So they are using silkworm silk turning it to powder adding spider protein and spinning it.
They are under the excat restrictions KBLB is under. They need cheap labor halfway across the world...shipping, labor, third world politics, seasonal issues, weather, mulberry leaves/food etc etc
AND THEN they need to do all the processing and spinning.
Feel free to correct me if I am wrong
Obvious which would be cheaper
I will also add that this patent is an improvement patent on a patent that was an improvement to RLs goat silk. The numbers involved are passed around as what "should be" and not what IS. They will need 3rd party verification in order to complete this patent. It is not against the law to put a wrong number in a patent application. You just wont get the patent without proving your numbers. If they try to patent this fiber as a silk with a 450 strength score and they can only produce a 200 they wont get the patent without rewording it