1.Date of the board of directors resolution:2017/03/16

2.Date for convening the shareholders' meeting:2017/06/21

3.Location for convening the shareholders' meeting:

 Conference Room 101, Association of Industries in Hsinchu Science Park,

 No.2, Zhanye 1st Rd., Hsinchu City 300, Taiwan (R.O.C.).

4.Cause or subjects for convening the meeting

  (1)Report Items:

    1.1 2016 Business Report.

    1.2 Audit committee's report of 2016 audited financial report.

    1.3 The Company and its subsidiaries HUGA Optotech Inc. & Formosa

        Epitaxy Incorporation short-form merger

        execution situation report.

    1.4 The status of guarantee and endorsement in 2016.

5.Cause or subjects for convening the meeting

  (2)Matters for Ratification:

    2.1 To ratify 2016 Business Report and Financial Statements.

    2.2 Proposal for 2016 Deficit Compensation.

6.Cause or subjects for convening the meeting

  (3)Matters for Discussion:

    3.1 To amend ”Procedures for Loaning Funds to Other Parties”.

    3.2 To amend ”Acquisition or Disposal Procedures of Asset”.

    3.3 To release the Directors from non-competition restrictions.

7.Cause or subjects for convening the meeting

  (4)Elections:None

8.Cause or subjects for convening the meeting

  (5)Other Proposals:None

9.Cause or subjects for convening the meeting

  (6)Extemporary Motions:None

10.Book closure starting date:2017/04/23

11.Book closure ending date:2017/06/21

12.Any other matters that need to be specified:

  Pursuant to Article 172-1 of the Company Act, the Company will accept

  proposals proposed to be discussed at the Regular Shareholders' Meeting by

  shareholders holding one percent 1% or more of the total number of

  outstanding shares of the Company from 2017/04/14 to 2017/04/24.

  The proposal and the nomination shall be submitted with contact information

  during such period for the Board of Directors' review and response. The

  place for shareholders to submit is the Investor Relations Department of

  Finance and Accounting Center of Epistar.

  (Address: 21, Li-hsin Rd., Hsinchu Science Park, Hsinchu 300, Taiwan.

  TEL:03-5678000 ext.133795.)