You would rather sell a hundred kilos of silk per year to a bunch of medical suppliers than own 25% of a hugely profitable medical supply company. Okay.
I guess signing that contract with Kings was a bad idea because it cut out all the competition from the ASEAN region.
When spending millions on development, companies are willing to make concessions for exclusive rights to limited markets. Heart valves take a long time to develop, test, and obtain governmental approval. You might be happy seeing several companies compete, but the risk has just tremendously increased. “What if another company beats us to marker and we lose our investment?” “What if another company files patents on the same approach we were using, so now we have to start from scratch?”
Not having good answers for those questions increases the risks to the point where every company may decide the return is not worth the risk.