or 

  recognition shall be stated and explained):N/A

9.Terms of delivery or payment (including payment period and monetary 

  amount), restrictive covenants in the contract, and other important 

  stipulations:One-time payment on settlement date

10.The manner in which the current transaction was decided, the reference 

   basis for the decision on price, and the decision-making department:

Pursuant to the terms of private placement of common shares.

the decision-making department: The Company’s chairman was authorized by

the board meeting to proceed within certain amount.

11.Current cumulative volume, amount, and shareholding percentage of 

   holdings of the security being traded (including the current trade) and 

   status of any restriction of rights (e.g.pledges):

8,000,000 shares；NT$140,000,000；17.39%；Comply with security law

12.Current ratio of private placement of securities (including the current 

   trade) to the total assets and shareholder's equity as shown in the most 

   recent financial statement and the operating capital as shown in the most 

   recent financial statement:

ratio of total assets:1.84%

ratio of shareholder's equity:2.42%

the operational capital as shown in the most recent financial statement:

NT$14,464,428 thousand

13.Concrete purpose or use of the acquisition or disposition:

Long-term investment

14.The discrepancy between the reference price of private placement and the 

   transaction amount per share is 20 percent or more of the transaction  

   amount:yes

15.Net worth per share of company underlying securities acquired or disposed 

   of:NT$13.02 

16.Do the directors have any objection to the present transaction?:No