I have a KLM itinerary in May, the inbound being ICN-AMS-LHR and have now had to build in a side trip on China Airlines ICN-SHE-ICN with the final leg arriving around 2 hours before the ICN-AMS departure. This has a seperate PNR and is not code shared with KLM.
My questions are:-

1. Will China airlines check in my baggage from SHE back to LHR, or will I have to re-check at ICN?

2. If the CZ flight is delayed/cancelled will I have any claim for them to re-book me on the next available KLM flight (my guess is no, but thought I would ask anyway)? KLM booking is non flexible.