"Obviously he slipped and he fell and sustained fatal injuries."
Mr Grindell said the exact distance the man fell was not yet known.
Police and a land search and rescue team were alerted to the fall by the Rescue Coordination Centre last night.
A helicopter with night vision gear then located the two climbers, who were both from New Zealand.
"The companion was flown off the mountain last night and flown back to Wanaka, and this morning we sent up a recovery team to recover the 21-year-old male who died as a result of his injuries."
Mr Grindell said Mr Kingan's body was flown off the mountain by helicopter about 9.30am today.
The man's parents have been notified but one relative still needed to be informed before his name could be released.