Bangladesh has a large market for coil, we have been doing business in this lovely country for some years, previsouly coil factory owners dont know the real name of the chemical, and those importers only call them " knock down" chemicas, and after more chinese exporters visits them, they know the chemical name and how it works better.
After some period of time, the coil chemical importing from China becomes much difficult for those importers, only some big players can import this type of chemicals, and some begins to brings mxiing chemicals, but these mixing chemical quality can not be guaranteed, also its not stable, this brings many pains for the local coil factories, they have strong demand of pure and original chemials from China.
Be carefull with those mixing chemicals, it may destroy your business reputation forever.