This is buff bone powder for Korean style food like ddukkook (떡국), kimchi-chigae (김치찌개), Yukgae-jang (육개장) etc.
You can make ddukkook (떡국) very easily with 2 and half spoon of this material.
The main ingredient is buff leg bone from New Zealand.
Ottogi is one of the most reliable food manufacturer in Korea.
The product to be shipped has expiration date of about one year or more later.