About HTH

1870

Creation of the company in England

The HTH adventure started in the 19th century with the Mathieson family. Niel Mathieson was a Scottish chemist and businessman working in the soap industry.
In 1870, he decided to create his own business in Widnes, in Cheshire, England.
The Mathieson company quickly became a respected business, producing alkalis and glycerine from soap.

1886

Development in the USA

In 1886, Thomas Train Mathieson, the son of Niel Mathieson, arrived in the United States to supervise and develop the company, now known as Mathieson Alkali Company.
The company quickly developed to become one of the main manufacturers of alkali, synthetic ammonia and chlorine products in the United States.
In 1892, Mathieson purchased a new electrolyser which enabled him to manufacture caustic soda and extremely pure chlorine.

1928

Creation of the HTH brand

A new factory was built close to Niagara Falls, and after many years of research, the Mathieson company developed a new chlorine made with calcium hypochlorite.
Following this development, the HTH brand was trademarked for the first time in 1928. The name HTH comes from the new chlorine formula, standing for High Test Hypochlorite.

1976

HTH in the United Kingdom municipal pools

In 1976, the first export of HTH was delivered to the United Kingdom and HTH remained the number one brand for commercial pools.
For 45 years, the brand has continued to provide 75% of commercial pools which use calcium hypochlorite.

1986

HTH crosses the Atlantic

The European development of the HTH brand started in 1986 with the installation of the European head ofce in the heart of
the Loire valley.
At the time, the company had three factories in the United States and was initiating a development strategy in Europe. With the Mathieson legacy still living on, the HTH brand continued to innovate and grow with new operations in South Africa and Europe.