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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2017
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Detail Information of Subsidiaries

The detail information of the subsidiaries at the end of reporting period was as follows:

 

           

Establishment

and Operating

Location

   Percentage of Ownership    
Name of Investor   Name of Investee   Main Businesses and Products     December 31,
2016		   December 31,
2017		   Note

TSMC

  

TSMC North America

  

Selling and marketing of integrated circuits and other semiconductor devices

  

San Jose, California, U.S.A.

   100%   100%   —
 

TSMC Japan Limited (TSMC Japan)

  

Customer service and supporting activities

  

Yokohama, Japan

   100%   100%   a)
 

TSMC Partners, Ltd. (TSMC Partners)

  

Investing in companies involved in the design, manufacture, and other related business in the semiconductor industry and other investment activities

  

Tortola, British Virgin Islands

   100%   100%   a)
 

TSMC Korea Limited (TSMC Korea)

  

Customer service and supporting activities

  

Seoul, Korea

   100%   100%   a)
 

TSMC Europe B.V. (TSMC Europe)

  

Customer service and supporting activities

  

Amsterdam, the Netherlands

   100%   100%   a)
           

Establishment

and Operating

Location

   Percentage of Ownership    
Name of Investor   Name of Investee   Main Businesses and Products     December 31,
2016		   December 31,
2017		   Note

TSMC

  

TSMC Global, Ltd. (TSMC Global)

  

Investment activities

  

Tortola, British Virgin Islands

   100%   100%   —
 

TSMC China Company Limited (TSMC China)

  

Manufacturing, selling, testing and computer-aided design of integrated circuits and other semiconductor devices

  

Shanghai, China

   100%   100%   —
 

TSMC Nanjing Company Limited (TSMC Nanjing)

  

Manufacturing, selling, testing and computer-aided design of integrated circuits and other semiconductor devices

  

Nanjing, China

   100%   100%   b)
 

VentureTech Alliance Fund III, L.P. (VTAF III)

  

Investing in new start-up technology companies

  

Cayman Islands

   98%   98%   a)
 

VentureTech Alliance Fund II, L.P. (VTAF II)

  

Investing in new start-up technology companies

  

Cayman Islands

   98%   98%   a)
 

TSMC Solar Europe GmbH

  

Selling of solar related products and providing customer service

  

Hamburg, Germany

   100%   100%   a), c)
 

VisEra Technologies Company Ltd. (VisEra Tech)

  

Engaged in manufacturing electronic spare parts and in researching, developing, designing, manufacturing, selling, packaging and testing of color filter

  

Hsinchu, Taiwan

   87%   87%   d)

TSMC Partners

  

TSMC Design Technology Canada Inc. (TSMC Canada)

  

Engineering support activities

  

Ontario, Canada

   100%   100%   a)
 

TSMC Technology, Inc. (TSMC Technology)

  

Engineering support activities

  

Delaware, U.S.A.

   100%   100%   a)
 

TSMC Development, Inc. (TSMC Development)

  

Investing in companies involved in the manufacturing related business in the semiconductor industry

  

Delaware, U.S.A.

   100%   100%   —
 

InveStar Semiconductor Development Fund, Inc. (ISDF)

  

Investing in new start-up technology companies

  

Cayman Islands

   97%   97%   a), e)
 

InveStar Semiconductor Development Fund, Inc. (II) LDC. (ISDF II)

  

Investing in new start-up technology companies

  

Cayman Islands

   97%   97%   a), e)

TSMC Development

  

WaferTech, LLC (WaferTech)

  

Manufacturing, selling and testing of integrated circuits and other semiconductor devices

  

Washington, U.S.A.

   100%   100%   —

VTAF III

  

Mutual-Pak Technology Co., Ltd. (Mutual-Pak)

  

Manufacturing of electronic parts, wholesaling and retailing of electronic materials, and researching, developing and testing of RFID

  

New Taipei, Taiwan

   58%   39%   a), f)
 

Growth Fund Limited (Growth Fund)

  

Investing in new start-up technology companies

  

Cayman Islands

   100%   100%   a)

VTAF III, VTAF II and TSMC

  

VentureTech Alliance Holdings, LLC (VTA Holdings)

  

Investing in new start-up technology companies

  

Delaware, U.S.A.

   100%   —   a), g)

  Note a: This is an immaterial subsidiary for which the consolidated financial statements are not audited by the Company’s independent accountants.

 

  Note b: Under the investment agreement entered into with the municipal government of Nanjing, China on March 28, 2016, the Company will make an investment in Nanjing in the amount of approximately US$3 billion to establish a subsidiary operating a 300mm wafer fab with the capacity of 20,000 12-inch wafers per month, and a design service center. TSMC Nanjing was established in May 2016.

 

  Note c: TSMC Solar Europe GmbH is under liquidation procedures.

 

  Note d: To simplify investment structure, VisEra Tech owned by VisEra Holding Company (VisEra Holding) was transferred to TSMC in the third quarter of 2016. In October 2016, VisEra Holding was incorporated into TSMC Partners, the subsidiary of TSMC.

 

  Note e: ISDF and ISDF II are under liquidation procedures.

 

  Note f: Starting December 2017, the Company no longer had the majority of voting power and control over Mutual-Pak. As a result, Mutual-Pak is no longer consolidated and is accounted for using the equity method.

 

  Note g: VTA Holdings completed the liquidation procedures in April 2017.