I ordered my board from https://www.seeedstudio.com/ and it did not include a heatsink.
Inside an Alpha-Star-branded box were:
- the HiKey 960 board
- an 18 cm adapter cable from 5.5/2.1 mm female to 4.75/1.7 mm male for the power connector
- four 2 cm riser screws and nuts
- a "Getting Started" leaflet making references to things not included in the box (in English)
- a card warning about electrostatic discharge (in English and Chinese)
Nothing else. No heatsink, no PSU.