Hansk was established in London, England in 2000. Hansk adhere to the mission of “Technology Improves the Community’s Living Standard” and focus on the development of more advanced anti-insect technology and solution.

Hansk set up its R&D laboratory at HKSTP in 2019, which allow Hansk to work more closely with local partners in Hong Kong. Hansk collaborate with prestigious third party test institutes and universities for arthropod and toxicity test. Hansk products have obtained EPA and Oeko-Tex certificates.

Hansk is co-convenor and one of the drafting units for the Group Standard T/CTCA3-2017 “Anti-Mosquito Fabric Treated with Permethrin”, which was officiated on 1 January 2018 in China. Hansk products have been widely used in the sportswear, outdoor clothing, outdoor equipment, home textiles and commercial textile markets.

Pyrethrins are naturally-occurring compounds with insecticidal properties that are found in pyrethrum extract from certain chrysanthemum flowers. The active ingredient used by Hansk is mainly permethrin, an organic compound similar to the natural pyrethrins.

The U.S. military has been using permethrin on their uniforms for more than 30 years. Permethrin is now commonly used as an active ingredient in insect repellent clothing. Permethrin is a contact insecticide, but Hansk is able to  significantly enhance its repellency, therefore articles treated with Hansk products can both knock-down and repel insects.