About US Tong Kwang History
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1951

Established Tong Kwang Machinery Factory at Lanzhou Street in Taipei with an area of about 990m2 occupied

1962

Organized Tong Kwang Valve Industrial Co., Ltd. at Hami Street in Taipei with an area of about 1650m2 occupied plus an additional installation of semiautomatic casting equipment.

1970

Increased the capital to NT$210,000; signed a 5-year technical cooperation agreement with well-known KITZ VALVES factory in Japan, introduced the novel manufacturing technology and management knowledge, expanded a lot of installations of professional processing machine and became the first vale manufacturer to use the valve-use processing machine in Taiwan.
1980
Cooperated with European and American manufacturers of famous brands, CRANE, KENKINS, POWELL, etc., for joint production, introduced novel manufacturing technology and automatic precision machines.

1982

Increased the capital to NT$41,000,000; expanded the precision processing machines, earned a rating of A-Class factory as the first valve maker in Taiwan to receive such rating; honored the qualification mark for many items of product.
1985
Increased the capital to NT$71,000,000; expanded the factory building and administration building; also, purchased extra Italian valve exclusive-use processing machine and auto professional machine, etc.; granted the CGA and CSA certificate for authentication of factory and product; launched a computerized operation company-wide; honored by Ministry of Economic Affairs as an example of factory with computerized operation for small & medium size enterprises.
1986 Cooperated with Japan KURIMOTO as agent for its stainless steel butterfly series product, collaborated with FURUKAWA as agent for its high temperature and high pressure valves made of ductile iron.

1987

Completed the construction of new factory building and administration building, moved the Cast Iron Processing Factory from Hami Street to Dansui Factory as an effort to carry out the consistent strategy for management of business administration.
1990
Increased the capital to NT$185,500,000; launched 『Status Management Proposal for Improvement Activity』with all-out effort, took the advantage of employees’ intelligence company-wide and devoted to achieve the goal of improvement and the R&D tasks.

1992

Approved by Bureau of Commodity Inspection and Quarantine, Ministry of Economic Affairs to be eligible for the registration of ISO-9002; extended and certified for the eligibility registration of ISO-9001(the first valves manufacturer in Taiwan honored).
1999
Qualified for the certification of UL/FM firefighting valves.

2000

Planned to expand production line, established an Oil-free Product Processing Center in a Clean Room to support the demand from domestic semiconductor manufacturers for their plant construction, expand the overseas base of operation and set up Shanghai Representative Office at Financial Center of Lujiazui, Pu Dong New District.
2001
Introduced the ISO-9001 system; the first manufacture in Taiwan obtained the ISO-9001 certificate through the accreditation by Bureau of Commodity Inspection and Quarantine, Ministry of Economic.

2003

Introduced ISO-9001 system to production process in Clean Room (oil-less products), the first manufacturer in Taiwan obtained the ISO-9001 certificate for its Standard Operating Procedures of Clean Room through the accreditation by Bureau of Commodity Inspection and Quarantine, Ministry of Economic.

2004

Joint-ventured with Japan IHARA SCIENCE to establish Ihara Science Co., Ltd. in Taiwan and jointly undertake the sales and marketing promotion in semiconductor industry and LCD manufacturing industry for their variety of high standard EP, AP class valves and pipe fittings.

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2003

Completed the construction of first stage for Ningbo Tong Kwang Hardware Co., Ltd. in May with an area of about 34,667 m2 occupied. The area of construction for the factory of 1st stage occupied an area of about 8,388m2 including three factory buildings, administration building and dormitory. Japan Kurimoto , Ltd. invested capital and technology in the company.
2004
Cooperated with Japan KURIMOTO at Zhejiang Ningbo Factory, set up additional processes and equipment for butterfly valve of big size, established the certification system (IS0-9001 included), put the clamping-type flanged butterfly of 250m/m ~ 3000m/m into production to the standards of AWWA or JWWA.

2005

Kickoff of construction for the 2nd stage construction of Zhejiang Ningbo Factory, scheduled to complete the 2nd stage construction at the end of year 2005, continuously expanded the production of butterfly valve of big size.