1.Date of occurrence of the event:2018/06/25

2.Company name:Epistar Corporation

3.Relationship to the Company (please enter ”head office” or

  ”subsidiaries”):head office

4.Reciprocal shareholding ratios:NA

5.Cause of occurrence:

 The Board of director passed the resolution on 25 June 2018 that the

 original headquarters and the company's registered address (No. 5, Li-Hsin

 5th Road, Hsinchu Science Park, Hsinchu Science and Technology Park) has

 been planned to transform into a research and development center and a

 6-inch production line. The headquarters of the company’s registered

 address is proposed to relocate from ”no.5 Li-Hsin 5th Road, Hsinchu City,

 Hsinchu Science Park ” to ”, No. 21, Li-Hsin Road, Hsinchu Science Park

 Hsinchu City”. The change of the basis date of company's registered

 address will be authorized to the Chairman for decision.

6.Countermeasures:None.

7.Any other matters that need to be specified:None.