Topmaking mills make wool top, a semi-processed product from raw wool. The process requires that the wool be scoured (washed) and combed and sorted. The longer fibers resulting from the process are called tops, and are in a form ready for spinning. To be closer to customers, much of the industry has moved from Australia, Europe and the USA to China. The "discussion" page includes more and interesting, but unverified information.
It is important to note that a great deal of companies are doing this in Britain using British wool and fibre. The quality is excellent and most are working with the fleece from cleaning it to hand dying.