Principal shareholders

2019.04.23 Each share has a par value of NT$10
Name
of principal shareholders
Shares
Current
Shareholding
Percentage
Way-Chih
Investment Co., LTD.
43,819,290 5.35%
Way-Lien Technology Inc. 38,588,231 4.71%
Cher
Wang
32,272,427 3.94%
Hon-Mou
Investment Co., Ltd.
23,197,081 2.83%
Wen-Chi
Chen
22,391,389 2.73%
iShares
IV Public Limited Company
14,226,385 1.74%
VANGUARD
EMERGING MARKETS STOCK INDEX FUND, A SERIES OF VANGUARD INTERNATIONAL EQUITY
INDEX FUNDS
13,072,079 1.60%
JPMorgan
Chase Bank N.A., Taipei Branch in custody for Vanguard Total International
Stock Index Fund, a series of Vanguard Star Funds
10,595,301 1.29%
ABP
Pension Investment Fund under the custody of JPMorgan Chase Bank
10,432,000 1.27%
Kun-Chang
Investment Co, Ltd.
9,322,824 1.14%

Stock Transfer Agent

China Trust Commercial Bank
5F, 83 Chung-Ching S. Rd. Sec 1,
Taipei 100, Taiwan

PHONE: 866-2-6636-5566

FAX: 866-2-2382-2198

WEB: chinatrust.com.tw/english/index. htm

GDR Depository Bank

Citibank Depository Receipt Services
388 Greenwich Street
New York, NY 10013, U.S.A

PHONE: 877-248-4237

OUTSIDE USA: 816-843-4281

E-MAIL: citibank@shareholders-online.com

WEB: www.citi.com/dr