Investor relation Contact 
Spokesperson：GUAN,SIN-HUEI 
Position title：Vice President 
Contact number ：(02)2792-2988
E-mail ：pr@hcgc.com.tw

First Alternate Spokesperson：JHU,HUEI-JYU 
Position title：Vice President
Contact number ：(02)2792-2988 
E-mail ：fina-dept03@hcgc.com.tw 
 
Second Alternate Spokesperson：CHEN,WEI-HONG
Position title：Vice President
Contact number ：(02)2792-2988
E-mail ：wei@hcgc.com.tw