The HDL donates apolipoprotein C-II (APOC2) and apolipoprotein E (APOE) to the nascent chylomicron and, thus, converts it to a mature chylomicron (often referred to simply as "chylomicron").
Apolipoprotein A1 | Apolipoprotein E | apolipoprotein E | Apolipoprotein C2 | Apolipoprotein |