Island Specialty Timbers (IST) is a business enterprise of Sustainable Timber Tasmania (STT) which sources and retails raw material of Tasmanian specialty timbers from harvest or salvage operations conducted on State owned Permanent Timber Production Zone land (PTPZl).

Most of these logs, stumps, or burls are sold directly to buyers in the raw form who process them into timber or slabs for value adding into buildings, boat repair or construction, veneers, furniture, turned items, musical instruments and small products for markets.