Equities Pte Ltd was established in 1989 and is a member of the Engtek Group. The corporate headquarters is in Singapore. Over the years, the company has been actively involved in the research and development of water and energy management. The products are currently marketed under the brand Concept520 (C520).

Concept520 has its flagship store in Kuala Lumpur Malaysia as well as factories producing water products and kitchen cabinets. Rooted in environmental consciousness and social responsibility, the company’s approach to modern lifestyle is to ensure polluted water is purified for use and consumption. They are constantly developing modern technology to help homes, offices, factories and remote areas to be able to enjoy clean water for consumption.