While we are definitely not a resource for growing techniques or production of Kratom, we can discuss its pharmacology. It's analagous to Opium, in that you're dealing with a relatively large amount of plant matter, which contains an active Opioid. This substance is called Mitragynine and is believed to be responsible for most of the positive, reinforcing effects of the plant. Like Opium, its fair to assume that there are other, lesser chemicals at play that may or may not influence the end-effect of the plant. We don't really know for sure, as although Kratom has a long history of consumption in its native area (Southeast Asia mostly), it hasn't been studied extensively and compared to Opium, it's barely been studied at all.
Over the years, I've seen a lot of people using and talking about Kratom. I would have to guess that the vast majority of users are not intially aware of the fact that they're using an Opioid. I wish it were advertised as such, because it's almost commonplace to find people here in the forums dependent upon it with no true notion of nature of the substance that they're ingesting.
