Question: Where is the investment holding company of Milwaukee Electric Tool Corporation based?

Context paragraphs:
Oneida Street Station: Oneida Street Station, also known as the East Wells Power Plant, was a power plant operated by The Milwaukee Electric Railway & Light Company.  Constructed from 1898 to 1900, it was designed by architect Herman Esser in neoclassical revival style.  The building is located in downtown Milwaukee, Wisconsin, at the Milwaukee River and Wells Street, which was once known as Oneida Street.  The company began operating electric street cars in 1890.  Their expanding network of streetcar and interurban railway lines were powered by several of their own power plants.  As the company generated more power than they used, they sold the excess electricity, and, as Wisconsin Energy Corporation, eventually became the major supplier of power to eastern Wisconsin.  The American Society of Mechanical Engineers (ASME) describes the plant as the "first central power station in the United States to be equipped and successfully operated with pulverized coal."

Tom Duncan: Tom Duncan is an American entrepreneur and business executive who is the current President and CEO of the North American division of the Positec Tool Corporation.  He was previously an executive for the Vermont American Tool Company, which was a joint venture between the Robert Bosch Tool Group and the Emerson Electric Company.  He has been featured in publications and media like "The New York Times", "The Wall Street Journal", and the Bloomberg Television program, "Taking Stock".

Milwaukee Electric Tool Corporation: The Milwaukee Electric Tool Corporation is a brand of Techtronic Industries, along with AEG, Ryobi, Hoover, Dirt Devil and Vax.  It produces corded and cordless power tools, hand tools, pliers, hand saws cutters, screwdrivers, trims, knives, screwdrivers, and tool combo kits.

Techtronic Industries: Techtronic Industries Company Limited (), Techtronic or TTI, is an investment holding company based in Hong Kong.  Its products include Milwaukee, AEG (AEG Powertools, licensed from Electrolux), Ryobi, Homelite, Hoover US, Dirt Devil, and Vax.  TTI employs over 20,000 staff and in 2014 had worldwide annual sales of US$4.8 billion.  Subsidiaries include AC (Macao Commercial Offshore) Limited, Baja, Inc., Homelite Consumer Products, Inc., Hoover Inc., One World Technologies, Inc. and Sang Tech Industries Limited.

The Milwaukee Electric Railway and Light Company: The Milwaukee Electric Railway and Light Company, also referred to as the Milwaukee Interurban Lines or the TMER&L is a defunct railroad in Milwaukee, Wisconsin, United States.  The Milwaukee Electric Railway & Light Co. was the largest electric railway and electric utility system in Wisconsin.  It combined several of the earlier horsecar, steam dummy and streetcar lines into one system.  Its Milwaukee streetcar lines soon ran on most major streets and served most areas of the city.  The interurban lines reached throughout southeastern Wisconsin.  TMER&L also operated the streetcar lines in Appleton, Kenosha and Racine, as well as its own switching operations at the Port Washington and Lakeside power plants.

First Pacific Bank: First Pacific Bank Limited (traditional Chinese: 第一太平銀行) is a bank based in Hong Kong.  It was a wholly owned subsidiary of the investment holding company FPB Bank Holding Company Limited (FPB Bank Holdco).  Its headquarters were in the First Pacific Bank Centre in Wan Chai.

Zhang Rongkun: Zhang Rongkun (; born 1973 in Suzhou, Jiangsu) is one of the richest men in China; he was listed as China's 16th richest man on Forbes's 2005 list of the richest people in China.  Zhang was a member of the Chinese People's Political Consultative Conference and is currently the chairman of Fuxi Investment Holding Company and is a major shareholder in Shanghai Electric Group.  He was a member of the board of directors on Shanghai Electric Group until his resignation in August 2006.  In 2008 Zhang was convicted of giving government employees $4.1 million in bribes and was sentenced to 19 years in prison.

Shenzhen International Holdings: Shenzhen International Holdings Limited () is engaged in the investment, construction and operation of logistics infrastructure facilities, third party logistics services and logistics information services.  It is held by Shenzhen Investment Holding Corporation, an investment holding institution owned by Shenzhen Government and Cheung Kong Holdings.

Alleghany Corporation: Alleghany Corporation is an investment holding company originally created by the railroad entrepreneurs Oris and Mantis Van Sweringen as a holding company for their railroad interests.  It was incorporated in 1929 and reincorporated in Delaware in 1984.

E-One Moli Energy: E-One Moli Energy Corp. is a Taiwanese manufacturer of lithium-ion batteries.  It was founded in 1998 and focused on producing high capacity energy cells for notebook computers, high-end electronics and networking communication devices under the "Molicel" brand.  In 2004,it partnered with Milwaukee Electric Tool to develop a high energy power cell for cordless power tools, with its first power tool model introduced in 2005.  It has also provided batteries to Ford for electric cars, and in 2008 became the first qualified battery supplier for BMW MINI E.

Supporting paragraphs: Milwaukee Electric Tool Corporation Techtronic Industries
Answer: Hong Kong