The point is that small farmers can grow the plants and sell them back to their original distributor. This is a similar business model to sericulture in which silkworms are purchased at a few days old and sold back to their original distributor as silk cocoons (after just about three weeks). The small farmers who sell those silk cocoons have nothing to do with processing into silk thread and eventually cloth. All they do is grow the worms into cocoons. The medical marijuana industry in Thailand will be employing a similar process with small farmers growing the plants and selling them back to the original distributor. There is no need for any (small) grower to have any kind of licence as they will not be involved in any processing or extraction of CBD. I hope, now, you have a better understanding of the situation. You're welcome.