* To invest around 10 bln naira per year
* Investment to help sales grow
* Shares up over 30 pct this year (Adds detail)
By Chijioke Ohuocha
LAGOS, Feb 22 (Reuters) - Nestle Nigeria aims to triple its sales in Africa's most populous nation to 350 billion naira ($2.2 bln) in 10 years as the consumer market for food and cereal booms.
The local unit of Swiss company Nestle SA, the world's biggest food group, will invest 100 billion naira ($635 mln) over the same period to achieve its sales target, chief financial officer Martin Kruegel told Reuters on Friday.
