Commercial Resupply Services
CRS-2 contracts were awarded in January 2016 to Orbital ATK Cygnus , Sierra Nevada Corporation Dream Chaser , and SpaceX Dragon 2 , for cargo transport flights beginning in 2019 and expected to last through 2024 . 
<triplet> Sierra Nevada Corporation <subj> Dream Chaser <obj> product or material produced <triplet> Dream Chaser <subj> Sierra Nevada Corporation <obj> manufacturer