You're also forgetting a few things.
First, the Hanseatic League is a long, long way from the Inner Sphere. Not just is it remote in terms of sheer geographical distance (Months of Jumpship travel), but there's also a lack of inhabited worlds, recharge stations, support and so on out there. Any travel to and from the Hansa is going to be a long, slow and above all else, risky process. If your ship blows a seal or suffers a drive failure or the like, there's nothing out there to help support or repair your ship. The costs and risks probably outweigh any possible benefit from trading with a relatively poor and thinly populated periphery nation.
The second is that in the post-Jihad, the Leauge seems to have fallen out of contact with the Inner Sphere. Possibly due to the events on the Clan Homeworlds or related matters (such as Escorpio Imperio), the IS have no contact with the Hansa and no idea of what's going on. Given that efforts to travel in that region have resulted in the destruction of any IS ship that comes near there (ISP 3; Interstellar Expeditions vessels had been destroyed without warning) there's very little incentive and a lot of risk.
That aside, in general, the post-Jihad Inner Sphere has turned inwards, concentrating on rebuilding, repairing and making better futures for themselves. Communication and trade with the deep Periphery tapered off, save for exploratory missions as mentioned above. (Era Report 3145, pg 192). The post-Jihad Inner Sphere has no interest in the Deep, and is more concerned about building a better future.
In 3079, Star Corps Son Hoa was producing Gladiators, King Crabs, Warhammers and Wights, albiet at a severely reduced capacity. Star Corps had considered dismantling the plant and incorperating it into the Loburg facility instead to save on costs and consolidate production. I don't know of it's status in 3145.