Travelling from korea to Kathmandu by flight.

Hello; I am also planning to visit Nepal from Korea via Kunming. So, do we need to reclaim our luggage and do we need a G type if we travel through TAO Qingdao, SD, and KMG Kunming, YN. Actually I have 2 transits before I reach ktm from incheon. The details of the flight as follows:
Depart=> ICN Seoul, South Korea to TAO Qingdao, SD(transit:18h 35m) to KMG Kunming, YN, China (transit: 2hr 55min) and finally to KTM Kathmandu, Nepal.
[Depart : Sat, Jan 25 ICN to KTM – 2 stops 29h 20m]
Please reply.
Thanks.