HI , 144 hours transit visa

PLEASE CAN YOU LET ME KNOW DO WE ELIGIBLE TO GET A 144 HOURS FREE TRANSIT .

WE ARE FLYING FROM SYDNEY TO BEIJING, STAYING BEIJING 4 DAYS . THAN FROM BEIJING TO KATHMANDU STAYING KATHMANDU 7 DAYS AND BACK TO SYDNEY.
I HAVE DIRECT FLIGHT FORM SYDNEY TO BEIJING BUT FROM BEIJING TO KATHMANDU 2.5 HOURS LAYOVER AT KMG KUNMING .
I DO GOT ONE TICKET FORM CHINES EASTERN AIRLINE
THANKS